| Multi-hazard performance assessment of a transfer-plate high-rise building |
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| 作者姓名： | 徐幼麟 |
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| 作者单位： | Department of |
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| 基金项目： | Financial Support from Hong Kong PolytechnicUniversity Under Grant No. G-YX76 |
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| 摘 要： | Many urban areas are located in regions of moderate seismicity and are subjected to strong wind. Buildings in these regions are often designed without seismic provisions. As a result, in the event of an earthquake, the potential for damage and loss of lives may not be known. In this paper, the performance of a typical high-rise building with a thick transfer plate (TP), which is one type of building structure commonly found in Hong Kong, is assessed against both earthquake and wind hazards. Seismic- and wind-resistant performance objectives are fi rst reviewed based on relevant codes and design guidelines for high-rise buildings. After a brief introduction of wind-resistant design of the building, various methodologies, including equivalent static load analysis (ESLA), response spectrum analysis (RSA), pushover analysis (POA), linear and nonlinear time-history analysis (LTHA and NTHA), are employed to assess the seismic performance of the building when subjected to frequent earthquakes, design based earthquakes and maximum credible earthquakes. The effects of design wind and seismic action with a common 50-year return period are also compared. The results indicate that most performance objectives can be satisfi ed by the building, but there are some objectives, such as inter-story drift ratio, that cannot be achieved when subjected to the frequent earthquakes. It is concluded that in addition to wind, seismic action may need to be explicitly considered in the design of buildings in regions of moderate seismicity.
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| 关 键 词： | 高层建筑 抗地震能力 建筑设计 缓震性 |
| 收稿时间： | 24 September 2007 |
| 修稿时间： | 10 October 2007 |
Multi-hazard performance assessment of a transfer-plate high-rise building |
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| Xiangming Zhou,Y. L. Xu.Multi-hazard performance assessment of a transfer-plate high-rise building[J].Earthquake Engineering and Engineering Vibration,2007,6(4):371-382. |
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| Authors: | Xiangming Zhou Y L Xu |
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| Institution: | 1. Department of Civil Engineering,School of Engineering,University of Greenwich at Medway,United Kingdom
2. Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Hong Kong,China |
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| Abstract: | Many urban areas are located in regions of moderate seismicity and are subjected to strong wind. Buildings in these regions are often designed without seismic provisions. As a result, in the event of an earthquake, the potential for damage and loss of lives may not be known. In this paper, the performance of a typical high-rise building with a thick transfer plate (TP), which is one type of building structure commonly found in Hong Kong, is assessed against both earthquake and wind hazards. Seismic- and wind-resistant performance objectives are fi rst reviewed based on relevant codes and design guidelines for high-rise buildings. After a brief introduction of wind-resistant design of the building, various methodologies, including equivalent static load analysis (ESLA), response spectrum analysis (RSA), pushover analysis (POA), linear and nonlinear time-history analysis (LTHA and NTHA), are employed to assess the seismic performance of the building when subjected to frequent earthquakes, design based earthquakes and maximum credible earthquakes. The effects of design wind and seismic action with a common 50-year return period are also compared. The results indicate that most performance objectives can be satisfi ed by the building, but there are some objectives, such as inter-story drift ratio, that cannot be achieved when subjected to the frequent earthquakes. It is concluded that in addition to wind, seismic action may need to be explicitly considered in the design of buildings in regions of moderate seismicity. |
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| Keywords: | multi-hazard performance-based design seismic moderate seismicity wind pushover analysis transfer- plate high-rise building |
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