混凝土结构与砌体结构设计课程设计

载面h0=650-70=580mm。Р 各截面配筋计算见下表。Р正截面抗弯承载力计算Р截面Р1РBР2Р弯矩值(KN·m)Р200.77Р-225.15Р107.67Р-32.78РV0×b/2Р(KN·m)Р(57.01+70.2)×=28.9Р弯矩设计值M(KN·m)Р200.77Р107.67Р-32.78Р=0.019Р=0.164Р=0.010Р=0.025Р0.019Р0.180Р0.010Р0.025Р0.991Р0.91Р0.995Р0.987Р=948Р=1042Р=493Р=153Р实配钢筋Р2C20+2c20(弯)Р4C20(直)Р2C20(直)Р2C14Р实配AS(mm2)Р1256Р1256Р628Р402Р 4.斜截面抗剪承载力计算Р 主梁斜截面抗剪承载力计算结果见下表。Р斜截面抗剪承载力计算Р截面РAРB截面左РB截面右Р剪力V(N)Р103.53×103Р165.83×103Р144.08×103Р0.25bh0fc(N)Р0.25×250×610×14.3=545.2×103>VAР0.25×250×580×14.3=518.4×103>VBlР518.4×103>VBrР0.7ftbh0(N)Р0.7×1.43×250×610 =152.7×103>VAР0.7×1.43×250×580 =145.2×103>VBlР145.2×103>VBrР配双肢箍筋Р2Φ6,S=180<SmaxР =250Р2Φ6,S=180Р2Φ6,S=180РVCS=0.7ftbh0Р+fyvh0Р构造配筋满足最小配筋率Р构造配筋满足最小配筋率Р构造配筋满足最小配筋率Р需设弯起筋РASV=Р(mm2)Р实配弯起筋面积(mm2)Р 5.绘制主梁模板及配筋图Р 按计算结果及构造要求,作出主梁弯矩包络图及材料图,并据此绘出主梁模板及配筋施工图如下图所示。Р主梁配筋图