某双塔楼连体结构的地震响应分析
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摘要
运用ANSYS有限元分析软件对一双塔楼连体结构和单体结构进行了对比分析。通过建立三维计算模型,比较了两种结构的动力特性,并采用反应谱法和时程分析法对两种结构施加x、y向水平地震激励,得出了两个方向地震作用下的两种结构的底部剪力时程曲线、顶层位移时程曲线和加速度时程曲线.以及层位移变化曲线。计算结果表明,双塔连体结构由于增设了连体,可以很好的协调两个塔楼的运动与变形,使得整个结构的受力与变形与单体结构类似,具有良好的抗震性能。
A double-tower connecting tall building which stands in vivid contrast against a mono-building is analysised by ANSYS finite element program, by which builds a three-dimension calculating model in this paper. By comparing the dynamic characteristics of a double-tower connecting tall building with a mono-building, the results illustrate the differences of them. The spectrum analysis and the time history dynamic analysis of the two types of buildings are carried out in x and y direction,and the time-dependent curve of bottom shear,roof horizontal displacement and acceleration are achieved, Floors displacement curve is also achieved. These results demonstrate that the connecting unit of the double-tower connecting tall building can make the movement and deformation of two towers harmonized,and the whole framework will performance like the mono-building with good aseismatic capability.
A double-tower connecting tall building which stands in vivid contrast against a mono-building is analysised by ANSYS finite element program, by which builds a three-dimension calculating model in this paper. By comparing the dynamic characteristics of a double-tower connecting tall building with a mono-building, the results illustrate the differences of them. The spectrum analysis and the time history dynamic analysis of the two types of buildings are carried out in x and y direction,and the time-dependent curve of bottom shear,roof horizontal displacement and acceleration are achieved, Floors displacement curve is also achieved. These results demonstrate that the connecting unit of the double-tower connecting tall building can make the movement and deformation of two towers harmonized,and the whole framework will performance like the mono-building with good aseismatic capability.
引文
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4 中华人民共和国国家标准.高层建筑混凝土结构技术规程(JGJ3-2002) .北京:中国建筑工业出版社,2002
5 R.W.Clough,J.Penzien著,王光远译.结构动力学.北京:科学出版社,1985
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7 邓志恒,林倩,安沁丽.巨型框一筒结构的地震反应.广西科学,2005,12(2)
8 雷胜梅,殷祥超,徐杰.徐州某建筑结构的动力分析及地震反应分析.工程抗震与加固改造,2005,27(4)
2 丰定国,王社良.抗震结构设计.武汉:武汉理工大学出版社,2003
3 李春和.不对称连体双塔楼结构的动力分析.浙江大学学报(工学版),2003,37(5)
4 中华人民共和国国家标准.高层建筑混凝土结构技术规程(JGJ3-2002) .北京:中国建筑工业出版社,2002
5 R.W.Clough,J.Penzien著,王光远译.结构动力学.北京:科学出版社,1985
6 中华人民共和国国家标准.建筑抗震设计规范(GB50011-2001) .北京:中国建筑工业出版社,2001
7 邓志恒,林倩,安沁丽.巨型框一筒结构的地震反应.广西科学,2005,12(2)
8 雷胜梅,殷祥超,徐杰.徐州某建筑结构的动力分析及地震反应分析.工程抗震与加固改造,2005,27(4)
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