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Monitoring of wind effects on an instrumented low‐rise building during the landfall of a severe tropical storm
Author(s) -
Li Q.S.,
Wang Y.J.,
Li J.C.
Publication year - 2017
Publication title -
structural control and health monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.587
H-Index - 62
eISSN - 1545-2263
pISSN - 1545-2255
DOI - 10.1002/stc.1917
Subject(s) - tropical cyclone , maximum sustained wind , storm , cyclone (programming language) , meteorology , environmental science , landfall , low rise , wind speed , vortex , conical surface , tropical cyclone scales , tropical cyclone rainfall forecasting , climatology , atmospheric sciences , wind shear , geology , engineering , wind gradient , geography , structural engineering , mechanical engineering , field programmable gate array , embedded system
Summary Tropical cyclone‐induced disasters cause significant economic losses and heavy causalities every year. Most of the casualties were caused by low‐rise buildings collapsing. This study aims to investigate the characteristics of tropical cyclone‐generated winds and evaluate the wind effects on a typical low‐rise building under tropical cyclone conditions through field measurements. In‐situ monitoring was conducted on a full‐scale low‐rise building during the landfall of severe tropical storm Rumbia in 2013. Both the wind velocity field around and the surface pressures on the building were recorded during the storm. Characteristics of wind velocity field near ground during the windstorm were analyzed and compared with the specifications in the load code of China. Furthermore, when the wind approached in oblique directions, the windward roof corner suffered from the worst suctions under conical vortex. It was found that the maximum shape factors under the oblique winds were significantly larger than those specified in the load code. Moreover, probability density distributions of surface pressures induced by conical vortex were found to deviate from the Gaussian distribution. The outcomes of this study are expected to be of practical and imperative use to the wind‐resistant design of low‐rise buildings in tropical cyclone‐prone regions. Copyright © 2016 John Wiley & Sons, Ltd.