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GoogleSketchUpIGoogleSketchUpAUTOCAD3dsmaxmayasoftimageUGCATIAPRO/EsketchupautocadGoogleSketchUpsketchupSketchupsketchup8.0I3040202025b2*2025cm3I40a2*24.8,200φd=6mm2*68.40.251=40.251001000KN10201000=50KN20:+1.37.5KNM50KN25bIX=3619.5cm4WX=289.6cm3SX=175.3cm331.33kg/md=9mm2.xWM=δ=6337.510129.49145MPa289.610×=×3.33max4*50*10*173.5*1026.6385MPa*3619.5*10*9XXQSIdτ===4.,:Ymax=6.81pl3/(384EI).:Ymax(mm).p(kn).E,,E=2100000N/mm2.I,(mm4).Ymax=33546.81*100*3000*106.29384*2.1*10*3619.5*10=mm5.74003000=mm.20cm*20cm*1cm2.42.42.41.112.5KNM125KNI40aIX=21714cm4WX=1085.7cm3SX=631.2cm367.56kg/md=10.5mm2.xWM=δ=63112.51096.551087.510×=×145MPa3.33max4*125*10*631.2*10τ74.61*21714*10*10.5XXQSId===MPa85MPa4.,:Ymax=6.81pl3/(384EI).:Ymax(mm).p(kn).E,,E=2100000N/mm2.I,(mm4).Ymax=33546.81*250*2500*101.52384*2.1*10*21714*10=mm94003600=mm100020*2*3*31.33*10/10002*2*5*67.56*10/1000261.364KN++=cm20φA=3656)-(422=dDπmm23261.36*1071.493656MPaδ==140MPai=2289.64Dd+=l8400===93.75i89.6λ0.521φ=71.480.521*140=72.94MPa.65*6.8m0.8m0.3m4%100KPaC204*5.8*0.530cm*30cm121googlesketchup1233D4AutoCAD5AutoCADRevit,3DMAXPIRANESIDWG,DXF,JPG,3DSAutoCADARCHICAD678910234567---