Experimental Study on Self-Centering Concrete Wall with Distributed Friction Devices |
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| Authors: | Tong Guo Guodong Zhang Cheng Chen |
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| Institution: | 1. Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education , Southeast University, Nanjing , Jiangsu , P. R. , China;2. State Key Lab of Subtropical Building Science , South China University of Technology, Guangzhou , Guangdong , P. R. , China;3. Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education , Southeast University, Nanjing , Jiangsu , P. R. , China;4. School of Engineering , San Francisco State University , San Francisco , CA , USA |
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| Abstract: | A self-centering concrete wall with distributed friction devices is proposed to achieve seismic resilient building structures. Unbonded post-tensioned tendons, running vertically through wall panels, provide a restoring force that pulls the structure back toward its undeformed plumb position after earthquake. Two steel jackets are installed at wall toes to prevent concrete spalling and crushing. Friction devices are distributed between the wall and its adjacent gravity columns to achieve controllable energy dissipation, and these devices are readily replaceable. Desirable self-centering and energy dissipation capacities were observed in low-cyclic loading tests, and influences of various parameters on the hysteretic behavior were investigated. |
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| Keywords: | Seismic Resilient Self-centering Precast Concrete Wall Friction Device Unbonded Post-tensioning Energy Dissipation |
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