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  • دانلود کتاب AASHTO Standard Transportation Materials and Methods of Sampling and Testing

    دانلود کتاب AASHTO Standard Transportation Materials and Methods of Sampling and Testing

    دانلود کتاب AASHTO Standard Transportation Materials and Methods of Sampling and Testing

    استانداردهای مواد AASHTO شامل مشخصات، روش های آزمون و استانداردهای موقت است که معمولا در ساخت امکانات بزرگراه استفاده می شود. این کتاب شامل استانداردهای زیادی برای رشته عمران می باشد. ایبوک  AASHTO HM-34 شامل 5684 صفحه است. این ایبوک در ژانویه 2019 دریافت شده است و کاملا بروز می باشد. هر زمان که این ایبوک را سفارش دهید، جدیدترین نسخه ان دریافت و ارسال می شود. لیست استانداردهایی که در کتاب AASHTO Standards  HM-34 وجود دارد در بخش فهرست مطالب آورده شده است.

    خرید کتاب Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards

    فهرست مطالب استاندارد راهسازی اشتو دانلود کتاب Standard Specifications for Transportation Materials and Methods of Sampling and Testing خرید ایبوک HM-34 کتاب آیین نامه راه سازی آشتو گیگاپیپر
    دانلود کتاب Standard Specifications for Transportation Materials and Methods of Sampling and Testing خرید ایبوک HM-34 کتاب آیین نامه راه سازی آشتو

    The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities.

    They are available as a one-year online subscription. When you subscribe, you will automatically receive access to all updates published during your subscription period, as well as access to recent past editions, with changes between editions highlighted for ease of reference.

    The Materials Standards are updated three times per year, in mid-April, mid-June, and mid-August.

    Free Download AASHTO HM-34 2018

    The April Update revises the sections on Hydraulic Cement and Lime, Fresh Concrete, Hardened Concrete, Pavement Measurement, Bridge and Pavement Preservation, and Quality Assurance and Environmental.
    The June Update revises the sections on General Manufactured Materials, including Concrete Drainage Structures, Flexible and Metallic Pipe, Markings and Coatings, and Safety Devices.
    The August Update revises the sections on Geotechnical, and Bituminous Materials and Mixtures.
    The April release of the 2018 edition, now available, includes 7 new and 29 revised standards.

    دانلود ایبوک AASHTO Standard Transportation

    برای خرید کتاب آیین نامه راه سازی آشتو با مشخصات زیر با ما مکاتبه کنید.

    Year Published: 2018
    Item Pages: 4855
    ISBN Number: 9781560517108

    استانداردهای اشتو عمران

    مجموعه کامل و جامع و بروز از استانداردهای عمران، در این کتاب وجود دارد. بجای خرید استانداردهای مختلف و تک تک عمران، با خرید این ایبوک یکجا به استانداردهای مربوطه دسترسی پیدا می کنید. شامل سه بخش است.

    ContentsParts 1A. &1B. Specifications
    Parts 2A. & 2B. Tests.
    Part 3. Provisional.

    Standard Specifications for Transportation Materials and Methods of Sampling and Testing

    AASHTO., American Association of State Highway and Transportation Officials

    فهرست مطالب ایبوک Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards

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  • دانلود کتاب استاندارد Manual for Assessing Safety Hardware

    دانلود کتاب استاندارد Manual for Assessing Safety Hardware

    خرید استاندارد AASHTO دانلود کتاب Manual for Assessing Safety Hardware

    برای دانلود PDF کتاب Manual for Assessing Safety Hardware نسخه دوم سال 2016 با ما مکاتبه کنید.ایبوک اماده است و به محض واریز ، فایل PDF ارسال می شود.

    دانلود ایبوک Manual for Assessing Safety Hardware

    خرید استاندارد AASHTO ایبوک Manual for Assessing Safety Hardware دانلود PDF کتاب نسخه دوم سال 2016 Manual for Assessing Safety Hardware, Second Edition گیگاپیپر
    خرید ایبوک Manual for Assessing Safety Hardware دانلود PDF کتاب نسخه دوم سال 2016

    Manual for Assessing Safety Hardware, Second Edition

    ISBN Number: 978-1-56051-665-1
    Item Format: Download
    Item Pages: 277
    Download: MASH Implementation Agreement (0.3 MB)
    Download: Table of Contents and Introduction (1.0 MB)
    Year Published: 2016
    Price: $20.00

