m桩身保护层厚度50mmWo=0.61m^3桩身配筋率ρg=0.66%do=1.70mαE=αs/αc=6.67桩顶水平位移系数vx=2.905查表5.7.2(如果桩的换算埋深在表里没有说明设计不合格)桩计算长度(换算埋深)α*h=2.80m混凝土弹性模量Ec=30000N/mm^2钢筋弹性模量Es=200000N/mm^2ft=1.43N/mm^2桩身配筋率ρg=0.66%桩截面模量塑性系数γm=2桩最大弯矩系数vm=0.93αE=αs/αc6.67桩身换算截面面积An=0.985651464m^2桩顶竖向力影响系数ζn=0.5do=1.70mC30混凝土弹性模量Ec=30000N/mm^2钢筋弹性模量Es=200000N/mm^2桩计算长度α*h=2.803001146m266.0610279.9960桩计算长度α*h=2.90m109.0120Kh=Co*Io/(aEI)=0.0207114.7220Co=173.9709MN/m^3176.7060Δo=0.004158325m185.9960190.8340200.04702.按桩极限侧阻力标准值计算土层序号桩周极限侧阻力土层厚度土层qsik(kpa)li(m)尺寸效应系数黏性土,粉土砂土,碎石类土土层1251.50.85ψsi0.850.76土层2300.70.82ψp0.820.76土层3453.80.85土层4480.50.76土层515010.76土层6土层7土层8土层9土层10土层11桩端承载力qpk2200Kpa0.82桩长7.5m单桩极限承载力标准值Quk=7446.01KN单桩抗压特征值Ra=3723.01KN单桩极限承载力标准值Tuk=1597.22KN单桩抗拔特征值Ua=1828.69KN桩身螺旋箍螺旋箍5d范围内10@1005d以下其余部分10@250m值(mk/m^4)15302033200
全文预览
