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- Title
A mechanism-based assessment framework for masonry arch bridges under scour-induced support rotation.
- Authors
George, Jofin; Menon, Arun
- Abstract
Increase in the frequency of flash floods owed to climate change, excessive sand mining, and urbanisation of watersheds has accelerated the need to quantify the structural effect of scour-induced structural damages in masonry arch bridges. The structural effects of scour-induced rotation are unaddressed in literature. In this context, a mechanism-based framework based on limit state principles is developed for masonry arch bridges subjected to scour-induced rotation. Critical collapse mechanisms caused by scour-induced rotation are identified, and analysis framework is developed using rigid-body kinematics. The spectrum of bridges under consideration is classified into subsets, and an assessment scheme is developed using fragility curves as a function of scouring location as well as bridge typology.
- Subjects
ARCH bridges; MASONRY; CLIMATE change; KINEMATICS; ROTATIONAL motion
- Publication
Advances in Structural Engineering, 2021, Vol 24, Issue 12, p2637
- ISSN
1369-4332
- Publication type
Article
- DOI
10.1177/13694332211009325