    URL =bookstore.transportation.org

    فهرست مطالب کتاب Manual for Assessing Safety Hardware نسخه دوم

    خرید استاندارد AASHTO ایبوک Manual for Assessing Safety Hardware برای دانلود PDF کتاب Manual for Assessing Safety Hardware نسخه دوم سال 2016 با ما مکاتبه کنید. دانلود ایبوک Manual for Assessing Safety Hardware خرید استاندارد AASHTO ایبوک Manual for Assessing Safety Hardware برای دانلود PDF کتاب نسخه دوم سال 2016 Manual for Assessing Safety Hardware, Second Edition دانلود PDF کتاب Manual for Assessing Safety Hardware, Second Edition Manual for Assessing Safety Hardware, Second Edition ISBN Number: 978-1-56051-665-1 Item Format: Download Item Pages: 277 Download: MASH Implementation Agreement (0.3 MB) Download: Table of Contents and Introduction (1.0 MB) Year Published: 2016 Price: $10.00 URL =bookstore.transportation.org فهرست مطالب ایبوک Manual for Assessing Safety Hardware TABLE OF CONTENTS Chapter 1—Introduction...........................................................................................................................................................1 1.1 PURPOSE AND SCOPE ...............................................................................................................................................1 1.2 UNDERLYING PHILOSOPHY....................................................................................................................................2 1.3 PERFORMANCE LIMITATIONS................................................................................................................................3 1.4 SAFETY FEATURES....................................................................................................................................................4 1.5 TEST LEVELS ..............................................................................................................................................................5 1.6 INTERNATIONAL HARMONIZATION .....................................................................................................................6 1.7 ANALYTICAL AND EXPERIMENTAL TOOLS ........................................................................................................6 1.8 ORGANIZATION OF MANUAL.................................................................................................................................7 Chapter 2—Test Matrices and Conditions .............................................................................................................................9 2.1 GENERAL.....................................................................................................................................................................9 2.1.1 Impact Conditions ................................................................................................................................................9 2.1.2 Tolerances on Impact Conditions ......................................................................................................................11 2.1.3 Safety Feature Orientation..................................................................................................................................13 2.2 TEST MATRICES .......................................................................................................................................................13 2.2.1 Longitudinal Barriers..........................................................................................................................................13 2.2.1.1 General ......................................................................................................................................................13 2.2.1.2 Description of Tests...................................................................................................................................15 2.2.2 Terminals and Crash Cushions ...........................................................................................................................25 2.2.2.1 General ......................................................................................................................................................25 2.2.2.2 Description of Tests...................................................................................................................................33 2.2.2.3 Other Terminals and Crash Cushion Systems...........................................................................................35 2.2.3 Truck- and Trailer-Mounted Attenuators and Variable Message Sign and Arrow Board Trailers......................36 2.2.3.1 General ......................................................................................................................................................36 2.2.3.2 Description of Tests...................................................................................................................................39 2.2.4 Support Structures, Work-Zone Trafc Control Devices, Breakaway Utility Poles, and Longitudinal Channelizers..................................................................................................................................39 2.2.4.1 General .....................................................................................................................................................39 2.2.4.2 Description of Tests...................................................................................................................................43 2.2.5 Roadside Geometric Features and Pavement Discontinuities...........................................................................44 2.3 IMPACT POINT FOR REDIRECTIVE DEVICES ...................................................................................................46 2.3.1 General ...............................................................................................................................................................46 2.3.2 Longitudinal Barriers .........................................................................................................................................46 2.3.2.1 Tests with 1100C and 2270P Vehicles ......................................................................................................48 2.3.2.2 Tests with 10000S, 36000V, and 36000T Vehicles ...................................................................................63 2.3.3 Terminals and Redirective Crash Cushions........................................................................................................63 2.3.3.1 Test 34 .......................................................................................................................................................63 2.3.3.2 Test 36 ......................................................................................................................................................64 2.3.3.3 Test 37 .......................................................................................................................................................64 2.3.3.4 Test 44 .......................................................................................................................................................65 2.4 SIDE IMPACT.............................................................................................................................................................65 Chapter 3—Test Installation .................................................................................................................................................67 3.1 GENERAL...................................................................................................................................................................67 3.2 TESTING SITE............................................................................................................................................................67 3.3 SOIL.............................................................................................................................................................................68 3.3.1 Standard Soil ......................................................................................................................................................68 3.3.2 Soil Strength .......................................................................................................................................................68 3.3.3 Special Soils .......................................................................................................................................................72 3.3.4 Embedment of Test Article .................................................................................................................................72 3.3.5 Special Structures ...............................................................................................................................................73 3.4 TEST ARTICLE...........................................................................................................................................................73 3.4.1 General ...............................................................................................................................................................73 3.4.2 Installation Details..............................................................................................................................................74 © 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law. Provided by IHS Licensee=/, User=, No reproduction or networking permitted without license from IHS Not for Resale, Free Download PDF Manual for Assessing Safety Hardware, Second Edition 3.4.2.1 Longitudinal Barriers ................................................................................................................................74 3.4.2.2 Terminals and Crash Cushions..................................................................................................................76 3.4.2.3 Support Structures, Work-Zone Trafc Control Devices, and Breakaway Utility Poles ..........................76 3.4.2.4 Truck-Mounted and Trailer-Mounted Attenuators (TMAs)......................................................................77 3.4.3 Test Installation Documentation.........................................................................................................................78 3.4.3.1 Longitudinal Barriers and Longitudinal Channelizers..............................................................................78 3.4.3.2 Terminals and Crash Cushions..................................................................................................................78 3.4.3.3 Support Structures, Work-Zone Trafc Control Devices, and Breakaway Utility Poles ..........................79 3.4.3.4 Truck-Mounted and Trailer-Mounted Attenuators (TMAs)......................................................................79 3.4.4 Test Installation Disposal....................................................................................................................................80 Chapter 4—Test Vehicle Specifcations...............................................................................................................................81 4.1 GENERAL...................................................................................................................................................................81 4.2 TEST VEHICLE DESCRIPTIONS.............................................................................................................................81 4.2.1 Production Vehicles ............................................................................................................................................83 4.2.1.1 Test Vehicle Mass......................................................................................................................................86 4.2.1.2 Ballast .......................................................................................................................................................87 4.2.1.3 Propulsion, Guidance, and Braking ..........................................................................................................88 4.2.1.4 Vehicle Damage ........................................................................................................................................88 4.2.1.5 Surrogate Occupants .................................................................................................................................89 4.2.1.6 Documentation ..........................................................................................................................................89 4.2.2 Surrogate Test Vehicles.......................................................................................................................................96 4.2.3 Truck-Mounted and Trailer-Mounted Attenuator (TMA) Support Vehicle........................................................97 4.3 VEHICLE INSTRUMENTATION ..............................................................................................................................97 4.3.1 Instrumentation Specifcations ...........................................................................................................................97 4.3.2 Accelerometer and Rate Gyro Placement and Data Reduction ..........................................................................99 Chapter 5—Test Evaluation Criteria...................................................................................................................................101 5.1 GENERAL.................................................................................................................................................................101 5.2 EVALUATION FACTORS AND CRITERIA...........................................................................................................101 5.2.1 Structural Adequacy .........................................................................................................................................104 5.2.2 Occupant Risk ..................................................................................................................................................105 5.2.3 Post-Impact Vehicular Response ......................................................................................................................108 5.3 GEOMETRIC FEATURES .......................................................................................................................................110 Chapter 6—Test Documentation........................................................................................................................................111 6.1 GENERAL REPORTING RECOMMENDATIONS.................................................................................................111 6.1.1 General Information .........................................................................................................................................111 6.1.2 Report Contents................................................................................................................................................111 6.1.3 Findings Presentation Formats .........................................................................................................................115 6.1.4 Assessment .......................................................................................................................................................117 Chapter 7—In-Service Performance Evaluation ..............................................................................................................122 7.1 PURPOSE..................................................................................................................................................................122 7.2 OBJECTIVES............................................................................................................................................................123 7.3 IN-SERVICE PERFORMANCE