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首页> 外文期刊>Bulletin of earthquake engineering >Application of an energy-based design procedure in self-centering shear wall systems
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Application of an energy-based design procedure in self-centering shear wall systems

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摘要

Self-centering shear wall systems (SCSWSs) exhibit superior seismic capacities with low-damage and self-centering features. However, the cumulative effect under long duration earthquakes would diminish robustness of the system and lead to increased unrecoverable damage. Thus, it should be considered in seismic designs for SCSWSs. This paper applies an energy-based design procedure (EBDP) to SCSWSs in accordance with the Chinese code. A step-by-step design procedure is presented to conduct multi-level designs for SCSWSs using EBDP, while detailed explanations are elaborated corresponding to SCSWS features. A design example is presented to verify the applicability of the EBDP in SCSWSs. The performance of the designed SCSWS is then assessed and compared with a SCSWS designed by the direct displacement-based design method. Results show that the EBDP designed structure has 13 enhanced strength capacity with better controllability in the damage development. The damage index equaling to 0.35 and 0.46 are quantified with two groups of earthquakes, which consists with the performance demands. In addition, deformations are in good agreement with the design objectives, implying reasonable application of the EBDP in SCSWSs.

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