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[1] Lu Zheng, Yan Deyu, Zhou Mengyao, et al. Vulnerability analysis of a complex super high-rise connected structure under the combined action of earthquake and wind [J]. Journal of Southeast University (English Edition), 2024, 40 (1): 13-23. [doi:10.3969/j.issn.1003-7985.2024.01.002]
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Vulnerability analysis of a complex super high-rise connected structure under the combined action of earthquake and wind()
地震和风耦合作用下超高层连体结构易损性分析
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
40
Issue:
2024 1
Page:
13-23
Research Field:
Civil Engineering
Publishing date:
2024-03-20

Info

Title:
Vulnerability analysis of a complex super high-rise connected structure under the combined action of earthquake and wind
地震和风耦合作用下超高层连体结构易损性分析
Author(s):
Lu Zheng1 2 Yan Deyu1 Zhou Mengyao1 Zhao Xin3 Zhao Yiqing4
1Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, China
2State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
3Tongji Architectural Design(Group)Co., Ltd., Shanghai 200092, China
4China Overseas Development Group Co., Ltd., Shenzhen 518048, China
鲁正1 2 严德裕1 周梦瑶1 赵昕3 赵一青4
1同济大学结构防灾减灾工程系, 上海 200092; 2同济大学土木工程防灾减灾全国重点实验室, 上海 200092; 3同济大学建筑设计研究院(集团)有限公司, 上海 200092; 4中海企业发展集团有限公司, 深圳 518048
Keywords:
super high-rise connected structure multi-hazard vulnerability earthquake wind load combined action Suzhou Supertall
超高层 连体结构 多灾害 易损性 地震 风荷载 耦合作用 苏州超塔
PACS:
TU973.2
DOI:
10.3969/j.issn.1003-7985.2024.01.002
Abstract:
To explore the design and safety performance of super high-rise connected structures under the combined action of multiple disasters, taking Suzhou Supertall as an example, a vulnerability analysis is conducted under the combined earthquake-wind actions. First, the structure’s finite element model is established. Then, vulnerability assessments are conducted under individual earthquake and combined earthquake-wind actions. Finally, the response law of the structure is obtained. Results indicate that when exposed to combined earthquake-wind actions, the structure’s vulnerability increases with the earthquake and wind intensities, and the seismic action dominates structural damage. The probabilities of moderate, severe, and collapse damages are higher under the combined earthquake-wind actions than those under individual earthquakes. When the wind speed reaches 40 m/s, the probabilities of the structure reaching three failure states under rare earthquakes are 99.77%, 91.56%, and 46.54%, respectively, representing an increase of 1.11%, 10.73% and 14.65% compared with those under rare earthquakes alone and an increase of 0.27%, 6.26% and 14.34% compared with those of a typical high-rise connected structure under the same combined action of disasters.
为探究超高层连体结构在多灾害耦合作用下的设计与安全性能, 以苏州超塔为例, 开展地震和风耦合作用下的多灾害易损性分析.根据设计资料建立结构有限元模型, 分别开展结构在地震作用下以及地震和风耦合作用下的易损性分析, 探究结构在多灾害耦合作用下的响应规律.结果表明, 地震和风耦合作用下结构联合易损性随着地震动和风荷载强度的增大而增加, 且地震动对结构的破坏占主导作用.地震与风耦合作用时结构达到中等破坏、严重破坏和倒塌破坏的概率均比仅地震作用时有所增加.当风速达到40 m/s时, 结构在罕遇地震下达到3种破坏状态的概率分别为99.77%、91.56%和46.54%, 相比于仅罕遇地震作用下分别提高了1.11%、10.73%和14.65%, 相比于一般高层连体结构在同样的灾害耦合作用下分别提高了0.27%、6.26%和14.34%.

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Memo

Memo:
Biography: Lu Zheng(1982—), male, doctor, professor, luzheng111@tongji.edu.cn.
Foundation item: National Key Research and Development Program of China(No. 2022YFC3803000).
Citation: Lu Zheng, Yan Deyu, Zhou Mengyao, et al. Vulnerability analysis of a complex super high-rise connected structure under the combined action of earthquake and wind[J].Journal of Southeast University(English Edition), 2024, 40(1):13-23.DOI:10.3969/j.issn.1003-7985.2024.01.002.
Last Update: 2024-03-20