Page 8 - Bridge and Highway Structure Rehabilitation and Repair

CONTENTS vii

SECTION 2 STRENGTHENING AND REPAIR WORK 133

Chapter 4 An Analytical Approach to Fracture and Failure 133
4.1 THEORETICAL CONCEPTS USED IN DEVELOPING COMPUTER SOFTWARE - 133

4.2 STRESS ANALYSIS - 135
4.3 REVIEW OF ELASTIC ANALYSIS - 137

4.4 ANALYSIS OF SLAB BEAM BRIDGES - 138
4.5 METHODS OF ANALYSIS OF THE SUPERSTRUCTURE - 140

4.6 EFFECT OF BOUNDARY CONDITIONS ON BRIDGE BEHAVIOR - 143
4.7 FULL COMPOSITE (ARCHING AND DOME) ACTION IN SLAB AND BEAMS - 146
4.8 NUMERICAL AND COMPUTATIONAL MODELS - 151

4.9 ANALYSIS OF APPROACH SLAB RESTING ON GRADE - 152
4.10 NONLINEAR ANALYSIS IN STEEL AND CONCRETE - 159

4.11 SINGLE SPAN LIVE LOAD ANALYSIS - 161
4.12 SELECTION OF STEEL GIRDERS - 162

4.13 REVIEW OF COMMON FAILURE THEORIES - 169
4.14 PLASTIC BEHAVIOR OF STEEL SECTIONS - 172

4.15 PLASTIC BEHAVIOR OF STEEL NON-COMPOSITE SECTION - 173
4.16 PLASTIC BEHAVIOR OF COMPOSITE SECTIONS - 174
4.17 SHEAR DESIGN FOR REINFORCED CONCRETE AND PRESTRESSED BEAMS - 180

BIBLIOGRAPHY - 182

Chapter 5 Load and Resistance Factor Rating and Redesign 185

5.1 RATING AND REDESIGN METHODS - 185
5.2 UTILIZING ULTIMATE LOAD BEHAVIOR OF MATERIALS - 190

5.3 LRFD SERVICE LOAD REQUIREMENTS - 194
5.4 FATIGUE AND FRACTURE - 204
5.5 SELECTION OF TRUCK LIVE LOADS - 209

5.6 DETAILED AASHTO LOAD COMBINATIONS FOR RATING AND DESIGN - 216
5.7 CONSTRUCTION LOADS AND LOAD COMBINATIONS - 223

5.8 LRFD LOAD COMBINATIONS FOR STRENGTH, SERVICEABILITY, AND EXTREME
CONDITIONS - 226

5.9 LRFD T-BEAM BRIDGE DESIGN - 228
5.10 SOFTWARE FOR SUPERSTRUCTURE - 232