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Steel and Composite Structures Volume 47, Number 5, June 10 2023 , pages 663-677 DOI: https://doi.org/10.12989/scs.2023.47.5.663 |
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Seismic performance evaluation of steel moment frames with self-centering energy-dissipating coupled wall panels |
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Lu Sui, Hanheng Wu, Menglong Tao, Zhichao Jia and Tianhua Zhou
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| Abstract | ||
| The self-centering energy-dissipating coupled wall panels (SECWs) possess a dual capacity of resiliency and energy dissipation. Used in steel frames, the SECWs can localize the damage of structures and reduce residual drifts. Based on OpenSEES, the nonlinear models were established and validated by experimental results. The seismic design procedure of steel frame with SECW structures (SF-SECW) was proposed in accordance with four-level seismic fortification objectives. Nonlinear time-history response analyses were carried out to validate the reasonability of seismic design procedure for 6-story and 12-story structures. Results show that the inter-story drifts of designed structures are less than drift limits. According to incremental dynamic analyses (IDA), the fragility curves of mentioned-above structure models under different limit states were obtained. The results indicate that designed structures have good seismic performance and meet the seismic fortification objectives. | ||
| Key Words | ||
| seismic collapse; seismic performance; self-centering; steel moment frames; wall panels | ||
| Address | ||
| Lu Sui, Hanheng Wu, Menglong Tao, Zhichao Jia and Tianhua Zhou:School of Civil Engineering, Chang'an University, Xi'an 710061, China | ||