000			03947nam a2200145Ia 4500
020			_a075065077X
082			_a624.28 _bRYA
100			_aRyall, M. J.
245			_aBridge management.
260			_aNew Delhi _bButterworth Heinemann Ltd. _c2
300			_ax,450p.
500			_aPreface ix Acknowledgements xi 1Bridge management systems 1 1.1Introduction 1 1.2Bridge management 3 1.3Basic management 4 1.4 Modern Bridge Management Systems (BMS) 6 1.5The system 13 1.6Some examples of BMS 13 1.7Engineering judgement 21 1.8Funding 22 1.9Conclusions 23 References 24 Further reading 25 Appendix 1A 25 Appendix IB 26 2Inspection and condition rating 28 2.1 Introduction 28 2.2 Why inspect? 29 2.3 What to look for 32 2.4 Accessories . 49 2.5 Substructures 57 2.6 Foundations 58 2.7 Movable bridges 59 2.8 Inspection equipment 60 2.9 Planning and inspection 66 2.10Condition rating 69 2.11Concluding remarks 79 References 79 Further reading 81 Appendix 2 A 81 3Assessment and evaluation 85 3.1Introduction 85 3.2Basic consideration 86 3.3Structural safety 89 3.4Analysis methods 96 3.5Reliability concepts /o 102 3.6Arches 105 3.7Concluding remarks 112 References 112 Further reading 115 Appendix 3A 115 Appendix 3B 116 Appendix 3 C 118 4Non-destructive testing 119 4.1Introduction 119 4.2Concrete elements p 119 4.3Steel 144 4.4Masonry 151 4.5Concluding remarks 152 References 152 Further reading 153 5Load testing 154 5.1Introduction 154 5.2Load tests 154 5.3Conclusion 173 References 173 Further reading 175 Appendix 5A 176 6Repair 179 6.1Introduction 179 6.2Masonry 179 6.3Concrete 189 6.4Steel 196 6.5Wrought iron 199 6.6Cast iron 202 6.7Timber 204 6.8Graffiti 207 6.9Conclusions 210 References 210 Further reading 211 7Strengthening 212 7.1 Introduction 212 7.2 Steel plate bonding 212 7.3 Composite plate bonding 220 7.4 External post-tensioning 230 7.5 Arches 234 7.6 Increased composite action 242 7.7 Partial end restraint 250 7.8 Piers, abutments and foundations 252 7.9 Movable bridges 257 7.10Long span steel bridges 257 References 259 Further reading 259 Case studies 259 8Bridge modification 265 8.1Introduction 265 8.2Widening options 265 8.3Bridge options ' <270 8.4Methods of replacement and construction 282 8.5Enclosures 291 8.6Integral conversion of existing jointed bridges 299 8.7Shock Transmission Units 300 8.8Bearing replacement 305 8.9Concluding remarks 306 References 306 Case studies 308 9Whole-life costing and deterioration modelling 309 9.1 Introduction 309 9.2 The basic theory 310 9.3 Discount rate 311 9.4 Traffic disruption 313 9.5 Future developments 314 9.6 Maintenance strategy ' 319 9.7 Performance profiles 325 9.8 Whole life assessment 328 9.9 Design, Build, Finance and Operate (DBFO) 328 9.10Conclusions 329 References 329 Further reading 329 10Durability and protection 331 10.1 Introduction 331 10.2 Durability 331 lontents 10,3Drainage 333 10.4 Steel bridges 356 10.5 Design 357 10.6 Expansion joints and bearings 363 10.7 Construction 363 10.8 Integral bridges 364 10.9 Provision of continuity in precast beam construction 369 10.10 Pier protection 371 10.11The way ahead . 372 References 373 Further reading 377 11Stress management and monitoring 378 11.1 Introduction 378 11.2 In situ or residual stresses 378 11.3 Stress relief principle 379 11.4 Indirect stress management 379 11.5 Live load stresses 395 11.6 Monitoring. 398 11.7 Scour sensing 406 11.8 Load cells and bearings 408 11.9 Displacement transducers 408 11.10Traffic monitoring 408 11.11Concluding remarks 409 References 410 Further reading 412 12Risk and reliability 413 12.1Introduction 413 12.2Risk in theory and practice 413 12.3Health and safety 417 12.4Structural safety analysis 419 12.5Test loads 432 12.6The future 432 12.7In conclusion 434 References 434 Further reading ' 435 Appendix 12A 436 Index 441
890			_aIndia
999			_c3420 _d3420