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b=200(mm)上翼缘宽bt=16(mm)上翼缘厚tbb=350(mm)下翼缘宽bbtt=16(mm)下翼缘厚tthw=1100(mm)腹板净高h0tw=10(mm)腹板厚twh=1132(mm)总高hA=19800(mm)截面面积AS=1.2840E+07(mm3)截面对上翼缘边缘轴的面积矩S=∑Ai*yiy=6.4851E+02(mm)形心主轴到上翼缘边缘的距离y=S/Ayy=4.8349E+02(mm)形心主轴到下翼缘边缘的距离yy=h-yIx=3.7632E+09(mm4)转动惯量Ix=∑(Ix1+Ai*yi^2)Iy=6.7925E+07(mm4)转动惯量Iy=∑(Iy1+Ai*xi^2)ix=4.3596E+02(mm)回转半径ix=sqrt(Ix/A)iy=5.8571E+01(mm)回转半径iy=sqrt(Iy/A)Wx=5.8028E+06(mm3)截面抵抗矩Wx=Ix/b*2Wxy=7.7832E+06(mm3)截面抵抗矩Wx=Ix/bb*2Wy=6.7925E+05(mm3)截面抵抗矩Wy=Iy/t*2Wyy=3.8814E+05(mm3)截面抵抗矩Wy=Iy/tt*2γ=78.5(kN/m3)材料重度γ(钢材为78.5kN/m3)G=1.5543(kN/m)每延米自重G=Aγ工字型截面性质计算
本文标题:%截面几何性质
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