首页 | 本学科首页   官方微博 | 高级检索  
     检索      

L形平面低矮房屋屋面的风荷载特性
引用本文:陶玲,黄鹏,顾明,全涌.L形平面低矮房屋屋面的风荷载特性[J].同济大学学报(自然科学版),2011,39(11):1586-1591.
作者姓名:陶玲  黄鹏  顾明  全涌
作者单位:同济大学 土木工程防灾国家重点实验室,上海,200092
基金项目:国家自然科学基金项目(50708082),上海市浦江人才计划(D类)
摘    要:通过L形平面低矮房屋在同济大学TJ2风洞进行的刚性模型测压试验,首先对其屋面的风压时程概率分布进行了讨论,试验结果表明,屋面大部分区域的风压时程偏度较大,概率分布与三参数Gamma分布较为吻合,其极值的估算更适合用“SadekSimiu法”,且相比而言,传统的高斯方法偏于不安全.继而对翼长、坡度及组合屋面形式对屋面风荷载特性的影响进行了研究,试验结果显示,翼长的增加,坡度的减小均会加剧屋面的平均负压和最不利负压;而屋面由两双坡组合变为双坡、四坡组合后,屋面的平均负压和最不利负压都有大幅度的减小,从而得出双坡、四坡组合屋面的L形平面房屋比两双坡组合屋面更有利于抗风的结论.

关 键 词:L形平面    低矮房屋    风荷载    偏度    翼长    屋面组合形式
收稿时间:9/9/2010 12:30:03 PM
修稿时间:7/31/2011 7:29:28 PM

Wind Loading Characteristic of Low rise Buildings Roof with L Shape Plan
TAO LingHUANG Peng,GU Ming,QUAN Yong,HUANG Peng,GU MingQ and UAN Yong.Wind Loading Characteristic of Low rise Buildings Roof with L Shape Plan[J].Journal of Tongji University(Natural Science),2011,39(11):1586-1591.
Authors:TAO LingHUANG Peng  GU Ming  QUAN Yong  HUANG Peng  GU MingQ and UAN Yong
Institution:State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China
Abstract:Rigid model pressure measurement tests of low-rise buildings with L-shape plan were conducted in TJ-2 wind tunnel laboratory,the pressure time histories probability distribution was discussed firstly.The experimental results reveal that the skewnesses of most regions pressure time histories of the roof are large,and the probability distribution is well fitted by the three-parameter gamma distribution,consequently,the Sadek-Simiu procedure is preferred to estimate the peak pressure coefficients,and compared ...
Keywords:L-shape plan  low-rise buildings  wind loads  skewness  wing length  roof combination form  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《同济大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《同济大学学报(自然科学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号