EVALUATION PROGRAM ................................................................................123 7.3.1 New Feature Evaluation ...................................................................................................................................123 7.3.2 Continuous Monitoring ....................................................................................................................................126 7.4 DISCUSSION............................................................................................................................................................128 Appendix A—Commentary..................................................................................................................................................129 CHAPTER ONE ..............................................................................................................................................................129 A1.2 UNDERLYING PHILOSOPHY.............................................................................................................................129 CHAPTER TWO .............................................................................................................................................................130 A2.1 GENERAL..............................................................................................................................................................130 A2.1.1 Impact Conditions..........................................................................................................................................131 A2.1.3 Safety Feature Orientation.............................................................................................................................132 A2.2.1 Longitudinal Barriers.....................................................................................................................................133 A2.2.2 Terminals and Crash Cushions .....................................................................................................................133 © 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law. Provided by IHS Licensee=/, User=, No reproduction or networking permitted without license from IHS Not for Resale, Free Download Manual for Assessing Safety Hardware, Second Edition x | Manual for Assessing Safety Hardware A2.2.3 Truck-Mounted Attenuators (TMA) ..............................................................................................................134 A2.2.4 Support Structures, Work-Zone Trafc Control Devices, Breakaway Utility Poles, and Longitudinal Channelizers.............................................................................................................................135 A2.3 IMPACT POINT FOR REDIRECTIVE DEVICES ...............................................................................................137 A2.3.2.1 Tests with 1100C and 2270P Vehicles..................................................................................................138 A2.3.2.2 Tests with 10000S, 36000V, and 36000T Vehicles ..............................................................................141 CHAPTER THREE..........................................................................................................................................................142 A3.2 TESTING SITE.......................................................................................................................................................142 A3.3 SOIL........................................................................................................................................................................142 A3.3.1 Standard Soil .................................................................................................................................................143 A3.3.2 Soil Strength ..................................................................................................................................................143 A3.3.3 Special Soils ..................................................................................................................................................144 A3.3.4 Embedment of Test Article ............................................................................................................................144 A3.4 TEST ARTICLE......................................................................................................................................................144 A3.4.2.1 Longitudinal Barriers ...........................................................................................................................144 A3.4.2.4 Truck-Mounted Attenuators (TMA).....................................................................................................145 CHAPTER FOUR............................................................................................................................................................145 A4.2 TEST VEHICLE DESCRIPTIONS........................................................................................................................145 A4.2.1 Production Vehicles .......................................................................................................................................146 A4.2.1.1 Test Vehicle Mass.................................................................................................................................147 A4.2.1.2 Ballast...................................................................................................................................................148 A4.2.1.4 Vehicle Damage....................................................................................................................................148 A4.2.1.5 Surrogate Occupants ............................................................................................................................149 A4.2.2 Surrogate Test Vehicles..................................................................................................................................149 A4.2.3 TMA Support Truck.......................................................................................................................................151 A4.3.1 Instrumentation Specifcations ......................................................................................................................152 A4.3.2 Acceleration and Rate Gyro Placement and Data Reduction ........................................................................152 CHAPTER FIVE ............................................................................................................................................................156 A5.1 GENERAL..............................................................................................................................................................156 A5.2 EVALUATION FACTORS AND CRITERIA ........................................................................................................156 A5.2.1 Structural Adequacy ......................................................................................................................................156 A5.2.2 Occupant Risk................................................................................................................................................157 A5.2.3 Post-Impact Vehicular Response ...................................................................................................................162 A5.3 GEOMETRIC FEATURES.....................................................................................................................................163 CHAPTER SIX................................................................................................................................................................164 A6.1 GENERAL REPORTING RECOMMENDATIONS..............................................................................................164 CHAPTER SEVEN .........................................................................................................................................................164 A7.1 PURPOSE ...............................................................................................................................................................164 Appendix B—Soil Strength Performance Test .................................................................................................................166 B1 Purpose.......................................................................................................................................................................166 B2 Application .................................................................................................................................................................166 B3 Instrumented Post.......................................................................................................................................................166 B4 Post Placement ...........................................................................................................................................................169 B5 Dynamic Test..............................................................................................................................................................169 B6 Assurance of Soil Performance ..................................................................................................................................171 Appendix C—Electronic & Photographic Instrumentation Specifcations ................................................................... 174 Appendix D—Analytical and Experimental Tools.............................................................................................................212 D1 Useful Techniques......................................................................................................................................................212 D1.1 Structural Design ..............................................................................................................................................212 D1.2 Static Tests ........................................................................................................................................................212 D1.3 Computer Simulations ......................................................................................................................................214 D1.4 Laboratory Dynamic Tests ...............................................................................................................................216 D1.5 Gravitational Pendulum....................................................................................................................................216 D1.6 Drop Mass/Dynamic Test Device.....................................................................................................................217 D1.7 Scale Model .....................................................................................................................................................217 D1.8 Bogie Test ........................................................................................................................................................217 © 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law. Provided by IHS Licensee=/, User=, No reproduction or networking permitted without license from IHS Not for Resale, Download Manual for Assessing Safety Hardware, Second Edition D2 Comparison of Techniques ........................................................................................................................................218 Appendix E—Measurement of Vehicle Deformation ......................................................................................................220 E1 Pre-Impact Measurements..........................................................................................................................................220 E2 Post-Impact Measurements ........................................................................................................................................222 E3 Photographic Documentation .....................................................................................................................................222 E4 Procedure for Measuring Exterior Crush ...................................................................................................................224 Appendix F—Determination of THIV, PHD, and ASI ........................................................................................................228 F1 Introduction ................................................................................................................................................................228 F2 A Guide to the Measurement of the Theoretical Head Impact Velocity (THIV) and the Post-Impact Head Deceleration (PHD) ................................................................................................................228 F2.1 General .............................................................................................................................................................228 F2.2 Theoretical Head Impact Velocity (THIV) .......................................................................................................228 F2.3 Post-Impact Head Deceleration (PHD) ............................................................................................................232 F2.4 Summary of Procedure to Compute THIV and PHD .......................................................................................232 F3 A Guide to the Measurement of the Acceleration Severity Index (ASI) ...................................................................234 F3.1 Procedure ..........................................................................................................................................................234 F3.2 Summary ...........................................................................................................................................................235 Appendix G—Occupant Risk Estimation for 1500A Vehicle..........................................................................................237 G1. Introduction...............................................................................................................................................................237 G2. Occupant Risk Values for 1500A Vehicle .................................................................................................................238 G2.1 Procedure Details .............................................................................................................................................238 Appendix H—Test Vehicle Selection Procedures.............................................................................................................242 Glossary ................................................................................................................................................................................249 References and Bibliography.............................................................................................................................................254 دانلود رایگان کتابچه استاندارد Manual for Assessing Safety Hardware چند صفحه از استاندارد Manual for Assessing Safety Hardware در ادامه بصورت رایگان قرار داده شده است، تا از کیفیت فایل PDF اطمینان پیدا کنید. خرید استاندارد AASHTO ایبوک Manual for Assessing Safety Hardware برای دانلود PDF کتاب نسخه دوم سال 2016 Manual for Assessing Safety Hardware, Second Edition خرید استاندارد AASHTO ایبوک Manual for Assessing Safety Hardware برای دانلود PDF کتاب نسخه دوم سال 2016 خرید استاندارد AASHTO ایبوک Manual for Assessing Safety Hardware برای دانلود PDF کتاب نسخه دوم سال 2016 Manual for Assessing Safety Hardware, Second Edition خرید ایبوک Manual for Assessing Safety Hardware برای دانلود PDF کتاب نسخه دوم سال 2016 Manual for Assessing Safety Hardware, Second Edition

