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Saturday, December 1, 2018

Design Guide for Composite Highway Bridges (Free PDF)

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File Size: 5.28 mb

Description
Composite construction, using a reinforced concrete slab on top of steel girders, is an economical and popular form of construction for highway bridges.
This book covers the design of continuous composite bridges, with both compact and non-compact sections, and simply supported composite bridges with the 'slab-on-beam' form of construction.
Part One provides advice on the general considerations for design, the initial design process, and the verification of structural adequacy in accordance with BS 5400. The determination of design forces throughout the slab is described, and key features relating to slab design are identified. Advice on structural detailing is also given.
Part Two provides worked examples for a four-span bridge, three-span bridge and for the deck slab of a simply supported bridge. Each example is presented as a series of calculation sheets, with accompanying commentary and advice given on facing pages.
Design Guide for Composite Highway Bridges is a compilation of guidance previously given in separate SCI publications. As such it will act as an authoritative guide for new designers and as a reference text for the bridge design office. 
 
Content:-
 ACKNOWLEDGEMENTS
1 INTRODUCTION
2 DESIGN CODES

2.1 BS 5400
2.2 Interrelation of Parts 3, 4 and 5 of BS 5400
2.3 Design Manual for Roads and Bridges
2.4 Specification for HighwayWorks
2.5 Requirements of Railtrack
2.6 European Standards
2.7 References to BS 4500 in this publication
3 CHARACTERISTIC FEATURES OF COMPOSITE BRIDGES
3.1 Beam and slab construction
3.2 Forms of slab construction
3.3 Shear connection
3.4 Substructures, expansion joints and integral bridges
3.5 Corrosion protection
4 INITIAL DESIGN
4.1 General
4.2 Loadings
4.3 Girder spacing and deck slab thickness
4.4 Construction depth
4.5 Initial selection of flange and web sizes
4.6 Choice of compact or non-compact sections
4.7 Availability of steel beams and plates
4.8 Economic and practical considerations
5 DETAILED DESIGN: MAIN BEAMS
5.1 Global analysis
5.2 Load effects and combinations
5.3 Design of beams
5.4 Beams without longitudinal stiffeners
5.5 Beams with longitudinal stiffeners
5.6 Load-carrying transverse beams
5.7 Fatigue considerations
5.8 Selection of steel subgrade
6 DETAILED DESIGN: BRACING, STIFFENERS AND SPLICES
6.1 Bracing
6.2 Bracing: restraints at supports
6.3 Bracing within the span
6.4 Web stiffeners
6.5 Connections and splices
6.6 Bearings
7 DETAILED DESIGN: DECK SLAB AND SHEAR CONNECTION
7.1 Load effects in deck slab
7.2 Local slab analysis
7.3 Slab design considerations
7.4 Ladder decks
7.5 Shear connection
8 FLOW DIAGRAMS
9 REFERENCES

APPENDIX A Guidance Notes
APPENDIX B Highways Authorities and Railtrack Documents
APPENDIX C A guide to quick initial selection of web and flange sizes
Worked Example Number 1
Worked Example Number 2
Worked Example Number 3
 
 
Author Details 
"David C.Iles", The Steel Construction Institute



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