Table of Contents
Declaration i
Approval Certificate ii
Acknowledgement iii
Abstract iv
Table of Contents v
List of Figures vii
List of Tables viii
Abbreviations ix
INTRODUCTION 1
1.1 General Introduction 1
1.2 Bridge Super-structure 2
1.2.1 Solid Slab 2
1.2.2 Voided Slab 3
1.2.3 Box Girder 3
1.2.4 T beam / I Beam Deck Slab 4
1.3 Project statement 5
1.4 Objectives 6
1.5 Scope of Work 7
LITERATURE REVIEW 9
DETAILED METHODOLOGY 15
3.1 General 15
3.2 Limit State Design Method (LSM) 16
3.2.1 Ultimate limit state of Flexure 16
3.2.2 Ultimate limit state of Shear 18
3.2.3 Stress Limitation 21
3.2.4 Limit state of Cracking 22
3.2.5 Design of prestressed concrete 23
3.3 Prestressed concrete 24
3.3.1 Prestress losses 25
ANALYSIS AND DESIGN PROCEDURE 29
4.1 General 29
4.2 Load calculation 29
4.2.1 Dead Load 29
4.2.2 Live Load 30
4.3 Analysis and design of girder 32
4.3.1 Prestressing design of girder 33
4.3.2 Design for ultimate limit state of shear 37
4.3.3 Design for interface shear stress 39
4.3.4 End-block Design 40
4.4 Analysis and design of deck slab 41
4.5 Analysis and design of diaphragm 45
RESULTS AND OBSERVATIONS 49
5.1 General 49
5.2 Live load analysis 49
5.3 Prestress design 51
5.4 Diaphragm design 53
5.5 Bearing & Sub-structure Arrangement 57
5.6 Design Summary 58
CONCLUSION 61
REFERENCES 63
ANNEXURE A 65