DYNAMIC RELIABILITY ASSESSMENT OF NON-LINEAR STRUCTURES UNDER EARTHQUAKE LOADS

摘要：

A newly developed probability density evolution method is presented for dynamic response analysis and reliability assessment of non-linear structures. In the method, a completely uncoupled one-dimensional governing partial differential equation is derived first with regard to evolutionary probability density function of the stochastic response of non-linear structures. For the dynamic reliability problem, a virtual stochastic process associated to the extreme value of the studied stochastic process is firstly constructed in such a way that the extreme value equals the value of the virtual stochastic process at a certain “instant of time. The probability density evolution method is then employed to evaluate the instantaneous probability density function of the virtual stochastic process. After that, dynamic reliability could be evaluated from the extreme value distribution, instead of the level-crossing process theory. An example, of which deals with a nonlinear frame structure subjected to ground motions, is illustrated to validate the proposed method.

作者: Zhang-Jun Liu Jie Li

作者单位: CTGU College of Civil & Hydroelectric Engineering, 8 University Avenue,Yichang 443002, Hubei province, P.R. China.

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）