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Cyclic Shear Tests on Key connection joints of Modularized Constructions

Journal of Harbin Institute of Technology(New Series) 2022年第3期29卷 13-20页

作者： Deshen Chen Xiaofei Jin Huajie Wang Hongliang Qian Deci Chang Feng Fan Department of Civil Engineering Harbin Institute of Technology at WeihaiWeihai 264209ShandongChina Tianyuan Construction Group Limited Company Linyi 276002ShandongChina China Construction First Group Corporation Limited Beijing 100161China School of Civil Engineering Harbin Institute of TechnologyHarbin 150096China

Modularized construction is a new type of prefabricated building system with green environmental protection and excellent performance. There are few studies on the seismic performance of its key connection joint. This paper presents a new type of assembled connection joint for the high-rise modularized construction. Cyclic shear tests of full-scale joints were carried out, and the key indexes of their seismic performances including the hysteretic performance, ductility, and energy dissipation capacity were analyzed and obtained. The results show that the hysteresis loops of longitudinal and lateral cyclic shear tests were both plump in shapes. The ductility coefficients were 4.54 and 4.98, and the energy dissipation coefficients were 1.83 and 1.43, respectively. The test joint had good ductility and energy dissipation capacity. The positions of yield failure of specimens were mainly concentrated in the connection areas between the column and short beam or end-plate. The research can provide the technical reference for the seismic design and engineering application of related modularized constructions.

关键词： modularized construction assembled connection joint cyclic shear test seismic performance

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