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An Examination of Backing Effects on Ratings for Masonry Arch Bridges
Abstract:Many single or multispan arch bridges are strengthened with the addition of some kind of structural support between adjacent arches of multispan or beside the arch barrel of a single span to increase the strength of the overall structure. It was traditionally formed by either placing loose rubble masonry blocks between the arches and beside the arches or using mortar or concrete to construct a more substantial structural bond between the spans. On the other hand backing materials are present in some existing bridges. Existing arch assessment procedures generally ignore the effects of backing materials. In this paper an investigation of the effects of backing on ratings for masonry arch bridges is carried out. It is observed that increasing the overall lateral stability of the arch system through the inclusion of structural backing results in an enhanced failure load by reducing the likelihood of any tension occurring at the top of the arch.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1063128Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1817
 M.E. Rahman, "Load rating analyses of masonry arch bridges", MSc thesis, Dept. of Civil Eng., University College Dublin, Dublin, Ireland 2002.
 P.J. Fanning and T.E. Boothby, "Three dimensional modelling and full - scale testing of stone arch bridges", Computers and structures, Vol. 79, No 29-30, pp. 2645-2662. 2001.
 T.E, Boothby, "Load rating of masonry arch bridges", Journal of Bridge Engineering, ASCE, Vol. 6, No. 2, pp. 79-86. 2001.
 P. J. Fanning and T.E. Boothby, "Load rating of masonry arch bridgesrefinements", Journal of Bridge Engineering, ASCE, Vol. 9, No 3, pp 304-307. 2004.
 T.E. Boothby, D.E. Domalic and V.A. Dalal , "Service load response of masonry arch bridges", Journal of Structural Engineering, ASCE, Vol. 124, No 1, PP. 17-23. 1998.
 P. J. Fanning and T.E. Boothby, "A Comparative study of assessment methods for masonry arch bridges", Seminar: Masonry Arch Bridge Assessment, eds. A. Gonzalez & P. Finnegan, UCD, Dublin, The Institution of Structural Engineers (IRL), pp.14-24. 2002.