摘要
研究了基于摩擦耗能约束的框架结构减震控制问题。首先阐述了摩擦耗能约束的结构形式,随后建立了摩擦耗能约束的力学模型。建立了可用于框架结构地震反应控制的双旗型力-位移关系曲线。在此基础上,建立了设置摩擦耗能约束的框架结构的动力分析方法。以某多层框架结构为例,进行了结构地震反应控制的研究,并就减震性能进行了相关的参数研究。结果表明:摩擦耗能约束具有良好减震性能,可以有效的耗散结构的地震输入能量。
The response control of frame structures subjected to earthquakes using energy dissipating restraints(EDR)was actively conducted.The configuration of EDR was first introduced and then the mechanical model of EDR was established.The force-deformation relationship of EDR with a double-flag shape was constructed for the seismic response control of frame structures.Furthermore,the dynamic analytical method of frame structure incorporated with EDR was developed.A multi-storey frame structure was taken as an example to investigate the control efficacy of EDR under seismic excitations.The detailed parametric investigation was carried out to assess the control efficacy.The analytical results indicate that the EDR has satisfactory energy-dissipating capacity and thus can be utilized to effectively dissipate the vibrant energy input by seismic excitations.
作者
陈家鑫
宋欣欣
吴镜泊
CHEN Jia-xin;SONG Xin-xin;WU Jing-bo(Key Laboratory of Roadway Bridge and Structural Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《武汉理工大学学报》
CAS
北大核心
2019年第4期48-51,98,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(51678463)
住建部科技计划(2017-K5-003)
关键词
框架结构
摩擦耗能约束
地震响应控制
参数分析
frame structures
energy dissipating restraints
seismic response control
parameter analysis
