Q杆来选择kNN260481max在屋架平面内的计算长度cmlox300屋架平面外的计算长度cmloy300。所需截面面积为242238215481260mmfNA

选择两个不等肢角钢8631002∠长肢水平。截面几何特点223842216825cmcmAcmix771cmiy9743505169771300xλ350460974300yλ另两个节点的下弦杆内力较小但cmloy600故须验算其屋架平面外的长细比3508120974600
fyλ43
支座竖杆截面选择杆轴力kN
N16020
计算长度
cmlloyox200采用两个等肢角钢5632∠组成T型截面截面几何特性228612cmAcmix941cmiy9621501103941200xλ5350x150667962200yλ7560y截面验算22mi
215673061228535020160
fmmNfmmNAN44支座斜杆截面选择杆轴力kNN980309计算长度cmlloyox8252采用两个不等肢角钢8801002∠长肢相拼。截面几何特性288827cmAcmix143cmiy4831505801438252xλ6850x1506724838252yλ7350y截面验算2mi
2153162827886850248702mmNAN45斜杆②③截面选择杆轴力kNN775233
f计算长度cmllox8820812618080cmloy1261所需截面231087215233775cmfNA
选用两个等肢角钢5632∠组成T形截面截面特性228731028612cmcmA
cmix941cmiy962350710794188208xλ3502889621261yλ46竖杆③④截面选择
杆轴力kNN32040计算长度cmllox1218392288080cmloy9228采用两个等肢角钢5502∠组成T形截面。截面几何特性26069cmAcmix531cmiy452150711953112183xλ4380x15049345299228cmyλ5800y47斜杆④⑤截面选择杆轴力kNN247117计算长度cmllox222952868080cmloy5286采用两个等肢角钢5752∠组成T形型截面
f截面几何特性282414cmAcmix332cmiy4331504983322229xλ5650x1505834335286yλ6640y截面验算22mi
2156211414825650177247mmNfmmNAN48斜杆⑤⑥截面选择杆轴力kNN247177计算长度cmllox222952868080cmloy5286所需截面26520215177247mmfNA
采用两个等肢角钢5502∠组成T形型截面截面几何特性2220656069cmcmAcmix531cmiy45235081495312229xλ35091164524286yλ49竖杆⑥⑦截面选择杆轴力kNN32040计算长度cmllox4420732598080cmloy3259采用两个等肢角钢5502∠组成T形截面截面几何特性2235236069cmcmAcmix531cmiy45215061355314207xλ3630x1508105452259yλ5180y
截面验算22mi
21561156
f960363040320mmNfmr