ANSYS高层建筑主体结构地震响应分析及优化

摘要现代高层结构的规模越来越大，高度越来越高，其抗震设计也越来越重要。国内外不少学者都正致力于研究高层结构在地震响应、弹塑性时程分析等方面的新理论和新方法。本文结合南京某36层高层住宅楼的工程背景，运用SATWE软件分析结构基本周期和多遇地震下的弹性反应，运用EPDA软件分析结构罕遇地震下的弹塑性反应。结果表明：（1）减小墙厚和减少墙体布置可以调整原结构方案偏小的基本周期，保证结构整体刚度的合理性。（2）本结构在多遇地震下的层间位移角满足规范要求，且ANSYS与PKPM在周期和弹性时程分析方面的计算结果符合的很好。（3）本结构在罕遇地震下的层间位移角满足规范要求，且通过对有害位移角等曲线的判断第6、7层为薄弱层，通过塑性铰出现顺序判断东北和西南两户的客厅短梁为薄弱构件，为结构设计提供了有益的参考。
关键词高层结构地震响应时程分析薄弱层塑性铰10196
毕业设计说明书（论文）外文摘要
Title Architectural and Structure Design of One High-rise Residential
         Building (36-storey) in Nanjing - Analysis and Optimization
of the Main Structure Earthquake Response
Abstract
The modern high-rise structures are becoming larger, higher and the seismic design is also becoming more important. Domestic and foreign scholars are working on the new theories and methods in seismic response, nonlinear time history analysis of high-rise structures. In this paper, according to the engineering background of a 36-storey high-rise residential building in Nanjing, the author uses SATWE and EPDA to analysis the period and response under multi earthquake and rare earthquake. The results showed that:(1)to reduce the thickness of the wall and the wall layout could adjust the low fundamental period of the original structure so as to ensure the rationality of overall stiffness of the structure.(2)the angle of floor displacement in the multi earthquake meet regulatory requirements, and the elastic time history analysis results of ANSYS and PKPM agree well.(3)the angle of floor displacement in the rare earthquake meet regulatory requirements, and hazardous displacement angle curve analysis showed that the 6,7 layer are weak layers, the two short beam of the northeast and southwest parlor are weak components according to the appearance order of plastic hinges, all of these are useful references for the structural design.
Keywords high-rise structure seismic response time history analysis
weak layer plastic hinge
目   次
1 引言 1
1.1 研究背景 1
1.2 研究现状 3
1.3 本文研究内容 6
2 弹塑性动力时程分析软件简介 7
2.1 建筑结构软件的计算方法 7
2.2 弹塑性动力时程分析软件EPDA 9
2.3 与其他有限元分析软件的比较 10
2.4 本章小结 12
3 工程实例设计与分析 13
3.1 设计资料 13
3.2 PMCAD建模 16
3.3 SATWE计算 29
3.4 本章小结 51
4 弹性时程分析及优化 52
4.1 弹性时程分析 52
4.2 计算结果及数据分析 56
4.3 ANSYS分析 62
4.4 本章小结 66
5 弹塑性时程分析及优化 67
5.1 弹塑性时程分析 67
5.2 计算结果及数据分析 69
5.3 本章小结 85
6 结论与展望 86
6.1 结论 86
6.2 展望 86
致谢 87
参考文献 88
1 引言
1．1 研究背景 ANSYS高层建筑主体结构地震响应分析及优化:http://www.youerw.com/gongcheng/lunwen_9180.html