Bridge Design and Evaluation

Preface xi
1 Introduction 1
1.1 Bridge Engineering and Highway Bridge Network 1
1.2 Types of Highway Bridges 2
1.3 Bridge Construction and Its Relation to Design 7
1.4 AASHTO Specifications and Design and Evaluation Methods 9
1.5 Goals for Bridge Design and Evaluation 11
1.6 PreliminaryDesign versus Detailed Design 11
1.7 Organization of This Book 12
References 14
2 Requirements for Bridge Design and Evaluation 15
2.1 General Requirements 15
2.2 Limit States 16
2.3 Constructability 20
2.4 Safety 21
2.5 Serviceability 31
2.6 Inspectability 41
2.7 Economy 41
2.8 Aesthetics 42
2.9 Summary 44
References 45
Problems 45
3 Loads, Load Effects, and Load Combinations 47
3.1 Introduction 47
3.2 Permanent Loads 48
3.3 Transient Loads 63
3.4 Load Combinations 83
References 92
Problems 92
4 Superstructure Design 101
4.1 Introduction 101
4.2 Highway Bridge Superstructure Systems 103
4.3 Primary Components of Highway Bridge Superstructure 106
4.4 Deck Systems 110
4.5 Deck-Supporting Systems 121
4.6 Design of Reinforced Concrete Deck Slabs 135
4.7 Design of Steel I Beams 177
4.8 Design of Prestressed Concrete I Beams 247
References 300
Problems 300
5 Bearing Design 303
5.1 Introduction 303
5.2 Types of Bridge Bearing 304
5.3 Appropriate Selection of Bearings 313
5.4 Design of Elastomeric Bearings 314
References 333
Problems 333
6 Substructure Design 335
6.1 Introduction 335
6.2 Piers 340
6.3 Abutments 346
6.4 Foundations 349
6.5 Design of Piers 353
6.6 Design of Abutments 357
References 393
7 Highway Bridge Evaluation 395
7.1 Introduction 395
7.2 Inspection and Condition Rating 397
7.3 Load Rating 401
7.4 Fatigue Evaluation for Steel Components 416
References 419
Problems 419
Index 421
Problems 393