Rain-on-snow surcharge for roof design

被引：0
|
作者：
O'Rourke, M [1 ]
Downey, C [1 ]
机构：
[1] Rensselaer Polytech Inst, Troy, NY 12180 USA
来源：
COLD REGIONS ENGINEERING: PUTTING RESEARCH INTO PRACTICE | 1999年
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An analysis of rain-on-snow loads for building roofs is presented. Surcharge loads on building roofs due to rain-on-snow events are functions of roof geometry, rainfall and snowpack characteristics. The current rain-on-snow surcharge specified by ASCE 7-95 is 5 psf for roofs with a slope less than 1/2 on 12 for locations where the ground snow load p(g) is 20 psf or less. This provision is based to a significant extent upon engineering judgement. A review of rain-on-snow case histories as well as statistical analyses of precipitation data is presented herein. Based upon this new information, simple procedures are suggested for incorporating the effects of rain-on-snow.
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收藏
页码：692 / 703
页数：12
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