摘要
建立设备-结构耦合隔震体系模型,选取近断层地震波,分析设备质量比变化对耦合隔震体系的隔震层位移、楼层层间位移、楼层加速度和设备位移等动力响应的影响。结果表明,随着设备质量比的增大,设备的自振周期与主体结构的自振周期接近,设备与主体结构相互作用增强,对结构体系的动力响应影响明显,隔震层位移、楼层层间位移、楼层加速度呈逐渐减小的趋势,设备位移呈逐渐增大的趋势。
The device-structure coupling isolation system model is established. The near-fault seismic waves containing pulses are selected. The influence of equipment mass ratio on the dynamic response of the coupled isolation system is analyzed, such as the displacement of isolation layer, the displacement between floors, the acceleration of floor and the displacement of equipment. The results show that with the increase of equipment mass ratio, the natural vibration frequency of the equipment is close to that of the main structure, the interaction between the equipment and the main structure is enhanced, and the dynamic response of the structural system is significantly affected. The displacement of the isolation layer, the displacement between floors, the acceleration of the floor show a trend of decreasing gradually, and the displacement of the equipment shows a trend of increasing gradually.
作者
韩淼
董凯旗
杜红凯
马永尚
刘洋博
冯思嘉
Han Miao;Dong Kai-qi;Du Hong-kai;Ma Yong-shang;Liu Yang-bo;Feng Si-jia(Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Municipal Commission of Housing and Urben-Rural Development,Beijing100080,China)
出处
《工程抗震与加固改造》
北大核心
2022年第5期100-105,共6页
Earthquake Resistant Engineering and Retrofitting
基金
国家重点研发计划项目(2019YFC1509500)
北京建筑大学高精尖创新中心项目(UDC2019032424)。
关键词
近断层地震
设备-结构耦合
隔震体系
动力响应
near-fault earthquake
device-structure coupling
isolation system
dynamic response
作者简介
韩淼(1969-),男,教授,博士,主要从事工程结构抗震减灾及抗震性能研究;通讯作者:杜红凯(1981-),男,讲师,主要从事工程结构抗震减灾及抗震性能研究。
