钢筋混凝土框架—剪力墙结构平面非线性地震反应分析

【作者】 侯爱波；

【导师】 汪梦甫；

【作者基本信息】 湖南大学 ， 结构工程， 2003， 硕士

【摘要】 本文在前人研究的基础上，进一步应用和发展了框架—剪力墙结构的非线性分析方法，主要是对非线性动力时程分析和静力非线性pushover分析做了进一步的应用和发展。 在非线性动力时程分析中，在综合理解和应用前人相关理论概念和计算方法的同时，进一步提出一种新的考虑配筋分布的五分段平面杆件单元模型，并编制了相关的Fortran应用程序，相关算例分析证实此模型能够较好的反映实际配筋分布的影响。 在非线性静力分析(pushover分析)中，综合阐述了pushover分析的理论基础和不同的具体应用方法，并在pushover方法的关键问题荷载分布模式和目标位移的确定上提出新的方法，即由结构受力反推得到的瞬时的适应性的荷载分布模式和结合中国抗震规范反应谱的能力谱法确定目标位移的方法，同时提出一种新的循环往复加载的pushover应用方法，并编制了专门的pushover分析应用程序，应用此程序对不同算例进行分析，算例分析证实由结构受力反推得到的瞬时的适应性的荷载分布模式能够较好的模拟地震过程中实际的结构受力反应情况，循环往复加载的pushover分析方法较单向加载的pushover分析更能准确的反映实际的地震作用对结构的影响。更多还原

【Abstract】 In this thesis ,based on the research of the former scholars ,the nonlinear analysis method of the frame-wall structure is applied and improved ,which focus on the nonlinear time-history analysis and the static nonlinear pushover analysis .In the nonlinear time-history analysis ,based on the comprehension and the application of the former relevant theories and calculating methods ,a new five-segment planar bar element model considering reinforcement arrangement is developed ,and a relevant time-history analytic program is provided .The analytic results of two examples showed that the new five-segment planar bar element model can well reflect the effect of the reinforcement arrangement distribution.In the static nonlinear pushover analysis ,basic concepts and different applicable methods of the static nonlinear pushover analysis are summarized . Then the lateral load pattern and the target displacement ,which are key problems of the static nonlinear pushover analysis, are improved .The new developed lateral load pattern is the instantaneous adaptive lateral load pattern gained by the internal force of the structure, and the new developed capacity spectrum method combined with the code response spectrum is used to gain the target displacement .At the same time ,a pushover analysis of circulating load pattern is developed ,and a relevant static nonlinear pushover analytic program is provided .The analytic results of two examples demonstrated that the instantaneous adaptive lateral load pattern is able to reasonably capture the important response attribute and that the pushover analysis of circulating load pattern compared with the pushover analysis of single direction load pattern can more accurately reflect the effect of the earthquake .更多还原