    TABLE OF CONTENTS
    Chapter 1—Introduction………………………………………………………………………………………………………………………………………..1
    1.1 PURPOSE AND SCOPE ……………………………………………………………………………………………………………………………..1
    1.2 UNDERLYING PHILOSOPHY……………………………………………………………………………………………………………………2
    1.3 PERFORMANCE LIMITATIONS………………………………………………………………………………………………………………..3
    1.4 SAFETY FEATURES………………………………………………………………………………………………………………………………….4
    1.5 TEST LEVELS …………………………………………………………………………………………………………………………………………..5
    1.6 INTERNATIONAL HARMONIZATION ………………………………………………………………………………………………………6
    1.7 ANALYTICAL AND EXPERIMENTAL TOOLS …………………………………………………………………………………………..6
    1.8 ORGANIZATION OF MANUAL…………………………………………………………………………………………………………………7
    Chapter 2—Test Matrices and Conditions ……………………………………………………………………………………………………………..9
    2.1 GENERAL…………………………………………………………………………………………………………………………………………………9
    2.1.1 Impact Conditions ………………………………………………………………………………………………………………………………9
    2.1.2 Tolerances on Impact Conditions ……………………………………………………………………………………………………….11
    2.1.3 Safety Feature Orientation………………………………………………………………………………………………………………….13
    2.2 TEST MATRICES …………………………………………………………………………………………………………………………………….13
    2.2.1 Longitudinal Barriers…………………………………………………………………………………………………………………………13
    2.2.1.1 General ……………………………………………………………………………………………………………………………………13
    2.2.1.2 Description of Tests…………………………………………………………………………………………………………………..15
    2.2.2 Terminals and Crash Cushions ……………………………………………………………………………………………………………25
    2.2.2.1 General ……………………………………………………………………………………………………………………………………25
    2.2.2.2 Description of Tests…………………………………………………………………………………………………………………..33
    2.2.2.3 Other Terminals and Crash Cushion Systems……………………………………………………………………………….35
    2.2.3 Truck- and Trailer-Mounted Attenuators and Variable Message Sign and Arrow Board Trailers………………….36
    2.2.3.1 General ……………………………………………………………………………………………………………………………………36
    2.2.3.2 Description of Tests…………………………………………………………………………………………………………………..39
    2.2.4 Support Structures, Work-Zone Trafc Control Devices, Breakaway Utility Poles, and
    Longitudinal Channelizers………………………………………………………………………………………………………………….39
    2.2.4.1 General …………………………………………………………………………………………………………………………………..39
    2.2.4.2 Description of Tests…………………………………………………………………………………………………………………..43
    2.2.5 Roadside Geometric Features and Pavement Discontinuities…………………………………………………………………44
    2.3 IMPACT POINT FOR REDIRECTIVE DEVICES ………………………………………………………………………………………46
    2.3.1 General ……………………………………………………………………………………………………………………………………………46
    2.3.2 Longitudinal Barriers ………………………………………………………………………………………………………………………..46
    2.3.2.1 Tests with 1100C and 2270P Vehicles …………………………………………………………………………………………48
    2.3.2.2 Tests with 10000S, 36000V, and 36000T Vehicles ………………………………………………………………………..63
    2.3.3 Terminals and Redirective Crash Cushions…………………………………………………………………………………………..63
    2.3.3.1 Test 34 …………………………………………………………………………………………………………………………………….63
    2.3.3.2 Test 36 ……………………………………………………………………………………………………………………………………64
    2.3.3.3 Test 37 …………………………………………………………………………………………………………………………………….64
    2.3.3.4 Test 44 …………………………………………………………………………………………………………………………………….65
    2.4 SIDE IMPACT………………………………………………………………………………………………………………………………………….65
    Chapter 3—Test Installation ……………………………………………………………………………………………………………………………….67
    3.1 GENERAL……………………………………………………………………………………………………………………………………………….67
    3.2 TESTING SITE…………………………………………………………………………………………………………………………………………67
    3.3 SOIL………………………………………………………………………………………………………………………………………………………..68
    3.3.1 Standard Soil ……………………………………………………………………………………………………………………………………68
    3.3.2 Soil Strength …………………………………………………………………………………………………………………………………….68
    3.3.3 Special Soils …………………………………………………………………………………………………………………………………….72
    3.3.4 Embedment of Test Article …………………………………………………………………………………………………………………72
    3.3.5 Special Structures ……………………………………………………………………………………………………………………………..73
    3.4 TEST ARTICLE………………………………………………………………………………………………………………………………………..73
    3.4.1 General ……………………………………………………………………………………………………………………………………………73
    3.4.2 Installation Details…………………………………………………………………………………………………………………………….74
    © 2016 by the American Association of State Highway and Transportation Officials.
    All rights reserved. Duplication is a violation of applicable law.
    Provided by IHS Licensee=/, User=,
    No reproduction or networking permitted without license from IHS Not for Resale,

