介绍: 长3.5m,体积28.07m3,重量73.44t,梁高3.639~3.295m,顶板厚度0.2m,底板厚0.607~0.526m,腹板厚0.8m。 ⑴箱梁截面积计算 ① 2#截面 A1=1.8×(0.18+0.45)=1.134 ㎡ A2=0.2×3.1+0.25*0.8=0.82㎡ A3=0.65*[(3.639+3.295)/2-0.2]*2=4.28 ㎡ A4=3.1* (0.526+0.607)/2+0.4*0.2=1.84㎡ A=A1+A2+A3+A4=8.07㎡ ⑵ 2#箱梁段重量计算(钢筋砼按2.6t/m3计) G=AL=8.07*3.5*2.6=73.44M3