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首页> 外文期刊>Journal of structural engineering >Experimental Investigation on the Seismic Behavior of a New Self-Centering Shear Wall with Additional Friction
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Experimental Investigation on the Seismic Behavior of a New Self-Centering Shear Wall with Additional Friction

机译：新型自定心剪力墙与额外摩擦的抗震行为的实验研究

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In this work, a new self-centering shear wall with disc spring devices (SCSW-DSD) was developed and experimentally verified. The proposed SCSW-DSD was a combination of a reinforced concrete (RC) wall and two disc spring devices (DSDs), and the DSD comprised both a self-centering device to provide restoring force and a friction energy dissipator to dissipate seismic energy. Two SCSW-DSD specimens with different additional friction forces were designed and fabricated, and four low reversed cyclic loading tests were conducted to investigate the effect of additional friction on the seismic behavior. The results reveal that the SCSW-DSD specimens exhibited stable self-centering and effective energy dissipation during all four tests, and the bearing capacity and energy dissipation increased with the increase of additional friction force. The residual drift ratios of the SCSW-DSD specimens were also reduced by installing the DSDs. In addition, the main parts of the RC wall remained elastic at a drift ratio of 3% after the first loading tests. Although cracks and local concrete crushing occurred at the bottom of the RC wall, these could be repaired, and the earthquake resilience requirements were still met after the second loadings. (C) 2021 American Society of Civil Engineers.
机译：在这项工作中，开发了一种具有圆盘弹簧装置（SCSW-DSD）的新的自定心剪力墙并进行实验验证。所提出的SCSW-DSD是钢筋混凝土（RC）壁和两个盘弹簧装置（DSD）的组合，DSD包括自定心装置，以提供恢复力和摩擦能量散热器以消散地震能量。设计并制造了两个具有不同额外摩擦力的SCSW-DSD样品，并进行了四种低逆转的循环加载试验，以研究额外摩擦对地震行为的影响。结果表明，SCSW-DSD标本在所有四个测试中表现出稳定的自定心和有效的能量耗散，并且随着额外摩擦力的增加，承载力和能量耗散增加。通过安装DSD，还降低了SCSW-DSD样本的残余漂移比。另外，RC壁的主要部分在第一个装载试验后的漂移比为3％的漂移比保持弹性。虽然在RC墙的底部发生裂缝和局部混凝土粉碎，但是可以修复这些，并且在第二个负载量之后仍然遇到地震弹性要求。 （c）2021年美国土木工程师协会。

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