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Steel and Composite Structures Volume 51, Number 3, May 10 2024 , pages 289-304 DOI: https://doi.org/10.12989/scs.2024.51.3.289 |
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Displacement-based design method for an energy-dissipation self-centering wall panel structure |
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Sisi Chao, Guanqi Lan, Hua Huang, Huiping Liu and Chenghua Li
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| Abstract | ||
| The seismic performance of traditional steel frame-shear wall structures was significantly improved by the application of self-centering steel-reinforced concrete (SRC) wall-panel structures in the steel frames. This novel resilience functionality can rapidly restore the structure after an earthquake. The presented steel frame with steel-reinforced concrete selfcentering wall-panel structures (SF-SCW) was validated, indicating its excellent seismic performance. The seismic design method based on bear capacity cannot correctly predict the elastic-plastic performance of the structure, especially certain weak floors that might be caused by a major fracture. A four-level seismic performance index, including intact function, continued utilization, life safety, and near-collapse, was established to achieve the ideal failure mode. The seismic design method, based on structural displacement, was proposed by considering performance objectives of the different seismic action levels. The pushover analysis of a six-floor SF-SCW structure was carried out under the proposed design method and the results showed that this six-floor structure could achieve the predicted failure mode. | ||
| Key Words | ||
| fracture mode; performance index; seismic design; self-centering wall panel; steel frame | ||
| Address | ||
| Sisi Chao, Hua Huang, Huiping Liu and Chenghua Li:School of Civil & Architecture Engineering, Xi'an Technological University, Xi'an 710021, China Guanqi Lan:1)School of Civil Engineering, Xi'an Shiyou University, Xi'an 710065, China 2)Key Laboratory of Low-carbon Urban Construction of Xi'an, Chang' an University, Xi'an 710061, China | ||