弹性地基上高层建筑结构对确定性动力作用的稳态反应
|
摘要
本文通过对稳态反应随时间变化规律的分析和预测，将半无限大弹性地基上高层建 筑结构对多维确定性动力作用的稳态反应问题转化成了常微分方程组的边值问题。通过对某 一高层筒中筒结构的分析计算，得出了相当合理的结论：那就是当激励荷载的频率与结构系 统的自振频率很接近时，结构的反应会出现非常大的突变。
The steady-state response Problems of tall building structures on semi-infinite elastic subgrade, subjected to multi-dimensional deterministic dynamic loads, were converted into the boundary problems of ordinary differential equations by means of analyzing and predicting the time-varying property of the steady-state responses in the paper. A reasonable conclusion was drawn from the rend of an example of a tube-in-tube tall building structure. It is found that the response of the structure experiences enormous increment when the frequency of the excitation load is very dose to the natural frequency of the structure.
The steady-state response Problems of tall building structures on semi-infinite elastic subgrade, subjected to multi-dimensional deterministic dynamic loads, were converted into the boundary problems of ordinary differential equations by means of analyzing and predicting the time-varying property of the steady-state responses in the paper. A reasonable conclusion was drawn from the rend of an example of a tube-in-tube tall building structure. It is found that the response of the structure experiences enormous increment when the frequency of the excitation load is very dose to the natural frequency of the structure.
引文
[1]王光远.建筑结构的振动[M].北京:科学出版社,1978.
[2]袁驷.介绍一个常微分方程边值问题通用程序-COLSYS[J]计算结构力学及其应用,1990,7(2):104-105.
[3]陆鑫森.高等结构动力学[M].上海:上海交通大学出版社,1992
[4]曹宏,李秋胜,李桂青.工程结构抗震[M].北京:气象出版社,1993.
[5]王文亮.结构动力学[M].上海:复旦大学出版社,1993
[6]B.r.科列涅夫.地震动下工程结构物的动力计算(沈聚敏,高伯扬编译)[M].北京:地震出版社, 1994.
[7]龚耀清,包世华,龙驭球.半无限大弹性地基上变截面筒中筒高层建筑结构的自由振动[J]工程力 学,1999,16(3):7-14.
[8] Ray W. Clough Joseph Penzien Dynamics of structures[M]. New York: McGraw-Hill Inc, 1993.
[9] Toru Takerchi David C. S. Lee and Isso Kimura.Tube action and construction of Star-shaped 80 storyskyscraper[C]. In: N.K.Srivastava eds. Structural Engineering World Wide, San Francisco, USA:ElsevierScience Ltd, 1998: T105-1.
[2]袁驷.介绍一个常微分方程边值问题通用程序-COLSYS[J]计算结构力学及其应用,1990,7(2):104-105.
[3]陆鑫森.高等结构动力学[M].上海:上海交通大学出版社,1992
[4]曹宏,李秋胜,李桂青.工程结构抗震[M].北京:气象出版社,1993.
[5]王文亮.结构动力学[M].上海:复旦大学出版社,1993
[6]B.r.科列涅夫.地震动下工程结构物的动力计算(沈聚敏,高伯扬编译)[M].北京:地震出版社, 1994.
[7]龚耀清,包世华,龙驭球.半无限大弹性地基上变截面筒中筒高层建筑结构的自由振动[J]工程力 学,1999,16(3):7-14.
[8] Ray W. Clough Joseph Penzien Dynamics of structures[M]. New York: McGraw-Hill Inc, 1993.
[9] Toru Takerchi David C. S. Lee and Isso Kimura.Tube action and construction of Star-shaped 80 storyskyscraper[C]. In: N.K.Srivastava eds. Structural Engineering World Wide, San Francisco, USA:ElsevierScience Ltd, 1998: T105-1.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心