Contents
SUMMARY 1-2
1. INTRODUCTION, APPROACH & METHODOLOGY 3-5
1.1. Introduction and Background 3
1.2. Objective 4
1.3. Approach 4
1.4. Steel Intensive Construction for Indian Bridges and Flyovers 4
2. CONCEPTS OF LIFE CYCLE COST 6-14
2.1 Introduction to Life Cycle Cost 6
2.2 Methodology of Life Cycle Cost 6
2.3 Some Essential Terms and Concepts on LCC 7
2.4 Some Important Formulae for Present Value Calculation 12
3. LCC RELATED CODES AND STANDARDS 15-17
3.1 Some LCC Related Standards 15
3.2 Brief review ofiRC SP 30 w.r.t LCC 15
3.3 Brief review on Draft Approach Document on WLC 17
4. THE CURRENT STUDY 18-21
4.1 The Study 18
4.2 The Project Brief 18
4.3 Assignment Sketch 21
5. DESIGN APPROACH AND DESIGN PROCESS 22-40
5.1 Design Arrangement 22
5.2 Materials 23
5.3 Loading 23
5.4 Foundation System 24
5.5 Reference Codes and Standards 24
5.6 Design Process 24
5.7 Schematic Arrangements 25
6 ESTIMA TION OF INITIAL COST 41-94
6.1 General Basis of Cost Assessment 41
6.2 Break-up of Modified Rates of Calcutta Flyover 43
6.3 Details of Rates Used for the Murribai Flyover 47
6.4 Break-up of Cost for Common Approach Ramp 49
6.5 Simply Supported Span - RCC Option Cost for Calcutta 50
6.6 Continuous Span - RCC Option Cost for Calcutta 53
6.7 Simply Supported Span -PSC Option Cost for Calcutta 56
6.8 Continuous Span -PSC Option Cost for Calcutta 59
6.9 Simply Supported Span -RCC Option Cost for Mumbai 62
6.10 Continuous Span -RCC Option Cost for Mumbai 65
6.11 Simply Supported Span -PSC Option Cost for Mumbai 68
6.12 Continuous Span -PSC Option Cost for Muinbai 71
6.13 Simply Supported (25m span) -Steel Option Cost for Mumbai 74
6.14 Simply Supported (20m span) -Steel Option Cost for Mumbai 76
6.15 Continuous (25m span) -Steel Option Cost for Mumbai 78
6.16 Continuous (20m span) -Steel Option Cost for Mumbai 80
6.17 Simply Supported (25 m span) -Steel Option Cost for Calcutta 82
6.18 Simply Supported (20m span) -Steel Option Cost for Calcutta 84
6.19 Continuous (25 m span) -Steel Option Cost for Calcutta 86
6.20 Continuous (20 m span) -Steel Option Cost for Calcutta 88
6.21 Summary of Direct Cost Tables 90
6.22 Selection and Comparison of Most Competitive Options 92
7. ESTIMATION OF CONSTRUCTION TIME 95-107
7.1 Considerations for Time Estimate 95
7.2 Estimation of Construction Time 95
7.3 Implementation Schedules 101
7.4 Construction Equipment Considered 106
8 INTEREST, INFLATION & DISCOUNT RATES 108-112
8.1 Introduction 108
8.2 Assessment of Interest Rate Value 108
8.3 Assessment of Annual Inflation Rate Value 109
8.4 Assessment of Discount Rate Value 110
8.5 Discount Factors 112
9. ASSESSMENT OF TIME COST 113-114
9.1 Assessment of Cost 113
9.2 Observations 114
10. LIFE CYCLE COST HEADS 115-116
10.1 Introduction . 115
10.2 Base line 115
10.3 Lifespan! study period 115
11. ROAD USER COST 117-120
11.1 Road User Cost 117
11.2 Importance 117
11.3 Estimation 118
11.4 Summary of Const. Cost, Time Cost and Road User Cost 120
12. ROUTINE INSPECTION & PERIODIC MAINTENANCE COST 121-124
12.1 Routine Inspection Cost 121
12.2 Periodic Maintenance Cost • 122
13. MAJOR REPAIR COST & END USE VALUE 125-126
13.1 Repair/Rehabilitation Cost 125
13.2 End Use Value 126
14. .LIFE CYCLE COST SUMMARY TABLES 127-136
14.1 LCC Summary Table for Calcutta Flyover 127
14.2 LCC Summary Table for Mumbai Flyover 131
14.3 Observations 134
Annexure I 137
Annexure II 138