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M.A. Bradford and H.Y. Ban

Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, Australia

doi:10.4203/ccp.104.72

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M.A. Bradford, H.Y. Ban, "Stability of Tapered Half-Through Girder High Strength Steel Railway Bridges", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 72, 2014. doi:10.4203/ccp.104.72

Keywords: buckling, half-through girder, high-strength steel, residual stresses, tapered beam.

Summary

This paper presents a numerical analysis of half-through girder bridges made from high strength steel (HSS). These bridges are attractive because modern fabrication techniques allow for HSS plate girders which are tapered to be welded from flat plates, thereby optimising material usage. HSS has a favourable strength to weight ratio when compared with mild steel, and so less material is needed by comparison. Design rules for tapered HSS beams do not appear in current standards, because the buckling curve for a HSS flexural member needs to incorporate the interaction between elastic buckling and yielding, with attention to the specific residual stresses inherent in the fabrication of HSS girders. Based on the numerical results, design guidance for tapered half-through girders is discussed.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 72 Stability of Tapered Half-Through Girder High Strength Steel Railway Bridges M.A. Bradford and H.Y. Ban Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, Australia doi:10.4203/ccp.104.72 purchase the full-text of this paper Full Bibliographic Reference for this paper M.A. Bradford, H.Y. Ban, "Stability of Tapered Half-Through Girder High Strength Steel Railway Bridges", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 72, 2014. doi:10.4203/ccp.104.72 Keywords: buckling, half-through girder, high-strength steel, residual stresses, tapered beam. Summary This paper presents a numerical analysis of half-through girder bridges made from high strength steel (HSS). These bridges are attractive because modern fabrication techniques allow for HSS plate girders which are tapered to be welded from flat plates, thereby optimising material usage. HSS has a favourable strength to weight ratio when compared with mild steel, and so less material is needed by comparison. Design rules for tapered HSS beams do not appear in current standards, because the buckling curve for a HSS flexural member needs to incorporate the interaction between elastic buckling and yielding, with attention to the specific residual stresses inherent in the fabrication of HSS girders. Based on the numerical results, design guidance for tapered half-through girders is discussed. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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