| 上海世博会中国馆抗震分析与振动台模型试验研究 |
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| 引用本文： | 蒋欢军,王斌,吕西林,陈云.上海世博会中国馆抗震分析与振动台模型试验研究[J].土木建筑与环境工程,2011,33(3):13-18. |
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| 作者姓名： | 蒋欢军 王斌 吕西林 陈云 |
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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;同济大学 土木工程防灾国家重点实验室,上海 200092;同济大学 土木工程防灾国家重点实验室,上海 200092;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： | 国家自然科学基金项目(51078272，51021140006)；上海市教委科研创新项目(09ZZ32)；北京市科技计划重点项目(D09050600370000) |
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| 摘 要： | 2010年上海世博会中国馆建筑造型和结构体系独特,主体结构为4个钢筋混凝土筒体加组合楼盖,筒体间楼盖向上层层展开出挑,呈四棱台斗冠状.倒梯形的建筑造型使上部楼层的转动惯量增大,导致结构的第一振型为扭转振型,不满足现行高层结构设计规范的要求.为了研究该结构的抗震性能,检验和改进结构设计,利用有限元程序ANSYS对整体结构...
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| 关 键 词： | 扭转振型 抗震分析 模拟地震振动台试验 地震损伤 |
| 收稿时间： | 2010/12/1 0:00:00 |
Seismic Analysis and Shaking Table Test of China Pavilion for EXPO 2010 Shanghai |
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| JIANG Huan-jun,WANG Bin,LU Xi-lin and CHEN Yun.Seismic Analysis and Shaking Table Test of China Pavilion for EXPO 2010 Shanghai[J].土木建筑与环境工程,2011,33(3):13-18. |
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| Authors: | JIANG Huan-jun WANG Bin LU Xi-lin and CHEN Yun |
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| Affiliation: | State Key laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P.R. China;State Key laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P.R. China;State Key laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P.R. China;State Key laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P.R. China |
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| Abstract: | China Pavilion for Expo 2010 Shanghai is designed with peculiar style and special structural system. The main structure is composed of four concrete tubes with steel-concrete composite floors. It is designed with a shape of inverted trapezoid in elevation. The fundamental vibration mode of this structure is a torsional mode due to the special shape with greater moment of inertia in upper floor, which exceeds the limit value stipulated in Chinese code. The seismic analysis of prototype is carried out by ANSYS program to evaluate its overall seismic performance and improve the structural design. At the same time, shaking table tests of a 1/27-scale structural model are conducted. It is faund that although the first mode is torsional, the torsional responses are not so large, which agrees well with the results of shaking table tests. Both the test results and calculation results demonstrate that the designed structural system satisfies the seismic damage patterns and meets the pre-defined performance objectives. Based on the test results, suggestions for improving design are also put forward. |
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| Keywords: | torsional mode seismic analysis shaking table test seismic damage |
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