Nanayakkara, K.I.U. orcid.org/0000-0003-2630-7724, Liew, A. and Gilbert, M. orcid.org/0000-0003-4633-2839 (2023) Application of thrust layout optimization to masonry structures. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 479 (2273). ISSN 1364-5021
Abstract
A new automated analysis procedure designed to overcome limitations of the traditional thrust line analysis method for masonry gravity structures is presented. The procedure, termed thrust layout optimization (TLO), is capable of automatically identifying admissible thrust lines in masonry gravity structures comprising general arrangements of masonry blocks. The procedure employs a modified truss layout optimization with transmissible loads formulation, which means that an initial thrust line layout does not need to be specified in advance. Highly visual output is generated, allowing areas where tensile strength has been implicitly assumed to be clearly identified, which is beyond the scope of traditional thrust line analysis. Also, sliding failures can be modelled without difficulty. Finally, examples are used to demonstrate the efficacy of the TLO procedure; these show that thrust line bifurcations can be automatically identified in problems involving openings, and that there is no need to estimate the ineffective area in buttress wall problems, both issues for the traditional thrust line analysis method.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
Keywords: | limit analysis; thrust line; optimization; masonry |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 22 May 2023 14:15 |
Last Modified: | 22 May 2023 14:15 |
Published Version: | http://dx.doi.org/10.1098/rspa.2023.0053 |
Status: | Published |
Publisher: | The Royal Society |
Refereed: | Yes |
Identification Number: | 10.1098/rspa.2023.0053 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:199419 |