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خرید کتاب راهنمای بهره وری ساخت و ساز

دانلود کتاب CII IR252-2D The Construction Productivity Handbook

Over the course of five phases, the CII Construction Productivity Research Program investigated practices that are known to improve construction productivity, but for one reason or another, are rarely integrated on individual projects. The program explored volumes of research and bodies of knowledge about the factors that influence productivity, practices used on jobsites to control it, and challenges to accurately and consistently measuring it to provide useful industry metrics. Much like the construction industry itself, information about construction productivity is fragmented, existing in volumes of technical reports, academic journals, student theses, and assorted company handbooks.

This Construction Productivity Handbook makes a significant contribution to industry practice and the body of knowledge by synthesizing information about construction productivity into a single source. Although much of the material in this handbook originates from other sources, the handbook also presents the comprehensive body of new knowledge developed during the five phases of the CII Construction Productivity Research Program. This handbook is intended to be used in three ways: 1) as a reference for productivity experts, 2) as a guide to improving productivity for industry practitioners, and 3) as a construction productivity textbook in construction and engineering university programs.

دانلود هندبوک راهنمای بهره وری ساخت و ساز 252

در طول پنج مرحله، برنامه تحقیقاتی بهره وری ساخت و ساز CII شیوه هایی را بررسی کرد که برای بهبود بهره وری ساخت و ساز شناخته شده اند، اما به دلایلی به ندرت در پروژه های فردی ادغام می شوند. این برنامه حجم تحقیقات و مجموعه‌ای از دانش را در مورد عواملی که بر بهره‌وری تأثیر می‌گذارند، شیوه‌های مورد استفاده در مکان‌های شغلی برای کنترل آن، و چالش‌های اندازه‌گیری دقیق و پیوسته آن برای ارائه معیارهای صنعتی مفید را بررسی کرد. مانند خود صنعت ساخت و ساز، اطلاعات مربوط به بهره وری ساخت و ساز پراکنده است و در مجلدات گزارش های فنی، مجلات دانشگاهی، پایان نامه های دانشجویی و کتاب های راهنمای شرکت های مختلف موجود است.

این کتابچه راهنمای بهره وری ساخت و ساز با ترکیب کردن اطلاعات مربوط به بهره وری ساخت و ساز در یک منبع واحد، کمک قابل توجهی به عملکرد صنعت و مجموعه دانش می کند. اگرچه بسیاری از مطالب این کتاب راهنما از منابع دیگر نشأت می‌گیرد، کتاب راهنما همچنین مجموعه جامعی از دانش جدید را ارائه می‌کند که در طول پنج مرحله برنامه تحقیقاتی بهره‌وری ساخت‌وساز CII توسعه یافته است. این کتاب راهنما به سه صورت در نظر گرفته شده است: 1) به عنوان مرجع برای کارشناسان بهره وری، 2) به عنوان راهنمای بهبود بهره وری برای دست اندرکاران صنعت، و 3) به عنوان کتاب درسی بهره وری ساخت و ساز در برنامه های دانشگاه های ساختمانی و مهندسی.

چکیده CII IR252-2d-2013- The Construction Productivity Handbook

Executive Summary
Over the course of five phases, the CII Construction Productivity Research Program investigated
practices that are known to improve construction productivity, but for one reason or another, are
rarely integrated on individual projects. The program explored volumes of research and bodies of
knowledge about the factors that influence productivity, practices used on jobsites to control it, and
challenges to accurately and consistently measuring it to provide useful industry metrics. Much like
the construction industry itself, information about construction productivity is fragmented, existing in
volumes of technical reports, academic journals, student theses, and assorted company handbooks.
This Construction Productivity Handbook makes a significant contribution to industry practice
and the body of knowledge by synthesizing information about construction productivity into a single
source. Although much of the material in this handbook originates from other sources, the handbook
also presents the comprehensive body of new knowledge developed during the five phases of the CII
Construction Productivity Research Program. This handbook is intended to be used in three ways: 1)
as a reference for productivity experts, 2) as a guide to improving productivity for industry practitioners,
and 3) as a construction productivity textbook in construction and engineering university programs.

فهرست مطالب هندبوک Research Team 252, Construction Productivity Research Program

The Construction Productivity Handbook
Research Team 252, Construction Productivity Research Program
Construction Industry Institute
Implementation Resource 252-2d
October 2013

