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1.恒載 厚 30 × = 厚 20 × = 厚 20 × = 厚 17 × = gk = 2.活載 標(biāo)準(zhǔn)值 kN/㎡ 可變荷載效應(yīng)起控制作用 γG = 1.2 γQ = 1.2 × = 1.3 × = p=g+q = 4.49 + = 4.49 + = 1.3 kN/㎡ 3. 板的內(nèi)力計(jì)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) 混凝土等級(jí) 3. 1 板無嵌固 m 板厚 mm 板厚取 mm ly= m lx/ly = 單位板寬彎矩( KN·m/m) 0.0617 × + × ) = kN.m 0.0428 × + × ) = kN.m kN/㎡荷載設(shè)計(jì)值 p〞=q/2 = 300 0.19% 140 266.700
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1.恒載 厚 30 × = 厚 20 × = 厚 25 × = 厚 17 × = gk = 2.活載 標(biāo)準(zhǔn)值 k N/㎡ 可變荷載效應(yīng) 起控制作用 γG = 1.2 γQ = 1.2 × = 1.3 × = p= g+ 5.39 + = 5.39 + = 1.3 k N 3. 板的內(nèi)力計(jì) 算及配筋 ρ min 0.45 × #### / = As mi × 1000 × = m m 2 C?(20,25,3 0,35,40,45, 3. 1 板無嵌固 m 板厚 m m m m ly = m lx/ly =3 75 一、板的荷載計(jì)算 C = 25 HRB 1.3 3 鋼筋混凝土結(jié)構(gòu)雙向板配筋簡(jiǎn)易計(jì)算 335 HRB(235,335,400) 縱筋強(qiáng)度等級(jí) 0.15 0.255 kN/㎡0.015 鋼筋混凝土板 0.090 0.400水泥砂漿抹面 大理石裝飾面 20 150 2 kN/㎡4.