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Get Free AccessThe practicability of existing self-centering braces is largely limited by their small deformability and insufficient energy dissipation. This paper presents a new type of velocity-dependent self-centering brace called viscoelastic self-centering brace (VSCB), which employs viscoelastic dampers (VED) and SMA cables as the kernel elements. The SMA cables can offer large recoverable deformation, and the viscoelastic dampers, which are velocity-dependent, provide considerable energy dissipation under high-frequency loading excitations but tend to have less detrimental influence on the self-centering capability during the shakedown of the system. A comprehensive system-level analysis on three carefully designed prototype buildings was conducted, including a buckling restrained braced frame (BRBF), a pure self-centering braced frame (SCBF) and a viscoelastic self-centering braced frame (VSCBF). The results show that compared with the SCBF, the VSCBF maintains the benefit of small residual inter-story drift (RID) and in addition, exhibits obviously reduced peak inter-story drift (PID) and peak floor acceleration (PFA).
Dawei Zhang, H Deng, Xiong Hu, Zexiang Li, K Cui, Cong Wang, Sufen Chen, Zheng Tan, Zhang We, Xiaobo Song, Bao Meng, C Li, S Duan, Binsong Jiang, Lu Jiang, S Sang, Yulong Li, Yangjie Wu, Wei Zhong, Junhong Hao, Jianguo Ding, Zeyu Zhang, A Machowski, Mariusz Maślak, M Pazdanowski, Angle Steel, Xue Li, Fang Zhu, Jianqiao Ye, Dan Sun, Wei Yao, Xingliang Xu, Xiao‐Ling Zhao, Shen Yan, Ye Liu, Zhang We, Hong Kong Kwong, Wah Hospital, X.L. Zou, Yida Zhang, Ye Liu, Lin Shi, D Kan, Wu Ouyang, Li-Mei Chen, Si‐Wei Liu, Da Chen, Yanhong Ma, Chengqiang Cui, Q Zhang, W Lao, Cheng Huang, Heng Ban, Hai Liu, Yusheng Shi, Qi Si, Yong Ding, Zong Li, Hong Wei Liu, Zengwu Shao, Yulong Li, Shuangxi Song, Weiliang Jin, Ye Liu, Dong Hua, X Liu High, Wang We, A Sharhan, Erdeng Du, Xiong Hu, Zhixiang Zhou, Junjie Lu, Yaqiong Tang, A Abdelrahman, M Ghannam, S Lotfy, Mohammad AlHamaydeh, Xi Xiong, F Nkuichou, Tao Wang, M Ma, K Du Corrosion, Na Wang, Jian Hua, Xin Xue, Qiao Huang, Fei Wang, Haidong Huang, Luquan Ren, Kai Chen, Xue Li, Lei Wang, Bai Yang, Ming Zhang, Wenjun Liu, Z Lei, Dangxiao Wang, Jun Wang, Lang Zhou, Xinyu Shu (2022). FEASIBILITY STUDY OF VISCOELASTIC HYBRID SELF-CENTERING BRACE (VSCB) FOR SEISMIC-RESISTANT STEEL FRAMES. , DOI: https://doi.org/10.18057/icass2020.p.113.
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Type
Report
Year
2022
Authors
100
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.18057/icass2020.p.113
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