建筑施工计划与进度控制 第3版PDF电子书下载

CHAPTER 1 INTRODUCTION 1

Bar Charts 2

Shortcomings of Bar Charts 3

The Sports Facility Project 7

Value of Bar Charts 7

Other Scheduling Approaches 10

Work Breakdown Structure 13

Reasons for Planning and Scheduling in Construction 20

Review Questions 21

CHAPTER 2 DEVELOPING A NETWORK MODEL 22

Steps in Building a Network Model 22

Defining Activities 23

Ordering Activities 25

Drawing the Network Diagram 28

Assigning Durations to Activities 31

Assigning Resources and Costs 32

Calculating Early and Late Start/Finish Times 32

Identify the Critical Path 32

Scheduling Activity Start/Finish Times 33

Final Comments 33

Review Questions 33

CHAPTER 3 PRECEDENCE DIAGRAMS 35

Precedence(Activity-on-Node) Networks 35

Activity Relationships 36

Basics about Precedence Diagrams 45

Calculations on a Precedence Network 49

Independent Float and Interfering Float 55

Computations for Different Activity Relationships 58

Final Comments 61

Review Problems 61

CHAPTER 4 DETERMINING ACTIVITY DURATIONS 72

Estimating 72

Types of Estimates 73

Conceptual Estimates 73

Detailed Estimates 73

Conducting a Detailed Estimate 73

Estimating Durations 79

Scheduling Issues 82

Factors Influencing Choice of Activity Schedules 83

Weather and the Schedule 84

Uncertainty in Duration Estimates 85

Final Comments 88

Review Problems 88

CHAPTER 5 TIME IN CONTRACT PROVISIONS 90

Time Is of the Essence 91

Requirements for Project Coordination 91

Cooperation 92

Progress Schedule 92

Ownership of Float 98

Notice to Proceed 100

Time of Completion 101

Units of Time:Working Days or Calendar Days 102

Liquidated Damages—Damages for Late Completion 105

Weather 106

Use of Completed Portions of the Work 106

Substantial Completion 107

Notice of Delays 108

Avoidable Delays 108

Unavoidable Delays 109

Extension of Time(Avoidable Delays) 109

Extension of Time(Unavoidable Delays) 109

Submittals 111

Progress Payments 112

Payment for Materials 114

Final Payment 114

Suspension 114

Termination by Contractor 115

Final Comments 116

Review Questions 116

CHAPTER 6 RESOURCE ALLOCATION AND RESOURCE LEVELING 117

The Management of Resources 117

When Resources Are Limited(Resource Allocation) 118

The Manual Solution for Resource Allocation 120

The Brooks Method of Resource Allocation 129

When Project Duration Is Fixed(Resource Leveling) 136

The Manual Solution for Resource Leveling 138

The Sports Facility Project 146

Final Comments 147

Review Problems 149

CHAPTER 7 MONEY AND NETWORK SCHEDULES 164

Cash Flow 165

The Time Value of Money 165

Interest Rates 165

Contractor Cash Disbursements 166

Contract Provisions That Impact Cash Flow 168

Owner Policies and Practices That Impact Cash Flow 170

The Cash-Flow Analysis 170

The Sports Facility Project 172

The Present Worth of Cash Flow 172

The Value of Cash-Flow Analysis 173

Time-Cost Trade-Offs 176

Direct Costs 177

Indirect Job Costs(Job Overhead) 177

Overhead(Company Overhead) 177

Profit 177

Four Different Solutions for Each Network 181

Logically Reducing Project Duration 182

Final Comments 193

Review Problems 194

CHAPTER 8 PROJECT MONITORING AND CONTROL 199

Construction Time 199

Effective Scheduling 201

Monitoring Project Status 202

Difficulties in Assessing Progress 206

Updating the Schedule 207

Controlling the Project 208

The Sports Facility Project 210

As-Built Schedules 211

Final Comments 214

Review Questions 214

CHAPTER 9 COMPUTER SCHEDULING 216

Computer Scheduling Terms 218

Scheduling Software 220

Primavera(P3？) 221

Sure Trak Project Manager 221

Microsoft Project 222

Web-Based Programs 222

Creating a Schedule 222

Updating a Schedule 226

Presenting a Schedule 226

Useful Software Features 228

Sorting and Filtering 228

Global Editing 229

Cash-Flow Analysis 229

Resource Leveling 229

Linking to Other Project Management Software 229

Final Comments 231

Review Questions 231

CHAPTER 10 EARNED VALUE:A MEANS FOR INTEGRATING COSTS AND SCHEDULE 232

The Earned Value Concept 233

Difficulties in Integrating Cost and Schedule Systems 238

Final Comments 241

Review Questions and Problems 242

CHAPTER 11 THE IMPACT OF SCHEDULING DECISIONS ON PRODUCTIVITY 246

Working Overtime 246

Increasing the Workforce(Crowding) 249

Increasing the Number of Starting Points 251

Identifying the Causes of Delays 253

Interruption of Work on Multiple Units(Impact of Lost Learning) 254

Learning Applied to Individual Units 257

Learning Applied to Cumulative Average Units 260

What Happens When Work Is Interrupted? 262

Other Sources of Lost Productivity 265

Final Comments 266

Review Problems 266

CHAPTER 12 CPM IN DISPUTE RESOLUTION AND LITIGATION 270

Going to Court 270

Types of Schedules 277

Impact of Changes 278

Impact of Delays 279

Final Comments 280

Review Questions 280

CHAPTER 13 SHORT-INTERVAL SCHEDULES 281

Short-Interval Schedules in the Literature 283

How Contractors Use Short-Interval Schedules 283

Other Short-Interval Schedules 288

Final Comments 296

Review Questions 296

CHAPTER 14 LINEAR SCHEDULING 297

What Is Linear Scheduling? 300

Example 1:Project to Replace a State Park Walkway 304

Production Rate Diagrams 304

Buffers 306

Generating the Linear Schedule 306

Example 2:Project to Construct 500 Tract Housing Units 308

Final Comments 312

Review Questions 312

CHAPTER 15 PERT:PROGRAM EVALUATION AND REVIEW TECHNIQUE 313

Uncertainty in Activity Duration Estimates 313

Uncertainty in the Duration Estimates of an Activity Chain 318

Uncertainty in the Duration Estimates of Projects 320

Monte Carlo Simulation 321

Final Comments 323

Review Problems 323

CHAPTER 16 ARROW DIAGRAMS 326

Activity Relationships 327

The i-j Notation of Activities 330

Dummies 330

Performing Time Calculations with Arrow Diagrams 336

Float Values 343

Understanding Free Float and Total Float 349

Computations for Different Activity Relationships 352

Final Comments 354

Review Problems 355

REFERENCES 365

ADDITIONAL REFERENCES 367

INDEX 371