结构能量分析非线性地震反应的理论研究  

Theoretical study of nonlinear earthquake response by energy analysis of structure

作　　者：熊仲明[1] 史庆轩[1] 王社良[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2005年第2期204-209,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：陕西省教育厅专项基金项目 (0 1JK115 );(0 0 JK2 3 9) ;陕西省自然科学基金项目 (2 0 0 3 E2 3 0 )

摘　　要：采用能量分析方法,对抗震结构地震总输入及分配进行了理论研究,从地震动三要素,结构自身动力特性两方面探讨了抗震结构总输入能量及其影响因素.最后,通过能量的抗震设计准则检验了结构各层在大震下的安全性.计算结果表明,采用考虑和不考虑负刚度退化三线型恢复力模型,对结构破坏指数D影响较大.在结构分析中,若不考虑负刚度的影响。The total earthquake input and distribution of building structure with energy dissipative devices are investigated with energy method. The varied factors of the total earthquake input energy is discussed in two aspects of dynamic three earthquake factors and dymamic properties of structure. Safety of the structure is examined with aseismic design criterion of energy in exceptional earthquakes. Calculation results show that the three linear force-restoring model with and without negative stiffness have a great impact on the damage index D.With no consideration given to the negative stiffness, danger of the structure collapse is most likely to take place.

关 键 词：能量分析 非线性 地震反应 能量 负刚度 

分 类 号：TU352[建筑科学—结构工程]