    Free Download PDF  Manual for Assessing Safety Hardware, Second Edition

    3.4.2.1 Longitudinal Barriers ………………………………………………………………………………………………………………..74
    3.4.2.2 Terminals and Crash Cushions……………………………………………………………………………………………………76
    3.4.2.3 Support Structures, Work-Zone Trafc Control Devices, and Breakaway Utility Poles ……………………..76
    3.4.2.4 Truck-Mounted and Trailer-Mounted Attenuators (TMAs)…………………………………………………………….77
    3.4.3 Test Installation Documentation………………………………………………………………………………………………………….78
    3.4.3.1 Longitudinal Barriers and Longitudinal Channelizers……………………………………………………………………78
    3.4.3.2 Terminals and Crash Cushions……………………………………………………………………………………………………78
    3.4.3.3 Support Structures, Work-Zone Trafc Control Devices, and Breakaway Utility Poles ……………………..79
    3.4.3.4 Truck-Mounted and Trailer-Mounted Attenuators (TMAs)…………………………………………………………….79
    3.4.4 Test Installation Disposal……………………………………………………………………………………………………………………80
    Chapter 4—Test Vehicle Specifcations……………………………………………………………………………………………………………….81
    4.1 GENERAL……………………………………………………………………………………………………………………………………………….81
    4.2 TEST VEHICLE DESCRIPTIONS……………………………………………………………………………………………………………..81
    4.2.1 Production Vehicles …………………………………………………………………………………………………………………………..83
    4.2.1.1 Test Vehicle Mass……………………………………………………………………………………………………………………..86
    4.2.1.2 Ballast …………………………………………………………………………………………………………………………………….87
    4.2.1.3 Propulsion, Guidance, and Braking …………………………………………………………………………………………….88
    4.2.1.4 Vehicle Damage ……………………………………………………………………………………………………………………….88
    4.2.1.5 Surrogate Occupants …………………………………………………………………………………………………………………89
    4.2.1.6 Documentation …………………………………………………………………………………………………………………………89
    4.2.2 Surrogate Test Vehicles………………………………………………………………………………………………………………………96
    4.2.3 Truck-Mounted and Trailer-Mounted Attenuator (TMA) Support Vehicle………………………………………………..97
    4.3 VEHICLE INSTRUMENTATION ………………………………………………………………………………………………………………97
    4.3.1 Instrumentation Specifcations ……………………………………………………………………………………………………………97
    4.3.2 Accelerometer and Rate Gyro Placement and Data Reduction ………………………………………………………………..99
    Chapter 5—Test Evaluation Criteria…………………………………………………………………………………………………………………..101
    5.1 GENERAL……………………………………………………………………………………………………………………………………………..101
    5.2 EVALUATION FACTORS AND CRITERIA……………………………………………………………………………………………..101
    5.2.1 Structural Adequacy ………………………………………………………………………………………………………………………..104
    5.2.2 Occupant Risk ………………………………………………………………………………………………………………………………..105
    5.2.3 Post-Impact Vehicular Response ……………………………………………………………………………………………………….108
    5.3 GEOMETRIC FEATURES ………………………………………………………………………………………………………………………110
    Chapter 6—Test Documentation……………………………………………………………………………………………………………………….111
    6.1 GENERAL REPORTING RECOMMENDATIONS…………………………………………………………………………………….111
    6.1.1 General Information ………………………………………………………………………………………………………………………..111
    6.1.2 Report Contents………………………………………………………………………………………………………………………………111
    6.1.3 Findings Presentation Formats ………………………………………………………………………………………………………….115
    6.1.4 Assessment …………………………………………………………………………………………………………………………………….117
    Chapter 7—In-Service Performance Evaluation ………………………………………………………………………………………………..122
    7.1 PURPOSE………………………………………………………………………………………………………………………………………………122
    7.2 OBJECTIVES…………………………………………………………………………………………………………………………………………123
    7.3 IN-SERVICE PERFORMANCE EVALUATION PROGRAM ……………………………………………………………………..123
    7.3.1 New Feature Evaluation …………………………………………………………………………………………………………………..123
    7.3.2 Continuous Monitoring ……………………………………………………………………………………………………………………126
    7.4 DISCUSSION…………………………………………………………………………………………………………………………………………128
    Appendix A—Commentary………………………………………………………………………………………………………………………………..129
    CHAPTER ONE …………………………………………………………………………………………………………………………………………..129
    A1.2 UNDERLYING PHILOSOPHY……………………………………………………………………………………………………………..129
    CHAPTER TWO ………………………………………………………………………………………………………………………………………….130
    A2.1 GENERAL…………………………………………………………………………………………………………………………………………..130
    A2.1.1 Impact Conditions…………………………………………………………………………………………………………………………131
    A2.1.3 Safety Feature Orientation……………………………………………………………………………………………………………..132
    A2.2.1 Longitudinal Barriers…………………………………………………………………………………………………………………….133
    A2.2.2 Terminals and Crash Cushions ………………………………………………………………………………………………………133
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    A2.2.3 Truck-Mounted Attenuators (TMA) ………………………………………………………………………………………………..134
    A2.2.4 Support Structures, Work-Zone Trafc Control Devices, Breakaway Utility Poles, and
    Longitudinal Channelizers……………………………………………………………………………………………………………..135
    A2.3 IMPACT POINT FOR REDIRECTIVE DEVICES …………………………………………………………………………………..137
    A2.3.2.1 Tests with 1100C and 2270P Vehicles……………………………………………………………………………………..138
    A2.3.2.2 Tests with 10000S, 36000V, and 36000T Vehicles ……………………………………………………………………141
    CHAPTER THREE……………………………………………………………………………………………………………………………………….142
    A3.2 TESTING SITE…………………………………………………………………………………………………………………………………….142
    A3.3 SOIL……………………………………………………………………………………………………………………………………………………142
    A3.3.1 Standard Soil ……………………………………………………………………………………………………………………………….143
    A3.3.2 Soil Strength ………………………………………………………………………………………………………………………………..143
    A3.3.3 Special Soils ………………………………………………………………………………………………………………………………..144
    A3.3.4 Embedment of Test Article …………………………………………………………………………………………………………….144
    A3.4 TEST ARTICLE……………………………………………………………………………………………………………………………………144
    A3.4.2.1 Longitudinal Barriers ……………………………………………………………………………………………………………144
    A3.4.2.4 Truck-Mounted Attenuators (TMA)………………………………………………………………………………………..145
    CHAPTER FOUR…………………………………………………………………………………………………………………………………………145
    A4.2 TEST VEHICLE DESCRIPTIONS…………………………………………………………………………………………………………145
    A4.2.1 Production Vehicles ………………………………………………………………………………………………………………………146
    A4.2.1.1 Test Vehicle Mass…………………………………………………………………………………………………………………147
    A4.2.1.2 Ballast…………………………………………………………………………………………………………………………………148
    A4.2.1.4 Vehicle Damage……………………………………………………………………………………………………………………148
    A4.2.1.5 Surrogate Occupants …………………………………………………………………………………………………………….149
    A4.2.2 Surrogate Test Vehicles………………………………………………………………………………………………………………….149
    A4.2.3 TMA Support Truck………………………………………………………………………………………………………………………151
    A4.3.1 Instrumentation Specifcations ……………………………………………………………………………………………………….152
    A4.3.2 Acceleration and Rate Gyro Placement and Data Reduction ………………………………………………………………152
    CHAPTER FIVE …………………………………………………………………………………………………………………………………………156
    A5.1 GENERAL…………………………………………………………………………………………………………………………………………..156
    A5.2 EVALUATION FACTORS AND CRITERIA …………………………………………………………………………………………..156
    A5.2.1 Structural Adequacy ……………………………………………………………………………………………………………………..156
    A5.2.2 Occupant Risk………………………………………………………………………………………………………………………………157
    A5.2.3 Post-Impact Vehicular Response …………………………………………………………………………………………………….162
    A5.3 GEOMETRIC FEATURES…………………………………………………………………………………………………………………….163
    CHAPTER SIX…………………………………………………………………………………………………………………………………………….164
    A6.1 GENERAL REPORTING RECOMMENDATIONS………………………………………………………………………………….164
    CHAPTER SEVEN ………………………………………………………………………………………………………………………………………164
    A7.1 PURPOSE ……………………………………………………………………………………………………………………………………………164
    Appendix B—Soil Strength Performance Test …………………………………………………………………………………………………..166
    B1 Purpose…………………………………………………………………………………………………………………………………………………..166
    B2 Application ……………………………………………………………………………………………………………………………………………..166
    B3 Instrumented Post…………………………………………………………………………………………………………………………………….166
    B4 Post Placement ………………………………………………………………………………………………………………………………………..169
    B5 Dynamic Test…………………………………………………………………………………………………………………………………………..169
    B6 Assurance of Soil Performance ………………………………………………………………………………………………………………….171
    Appendix C—Electronic & Photographic Instrumentation Specifcations …………………………………………………………. 174
    Appendix D—Analytical and Experimental Tools……………………………………………………………………………………………….212
    D1 Useful Techniques……………………………………………………………………………………………………………………………………212
    D1.1 Structural Design …………………………………………………………………………………………………………………………….212
    D1.2 Static Tests ……………………………………………………………………………………………………………………………………..212
    D1.3 Computer Simulations ……………………………………………………………………………………………………………………..214
    D1.4 Laboratory Dynamic Tests ……………………………………………………………………………………………………………….216
    D1.5 Gravitational Pendulum……………………………………………………………………………………………………………………216
    D1.6 Drop Mass/Dynamic Test Device………………………………………………………………………………………………………217
    D1.7 Scale Model …………………………………………………………………………………………………………………………………..217
    D1.8 Bogie Test ……………………………………………………………………………………………………………………………………..217
    © 2016 by the American Association of State Highway and Transportation Officials.
    All rights reserved. Duplication is a violation of applicable law.
    Provided by IHS Licensee=/, User=,
    No reproduction or networking permitted without license from IHS Not for Resale,

