| 双塔连体高层混合结构抗震性能研究 |
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| 引用本文： | 周颖,吕西林,卢文胜,陈林之,黄志华.双塔连体高层混合结构抗震性能研究[J].地震工程与工程振动,2008,28(5). |
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| 作者姓名： | 周颖 吕西林 卢文胜 陈林之 黄志华 |
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| 作者单位： | 同济大学,土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金，上海市教育发展基金会晨光计划 |
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| 摘 要： | 外钢框架-混凝土核心筒结构体系被认为是适合我国国情的高层建筑结构体系之一,我国已有多个采用这种结构体系的单塔楼工程实例,但对双塔连体高层混合结构的研究较少。本文针对上海国际设计中心不等高双塔连体混合结构,进行了7度多遇地震、基本烈度、罕遇地震和8度罕遇地震阶段的模拟地震振动台试验研究,得到了结构的破坏模式,并对模型结构和原型结构的动力反应进行了详细的分析,最后提出了此类结构设计的一些建议。研究表明,高位连体的竖向地震反应比较明显,设计中应适当考虑动力放大效应;在各水准地震作用下结构整体变形均呈现弯曲型;主塔楼核心筒在中震下可以保证"不坏",但结构小震下的层间位移略超过规范限值。
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| 关 键 词： | 钢框架-混凝土核心筒结构 混合结构 连体 振动台试验 动力反应 |
Seismic performance of a multi tower hybrid tall building |
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| ZHOU Ying,L Xilin,LU Wensheng,CHEN Linzhi,HUANG Zhihua.Seismic performance of a multi tower hybrid tall building[J].Earthquake Engineering and Engineering Vibration,2008,28(5). |
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| Authors: | ZHOU Ying L Xilin LU Wensheng CHEN Linzhi HUANG Zhihua |
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| Institution: | ZHOU Ying,L(U) Xilin,LU Wensheng,CHEN Linzhi,HUANG Zhihua |
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| Abstract: | It is recognized that reinforced concrete core wall-steel frame structure(RCC-SF) is one of the efficient hybrid systems to be used in China.There are many cases of one-tower RCC-SF structures,however,little report has been found about multi-tower hybrid system.In this paper,the shaking table model test of such a structure,Shanghai International Design Center(SHIDC),was carried out.The failure mode and the dynamic responses of the model structure and the prototype structure were investigated and suggestions for the design of the same type system were made.It is shown that,the vertical seismic response of the connecting part is so obvious that dynamic effect needs to be considered in the design.The structural displacement bends away from the top of the building.Though the core wall of the major tower keeps elastic under basic earthquake level,the inter-story drift under the frequent level is slightly beyond the code limitation. |
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| Keywords: | RC core wall-steel frame system hybrid structure connecting part shaking table test dynamic response |
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