某复杂高层建筑结构时程分析
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摘要
运用有限元程序ANSYS对某复杂高层建筑结构进行了模态分析及地震载荷作用下的时程分析,通过计算得出了结构的前20阶频率、振型,并进一步计算了在地震作用下时程分析的位移及内力,结果表明该结构具有很大的抗侧刚度,且沿高度分布均匀,自振频率满足结构使用要求,为结构设计提供了可靠的参考数据。
The dynamic property of a high-rise building structure and the time-history of its response under earthquake were analyzed by using the finite element program ANSYS. A modal analysis of the tower was conducted and the first 20 frequencies and modal shapes were obtained. The displacements and inner forces under the earthquake were calculated. The results show that the structural stiffness is enough to sustain earthquake load and along the height the stiffness is uniformly distributed. These results provide reliable basis for structural design.
The dynamic property of a high-rise building structure and the time-history of its response under earthquake were analyzed by using the finite element program ANSYS. A modal analysis of the tower was conducted and the first 20 frequencies and modal shapes were obtained. The displacements and inner forces under the earthquake were calculated. The results show that the structural stiffness is enough to sustain earthquake load and along the height the stiffness is uniformly distributed. These results provide reliable basis for structural design.
引文
[1]GB 50011-2001.建筑抗震设计规范.北京:中国建筑工业出版社,2002.
[2]钟善桐.高层钢管混凝土结构[M].哈尔滨:黑龙江科学技术出版社,1999.
[3]王呼佳,陈洪军.ANSYS工程分析进阶实例[M].北京:中国水利水电出版社,2006.
[4]陈文兵,唐家祥.水平任意向地震输入下双塔楼连体结构的动力分析[J].振动与冲击,2003,22(1):29—32.
[5]陈孝珍,朱宏平,陈传尧.某天气雷达站塔楼结构时程分析[J].华中科技大学学报(自然科学版),2004,32(8):28—30.
[2]钟善桐.高层钢管混凝土结构[M].哈尔滨:黑龙江科学技术出版社,1999.
[3]王呼佳,陈洪军.ANSYS工程分析进阶实例[M].北京:中国水利水电出版社,2006.
[4]陈文兵,唐家祥.水平任意向地震输入下双塔楼连体结构的动力分析[J].振动与冲击,2003,22(1):29—32.
[5]陈孝珍,朱宏平,陈传尧.某天气雷达站塔楼结构时程分析[J].华中科技大学学报(自然科学版),2004,32(8):28—30.
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