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    D2 Comparison of Techniques ……………………………………………………………………………………………………………………….218
    Appendix E—Measurement of Vehicle Deformation …………………………………………………………………………………………220
    E1 Pre-Impact Measurements…………………………………………………………………………………………………………………………220
    E2 Post-Impact Measurements ……………………………………………………………………………………………………………………….222
    E3 Photographic Documentation …………………………………………………………………………………………………………………….222
    E4 Procedure for Measuring Exterior Crush …………………………………………………………………………………………………….224
    Appendix F—Determination of THIV, PHD, and ASI …………………………………………………………………………………………..228
    F1 Introduction …………………………………………………………………………………………………………………………………………….228
    F2 A Guide to the Measurement of the Theoretical Head Impact Velocity (THIV) and
    the Post-Impact Head Deceleration (PHD) ………………………………………………………………………………………………….228
    F2.1 General ………………………………………………………………………………………………………………………………………….228
    F2.2 Theoretical Head Impact Velocity (THIV) ………………………………………………………………………………………….228
    F2.3 Post-Impact Head Deceleration (PHD) ………………………………………………………………………………………………232
    F2.4 Summary of Procedure to Compute THIV and PHD ……………………………………………………………………………232
    F3 A Guide to the Measurement of the Acceleration Severity Index (ASI) ………………………………………………………….234
    F3.1 Procedure ……………………………………………………………………………………………………………………………………….234
    F3.2 Summary ………………………………………………………………………………………………………………………………………..235
    Appendix G—Occupant Risk Estimation for 1500A Vehicle………………………………………………………………………………237
    G1. Introduction……………………………………………………………………………………………………………………………………………237
    G2. Occupant Risk Values for 1500A Vehicle …………………………………………………………………………………………………..238
    G2.1 Procedure Details ……………………………………………………………………………………………………………………………238
    Appendix H—Test Vehicle Selection Procedures……………………………………………………………………………………………….242
    Glossary …………………………………………………………………………………………………………………………………………………………..249
    References and Bibliography……………………………………………………………………………………………………………………………254

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  • استاندارد AASHTO

    استاندارد AASHTO

    درباره انجمن ادارات حمل ونقل و بزرگراه های ایالتی امریکا (AASHTO)

    AASHTO is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all five transportation modes: air, highways, public transportation, rail, and water. Its primary goal is to foster the development, operation, and maintenance of an integrated national transportation system.

