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Lookup NU author(s): Dr Vasilis SarhosisORCiD
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Springer, 2020.
For re-use rights please refer to the publisher's terms and conditions.
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.
Author(s): Stockdale G, Sarhosis V, Milani G
Publication type: Article
Publication status: Published
Journal: Bulletin of Earthquake Engineering
Year: 2020
Volume: 18
Pages: 673–724
Print publication date: 01/01/2020
Online publication date: 23/02/2019
Acceptance date: 15/02/2019
Date deposited: 26/02/2019
ISSN (print): 1570-761X
ISSN (electronic): 1573-1456
Publisher: Springer
URL: https://doi.org/10.1007/s10518-019-00583-7
DOI: 10.1007/s10518-019-00583-7
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