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City-Scale Typhoon Hazard Analysis and Field Monitoring of Wind Effects on Skyscrapers during Super Typhoon Mangkhut
| 题名： | City-Scale Typhoon Hazard Analysis and Field Monitoring of Wind Effects on Skyscrapers during Super Typhoon Mangkhut |
| 正文语种： | eng |
| 作者： | Li, Q. S.;He, J. Y.;Zhou, K.;Li, X.;Chan, P. W.;Li, L. |
| 作者单位： | City Univ Hong Kong Dept Architecture & Civil Engn Kowloon Hong Kong Peoples R China;City Univ Hong Kong Dept Architecture & Civil Engn Kowloon Hong Kong Peoples R China;City Univ Hong Kong Shenzhen Res Inst Architecture & Civil Engn Res Ctr Shenzhen 518057 Peoples R China;Univ Genoa Dept Civil Chem & Environm Engn Via Montallegro 1 I-16145 Genoa Italy;Hong Kong Observ Forecasting & Warning Serv Branch Kowloon Hong Kong Peoples R China;Sun Yat Sen Univ Sch Atmospher Sci Guangzhou 510275 Peoples R China |
| 关键词： | Wind characteristics;Wind effect;Typhoon hazard;Structural dynamics;Skyscraper;Tropical cyclone (TC);Field monitoring;Observation |
| 摘要： | Because of the growing vulnerability of coastal regions to tropical cyclone (TC), or typhoon and hurricane, hazards under climate variability, a thorough knowledge of TC wind characteristics and wind effects on high-rise buildings is highly desired for efficient TC risk mitigation in coastal cities. This paper presents a city-scale typhoon hazard assessment and field monitoring study of wind effects on skyscrapers in a coastal metropolis (Shenzhen, China) during the record-breaking Super Typhoon Mangkhut. Spatiotemporal variation of wind fields over the metropolis was investigated using synchronous wind observations from a network of weather stations and a 356-m-high meteorological tower. Typhoon hazard in the coastal city was assessed through the typhoon hazard map obtained by numerical simulations and validated by wind observations. Wind-induced vibrations and time-varying structural dynamic properties of two representative skyscrapers with heights of 600 and 392 m in Shenzhen were analyzed to determine the dynamic performance and serviceability of the monitored high-rise buildings under violent wind excitations. This integrated city-scale field monitoring and numerical study furthers the understanding of TC wind characteristics in the urban environment, and facilitates the wind-resistant design of future skyscrapers in TC-prone regions. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 4 |
| 页码： | 04022008.1-04022008.17 |
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