Strength and drift capacity of squat recycled concrete shear walls under cyclic loading

Peng, Youkai and Wu, Hui and Zhuge, Yan (2015) Strength and drift capacity of squat recycled concrete shear walls under cyclic loading. Engineering Structures, 100. pp. 356-368. ISSN 0141-0296

Abstract

In order to provide an improved understanding of the behavior of squat reinforced concrete shear walls and promote the application of recycled concrete in structures, six rectangular squat recycled concrete wall specimens were tested under in-plane cyclic loading. The specimens were designed based on Chinese code for design of concrete structures GB 50010-2010, which specified minimum horizontal and vertical reinforcement ratios of 0.25% in web, and vertical reinforcement ratio of 1.0% in boundary element. The main parameters investigated are axial load level and the amount of vertical and horizontal web reinforcement. This research presents the experimental results which include test observation, lateral load versus drift response, and measured strain distribution of vertical and horizontal reinforcement, measured strength and drift capacity of wall specimens. It was found that increasing of axial load level resulted in a higher peak load but less ultimate drift capacity, and increasing of horizontal web reinforcement had small effect on peak load but could improve the drift capacity. In this study, a mixed flexure and diagonal compression mechanism was proposed to reflect the lateral load resisting behavior of squat walls. Particularly, a simplified analytical method was developed to predict the peak loads of squat walls failed in flexure or a mixed flexural-diagonal compression mode, which was proved to accurately predict the peak loads of specimens.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 04 May 2016 04:41
Last Modified: 22 Jul 2016 05:53
Uncontrolled Keywords: shear wall; squat wall; recycled concrete; cyclic loading; drift capacity; strength
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials
B Economic Development > 87 Construction > 8798 Environmentally Sustainable Construction > 879804 Management of Solid Waste from Construction Activities
Identification Number or DOI: 10.1016/j.engstruct.2015.06.025
URI: http://eprints.usq.edu.au/id/eprint/27564

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