    As the voice of transportation, AASHTO works to educate the public and key decision makers about the critical role that transportation plays in securing a good quality of life and sound economy for our nation. AASHTO serves as a liaison between state departments of transportation and the Federal government. AASHTO is an international leader in setting technical standards for all phases of highway system development. Standards are issued for design, construction of highways and bridges, materials, and many other technical areas.

    AASHTO serves as a catalyst for excellence in transportation by offering smart solutions and promising practices; critical information, training and data; direct technical assistance to states; and unchallenged expertise.

    IHS carries all AASHTO specifications, provisional standards, standard test methods, recommended practices, guide specifications, manuals, the Bridge Welding Code, annual meeting procedures, the Reference Book of Member Department Personnel & Committees, U.S. Numbered Highways, and interstates research.

    دانلود استاندارد AASHTO 

    برای خرید استاندارد AASHTO و دریافت استانداردهای American Association of State Highway and Transportation Officials  و دانلود استانداردهای انجمن آمریکایی بزرگراه های دولتی و مقامات حمل و نقل با ما مکاتبه کنید.

    استاندارد انجمن ادارات حمل ونقل و بزرگراه های ايالتی امريکا – American Association of State

    دانلود استاندارد AASHTO خرید استاندارد AASHTO درخواست استانداردهای آشتو فروش پکیج کامل استاندارد اشتو دریافت استانداردهای American Association of State Highway and Transportation Officials گیگاپیپر
    دانلود استاندارد AASHTO خرید استاندارد AASHTO درخواست استانداردهای آشتو فروش پکیج کامل استاندارد اشتو

    نحوه درخواست استاندارد اشتو

    برای خرید استاندارد AASHTO ، لطفا مشخصات استاندارد AASHTO درخواستی خود را با فرمت زیر به ایمیل ایمیل گیگاپیپر برای خرید استاندارد AASHTO و دریافت استانداردهای American Association of State Highway and Transportation Officials و دانلود استانداردهای انجمن آمریکایی بزرگراه های دولتی و مقامات حمل و نقل ارسال بفرمایید.

    مشخصات استاندارد درخواستی AASHTO به عنوان مثال
    شماره استاندارد AASHTO : AASHTO M 286-18
    عنوان استاندارد AASHTO : Standard Specification for Smooth-Tread Standard Tire for Special-Purpose
    زبان استاندارد آشتو : ENG
    سال انتشار اشتو : 2018
    لینک استاندارد آشتو : https://www.techstreet.com/standards/aashto-m-286-18?product_id=2012537

    هزینه استاندارد AASHTO

    قیمت هر فایل استاندارد American Association of State Highway and Transportation Officials (AASHTO) در ادامه امده است.

    تعداد استاندارد AASHTO هزینه استاندارد استاندارد آشتو به تومان
    1-5 8000
    6-10 6500
    بالاتر از 10 استاندارد توافقی

    نکات

    1- بعد از تهیه استاندارد استاندارد آشتو به شما اطلاع می دهیم تا هزینه آن را واریز کرده ، سپس استاندارد AASHTO را برای شما ارسال می کنیم.

    2- برخی از استانداردهای آشتو خاص بوده و قیمت آن توافقی می باشد.

    3- درخواست تهیه استاندارد American Association of State Highway and Transportation Officials به صورت پکیجی (مجموعه ای) با قیمتی مناسب انجام می شود.

    اطلاعات بیشتر در مورد استاندارد فروش پکیج کامل استاندارد  AASHTO :

    پکیج کامل استاندارد AASHTO و همچنین پکیج های ماهیانه و سالیانه AASHTO با تخفیفات ویژه موجود می باشد. برای اطلاع از قیمتها و شرایط ویژه ایمیل بزنید.

    جدیدترین استانداردهای AASHTO 

    در ادامه تعدادی از استانداردهای جدید AASHTO موجود در آرشیو گیگاپیپر را مشاهده می کنید.

    AASHTO SS
    2017 AASHTO Salary Survey – Includes Access to Additional Content
    Active March, 2018 AASHTO Standards Expert
    Redline
    AASHTO APH
    Partnering Handbook – Revision 2
    Active 2018 AASHTO Standards Expert
    AASHTO HM-2018 PT I
    Standard specifications for transportation materials and Methods of sampling and testing and provisional standards
    Active 2018 AASHTO Standards Expert
    Revision Group
    AASHTO M 85
    Standard Specification for Portland Cement
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO M 240M/M 240
    Standard Specification for Blended Hydraulic Cement
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO M 261
    Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests
    Active 2018 AASHTO Standards Expert
    AASHTO M 286
    Standard Specification for Smooth-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests
    Active 2018 AASHTO Standards Expert
    AASHTO M 302
    Standard Specification for Slag Cement for Use in Concrete and Mortars
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO M 327
    Standard Specification for Processing Additions for Use in the Manufacture of Hydraulic Cements
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO MBE
    The Manual for Bridge Evaluation – 3rd Edition
    Active 2018 AASHTO Standards Expert
    Redline

    AASHTO MP 34
    Standard Specification for Materials for Sand Seals
    Active 2018 AASHTO Standards Expert
    AASHTO MP 35
    Standard Specification for Thin Overlay Treatments Using a Binder Resin System and Aggregate for Concrete Surfaces
    Active 2018 AASHTO Standards Expert
    AASHTO PP 80
    Standard Practice for Continuous Thermal Profile of Asphalt Mixture Construction
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO PP 81
    Standard Practice for Intelligent Compaction Technology for Embankment and Asphalt Pavement Applications
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO PP 89
    Standard Practice for Grinding the Ends of Cylindrical Concrete Specimens
    Active 2018 AASHTO Standards Expert
    AASHTO PP 90
    Standard Practice for Sand Seal Design
    Active 2018 AASHTO Standards Expert
    AASHTO PP 91
    Standard Practice for Emulsified Asphalt Scrub Seal Design
    Active 2018 AASHTO Standards Expert
    AASHTO R 18
    Standard Recommended Practice for Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO R 25
    Standard Practice for Technician Training and Certification Programs
    Active 2018 AASHTO Standards Expert
    AASHTO R 70M/R 70
    Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete
    Active 2018 AASHTO Standards Expert
    Redline

