| 隔震结构-设备组合体系的优化设计研究 |
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| 引用本文： | 党育,王宝平,李国宝.隔震结构-设备组合体系的优化设计研究[J].世界地震工程,2022,38(1):110-118. |
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| 作者姓名： | 党育 王宝平 李国宝 |
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| 作者单位： | 兰州理工大学 土木工程学院, 甘肃 兰州 730050 |
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| 基金项目： | 国家自然科学基金(51668043)。 |
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| 摘 要： | 对于放置有设备的功能性隔震结构,目前的设计方法忽略了结构与设备的动力相互作用,仅满足隔震结构的抗震要求,并不考虑设备的抗震性能.因此,本文给出一种隔震结构-设备组合体系的优化设计方法,考虑设备与隔震结构的相互作用和非比例阻尼影响,以设备和隔震结构同时满足抗震要求为目标函数,采用多种群遗传算法,对隔震结构-设备组合体系进...
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| 关 键 词： | 隔震结构 设备 组合体系 优化 多种群遗传算法 |
Study on optimization design of isolated structure-equipment composition systems |
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| DANG Yu,WANG Baoping,LI Guobao.Study on optimization design of isolated structure-equipment composition systems[J].World Information On Earthquake Engineering,2022,38(1):110-118. |
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| Authors: | DANG Yu WANG Baoping LI Guobao |
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| Institution: | School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | For the critical isolated structure located the expensive and precise equipment，the current design methods usually ignore the dynamic interaction between structure and equipment，meanwhile，the equipment is neglected to seismic design. Therefore，an optimization method of isolated structure-equipment composition systems is proposed to consider the interaction between the equipment and isolated structure as well as non-proportional damping effect. To meet the seismic requirements of equipment and isolated structures，multiple population genetic algorithm （MPGA）is adopted to identify the parameters of the isolated layer and the equipment. The proposed method is demonstrated in a typical isolated building in China. The optimal design of the isolated building can be obtained to reduce the inter-story drift ratio of the superstructure and the displacement of bearings. In addition，the equipment can reduce acceleration by 45% and is satisfied the seismic requirement. The study demonstrates that the proposed method can be used as a practical and efficient guide to designing isolated structure-equipment composition systems. |
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| Keywords: | isolated structure equipment composition systems optimization multiple population genetic algorithm |
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