屋顶光伏电站支架强度及屋面载荷计算

200200*****屋顶光伏电站支架强度及屋面载荷计算*****49KW*********0.3m2GB500682001GB5000920012006GB500112010GB500172003GB500182002GB/T3280200731650mm*990mm*50mm27.5m/s20kgTRC0006-1997TR11G W27.5m/s, 30m/s20m4.2C 1.8kg/mmm41*41*225A277C型钢重量:1.8kg/m截面面支架尺寸（咂1）41*41*2安装角度25°材料镀锌截面面积（A）277形心主轴到腹板边缘的距・1.4516E+01形心主轴到翼缘尖的距2.6484E+01离惯性矩k8.3731E+04F1j惯性矩Iy4.5694E+04回转半径IX1.7386E+01回转半径iv1.2844E+01我面抵抗矩WX4.0844E+03截面抵抗矩Wk4.0844E+03截面抵抗矩Wy3.1478E+03截面抵抗矩Wyy1.7254E+031.4516E+012.6484E+01Ix8.3731E+04ly4.5694E+04ix1.7386E+01iy1.2844E+01Wx4.0844E+03Wx4.0844E+03Wy3.1478E+03Wyy1.7254E+034.3GG1=20kg20=400kg 3920N;C G=3920N;WWk=pgzpspzW0Wk: KN/m2Pgz ZPspz 0.84W0 KN/m27.5.1g1.6Pgz=1.6F7.3.1 ps1.475Wk=1.6*0.83*0.84*0.57=0.636KN/m2Sk=pr*S0SkKN/m2SkS0 KN/m2621Mr=0.2S00.35KN/m2Sk=0.2*0.35=0.07KN/m2FEk=1*GeqFEk1 maxGeq5.1.2-210FEk0P3.2P=G+W+SP=3920+636*1.64*0.99*20+70*1.64*0.99*20=26.845KNCC11M1B-CM110.2mq二(26845/4/10.2=657.97N/m 410.2mL=2.073m23500N/cm2/1.5=15666N/cm2(8661.76/15666)<161(4 )E=6.9105N/cm2IM=12cm4207.3cm 207.3/100=2.073cm ;5252x10q=0.2/(1.64x0.99)=0.12KN/m2q=0.08KN/m2q=0.20KN/m2D.4n=50D.420D5.1.3n=50=0.35x1=0.351.0 1.4=1.0x0.20-1.4x0.389=-0.3446KN/m25.310.125mx2.973m=30.1^30.1m2x0.3446KN/^=10.37KN1.22KNx10=12.2KN12.2KN/30.1m=0.405KN/m10 1.22KN 12.2KN, 10.37KN61G1=20kg20=400kgG=136kgG2=125kg10=1250kg2:400+136+1250kg=1786kg10.125