word混凝土参数〔N/mm2〕混 凝 土 强度等级强度标准值强度设计值模量抗压抗拉抗压抗拉弹性剪变疲变fckftkfcftEcEcfC1510.0 1.27 40.88 x104C2013.4 1.54 41.02 x1041.10 x104C2516.7 1.78 2.80 x1041.12 x1041.20 x104C3020.1 2.01 41.20 x1041.30 x104C3523.4 2.20 3.15 x1041.26 x1041.40 x104C4026.8 2.39 3.25 x1041.30 x1041.50 x104C4529.6 2.51 3.35 x1041.34 x1041.55 x104C5032.4 2.64 3.45 x1041.38 x1041.60 x104C5535.5 2.74 3.55 x1041.42 x1041.65 x104C6038.5 2.85 3.60 x1041.44 x1041.70 x104C6541.5 2.93 3.65 x1041.46 x1041.75 x104C7044.5 2.99 3.70 x1041.48 x1041.80 x104C7547.4 3.05 3.75 x1041.50 x1041.85 x104C8050.2 3.11 3.80 x1041.52 x1041.90 x104普通钢筋参数〔N/mm2〕种类极限强度标准值fstk屈服强度标准值fyk抗拉强度设计值fy抗压强度设计值fy'横向钢筋抗拉设计值fyvEsHPB3004203002702702702.1 x105HRB3354553353003003002.0 x105HRB4005404003603603602.0 x105HRB5006305004354103602.0 x105界限受压区高度 xb混凝土强度≤C50C55C60C65C70C75C80有屈服点HPB300HRB335HRB400HRB500无屈服点HPB300HRB335HRB400HRB500β1不超过C50时，取为0.80，C80时，0.74，其间按线性内插法确定。
α1不超过C50时，取为1.00，C80时，0.94，其间按线性内插法确定截面受拉区配置不同种类的钢筋时，ξb应分别计算，并取其较小值 附加箍筋承受集中荷载〔HPB300〕(kN)箍筋直径两侧双肢箍筋总个数1468106810121416每根附加吊筋承受集中荷载(kN)吊筋直径HPB300级HRB335级HRB400级45度60度45度60度45度60度1029.99 36.73 33.32 40.81 39.99 48.97 1243.18 52.89 47.98 58.77 57.58 70.52 1458.78 71.99 65.31 79.99 78.37 95.99 1676.77 94.03 85.30 104.47 102.36 125.37 1897.17 119.00 107.96 132.23 129.55 158.67 20119.96 146.92 133.29 163.24 159.94 195.89 22145.15 177.77 161.28 197.52 193.53 237.03 25187.43 229.56 208.26 255.07 249.91 306.08 28235.12 287.96 261.24 319.95 313.49 383.95 32307.09 376.11 341.21 417.90 409.46 501.48 / 纵向受拉钢筋的锚固长度 laE钢筋种类抗震等级混凝土等级C15C20C25C30C35C40C45C50C55≥C60HPB300一、二三四、非抗震HRB335一、二三四、非抗震HRB400一、二三四、非抗震HRB550一、二三四、非抗震注：1锚固长度修正系数详见《混规》条。
2搭接长度取值：纵向钢筋搭接接头面积百分率≤25%时，取倍锚固长度，50%时，取倍，100%时取倍钢筋种类混凝土等级C15C20C25C30C35C40C45C50C55C60C65C70C75C80HPB300HRB335HRB400HRB500HPB300HRB335HRB400HRB500板类〔悬臂板除外〕构件纵向受拉钢筋的最小配筋率(%)C15C20C25C30C35C40C45C50C55C60C65C70C75C80HPB300(Ⅰ)HRB335(Ⅱ)HRB400(Ⅲ)HRB500受压构件一侧纵向钢筋的最小配筋率(%)1m宽板内钢筋面积统计〔mm2〕钢筋间距)钢筋直径(mm)2045676/8898/101010/121212/141414/1616605236209327471641654838106010731309159718852225256629583351801572453534814916287958059821198141416691924221925138514823133345346259174875892411271331157118112088236590140218314428436559707716873106512571484171019722234951322072984054135296706788271009119014051620186821161001261962833853935036366447859581131133515391775201111011417825735035745757858571487110281214139916141828120105164236321327419530537654798942111312831479167612510115722630831440250951562876790510681232142016081301512172963023874894956047378701027118413651547140140202275280359454460561684808954110012681436150131188257262335424429524639754890102611831340160123177241245314398403491599707834962110912571701151662262312963743794625646657859061044118318010915721421827935335843653262874285598611171901031492032072653353394135045957038109341058200192196251318322393479565668770887100522012917517822。