某剪力墙结构带框支部分的平面有限元和侧向刚度分析

发布时间：2018-06-28 03:41

本文选题：框支剪力墙 + 刚度比　；参考：《安徽建筑大学》2016年硕士论文

【摘要】：近年来随着我国经济的发展和人口的扩增,促使现代建筑的规模不断扩大,人们对房屋建筑使用功能提出越来越高的要求,现代建筑朝着多功能,多用途的方向发展。其中带转换层的高层建筑虽然能满足下部大空间的建筑功能要求,但是转换部位容易造成侧向刚度突变,并且结构竖向构件上部和下部间断不连续,转换构件受力复杂,设计中需要对转换部位的侧向刚度和受力特点尤为关注。目前,针对平面规则性结构研究较多,但对超长且端部转换的平面不规则结构研究较少,本文采用多种计算模型对结构整体和部分分别计算侧向刚度进行复核。转换构件受力复杂,在设计中需要对转换构件的受力情况进行详细的有限元分析,并且按照应力分布情况校核配筋。本文以合肥市某超长剪力墙结构带部分框支的建筑为工程实例,结合抗震性能化设计要求,进行了以下几方面的工作,并得出了相应的结论:1.采用SATWE程序对该结构整体进行多遇地震下振型分解反应谱分析和弹性时程分析,对结构整体进行了评估,分析结果表明多遇地震下结构整体的各项抗震性能指标满足规范要求,反应谱分析和弹性时程分析结果具有一致性和规律性。2.为进一步研究转换部位的侧向刚度,对转换部位作为隔离体的侧向刚度进行了校核,结果表明转换部位作为隔离体的侧向刚度满足规范要求。3.采用平面有限元分析软件FEQ对转换构件进行平面有限元分析,详细分析了转换构件在竖向荷载和水平荷载下的应力分布情况,按应力分析结果取最不利值校核配筋,并对框支剪力墙的设计进行了简单的探讨。4.采用了Pushover程序对结构整体进行罕遇地震下的静力弹塑性分析,对罕遇地震下结构的抗震性能进行了评估,并根据计算分析,针对本工程特点和抗震性能目标的要求,对本工程提出了若干条抗震加强措施。
[Abstract]:In recent years, with the development of economy and the expansion of population in our country, the scale of modern buildings is expanding constantly, people put forward higher and higher demands on the use function of housing buildings, and modern buildings are developing towards multi-function and multi-purpose. Although the high-rise building with transfer floor can meet the building function requirements of large space in the lower part, the transition site is apt to cause the abrupt change of lateral stiffness, and the discontinuity between the upper and lower parts of the vertical members of the structure is not continuous, and the force of the transfer member is complex. Special attention should be paid to the lateral stiffness and mechanical characteristics of the transfer site in the design. At present, there are more researches on regular plane structures, but less on the plane irregular structures which are super-long and end converted. In this paper, various computational models are used to check the lateral stiffness of the whole and part of the structures respectively. The stress of the transfer member is complex, so it is necessary to make detailed finite element analysis on the force of the transfer member in the design, and to check the reinforcement according to the stress distribution. In this paper, taking a building with partial frame support of an ultra-long shear wall structure in Hefei as an engineering example, combining with the requirements of seismic performance-based design, the following work has been carried out, and the corresponding conclusion: 1 has been obtained. By using SATWE program, the vibration mode decomposition response spectrum analysis and elastic time history analysis of the whole structure under frequent earthquakes are carried out. The analysis results show that the seismic performance indexes of the whole structure under frequent earthquakes meet the requirements of the code. The results of response spectrum analysis and elastic time history analysis are consistent and regular. In order to further study the lateral stiffness of the transfer site, the lateral stiffness of the transfer site as the isolator is checked. The results show that the lateral stiffness of the transfer site as the isolator meets the requirements of the specification .3. The plane finite element analysis software FEQ is used to analyze the plane finite element analysis of the transfer member. The stress distribution of the transfer member under vertical and horizontal loads is analyzed in detail, and the reinforcement is checked according to the results of the stress analysis. The design of frame-supported shear wall is discussed briefly. 4. The static elastoplastic analysis of the whole structure under rare earthquake is carried out by pushover program, and the seismic performance of the structure under rare earthquake is evaluated. According to the calculation and analysis, according to the requirements of the engineering characteristics and seismic performance objectives, Several seismic strengthening measures are put forward for this project.
【学位授予单位】：安徽建筑大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU398.2

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