关于构件长细比的讨论(1)

(1)111为什么受拉杆件会有长细比限值newx:,?,towerdesign:,,efan:,,,,torcher:,w-shiqi:,,,,,,CuteSer:,,,,,,DYGANGJIEGOU:,:,[][]yuan80858:(),:1),,2),,;12水平构件(梁)要不要满足长细比的要求sxp76:1)()?2),?walkandwalk:1)(),,L0b30L0d25,(),(),2),,;,xqllf:1),(),(),,2),sxp76,,,,?(,)3),,sxp76:,(),()()(),,,,(),,,?:,,,,,,,,130IndustrialConstructionVol38,No5,2008工业建筑2008年第38卷第5期,13平面内长细比的问题defeat8888:,9m,,STS180,?,900mm,??dingding:,,hndkwze:,:1),L2),iwsywdy123:9m,900mm,50~100,450mm,i=450043=1935,=90001935=465180,ruanpeng:,(GB50017-2003),:1),;2),?defeat8888:,,,:1)(GB500017-2003)?2),?3)50kN,,,,:,x,434,x=277,180haitaoz:,:1)?,?2),,?3)(CECS1022002)133:,250,?(GB500017-2003),,14关于长细比zhangqinghe:Q235Q345?zxinqi:,,,,,,bt=03k,,k=40,k=0425+(ba)2a,k=0425c:bt=0951kEc,fy.,fyc,,,DIN1880007AS4100-1990:16fy250~15fy250;45fy250~40fy250;(GB50017):bt(+)235fy,,,Q345235MPa,bt(+)235235zhangqinghe:(GB50011-2001),(12)8Q235120,Q345120235345,Q345,,Q345,,Q235?Q235,Q345,?laymond:,,,Q345Q235,()::131关于构件长细比的讨论(1)