摘要
以干煤棚网壳结构为研究对象,根据工程设计和试验研究的需要,对干煤棚建筑结构进行了风洞试验。考虑风向角、仰角和堆煤等对干煤棚风载体型系数的影响,经对不同工况下各测点的体型系数分析,得出体型系数的极值。考虑到干煤棚结构形状和不同工况的影响,分别将其表面划分为7段区域和21块区域,得到不同工况下网壳结构表面的分块体型系数,横向端部体型系数的正、负值偏大,建议在两端部加肋或增大杆件截面尺寸,并注意加强屋面与干煤棚的连接,以适应不同风向的变化,其结果可供设计参考。
It has been finished wind tunnel test based on the latticed shell according to the engineering design and experimental study＇s need.By taking account of the impacts of wind direction,coal piles and the elevation-angle on the shape coefficient of the dry coal shed,extrema of shape coefficient obtained.By data analysis,the surface of the latticed shell has been divided into seven areas that is named the first division method and twenty-one areas that is named the second division method according to the shape of the latticed shell and different loads.Shape coefficients of the sections of the latticed shell are given.Shape coefficient of lateral end is too large,it is proposed that rib should be added on both ends or the section size should be increased;and attention is also paid to strengthening the connection of the roof and dry coal shed to adapt to different changes in wind direction.The test may supply the design reference for dry coal shed expanding or similar projects.
出处
《工业建筑》
CSCD
北大核心
2011年第7期120-124,共5页
Industrial Construction
关键词
干煤棚结构
风荷载
风洞试验
体型系数
dry coal shed
wind load
wind tunnel test
shape coefficient
