An analytical model to determine the ultimate load on masonry arch bridges. |
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Authors: | Amaryllis Audenaert Herbert Peremans Genserik Reniers |
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Affiliation: | (1) Department of Environment, Technology and Technology Management, University Antwerp, Prinsstraat 13, 2000 Antwerpen, Belgium |
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Abstract: | This paper proposes an analytical elasto–plastic model to describe the behavior of arches. The modeling is carried out using
the equations of (i) horizontal equilibrium, (ii) vertical equilibrium and (iii) equilibrium of moments. The latter equations
of equilibrium are ordinary differential equations which can easily be solved by adding boundary conditions, imposing restrictions
on the horizontal and vertical movement and on the rotation in the abutments of the arch. For masonry arches, including material
properties allowing the occurrence of cracks and the subsequent formation of hinges is required. The latter theory has been
implemented in a computer program (Matlab), offering numerical simulations. The software was used to illustrate two case-studies,
i.e., the assessment of an arch loaded with a vertical point load and one with a horizontal point load. |
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Keywords: | Collapse load Masonry arches Numerical simulation Ordinary differential equations |
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