混凝土構(gòu)件的配筋計算

強度設(shè)計值,混凝土強度等級,,,,,,,,,,,,,,,,,,,,

,C15,C20,C25,C30,C35,C40,C45,C50,C55,C60,C65,C70,C75,C80,,,,,,,

fc,7.2,9.6,11.9,14.3,16.7,19.1,21.2,23.1,25.3,27.5,29.7,31.8,33.8,35.9,,,,,,,

ft,0.91,1.1,1.27,1.43,1.57,1.71,1.8,1.89,1.96,2.04,2.09,2.14,2.18,2.22,,,,,,,

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鋼筋強度設(shè)計值,,,"fy,fy'",,,,,α1、β1值,,,,,,,,,,,,,

熱扎鋼筋,HPB235,,210,,,混凝土級別,,≤C50,C55,C60,C65,C70,C75,C80,,,,,,,

,HRB335,,300,,,α1,,1,0.99,0.98,0.97,0.96,0.95,0.94,,,,,,,

,HRB400,,360,,,β1,,0.8,0.79,0.78,0.77,0.76,0.75,0.74,,,,,,,

,RRB400,,360,,,,,,,,,,,,,,,,,,

,,,,,,鋼筋級別,,界限相對受壓區(qū)高度ξb,,,,,,,,,,,,,

,,,,,,,,≤C50,C55,C60,C65,C70,C75,C80,,,,,,,

,,,,,,HPB235,,0.614,,,,,,,,,,,,,

,,,,,,HRB335,,0.55,0.541,0.531,0.522,0.512,0.503,0.493,,,,,,,

,,,,,,HRB400,,0.518,0.508,0.499,0.49,0.481,0.472,0.463,,,,,,,

,,,,,,RRB400,,0.518,0.508,0.499,0.49,0.481,0.472,0.463,,,,,,,

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混凝土強度等級,,,C30,,軸心受壓構(gòu)件的承載力計算,,,,,,,,,,,,,,,,

鋼筋類別,,,HRB335,,,,,,,,,,,,,,,,,,

梁截面尺寸,,砼強度設(shè)計值N/mm2,,鋼筋強度,彎矩設(shè)計值,,軸力設(shè)計值,,計算長度,,界限相對高度,長細(xì)比,偏心距,計算全部縱向受力鋼筋面積,最小配筋率,最小配筋面積,最后縱向受力鋼筋面積,,實際配筋率,3%配筋面積,5%配筋面積

b(mm),h(mm),fc,ft,fy',M(KNm),,N(KN),,"l0

(mm)",α1,ξb,l0/h,e,AS’,rmin,"As,min",AS,,r,AS’,AS’

400,500,14.3,1.43,300,160,,2500,,7500,1,0.55,15.0,336.3,-9505.8,0.006,1200,1200.0,,0.60%,6000,10000

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初始偏心距,,,偏心距增大系數(shù),,,受壓區(qū)高度,屬于小偏心,x>=2as',,配筋率合適,,,,,,,,,,,

e0,ea,ei,ζ1,ζ2,η,x