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1、說說明明:此此計計算算程程式式要要求求鋁鋁框框受受拉拉邊邊應應位位于于X X軸軸或或Y Y軸軸上上.寬度b高度hFi=b*h矩形形心Xi矩形形心YiIxi=bh3/12C1C1幕幕墻墻33.5 mm5.5 mm184.25 mm216.75 mm2.75 mm464.4633.5 mm5.5 mm184.25 mm255.25 mm2.75 mm464.464 mm185 mm740 mm22 mm92.5 mm2110541.674 mm185 mm740 mm270 mm92.5 mm2110541.6772 mm5.4 mm388.8 mm236 mm179.6 mm944.784 mm2、20 mm80 mm224 mm169.6 mm2666.674 mm20 mm80 mm248 mm169.6 mm2666.674 mm20 mm80 mm262 mm15.5 mm2666.674 mm20 mm80 mm272 mm15.5 mm2666.6724 mm4 mm96 mm236 mm17.5 mm128.00復合截面A=Fi2653.3 mm2復合截面靜矩:Sx=Fi*Yi239037.86mm3Sy=Fi*Xi100478.80mm3復合截面形心位置:Xc=Sy/A37.87mmYc=Sx/A90.09mm各個矩形的慣性矩:Ix=Ixi+(Yc-Yi)2*FiIy=I3、yi+(Xc-Xi)2*Fi1405999.21mm499411.84mm41405999.21mm472890.61mm42114836.89mm4953079.34mm42114836.89mm4764945.92mm43115971.99mm4169320.28mm4-3694.07mm415495.42mm4508404.01mm48317.04mm4447769.37mm446689.65mm4447769.37mm493298.66mm4505992.39mm44943.48mm4復合截面慣性矩:Ixc=12,063,885.26mm4Iyc=2,228,392.23mm4復合截面抵抗矩:Wxc=133,908.11mm3Wyc=58,844.19mm3Iyi=hb3/12mm417231.21mm4mm417231.21mm4mm4986.67mm4mm4986.67mm4mm4167961.60mm4mm4106.67mm4mm4106.67mm4mm4106.67mm4mm4106.67mm4mm44608.00mm4