柱包钢法加固计算(GB50367-2013新加固规范)

加固柱号JGKZ1轴力N=22852.8kNαs=40mm弯矩M=109.35kN·mα's=40mm柱宽b=1200mmho=860mm柱高h=900mme0=4.78mmAs=3928mmea=30.00mmAs'=3928mmei=e0+ea=34.78mmfy=360N/mm2ξb=0.52fy'=360N/mm2α1=1.00柱砼强度：C41β１＝0.80fc=19.5N/mm2e=ei+h/2-αs=444.78mm按对称配筋考虑，计算NbNb=α1fcbξbho+f'yA's-fyAs=10429.22N=22852.8N/mm2属于小偏心受压选用型钢L200x18型钢强度fa=295Aa=13860mm2αa=1Ea=206000N/mm2χ＝780.42mmh01=860mmh0=882mmEso=200000N/mm2εcu=0.0033σs0＝(0.8h01/χ-1）Esoεcu=-78.16σa＝(0.8h0/χ-1）Eaεcu=-65.18《混凝土结构加固设计规范》(GB50367-2013)式(8.2.2-1)右边=α1fc0bχ+f'yoA's0-σs0AS0+αaf'aA'a-σaAa=24996.27≥N=22852.80kN《混凝土结构加固设计规范》(GB50367-2013)式(8.2.2-2)右边=α1fc0bχ(ho-χ/2)+f'yoA's0(ho-α's0)-σs0AS0(αs0-αa)+αaf'aA'a(ho-α'a)=16640.86≥Ne=10164.58kN·m柱包钢法加固计算满足要求