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http://dx.doi.org/10.12989/scs.2020.37.3.341

Experimental study on component performance in steel plate shear wall with self-centering braces  

Liu, Jia-Lin (School of Civil Engineering, Beijing Jiaotong University)
Xu, Long-He (School of Civil Engineering, Beijing Jiaotong University)
Li, Zhong-Xian (Key Laboratory of Coast Civil Structure Safety of China Ministry of Education, Tianjin University)
Publication Information
Steel and Composite Structures / v.37, no.3, 2020 , pp. 341-351 More about this Journal
Abstract
Steel plate shear wall with self-centering energy dissipation braces (SPSW-SCEDB) is a lateral force-resisting system that exhibits flag-shaped hysteretic responses, which consists of two pre-pressed spring self-centering energy dissipation (PS-SCED) braces and a wall plate connected to horizontal boundary elements only. The present study conducted a series of cyclic tests to study the hysteretic performances of braces in SPSW-SCEDB and the effects of braces on the overall hysteretic characteristics of this system. The SPSW-SCEDB with PS-SCED braces only exhibits excellent self-centering capability and the energy loss caused by the large inclination angle of PS-SCED braces can be compensated by appropriately increasing the friction force. Under the combined effect of the two components, the SPSW-SCEDB exhibits a flag-shaped hysteretic response with large lateral resistance, good energy dissipation and self-centering capabilities. In addition, the wall plate is the primary energy dissipation component and the PS-SCED braces provide supplementary energy dissipation for system. The PS-SCED braces can provide up to 90% self-centering capability for the SPSW-SCEDB system. The compressive bearing capacity of the wall plate should be smaller than the horizontal remaining restoring force of the braces to achieve better self-centering effect of the system.
Keywords
self-centering brace; steel plate shear wall; cyclic behavior; cyclic loading test; residual drift;
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