| 上海广播电视塔桩基承台水平地震反应分析 |
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| 引用本文： | 曹国敖,俞载道.上海广播电视塔桩基承台水平地震反应分析[J].同济大学学报(自然科学版),1994,22(3):263-273. |
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| 作者姓名： | 曹国敖 俞载道 |
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| 作者单位： | 同济大学结构理论研究所 |
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| 摘 要： | 分析了在桩尖处地震动输入下上海广播电视塔－群桩－土相互作用体系的桩承台水平地震反应问题。对群桩－地基土相互作用分析，采用了较为简便而实用的三维波动方程解的半解析方法的结果。在分析桩－土－承台体系的动力特性时，将承台以上的结构简化成一个动力等效的单自由度体系。最后给出了承台水平地震反应的时程曲线，作为上部结构地震反应分析时的有效地震输入。
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| 关 键 词： | 桩基 电视塔 承台 地震反应 |
Horizontal Earthquake Response Analysis of Pile-Piled Foundation mat of Shanghai TV Tower |
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| Cao Guoao, Yu Zaidao, Zha Jinxing.Horizontal Earthquake Response Analysis of Pile-Piled Foundation mat of Shanghai TV Tower[J].Journal of Tongji University(Natural Science),1994,22(3):263-273. |
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| Authors: | Cao Guoao Yu Zaidao Zha Jinxing |
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| Abstract: | In this paper the Horizontal response of the pile-piled foundation mat of Shanghai TV Tower as a soil-pile group-structure interaction system subjected to earthquake excitation at pile tip is analysed. To analyze the soil-pile group interaction, the conveniet and practical solutions of three dimensional wave motion equations of soil medium based on semi-analytical technique are adopted.To analyze the dynamic behavior of pile-soil-piled foundation mat system, the superstructure is simplified as a dynamically equivalent SDOF system. Finally, the time-history of the horizontal earthquake response of the piled foundation mat has been worked out as earthquake input for the dynamic analysis of the superstructure. |
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| Keywords: | TV Tower Pile-soil-structure interaction Horizontal response of piled foundation mat |
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