柱的配筋计算

C15C20C25C30C35C40C45C50C55C60C65fc7.29.611.914.316.719.121.223.125.327.529.7ft0.911.11.271.431.571.711.81.891.962.042.09fy,fy'210300360360C30HRB400钢筋强度计算长度长细比稳定系数b(mm)h(mm)fcftfy'l0(mm)l0/bj45045014.31.43360900020.0#####配筋率合适2700计算全部纵向受力钢筋面积AS’2689.6N(KN)混凝土强度等级轴心受压构件的承载力计算强度设计值HPB235HRB335HRB400RRB400热扎钢筋钢筋强度设计值梁截面尺寸混凝土强度等级砼强度设计值N/mm2钢筋类别轴力设计值C70C75C8031.833.835.92.142.182.22最小配筋率最小配筋面积实际配筋率3%配筋面积5%配筋面积rminAs,minrAS’AS’0.00612151.33%607510125配筋率合适最后纵向受力钢筋面积AS2689.6混凝土强度等级轴心受压构件的承载力计算C15C20C25C30C35C40C45C50C55C60C65fc7.29.611.914.316.719.121.223.125.327.529.7ft0.911.11.271.431.571.711.81.891.962.042.09fy,fy'210≤C50C55C60C6530010.990.980.973600.80.790.780.77360≤C50C55C60C650.6140.550.5410.5310.5220.5180.5080.4990.490.5180.5080.4990.49C25HRB335钢筋强度计算长度界限相对高度b(mm)h(mm)fcftfy'l0(mm)α1ξb50065011.91.27300890010.55受压区高度e0eaeiζ1ζ2ηxb1ξ14021.671620.7741.001.39#####0.8#####α1fcbh0N(KN)3629500.0计算单侧纵向受力钢筋面积AS=AS’1840.5梁截面尺寸混凝土强度等级砼强度设计值N/mm2钢筋类别钢筋强度设计值β1HRB400混凝土级别混凝土强度等级轴心受压构件的承载力计算强度设计值HPB235HRB335α1HRB400RRB400热扎钢筋α1、β1值钢筋级别2500轴力设计值弯矩设计值界限相对受压区高度ξbHPB235HRB335RRB400初始偏心距偏心距增大系数小偏心M(KNm)350属于小偏心C70C75C8031.833.835.92.142.182.22C70C75C800.960.950.940.760.750.74C70C75C800.5120.5030.4930.4810.4720.4630.4810.4720.463长细比偏心距最小配筋率最小配筋面积最后纵向受力钢筋面积实际配筋率3%配筋面积l0/herminAs,minASrAS’13.7509.90.0026501607.30.99%9750最小配筋率最小配筋面积最后纵向受力钢筋面积两侧实际配筋率3%配筋面积5%配筋面积rminAs,minASrAS’AS’0.20%6501840.51.13%975016250计算单侧纵向受力钢筋面积AS=AS’1607.3假设as=as'=40配筋率合适x=2as'混凝土强度等级轴心受压构件的承载力计算α1、β1值界限相对受压区高度ξb5%配筋面积AS’16250配筋率合适直径根数164调整后直径根数184直径间距61008187调整后直径根数8180梁、柱所需钢筋面积（mm2）每米板所需钢筋面积（mm2）梁柱选筋板选筋772钢筋实际总面积803.8225钢筋实际总面积1017.4225269钢筋实际总面积282.6269.0钢筋实际总面积279.1一排筋要求的梁最小宽度