摘要
以某热电厂大跨度干煤棚工程项目为背景,根据工程设计和实验研究的需要,对干煤棚这种建筑结构进行了风洞试验.文献中考虑了风向角、堆煤等对风载体型系数的影响,本文还考虑了仰角对干煤棚体型系数的影响.经过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.考虑到干煤棚形状和不同工况的影响,分别将其表面划分为7段区域和77块区域,得到不利工况下干煤棚表面的分块体型系数,与规范取值对比,并得出结论,其结果可供设计参考.
Wind tunnel experiment was carried out based on the dry-coal-sheds of the power plant according to the engineering design and experimental study＇s need.The impact of wind direction and coal piles on structural shape coefficient were taken into account as well as the elevation-angle of the dry coal shed.By data analysis,extremum of shape coefficient were obtained.The surface of the dry-coal-shed was divided into seven areas and seventy-seven areas according to the shape of the dry-coal-shed and different load cases.Shape coefficient of the dry-coal-shed was given and compared with the values of standardized.Some conclusion were obtained.The experiment may supply the design reference for dry coal shed expanding or similar project.
出处
《空间结构》
CSCD
北大核心
2010年第4期55-59,共5页
Spatial Structures
关键词
干煤棚
风荷载
风洞试验
体型系数
dry-coal-shed
wind load
wind tunnel experiment
shape coefficient