The Need for Consistent Measures of Construction Productivity
137
Index
145
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vii
List of Tables
Table 2.1. Methods of quantity measurement
8
Table 2.2. Direct and Indirect Work Hours
9
Table 4.1. Structure of the BPPII for Industrial Projects
42
Table 5.1. Pipe Support Cost Comparison between Welded and
61
Weldless/Modularized Pipe Support System
Table 5.2. Typical Pipe Diameters and Materials for Weldless Piping
63
Table 5.3. Comparison of Modular, Prefabricated, and Stick-built Formwork Systems
67
Table 5.4. The Benefits and Limitations of Using Modular Formwork
69
Table 6.1. Recommended Rework Root Causes Classification Tree
80
Table 6.2. Rework Reduction Programs in the Management Hierarchy
81
Table 6.3. Rework Evaluation Structure
84
Table 7.1. Workers’ Perspectives of the Factors that Affect Construction Labor
90
Productivity
Table 7.2. The Most Significant Factors for Each Trade Group
96
Table 7.3. Checklist of Responsibilities and Expectations for Discipline Superintendents
98
Table 7.4. Checklist of Responsibilities and Expectations for the General Foreman
99
and Craft Foremen
Table 7.5. Checklist of Roles and Responsibilities for Craft Foreman and Supervisor
101
Table 7.6. CWDA Sections, Questions, and Average Importance Weights
103
Table 7.7. Summary of Expected Benefits of Craft Training Identified by CII RT 231
Survey
107
Table 7.8. Expected Benefits and Costs on Model Plants with Craft Training in 2006
Dollars
109
Table 8.1. Methods Used to Obtaining Information that Can Identify Barriers to
Productivity and Ways to Improve Productivity
113
Table 8.2. Detail Tasks and Guides of Activity Analysis
115
Table 8.3. A Section of the VOW Tool
120
Table 8.4. IE Techniques Identified for the Construction Industry
129
Table 10.1. A Summary of Existing Mechanical Piping Codes of Accounts
139
Table 10.2. An Example of Piping Code Breakdowns by Six Companies
141
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List of Figures
Figure 3.1. Journeymen Productivity at 30- to 90-percent Relative Humidity
15
Figure 3.2. Effects of Weather on Mason Productivity
15
Figure 3.3. The Effects of Acceleration on Productivity in Electrical Projects
16
Figure 3.4. Effect of Crowding on Labor Efficiency
18
Figure 3.5. Effects of Crew Overloading on Efficiency
19
Figure 3.6. Cumulative Effect of Overtime on Productivty
20
Figure 3.7. Effect of Shift Work on Piping Productivity
21
Figure 3.8. Effects of Change Orders on Productivity Loss
23
Figure 3.9. Effects of Absenteeism on Productivity Loss
24
Figure 3.10. Learning Curve Models
26
Figure 3.11. Percentage of Those in Employment Working and Average Minutes Worked
by Day of the Week
27
Figure 3.12. Diminishing Benefits from Multiskilling
30
Figure 4.1. A BPPII Rating
50
Figure 4.2. A Sample BPPII Score Report
51
Figure 5.1. Spool and Valve Locations at the Port
55
Figure 5.2. Number of RFID Tags (Pipe Spools) in Each Laydown Area by Week
56
Figure 5.3. Cost-benefit of Information Value Lost over Time
58
Figure 5.4. Cost-benefit Example of Lost Productivity
58
Figure 5.5. Weldless and Modular Pipe Supports
60
Figure 5.6. Anatomy of a Grooved Joint
63
Figure 5.7. A Quick-connect Structural Pipe Support
63
Figure 5.8. Comparison of Structural Steel Connection Work Processes
64
Figure 5.9. SCC Slump Test Measurement
65
Figure 5.10. Labor Unit Rates for Concrete Placement of Wall Sections
Using SCC and Conventional Concrete
66
Figure 5.11. Rebar Cages Made from Grade 60 Reinforced Steel and Grade 100
Reinforced Steel
70
Figure 5.12. Sample Beam Design
71
Figure 5.13. Scatter Plot with Quadratic Regression Line for the Percent Change
in Labor Productivity on the Technology Index, 1976–1998
75
Figure 5.14. Box Plot of Validation Approach
76
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Figure 6.1. RRP Process Flow Chart
82
Figure 6.2. Rework Impact Evaluation and Trend Analysis
83
Figure 6.3. Corrective Action Planning Process
84
Figure 7.1. CWDA Scoring Mechanism
105
Figure 7.2. Comparison of CWDA Scores and Safety Performance
106
Figure 7.3. Performance Factor versus Percentage of Certified-plus Craft Professionals
108
Figure 8.1. Activity Analysis Continuous Improvement Process
114
Figure 8.2. Foreman Delay Survey Instruction Sheet
118
Figure 8.3. Foreman Delay Survey Form
119
Figure 8.4. VOW Tool Implementation Process
121
Figure 8.5. Example of Five-minute Rating
122
Figure 8.6. Initial Crew Balance Chart for Excavation
124
Figure 8.7. Revised Crew Balance Chart for Excavation
125
Figure 8.8. Process Chart Symbols (Oglesby 1989; Olomolaiye 1998)
126
Figure 8.9. Sample Steel Erection Flow Diagram and Process Chart
127
Figure 8.10. Revised Steel Erection Flow Diagram and Process Chart
127
Figure 9.1. Lean Wheel
132

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