Journal ArticleDOI
Simplified Performance Assessment for Single-Span Masonry Arch Bridges under Live Load
Jofin George,Arun Menon +1 more
TLDR
In this paper, a quantitative, rapid screening assessment methodology for masonry arch bridges, with minimal input parameters, is proposed, which is validated using a mechanism-based analysis procedure.Abstract:
A quantitative, rapid screening assessment methodology for masonry arch bridges, with minimal input parameters, is proposed. The developed mechanism-based analysis procedure is validated a...read more
Citations
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A mechanism-based assessment framework for masonry arch bridges under scour-induced support rotation:
Jofin George,Arun Menon +1 more
TL;DR: In this paper, the authors quantify the structural effect of scour-induced flash floods due to climate change, excessive sand mining, and urbanization of watersheds, and find that the number of flash floods increases with climate change.
Journal ArticleDOI
Dynamic performance-based assessment for tied-arch bridges subjected to heavy multi-axial tractor-trailers
TL;DR: In this paper , a performance-based evaluation for tied-arch bridges subjected to heavy multi-axle vehicles, and a prediction function of the dynamic impact factor (DIF) was proposed considering the bridge frequency, vehicle speeds, and road quality level.
Journal ArticleDOI
Analytical fragility curves for displacement-based scour assessment of masonry arch bridges
Jofin George,Arun Menon +1 more
TL;DR: In this article , a generalised assessment procedure, primarily dependent on the geometry, is presented, which identifies bridge geometries susceptible to scouring through the quantification of available safety margin.
Journal ArticleDOI
Kinematic Approach for Scour Analysis of Masonry Arch Bridges
Jofin George,Arun Menon +1 more
TL;DR: In this paper , a comprehensive kinematic analysis procedure for masonry arch bridges susceptible to scouring is presented, where critical foundation movements initiated by scouring are identified as a function of bridge typology and scour location.
Journal ArticleDOI
Masonry Arch Bridges with Finite Compression Strength Subject to Horizontal Longitudinal Seismic Actions
TL;DR: In this paper , the behavior of a masonry arch bridge under longitudinal seismic actions is analyzed by using the mechanism method, and three hypotheses about the effects of the inertial actions of the backfill are considered, which correspond to three different real behaviours.
References
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Journal ArticleDOI
Computational framework for discontinuous modelling of masonry arch bridges
TL;DR: In this paper, an investigation into using continuum/discontinuum-based techniques to analyse backfilled masonry arch bridges is presented, where three different computational modelling tools, discontinuous deformation analysis (DDA), discrete element based analysis using particle flow code and the non-linear finite element analysis using diana have been utilised for this purpose and comparison are made with an experimental model developed at Edinburgh University.
Journal Article
The behaviour of multiring brickwork arch bridges
C Melbourne,M Gilbert +1 more
TL;DR: In this article, a series of tests carried out on multi-ring brickwork arch bridges tested in the laboratory showed that significant reductions in strength accompany ring separation, and that the collapse loads of bridges built with mortar bonded arch barrels were more difficult to quantify, because of the unpredictability of brittle fracture of the mortar bonding together the arch rings.
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Limit behavior of stone arch bridges
TL;DR: In this article, an iterative method to find the minimum thickness under dead loads and the collapse mechanism and load factor when acting also live loads is proposed, and the results of a comprehensive numerical investigation are shown, which can be easily used in the safety check of stone arches.
Journal ArticleDOI
Case study of the failure of a cross vault: Church of Holyrood abbey
TL;DR: In this article, a replica of the Holyrood Abbey in Edinburgh was built and tested initially under service loads and subsequently until collapse due to movement of the two front abutments.
Journal ArticleDOI
Safety Assessment of a Masonry Arch Bridge: Field Testing and Simulations
TL;DR: In this article, the safety of an in-service brick arch railway bridge is assessed through field testing and finite-element analysis, and the margin of safety with respect to cracking and stability failure is computed.