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Structural analysis of Monforte de Lemos masonry arch bridge considering the influence of the geometry of the arches and fill material on the collapse load estimation

DOI: 10.1016/j.conbuildmat.2016.05.107
Title: Structural analysis of Monforte de Lemos masonry arch bridge considering the influence of the geometry of the arches and fill material on the collapse load estimation
Journal Title: Construction and Building Materials
Volume: 120
Publication Date: 1 September 2016
Start Page: 630
End Page: 642
Published online: online 2 June 2016
ISSN: 0950-0618
Author: B. Condeab, L. Díaz-Vilariñob, S. Lagüelab, P. Ariasb
Affiliations:

  • a Department of Material Engineering, Applied Mechanics and Construction, School of Industrial Engineering, University of Vigo, Vigo, Spain

  • b Applied Geotechnologies Research Group, University of Vigo, Vigo, Spain
  • Abstract: paper the structural assessment of an in-service mediaeval masonry arch bridge is presented. The geometry used to perform the structural computations is based on a precise terrestrial laser scanning survey. Considering these real data, the influence of geometry on the collapse load estimation of the four masonry arches comprising the bridge is addressed. With this purpose, several assumptions regarding different geometric representations are developed and examined on the basis of both rigid block limit analysis and nonlinear finite element models. The impact of precise and simplified geometric representations for both approaches is analyzed and discussed. In addition, other relevant features such as geometric nonlinear effects are also investigated. Finally, the influence of explicitly consider the contribution of the fill material in the structural analysis procedure is assessed. Nonlinear finite element models including arch-fill interaction effects and limit analysis models are used to that aim.
    Accepted: 13 May 2016
    Received: 21 October 2015
    Revised: 10 May 2016
    Keywords: Masonry arch bridges; Geomatic techniques; Limit analysis; Nonlinear finite element analysis; Geometry; Arch-fill interaction
    Corresponding information:
    Email: bconde@uvigo.es

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