Experimental study of wind loads on gable roofs of low-rise buildings with overhangs

被引：0
作者：
Peng Huang
Ling Tao
Ming Gu
Yong Quan
机构：
[1] Tongji University,State Key Laboratory of Disaster Reduction in Civil Engineering, College of Civil Engineering
来源：
Frontiers of Structural and Civil Engineering | 2018年 / 12卷
关键词：
low-rise building; gable roof; wind loads; wind tunnel test; block pressure coefficient; load code;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Gable roofs with overhangs (eaves) are the common constructions of low-rise buildings on the southeastern coast of China, and they were vulnerable to typhoons from experience. The wind pressure distributions on gable roofs of low-rise buildings are investigated by a series of wind tunnel tests which consist of 99 test cases with various roof pitches, height-depth ratios and width-depth ratios. The block pressure coefficients and worst negative (block) pressure coefficients on different roof regions of low-rise buildings are proposed for the main structure and building envelope, respectively. The effects of roof pitch, height-depth ratio, and width-depth ratio on the pressure coefficients of each region are analyzed in detail. In addition, the pressure coefficients on the roofs for the main structure and building envelope are fitted according to roof pitch, height-depth ratio and width-depth ratio of the low-rise building. Meanwhile, the rationality of the fitting formulas is verified by comparing the fitting results with the codes of different countries. Lastly, the block pressure coefficients and worst negative pressure coefficients are recommended to guide the design of low-rise buildings in typhoon area and act as references for the future’s modification of wind load codes.
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页码：300 / 317
页数：17
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