1.恒载 厚 30 × = 厚 20 × = 厚 20 × = 厚 17 × = gk = 2.活载 标准值 kN/㎡ 可变荷载效应起控制作用 γG = 1.2 γQ = 1.2 × = 1.3 × = p=g+q = 4.49 + = 4.49 + = 1.3 kN/㎡ 3. 板的内力计算及配筋 ρmin =0.45 f t/ f y = 0.45 × #### / = Asmin = ρminbh= × 1000 × = mm2 C?(20,25,30,35,40,45,50,55) 混凝土等级 3. 1 板无嵌固 m 板厚 mm 板厚取 mm ly= m lx/ly = 单位板宽弯矩（ KN·m/m） 0.0617 × + × ) = kN.m 0.0428 × + × ) = kN.m kN/㎡荷载设计值 p〞=q/2 = 300 0.19% 140 266.700