Wind Effects on the Tallest Building in Hong Kong: Field Monitoring, Wind Tunnel Testing and Numerical Modeling

Project: Research

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Two International Finance Center (2IFC) has a height of approximately 420 m and is currently the tallest building in Hong Kong. This project aims to investigate the wind effects on the super-tall building through field monitoring, wind tunnel testing, and numerical simulation. The study will be conducted in three closely related phases. The first will involve the development of the researchers' on-going field measurement program, for which a large amount of instrumentation work has already been completed. This program needs to be expanded, with the support of this grant, to produce a highly valuable set of field data that represents the real-time wind loading and wind-induced responses of the high-rise structure. The information is particularly relevant to the wind-resistant design of tall buildings in cities in the Asia Pacific region that have similar meteorological systems to those in Hong Kong. In Phase 2, a series of wind tunnel tests, including pressure measurements, a force balance model test, and an aeroelastic model test, will be conducted to investigate the wind effects on the tall building. Moreover, the field measurements will be compared with the model test results for verification of the wind tunnel test techniques. Phase 3 will involve the three-dimensional simulation of the wind loading and wind-induced responses of the tall building via computational fluid dynamics (CFD) approaches. The feedback from the field measurements and the wind tunnel test results will be very useful to verify and improve the CFD numerical methods.The field measurements will fundamentally improve our knowledge of wind loading and the response of super-tall buildings located in typhoon-prone areas. At the same time, the field data can be used to evaluate the accuracy of the model test results and the adequacy of the techniques used in the wind tunnel tests. The experimental results will also provide essential information to improve the CFD simulation techniques and develop design standards and guidelines for tall buildings. Furthermore, the model tests and numerical simulation will generate detailed and additional results that are not available from the measurements, thus improving our understanding of the wind effects on super-tall buildings. The results generated from this comprehensive project are expected to be very useful to the wind engineering community, and the outcome of the combined experimental and numerical study will be of considerable interest and practical use to engineers and researchers who are involved in the wind-resistant design of super-tall buildings.


Project number9041498
Grant typeGRF
Effective start/end date1/01/1019/03/14