两种典型日光温室结构安全性能分析  

Safety Performance Analysis of Two Typical Greenhouse Structure

作　　者：刘丽霞[1] 雷法究 LIU Li-xia LEI Fa-jiu(Gansu Agricultural University,Lanzhou Gansu 730070,Chin)

机构地区：[1]甘肃农业大学,甘肃兰州730070

出　　处：《林业机械与木工设备》2016年第11期18-23,共6页Forestry Machinery & Woodworking Equipment

基　　金：甘肃农业大学2014年SRTP项目

摘　　要：建造日光温室除了要满足作物生长的需要之外,还要满足温室骨架的受力及变形要求。针对甘肃省酒泉市典型的钢拱架和钢桁架两种日光温室结构,利用建筑结构计算理论及ANSYS计算软件对其安全性能进行分析。结果表明,钢拱架结构在两种荷载作用的工况下,其应力薄弱部位处的实际最大应力(除三脚架部位外)均远远超过材料的强度设计应力值,骨架多处部位受力不安全,故该钢拱架不可用;钢桁架结构在两种荷载作用工况下,所有截面处的应力均远远小于材料的强度设计应力值,受力非常安全,故该钢桁架可推广使用且有很大的优化空间。In addition to meeting the needs of the crop growth, sunlight greenhouse construction still needs to meet thegreenhouse skeleton stress and deformation requirements. In view of two typical steel arch and steel truss - based sunlightgreenhouse structures in Jiuquan City,Gansu Province,the architectural structure calculation theory and calculationsoftware ANSYS are used for their safety performance analysis. The result shows that as for the steel arch structure,the actual maximum stress far exceeds the designed strength stress value of materials in the weak stress parts（excluding the tripod part）under two kinds of loads and the stress in several parts of the skeleton is unsafe,so thissteel arch structure can not be used;as for the steel truss structure,the stress all over the cross section is far belowthe designed strength stress value of materials under two kinds of loads, and the stress is safe, so the steel truss structurecan be popularized and has large space for optimization.

关 键 词：温室骨架 ANSYS软件 钢拱架 钢桁架 安全性能 

分 类 号：S625[农业科学—园艺学]