• Document: Design of Steel-Concrete Composite Bridges
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Design of Steel-Concrete Composite Bridges to Eurocodes Ioannis Vayas and Aristidis Iliopoulos CRC Press Taylor & Francis Croup Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Croup, an Informs business A SPON PRESS BOOK Contents Foreword xvii Preface xix Acknowledgments xxi Authors xxiii 1 Introduction 1 1.1 General 1 1.2 List of symbols 2 2 Types of steel-concrete composite bridges 13 2.1 General 13 2.2 Composite bridges: The concept 14 2.3 Highway bridges 16 2.3.1 Plate-girder bridges with in situ concrete deck slab 16 2.3.2 Plate-girder bridges with semiprecast concrete deck slab 18 2.3.3 Plate-girder bridges with concrete deck slab fully precast 22 2.3.4 Plate-girder bridges with composite slab deck with profile steel sheeting 23 2.3.5 Plate-girder bridges with partially prefabricated composite beams 26 2.3.6 Double-girder bridges 27 2.3.6.1 Ladder deck bridges 29 2.3.7 Bridges with closed box girders 31 2.3.8 Open-box bridges 34 2.3.9 Arch bridges 40 2.3.10 Cable-stayed bridges 43 2.3.11 Suspension bridges 46 2.4 Railway bridges 47 2.4.1 General 47 2.4.2 Half-through bridges 48 2.4.3 Plate-girder bridges 49 2.4.4 Box-girder bridges SO 2.4.5 Filler-beam bridges 51 2.4.6 Pipe-girder bridges 51 vii viii Contents 2.4.7 Arch bridges 51 2.4.8 Lattice girder bridges 52 2.5 Construction forms 52 2.5.1 General 52 2.5.2 Simply supported bridges 53 2.5.3 Continuous bridges 53 2.5.4 Frame bridges 54 2.5.5 Integral and semi-integral bridges 55 2.6 Erection methods 57 2.6.1 General 57 2.6.2 Lifting by cranes 57 2.6.3 Launching 57 2.6.4 Shifting 59 2.6.5 Hoisting 59 2.6.6 Segmental construction 59 2.7 Concreting sequence 59 2.8 Execution 61 2.9 Innovation in composite bridge engineering 62 References 63 3 Design codes 67 3.1 Eurocodes 67 3.1.1 General 67 3.1.2 EN 1990: Basis of structural design 69 3.1.3 EN 1991: Actions on structures 70 3.1.4 EN 1998: Design of structures for earthquake resistance 70 3.1.5 EN 1994: Design of composite steel and concrete structures 70 3.1.6 EN 1993: Design of steel structures 70 3.1.7 EN 1992: Design of concrete structures 71 3.2 National annexes 71 References 71 4 Actions 73 4.1 Classification of actions 73 4.1.1 Permanent actions 73 4.1.2 Variable actions 73 4.1.3 Accidental actions 73 4.1.4 Seismic actions 74 4.1.5 Specific permanent actions and effects in composite bridges 74 4.1.6 Creep and shrinkage 75 4.1.7 Actions during construction 75 4.2 Traffic loads on road bridges 75 4.2.1 Division of the carriageway into notional lanes 75 4.2.2 Vertical loads on the carriageway 76 4.2.2.1 Load model 1 (LM1) 76 4.2.2.2 Load model 2 (LM2) 78

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