Wind Pressures on Flat Roofs with Parapets
Wind Pressures on Flat Roofs with Parapets
复制标题
带女儿墙的平屋顶的风压
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
A. Baskaran
中科院分区：
文献类型：
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作者：
T. Stathopoulos;A. Baskaran
过去没有详细研究过女儿墙对平屋顶风荷载的影响。本文是指在最近的一项研究中获得的实验数据，风的影响，各种平屋顶与女儿墙时，暴露于模拟大气边界层流（开放的国家和城市曝光）。研究的几何参数包括建筑物高度（12、24、48、96和145 m）和女儿墙高度（0 - 3 m）对各种风向（0°、30°、45°、60°和90°）下局部和区域平均屋顶压力的影响。结果表明，女儿墙一般减少高吸力的屋顶边缘，并可能略有增加吸力的内部地区的屋顶。然而，屋顶角吸力在低女儿墙高度时显著增加。这与现行美国国家标准协会（ANSI）关于女儿墙对屋顶吸力影响的规定形成对比。建议将研究结果纳入风力发电站。
The effect of parapets on the wind loading of flat roofs has not been examined in detail in the past. This paper refers to the experimental data obtained in a recent study of the effects of wind on a variety of flat roofs with and without parapets when exposed to simulated atmospheric boundary layer flows (open country and urban exposure). Geometrical parameters examined include the effect of building height (12, 24, 48, 96, and 145 m) and parapet height (0‐3 m) on both local and area‐averaged roof pressures for a variety of wind directions (0°, 30°, 45°, 60°, and 90°). Results show that parapets generally reduce the high suctions on roof edges and may slightly increase the suctions on the interior areas of the roof. Roof‐corner suctions, however, increase significantly for low parapet heights. This is in contrast to the current American National Standards Institute (ANSI) provisions for the effects of parapets on roof suctions. Suggestions for the incorporation of the results of the study into wind stand...