不对称高位滑移连接双塔结构的抗震性能分析
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摘要
贵阳东景五星级酒店及办公楼综合项目由办公楼和酒店两个单体组成,两个单体通过高位钢连体结构相连,整体结构为复杂双塔连体超限的钢与混凝土混合结构。运用SATWE软件建立与实际情况相符的精确单体结构分析模型,对该结构进行动力特性分析、振型分解反应谱分析和弹性时程分析。针对连体结构的复杂性,利用ABAQUS软件建立整体模型,对结构进行弹塑性时程分析。分析表明,该结构在多遇及罕遇地震作用下,层间位移角和底部剪力等满足我国现行抗震规范的抗震设计标准;在罕遇地震作用下,连体与酒店之间滑移支座满足最大滑移量要求。
Dongjing Five-star Hotel and Office Complex Building consists of a hotel building and an office building,which connect each other by a steel corridor at the top of two buildings.The over-all structural system is an ultra-limit complicated steel-concrete construction and its seismic performance needs to be further evaluated.The precise structural analysis models of the hotel and the office building were developed respectively by SATWE software,and then the structural dynamic characteristics were analyzed.The spectrum analysis method and the elastic time-history analysis were carried out to obtain their dynamic responses.At the same time,the whole structural analysis model including the hotel and the office building was developed to carry out the elasto-plastic dynamic analysis by the general finite element software ABAQUS.The analysis results show that the inter-story displacement angle and the seismic shear at each story meet the requirement of the present code under minute earthquake.The maximum sliding capacity of sliding supports meets the design requirement under rare earthquake.
Dongjing Five-star Hotel and Office Complex Building consists of a hotel building and an office building,which connect each other by a steel corridor at the top of two buildings.The over-all structural system is an ultra-limit complicated steel-concrete construction and its seismic performance needs to be further evaluated.The precise structural analysis models of the hotel and the office building were developed respectively by SATWE software,and then the structural dynamic characteristics were analyzed.The spectrum analysis method and the elastic time-history analysis were carried out to obtain their dynamic responses.At the same time,the whole structural analysis model including the hotel and the office building was developed to carry out the elasto-plastic dynamic analysis by the general finite element software ABAQUS.The analysis results show that the inter-story displacement angle and the seismic shear at each story meet the requirement of the present code under minute earthquake.The maximum sliding capacity of sliding supports meets the design requirement under rare earthquake.
引文
[1]黄瑾,杨骁,王阳利.某大底盘双塔连体高层结构抗震性能分析和设计[J].建筑结构,2010,40(2):28-32.
[2]侯书利,张南,李俊峰,等.某复杂连体高层结构抗震设计[J].建筑结构,2010,40(10):26-29.
[3]张峥,丁洁民,王忠平.双塔连体复杂高层结构的超限分析及抗震性能评价[J].建筑结构,2008,38(9):52-57.
[4]刘晶波,李征宇,石萌,等.大跨高层连接体建筑结构动力分析[J].建筑结构学报,2004,25(1):45-52.
[5]黄坤耀,孙炳楠,楼文娟,等.非对称双塔连体结构的动力特性和地震响应分析[J].工业建筑,2001,31(8):27-29.
[6]JEEHO L,GREGORY L,FENVES.Plastic-damage model for cyclic loading of concrete structure[J].Journal of Engineering Mechanics,1998,124(8):892-900.
[7]张劲,王庆扬,胡守营,等.ABAQUS混凝土损伤塑性模型参数验证[J].建筑结构,2008,38(8):127-130.
[8]JGJ 3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.
[2]侯书利,张南,李俊峰,等.某复杂连体高层结构抗震设计[J].建筑结构,2010,40(10):26-29.
[3]张峥,丁洁民,王忠平.双塔连体复杂高层结构的超限分析及抗震性能评价[J].建筑结构,2008,38(9):52-57.
[4]刘晶波,李征宇,石萌,等.大跨高层连接体建筑结构动力分析[J].建筑结构学报,2004,25(1):45-52.
[5]黄坤耀,孙炳楠,楼文娟,等.非对称双塔连体结构的动力特性和地震响应分析[J].工业建筑,2001,31(8):27-29.
[6]JEEHO L,GREGORY L,FENVES.Plastic-damage model for cyclic loading of concrete structure[J].Journal of Engineering Mechanics,1998,124(8):892-900.
[7]张劲,王庆扬,胡守营,等.ABAQUS混凝土损伤塑性模型参数验证[J].建筑结构,2008,38(8):127-130.
[8]JGJ 3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.
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