基础橡胶垫、滑移和混合隔震房屋的动力特性分析  

Dynamic Time-History Analysis of Hybrid Base Isolation of Building Structure

作　　者：李俊[1] 李爱群[2] 程文瀼[2] 

机构地区：[1]南京航空航天大学航空宇航学院,南京210016 [2]东南大学土木工程学院,南京210096

出　　处：《南京航空航天大学学报》2002年第1期22-26,共5页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：为了对采用叠层橡胶隔震垫、滑移隔震垫和混合隔震垫的这三种基础隔震结构体系在隔震方面的作用和效果有一个综合的认识和理解 ,本文对这三种基础隔震垫分别建立了力学计算模型和运动微分方程 ,并且编制了相应的动力反应时程分析程序。通过工程算例 ,对比固定结构与隔震结构由于结构的支承条件不同所引起的不同的动力反应 ,由于隔震结构大大地降低了结构对地震动的反应 ,从而证实了隔震的有效性。同时 ,通过分析上述三类隔震结构在地震动下动力反应的基本特点 ,对比了这三类基础隔震结构在隔震作用方面的不同效果及其优劣性 ,从而为实际工程选择适合的隔震方式及其参数提供参考。For a comprehensive understanding about the roles and the effects of the three kinds of base isolation structure systems, i.e. the rubber bearing isolation cushion, the sliding isolation cushion or the hybrid isolation cushion, the models of the mechanics calculation and the equations of the movement differential of the three kinds of base isolation cushions are built, as well as the programs of the dynamic time history analysis are worked out, respectively. By the calculation of the engineering, it proves the effectiveness of isolation, because the responses of the isolation structures to earthquake are greatly reduced, by comparing to the different dynamic responses of the fixed structure and the isolation structure as a result of the different bearings. Meanwhile, by analyzing the basic features while the three kinds of structures meet the earthquake, by comparing to the different effects as well as its superiority and inferiority in resisting earthquake, its style and the reference parameters are provided for the practice engineering.

关 键 词：基础隔震结构 动力反应 混合隔震垫 动力特性 滑移隔震垫 橡胶隔震垫 

分 类 号：TU352.12[建筑科学—结构工程]