高层建筑表面风压干扰效应研究

发布时间：2018-01-12 10:27

本文关键词：高层建筑表面风压干扰效应研究　出处：《地震工程与工程振动》2015年06期 　论文类型：期刊论文

【摘要】：基于刚性模型测压实验,研究了不同干扰条件下高层建筑表面风压特性。结果表明:(1)单体建筑表面迎风面风压系数均为正值,其余各面均为负值,且迎风面位于中上部的测点平均风压系数较大;(2)受到来流方向周边建筑的遮挡效应,迎风面转为负压;(3)周边建筑的干扰,使得表面脉动风压系数大于单体工况;(4)上风向周边建筑的干扰效应比下风向更为明显。获得的结果可以为此结构设计提供风荷载,同时也为其他建筑的抗风设计和风洞实验提供技术参考。
[Abstract]:Based on the rigid model pressure measurement experiment, the wind pressure characteristics of high-rise building surface under different disturbance conditions are studied. The results show that the windward wind pressure coefficients of the single building surface are all positive and the other surfaces are negative. The mean wind pressure coefficient of the measuring points located in the middle and upper part of the windward surface is large. (2) by the blocking effect of the surrounding buildings in the direction of the incoming flow, the upwind surface becomes negative pressure; (3) the disturbance of the surrounding buildings makes the wind pressure coefficient of the surface pulsation larger than the working condition of the single unit; (4) the disturbance effect of the upper wind direction is more obvious than that of the lower wind direction. The results can provide the wind load for the structural design, and also provide the technical reference for the wind resistant design and wind tunnel experiment of other buildings.
【作者单位】：长沙理工大学土木与建筑学院;湖南大学建筑安全与节能教育部重点实验室;济南高新控股集团有限公司;
【基金】：国家自然科学基金资助项目(51408062,91215302,51208067) 湖南省创新平台与人才计划项目(2015RS4050) 中国博士后基金(2015M572238) 湖南省教育厅项目(15C0054) 长沙理工大学桥梁工程安全控制省部共建教育部重点实验室开放基金(13KB01);长沙理工大学土木工程湖南省优势特色重点学科创新性项目~~
【分类号】：TU973.213
【正文快照】： effect引言社会的迅速发展,人们生活水平的不断提高,越来越多的公司投资于开发建设集商务、酒店、办公、居住、娱乐等多功能于一体的综合性建筑群。这些建筑群通常其附近建筑物较密集,其风效应比较复杂。1965年英国渡桥电厂的8个冷却塔中位于第2排的3个塔在风速不太大的情况下

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