| 超弹性-复摩擦摆隔震支座的性能试验与数值模拟 |
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| 引用本文： | 庄鹏,王尉,韩淼.超弹性-复摩擦摆隔震支座的性能试验与数值模拟[J].世界地震工程,2022,38(1):099-109. |
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| 作者姓名： | 庄鹏 王尉 韩淼 |
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| 作者单位： | 1 北京建筑大学土木与交通工程学院, 北京100044;2 北京建筑大学 北京未来城市设计高精尖创新中心, 北京100044;3 北京建筑大学 工程结构与新材料北京高等学校工程研究中心, 北京100044 |
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| 基金项目： | 北京市自然科学基金资助项目(8182016);北京建筑大学北京未来城市设计高精尖创新中心资助项目(UDC2016030200);北京建筑大学高校基本科研业务费专项资金资助项目(X18150)。 |
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| 摘 要： | 利用复摩擦支座（Double friction pendulum bearing，DFPB）和形状记忆合金（Shape Memory alloy，SMA）拉索，提出了一种超弹性-复摩擦支座（Superelastic-double friction pendulum bearing，SDFPB）。该新型滑动隔震支座在水平方向可适应多水准地震激励，且在竖向拥有抵抗拉拔的功能。阐述了SDFPB的构造特点和工作原理。通过性能试验考察了这一隔震装置的力学特性。建立了SDFPB的恢复力模型，利用其模拟了试验条件下的滞回响应。研究结果表明:SDFPB的耗能能力优良，且具有较好的多级抗震自适应能力；模拟值与试验值吻合较好，验证了上述力学模型的正确性。
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| 关 键 词： | 隔震 复摩擦摆支座 形状记忆合金拉索 性能试验 恢复力模型 |
Experimental and numerical study of superelastic-double friction pendulum isolation bearing |
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| ZHUANG Peng,WANG Wei,HAN Miao.Experimental and numerical study of superelastic-double friction pendulum isolation bearing[J].World Information On Earthquake Engineering,2022,38(1):099-109. |
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| Authors: | ZHUANG Peng WANG Wei HAN Miao |
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| Institution: | 1 School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;2 Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;3 Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijing University of Civil Engineering and Architecture, Beijing 100044, China |
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| Abstract: | By combining shape memory alloy（SMA）cables with double friction pendulum bearing（DFPB），a new isolator called Super elastic-DFPB（SDFPB）is presented. Depending on the SMA cables，the SDFPB adapts to multi-level earthquake intensities in horizontal directions and resists tension action in vertical direction. The configuration and the operation principle of the SDFPB were described. Mechanical properties of the novel isolator were studied through performance experiments. A restoring force model of the SDFPB was established，and the hysteretic response of the tested isolation device specimen was numerically simulated by using this model. The results show that the SDFPB provides excellent energy dissipation capacity and multi-level adaptability to seismic resistance. Moreover，the numerical results match closely with the experimental data，proving the validity of the mechanical model of the SDFPB. |
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| Keywords: | Seismic isolation double friction pendulum bearing shape memory alloy cable performance experiment restoring force model |
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