CONTENTS
Foreword to the First Edition vii
Preface to the Fifth Edition ix
Preface to the First Edition xi
1. Introduction 1
Definition-Components of a bridge-Classification-Importance of bridges-Historical development-Case studies-Standard specifications.
2. Investigation for Bridges 10
Need for investigation-Selection of bridge site-Preliminary data to be collected¬ Preliminary drawings-Determination of design discharge-Linear waterway¬ Economical span-Location of piers and abutments-Vertical clearance above HFL¬ Subsoil exploration-Scour depth-Traffic projection-Investigation report-Choice of bridge type-Importance of proper investigation.
3. Standard Specifications for Road Bridges 30
General-Indian roads congress bridge code-Width of carriageway-Clearances¬
Loads to be considered-Dead load-IRC standard live loads-Impact effect-Review of IRC loadings-Application of live loads on deck slabs-Wind load-Longitudinal forces -Centrifugal forces-Horizontal forces due to water currents-Buoyancy effect¬ Earth pressure-Temperature effects-Deformation stresses-Secondary stresses¬ Erection stresses-Seismic force-Recent developments in seismic design practice.
4. Standards for Railway Bridges 53
General-Loads to be considered-Dead load-Live load-Dynamic effect-Forces due to curvature and eccentricity of track-Temperature effect-Frictional resistance of expansion bearings-Longitudinal forces-Racking forces-Forces on parapets¬ Wind pressure effect-Forces due to earthquake-Erection forces-Earth pressure on abutments.
5. General Design Considerations 65
General-Structural concrete-Concrete mix design-Reinforcement-Elastic design coefficients-Curtailment of bars-Bond, anchorage and splice-Shear in reinforced concrete beams and slabs-Effective flange width of T-beams and L-beams-Minimum reinforcement in slabs and beams-Concreting operations- Prestressed concrete¬ Notation for detailing concrete bridges-Steel construction-Traffic aspects of highway bridges-Aesthetics of bridge design-Relative costs of bridge components-Limit states method of design.
6. Culverts 99
General-Reinforced concrete slab culvert-Example for R.C. slab culvert-Author's charts for design of deck slab of slab bridges-Skew slab culvert-Pipe culvert¬ Reinforced concrete box culverts-Submersible bridges.
7. Reinforced Concrete Bridges 131
General-T-beam bridges-Illustrative example of T-beam bridge-Hollow girder bridges-Balanced cantilever bridges-Continuous girder bridges-Rigid frame bridges
-Arch bridges-Bow string girder bridge-Example of bow string girder bridge
8. Prestressed Concrete Bridges 175
Types of prestressed concrete bridges-Types of prestressing-Pretensioning-Post ¬ tensioning-Pretensioned prestressed concrete bridges-Post-tensioned prestressed concrete bridges-Illustrative example of design-Example of composite prestressed concrete superstructure-Erection of precast girders-Continuous construction¬ Bonding of tendons-Precautions to be observed by the prestressed concrete bridge engineer-Recent trends in design.
9. Steel Bridges 230
General-Railway culvert with steel beams-Plate girder bridges-Box girder bridges
-Truss bridges-Arch bridges-Cable stayed bridges-Cantilever bridges¬ Suspension bridges.
10. Masonry and Composite Bridges 255
Masonry arches-Analysis of arches-Composite bridges-Analysis of composite section-Shear connectors-Design of composite beams.
11. Temporary and Movable Bridges 266
Temporary bridges-Timber bridges-Temporary causeways-Military bridges¬ Floating bridges-Pontoon bridges-Movable bridges.
12. Substructure
Definition-Pier and abutment caps-Materials for piers and abutments-Piers --Forces due to wave action and collision-Example of design of pier-Abutments-Example of design of abutment-Backfill behind abutment.
13. Foundations 295
General-Scour at abutments and piers-Grip length-Types of foundations-Shallow
Foundations -Pile foundations-Well foundations-Pneumatic caissons .
14. Bearings, Joints and Appurtenances 318
Importance of bearings-Bearings for slab bridges-Bearings for girder bridges¬ Expansion bearings-Fixed bearings-Elastomeric bearings- Elastomeric pot bearings-Bearings for skew bridges-Joints-Expansion joints-Appurtenances.:_ Handrails-Footpaths on bridges-Drainage arrangements Wearing course¬ Approach slab- River training works.
15. Construction and Maintenance 352
Construction method affects total cost-Quality assurance for bridge projects-Short span bridges-Steel bridges-Long span concrete bridges-Formwork and falsework for concrete bridges-Construction management-Numbering of bridges-Bridge management system-Urban flyovers and elevated roads-Lessons from bridge failures.
Appendices .
A - Effect of concentrated loads on deck slabs 379
B - Load distribution methods for concrete bridges 391
C - Statistics of record bridges 414
D - Miscellaneous data 420
E - Review questions 425
Index 435