    AASHTO R 85
    Standard Practice for Quantifying Cracks in Asphalt Pavement Surfaces from Collected Pavement Images Utilizing Automated Methods
    Active 2018 AASHTO Standards Expert
    AASHTO R 86
    Standard Practice for Collecting Images of Pavement Surfaces for Distress Detection
    Active 2018 AASHTO Standards Expert
    AASHTO R 87
    Standard Practice for Determining Pavement Deformation Parameters and Cross Slope from Collected Transverse Profiles
    Active 2018 AASHTO Standards Expert
    AASHTO R 88
    Standard Practice for Collecting the Transverse Pavement Profile
    Active 2018 AASHTO Standards Expert
    AASHTO R 89
    Standard Practice for Accreditation Bodies Operating in the Fields of Construction Materials Testing and Inspection
    Active 2018 AASHTO Standards Expert
    AASHTO SSFP
    Survey of State Funding for Public Transportation – Revision 12
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 23
    Standard Method of Test for Making and Curing Concrete Test Specimens in the Field
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 97
    Standard Method of Test for Flexural Strength of Concrete (Using Simple Beam with Third- Point Loading)
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 106M/T 106
    Standard Method of Test for Compressive Strength of Hydraulic Cement Mortar (Using 50-mm or 2-in.Cube Specimens)
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 107M/T 107
    Standard Method of Test for Autoclave Expansion of Hydraulic Cement
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 119M/T 119
    Standard Method of Test for Slump of Hydraulic Cement Concrete
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 154
    Standard Method of Test for Time of Setting of Hydraulic Cement Paste by Gillmore Needles
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 242
    Standard Method of Test for Frictional Properties of Paved Surfaces Using a Full-Scale Tire
    Active 2018 AASHTO Standards Expert
    AASHTO T 279
    Standard Method of Test for Accelerated Polishing of Aggregates Using the British Wheel
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 359M/T 359
    Standard Method of Test for Pavement Thickness by Magnetic Pulse Induction
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO T 379
    Standard Method of Test for Nonlinear Impact Resonance Acoustic Spectroscopy (NIRAS) for Concrete Specimens with Damage from the Alkali–Silica Reaction (ASR)
    Active 2018 AASHTO Standards Expert
    AASHTO T 380
    Standard Method of Test for Potential Alkali Reactivity of Aggregates and Effectiveness of ASR Mitigation Measures (Miniature Concrete Prism Test, MCPT)
    Active 2018 AASHTO Standards Expert
    AASHTO TP 99
    Standard Method of Test for Determining the Influence of Road Surfaces on Traffic Noise Using the Continuous-Flow Traffic Time-Integrated Method (CTIM)
    Active 2018 AASHTO Standards Expert
    Redline
    AASHTO TP 129
    Standard Method of Test for Vibrating Kelly Ball (VKelly) Penetration in Fresh Portland Cement Concrete
    Active 2018 AASHTO Standards Expert
    AASHTO LRFD-8
    AASHTO LRFD Bridge Design Specifications – Eight Edition; Incorporating Errata: May 2018
    Active November, 2017 AASHTO Standards Expert
    AASHTO LRFDUS
    AASHTO LRFD Bridge Design Specifications – Eighth Edition
    Active September, 2017 AASHTO Standards Expert
    AASHTO PH18
    PRACTITIONER’S HANDBOOK ADDRESSING AIR QUALITY ISSUES IN THE NEPA PROCESS FOR HIGHWAY PROJECTS – Revision 1
    Active June, 2017 AASHTO Standards Expert
    AASHTO CGDOT-1
    Communications Guide For State DEpartments of Transportation
    Active February, 2017 AASHTO Standards Expert
    AASHTO CHBTW
    Construction Handbook for Bridge Temporary Works – Second Editionn
    Active 2017 AASHTO Standards Expert
    AASHTO GSBTW
    GUIDE DESIGN SPECIFICATIONS FOR BRIDGE TEMPORARY WORKS – 2nd Edition
    Active 2017 AASHTO Standards Expert
    AASHTO GSWLB
    Guide Specifications for Wind Loads on Bridges During Construction – First Edition
    Active 2017 AASHTO Standards Expert
    AASHTO HM-2017 PT III
    Standard Specifications for Transportation Materials and Methods of Sampling and Testing and Aashto Provisional Standards – 2017 Edition
    Active 2017 AASHTO Standards Expert
    Revision Group
    AASHTO HM-2017 PT II
    Standard Specifications for Transportation Materials and Methods of Sampling and Testing and AASHTO Provisional Standards Part 2: Tests – 2017 Edition
    Active 2017 AASHTO Standards Expert
    Revision Group
    AASHTO HM-2017
    STANDARD SPECIFICATIONS for TRANSPORTATION MATERIALS and METHODS OF SAMPLING AND TESTING AND AASHTO PROVISIONAL STANDARDS – 2017 Edition; Part 1:2017, Part 2:2017, Part 3:2017
    Active 2017 AASHTO Standards Expert
    Revision Group
    AASHTO LRFDCONS
    LRFD Bridge Construction Specifications – Fourth Edition
    Active 2017 AASHTO Standards Expert

    فرم درخواست استاندارد AASHTO

    مشخصات استاندارد AASHTO مورد نظر را در فرم زیر وارد کنید و بر روی ارسال کلیک کنید. نتیجه از طریق ایمیل اعلام شده، ارسال می شود.

      ایمیل شما (الزامی)

      شماره و اسم استاندارد (اجباری)

      لینک استاندارد از http://techstreet.com (اجباری)

      تلفن (اختیاری)

      نام شما (اختیاری)

      توضیحات تکمیلی (شامل اطلاعات واریزی – به کدام بانک ما هزینه واریز شده؟ چه مبلغی؟ چه تاریخی؟