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Effect of web openings on flexural behaviour of underground metro station RC beams under static and cyclic loading

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Liu, T, Chen, S, Feng, Z and Liu, H ORCID: 0000-0002-5437-4695 2020 , 'Effect of web openings on flexural behaviour of underground metro station RC beams under static and cyclic loading' , Advances in Civil Engineering, vol. 2020 , pp. 1-15 , doi: 10.1155/2020/1210485.

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Abstract

,is paper investigates the influence of multiple transverse web openings on the flexural behaviour of underground metro stationreinforced concrete (RC) beams. ,is problem is outlined with an actual underground engineering project, in which the webopening used in the RC beams violates the current specifications. A total of five beams with different numbers of web openings arefabricated and tested under static and cyclic loading conditions, thereby simulating actual operations in unfavourable conditions.,e results suggest that the existence of the openings decreases the loadbearing capacity, ductility, stiffness, and energy dissipationability of the RC beams. Moreover, the results show that the corners of the openings are the weakest parts of the beams. However,additional reinforcements around the openings can partially mitigate the impact of the openings on the loadbearing and seismicperformance of the RC beams. ,e laboratory experiments presented herein not only provide guidelines for the use of RC beamswith web openings in actual engineering projects, especially underground projects where RC beams with web openings haveseldom been investigated, but also shed light on improving the related design specifications.

Item Type: Article
Authors/Creators:Liu, T and Chen, S and Feng, Z and Liu, H
Keywords: metro station, RC beam, web opening, flexural behaviour
Journal or Publication Title: Advances in Civil Engineering
Publisher: Hindawi
ISSN: 1687-8086
DOI / ID Number: 10.1155/2020/1210485
Copyright Information:

Copyright © 2020 Ting-jin Liu et al. ,is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/

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