一、地质资料输入土层号计算层厚li(m)极限侧阻力qsik(Kpa)极限端阻力qpk(Kpa)11素填土0.622粉质粘土2.92533淤泥01244粉质粘土03055残积砂质粘性土6.33562.21801200708020008二、桩基参数输入0.81.0000351.00000.650016.7三、计算和验算2.5130.50317321608334016705456满足要求!ψc*fc*Ap=ZK37单桩竖向承载力估算极限侧阻力标准值Qsik(KN)u=π*D=桩身周长u(m)桩端面积Ap(m2)Ap=π*(D/2)2=6强风化花岗岩大直径桩侧阻力尺寸系数ψs=(0.8/D)^1/3大直径桩端阻力尺寸系数ψp=(0.8/D)^1/3ΣQsik=ψs(u*qsik*li)=极限端阻力标准值Qpk(kN)Qpk=ψp*qpk*Ap=极限承载力标准值Quk(kN)Quk=ΣQsik+Qpk=极限承载力特征值Ra(kN)Ra=Quk/2.00=桩身强度验算(kN)土层名称8碎块状强风化花岗岩7砂土状强风化花岗岩砼轴心抗压强度设计值fc桩径D(m)桩身砼等级施工工艺系数ψc一、地质资料输入土层号计算层厚li(m)极限侧阻力qsik(Kpa)极限端阻力qpk(Kpa)11粉质粘土1.703022淤泥2.30033粗砂2.006044残积砂质粘性土8.405055全风化花岗岩2.507060.501201000078二、桩基参数输入0.51.0000801.00000.650035.9三、计算和验算1.5710.19612971963326116304582满足要求!6砂土状强风化花岗岩ZK95单桩竖向承载力估算土层名称7碎块状强风化花岗岩施工工艺系数ψc砼轴心抗压强度设计值fc桩身周长u(m)u=π*D=桩径D(m)大直径桩侧阻力尺寸系数ψs=(0.8/D)^1/3桩身砼等级大直径桩端阻力尺寸系数ψp=(0.8/D)^1/3极限端阻力标准值Qpk(kN)Qpk=ψp*qpk*Ap=极限承载力标准值Quk(kN)Quk=ΣQsik+Qpk=桩端面积Ap(m2)Ap=π*(D/2)2=极限侧阻力标准值Qsik(KN)ΣQsik=ψs(u*qsik*li)=极限承载力特征值Ra(kN)Ra=Quk/2.00=桩身强度验算(kN)ψc*fc*Ap=一、地质资料输入土层号计算层厚li(m)极限侧阻力qsik(Kpa)极限端阻力qpk(Kpa)11素填土5.8922淤泥质土1.3033残积砂质粘性土1.7044全风化花岗岩1.3055强风化花岗岩103500678二、桩基参数输入0.81.0000301.00000.650014.3三、计算和验算2.5130.5030175917598804672满足要求!单桩竖向承载力估算(采用人工挖孔桩,只考虑端阻力)土层名称扩底直径D(m)大直径桩侧阻力尺寸系数ψs=(0.8/D)^1/3桩身砼等级大直径桩端阻力尺寸系数ψp=(0.8/D)^1/3扩底面积Ap(m2)Ap=π*(D/2)2=极限侧阻力标准值Qsik(kN)ΣQsik=ψs(u*qsik*li)=施工工艺系数ψc砼轴心抗压强度设计值fc扩底端周长u(m)u=π*D=取极限承载力特征值R(kN)=1800kN极限承载力标准值Quk(kN)Quk=ΣQsik+Qpk=极限承载力特征值R(kN)Ra=Quk/2.00=极限端阻力标准值Qpk(kN)Qpk=ψp*qpk*Ap=桩身强度验算(kN)ψc*fc*Ap=1.7≤314.3配筋率0.20%~0.65%7300实配根数13实配直径16实配面积26145105~满足要求DJ1人工挖孔墩基础计算所需配筋面积(mm2)1571单桩承载力标准值(kN)Quk=2*Ra1285满足要求0.785桩身面积A(m2)A=π*(D/2)2桩身强度验算(kN)ψc*fc*Ap施工工艺系数ψc0.65单桩承载力特征值(kN)Ra=fa*Ap643三、计算和验算扩底桩端面积Ap(m2)Ap=π*(D/2)22.270扩底端直径与桩身直径之比D1/D满足要求桩身混凝土等级30砼轴心抗压强度fc(N/mm2)二、桩基参数输入桩身直径D(m)1.0扩底端直径D1(m)1.7修正后的地基承载力特征值fa(kPa)283.1基础底面以下土的重度γ(kN/m3)18.60地基承载力特征值fak(kPa)190.00宽度修正系数ηb0.0深度修正系数ηd1.6土的加权平均重度γm(kN/m3)17.63基础宽度(m)1.40基础深度(m)3.80563.002卵石层43.天然重度γ(kN/m3)17.000.8020.00土层土层名称计算土层厚度li(m)1杂填土注:由于卵石层较薄,故按残积粘性土计算承载力。梁宽b(m)0.250柱宽b(m)0.400梁高h(m)0.700柱高h(m)0.500梁长l(m)4.100柱长l(m)3.900混凝土强度等级30混凝土强度等级25Ec(×104N/mm2)3.000Ec(×104N/mm2)2.8000.0070.004翼缘约束情况无约束柱类别底层柱中梁刚度放大系数1.000柱刚度放大系数1.0005.229E+042.991E+04柱梁线刚度比1.7480.5729-10轴两桩承台梁柱线刚度计算梁线刚度计算柱线刚度计算梁柱线刚度比)(1243mbhIb=)(mkNlIEibcb?=b)(1243mbhIb=)(mkNlIEibcb?=b参数2530351级钢fy'210(N/mm2)fc(N/mm2)11.914.316.72级钢fy'300(N/mm2)3级钢fy'360(N/mm2)0.6511.936060080090010001200140028260050240063585078500011304001538600根数121416182024桩配筋直径161616161818单根面积2012012012012542540.8535030.5601110.505780.4608920.4493980.3962042412281432163618508060962185.9113886.0644918.36071.9758743.64411901.07781.488911.7361041.9841172.2321645.921975.1042967.3994797.85960.2847244.20710389.5613876.182448.1043958.1854917.2345976.4718571.3911447.84ψc*fc*Aps+0.9*fy'*As桩身强度特征值(KN)桩端Ap=π*(D/2)2mm2桩配筋率桩配筋面积mm2ψc*fc*Aps(KN)0.9*fy'*As(KN)桩身强度设计值(KN)工艺系数ψc(0.6~0.7)取砼轴心抗压强度设计值fc(N/mm2)钢筋抗压强度设计值fy'(N/mm2)桩径D(mm)桩身计算桩顶以下5d,箍筋间距不大于100,且满足JGJ94-2008第4.1.1(桩身配筋率0.65~0.20%)按此公式计算:N≤ψc*fc*Aps+0.9*fy'*As参数砼轴心抗压强度设计值fc钢筋抗压强度设计值1520253035404550fc(N/mm2)7.29.611.914.316.719.121.123.1ft(N/mm2)0.911.101.271.431.571.711.801.89Ec(×104N/mm2)2.202.552.803.003.153.253.353.45翼缘约束情况无约束边框架梁中框架梁中梁刚度放大系数1.0001.5002.000柱类别底层柱其余各层柱柱计算长度放大系数1.0001.000参数混凝土强度等级55606570758025.327.529.731.833.835.91.962.042.092.142.182.223.553.603.653.703.753.80混凝土强度等级