关于彩钢板活动房轻钢桁架结构几种情况计算分析二O一二年十二月A本文主要工作：(1)确定彩钢板活动房轻钢桁架计算荷载取值；(2)按现行彩钢板房实际构件尺寸（立柱80×80×2.5）（情况一），进行承载力验算。(3)将立柱增大至100×100×3后（情况二），进行承载力验算。(4)现行彩钢板房结构计算立柱不满足规范要求，维持立柱截面不变，在桁架跨中增加一根80×80×2.5的立柱后（情况三），进行承载力计算。B本文主要结论：(1)按现行彩钢板房构件尺寸（立柱80×80×2.5）进行承载力验算（情况一），桁架梁变形、应力基本满足要求，立柱应力不满足要求。立柱强度及稳定性不满足要求。(2)立柱增大至100×100×3后进行承载力验算（情况二），桁架梁、柱变形、应力均基本满足要求。构件强度及稳定性基本满足要求。(3)维持立柱截面不变，在桁架跨中增加一根80×80×2.5的立柱后进行承载力验算（情况三），桁架梁、柱变形、应力均基本满足要求。构件强度及稳定性基本满足要求。IC计算结果汇总：荷载参数最大值情况一情况二情况三桁架梁(mm)/(MPa)立柱(mm)/(MPa)桁架梁(mm)/(MPa)立柱(mm)/(MPa)桁架梁(mm)/(MPa)立柱(mm)/(MPa)恒荷载（DL）变形-6.3/-5.9/-1.0/应力73.3-70.471.0-60.9-38.4-30.8活荷载（LL）变形-6.1/-5.7/-1.7/应力71.1-74.0-69.4-61.8-56.1-39.6正吹风荷载[W(+X)]变形-0.1/-0.1/-0.1/应力53.3115.227.462.0-74.288.0负吹风荷载[W(-X)]变形0.1/0.1/0/应力47.5117.1-24.662.5-74.389.2荷载组合1（ZC1）变形-16.1/-15.2/-3.6/应力187.3-188.1181.6-159.5-124.5-90.9荷载组合2（ZC2）变形-7.5/-7.1/-1.3/应力87.5-220.384.9-137.1-131.2-143.9荷载组合3（ZC3）变形-7.5/-7.1/-1.2/应力86.9-199.184.2-132.1-125.6-157.2荷载组合4（ZC4）变形-15.2/-14.3/-3.4/应力177.0-287.6171.7-194.5-151.3-175.7荷载组合5（ZC5）变形-15.2/-14.3/-3.4/应力176.4-243.0171.9-173.8-151.2-190.5II目录1彩钢板活动房概况...............................................................................................................12计算依据..............................................................................................................................13活动房计算相关取值...........................................................................................................14活动房计算荷载计算...........................................................................................................24.1楼面恒荷载..............................................................................................................24.2楼面活荷载..............................................................................................................24.3风荷载计算..............................................................................................................24.4荷载组合..................................................................................................................25情况一计算...........................................................................................................................35.1计算软件..................................................................................................................35.2计算模型..................................................................................................................35.3模型构件截面..........................................................................................................45.4荷载施加..................................................................................................................45.5荷载组合.....................................................................................................
