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隔层错跨剪力墙与并联剪力墙抗震性能的比较研究
The Comparative Study on Seismic Performance between Staggered Shear Wall and Coupled Shear Walls
【作者】 许伟军;
【导师】 韦树英;
【作者基本信息】 广西大学 , 固体力学, 2007, 硕士
【摘要】 本文对一种新型的高层建筑结构体系——隔层错跨剪力墙结构体系进行计算分析,并对比并联剪力墙结构进行了抗震性能的比较研究。对结构的分析方法选取了精确、有效的有限元方法,除了选用剪力墙有限元分析常用的线性矩形单元,还选用了带旋转自由度的矩形单元加2结点6自由度的梁单元的组合,剪力墙块划分为带旋转自由度的矩形单元,梁、柱则划分为2结点6自由度梁单元,充分考虑了平面内转角的影响。对结构体系抗震性能的分析首先采用了常用的振型分解反应谱法,按SRSS进行组合计算结构的最大顶层位移及最大底部剪力,同时进一步采用时程分析法直接输入地震波对结构体系进行抗震分析,比较不同结构的最大顶层位移和时程曲线。为进一步探讨隔层错跨剪力墙结构体系的抗震性能,采用不同的梁柱截面组合进行计算分析,分析它们在不同情况下的抗震性能,并根据计算结果就结构体系提出改进措施并计算验证。结构的计算分析采用自编Matlab语言有限元程序,并选用高层结构分析有限元软件ETABS进行计算结果的对比。
【Abstract】 Compared with the Couple shear walls Structure, analysis of a new type of High-rise Building Structural System -the Staggered Shear Wall Structure with the study on seismic in this paper.The method of structure analysis based on Finite Element Methods, the rectangular element which is often be used to do finite element analysis of shear wall has been selected, and the combination of rectangular element with rotational degree of freedom and two-node beam element with six degrees of freedom, the shear walls is divided into the rectangular element with rotational degree of freedom, beam and column are divided into the two-node beam element with six degrees of freedom, considers adequately the effect of corner in-plane.The method of structure analysis on seismic performance adhere to the mode-superposition response spectrum method, which is most commonly used, calculate the maximum displacement of top floor and maximum shearforce of base with SRSS , and further research of structure analysis on seismic performance with time history analysis method, calculate the maximum displacement of top floor and maximum acceleration of top floor with the input of earthquake wave. For further study the seismic performance of structure system of Staggered Shear Wall, change the section of beam and column calculate it again, analyse the different seismic performance with different section assmblagy, and provides measures for improvement based upon the analysis, checking calculation at last.In this paper adheres to the software of Matlab make finite element program, calculation and analysis of Structure, and make use of the software of ETABS to textual calculate it.
【Key words】 staggered shear wall; mode superposition; time history analysis; seismic performance;
- 【网络出版投稿人】 广西大学 【网络出版年期】2007年 05期
- 【分类号】TU398.2
- 【被引频次】4
- 【下载频次】73