Stockdale, GL, Sarhosis, V orcid.org/0000-0002-8604-8659 and Milani, G (2020) Seismic capacity and multi-mechanism analysis for dry-stack masonry arches subjected to hinge control. Bulletin of Earthquake Engineering, 18 (2). pp. 673-724. ISSN 1570-761X
Abstract
Masonry arches are vulnerable to seismic actions. Over the last few years, extensive research has been carried out to develop strategies and methods for their seismic assessment and strengthening. The application of constant horizontal accelerations to masonry arches is a well-known quasi-static method, which approximates dynamic loading effects and quantifies their stability, while tilting plane testing is a cheap and effective strategy for experimentation of arches made of dry-stack masonry. Also, the common strengthening techniques for masonry arches are mainly focusing on achieving full strength of the system rather than stability. Through experimentation of a dry-stack masonry arch it has been shown that the capacity of an arch can be increased, and the failure controlled by defining hinge positions through reinforcement. This paper utilizes experimentally obtained results to introduce: (1) static friction and resulting mechanisms; and (2) the post-minimum mechanism reinforcement requirements into the two-dimensional limit analysis-based kinematic collapse load calculator (KCLC) software designed for the static seismic analysis of dry-stack masonry arches. Computational results are validated against a series of experimental observations based on tilt plane tests and good agreement is obtained. Discrete element models to represent the masonry arch with different hinge configurations are also developed to establish a validation trifecta. The limiting mechanism to activate collapse of arches subjected to hinge control is investigated and insights into the optimal reinforcement to be installed in the arch are derived. It is envisaged that the current modelling approach can be used by engineers to understand stability under horizontal loads and develop strengthening criteria for masonry arches of their care.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019, Springer Nature B.V. This is an author produced version of a paper published in the Bulletin of Earthquake Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Masonry arch; Tilt test; KCLC; DEM; Admissible mechanism; Seismic capacity |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Apr 2019 13:19 |
Last Modified: | 23 Feb 2020 01:38 |
Status: | Published |
Publisher: | Springer |
Identification Number: | 10.1007/s10518-019-00583-7 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:144557 |