抗震结构静力弹塑性分析的Pushover-QR法  

Pushover-QR Method for Static Elasto-plastic Analysis of Aseismic Structures

作　　者：张克纯[1] 李丕宁[2] 陆洲导[1] 秦荣[2] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]广西大学土木建筑工程学院

出　　处：《沈阳建筑大学学报（自然科学版）》2006年第2期232-236,共5页Journal of Shenyang Jianzhu University：Natural Science

基　　金：建设部科学技术计划项目(200473);广西科学研究与技术开发计划项目(0442001)

摘　　要：目的将以B样条函数为基础的QR法与Pushover分析方法相结合,建立高层建筑结构静力弹塑性分析的Pushover-QR法.方法通过沿用传统Pushover分析的实施思路,用QR法代替Pushover分析方法中的有限元理论部分.结果表明Pushover-QR法充分利用了QR法和Pushover分析方法各自的优点,使得抗震结构静力弹塑性分析的计算得到较大的简化;Pushover-QR法在加载模式、目标位移的确定等方面都考虑了结构高阶振型的影响.结论工程算例表明,该法是一种经济、有效、可行的实用分析方法.Combining the QR-method based on B-spline functions and the pushover analysis method, the authors put forward the pushover-QR method for static elasto-plastic analysis of high-rising buildings in this paper. The method still hires the ideology of traditional pushover method in static elasto-plastic analysis of aseismic structures. By replacing the theory of finite element with the QR-method in the process of pushover analysis and making full use of the advantages of both QR-method and finite element, pushover-QR method greatly simplifies the calculation of astatic elasto-plastic analysis of aseismic structures. In addition, the paper has considered the contributions of higher modes of structures when the lateral load patterns, target displacement and other aspects are determined. The procedure of the pushover-QR method is used to calculate some examples, which shows that the pushover-QR method is an economic, efficient and feasible analysis method.

关 键 词：静力弹塑性分析 QR法 PUSHOVER法 Pushover-QR法 抗震结构 

分 类 号：TU973[建筑科学—结构工程]