承台桩基础详细计算书

承台桩基础详细计算书编制人：审核人：编制日期：单位名称：设计资料规范标准《公路桥涵设计通用规范》（JTGD60-2015）《公路钢筋混凝土及预应力混凝土桥涵设计规范》（JTG3362-2018）《公路桥涵地基与基础设计规范》（JTG3363-2019）《公路圬工桥涵设计规范》（JTGD61-2005）结构尺寸承台桩基础结构图坐标系定义z轴竖直，向上为正；x轴为横桥向，水平向右，y轴根据x轴、z轴由右手螺旋法则确定；坐标原点位于标高0.0m处。整体坐标系示意图墩柱桩基编号示意图墩柱桩基编号示意图材料参数计算参数表参数名称参数值承台材料C30桩基材料C30承台钢筋HRB400桩基钢筋HRB400荷载信息集中荷载汇总表荷载名称荷载类型荷载位置(m)集中力(kN)集中矩(kN∙基础顶结构重力结构重力X0HX0MX0Y0HY0MY0Z-3.7P-1.173385e4MZ0活载X0HX0MX9363.76Y0HY0MY0Z-3.7P-4071.2MZ0上部恒载X0HX0MX5683.76Y0HY0MY0Z-3.7P-2471.2MZ0台后土压力土侧压力X0HX0MX2091.671167Y0HY-1280.615MY0Z-3.7P0MZ0承台自重结构重力X0HX0MX0Y0HY0MY0Z-4.7P-5946.5MZ0地质信息zk地质资料土层工程地质物理力学参数表土层名称层顶标高(m)m值

(kN/m4)q(kPa)f(kPa)天然重度(kN/m3)饱和重度(kN/m3)内摩擦角(o)压缩模量(MPa)人工填土06000608020202610粉质粘土-1.91.5e44518019.4819.4810.3715细砂-5.23.5e44518020203024岩层工程地质物理力学信息岩层名称层顶标高(m)C0值(kN/m3)f(kPa)端阻发挥系数c侧阻发挥系数c砂岩-82.2e590000.54e-2水文信息常水位标高(m)：-7.6

承台计算承台承载力验算承台冲切承载力验算计算方法：承台冲切承载力按照《公路钢筋混凝土及预应力混凝土桥涵设计规范》第8.5.5条计算。边桩向上冲切强度验算2承载力验算承台边桩冲切计算图示边桩向上冲切承载力计算表计算参数参数值桩的边长bp(mm)960承台有效高度h0(mm)1930桩边缘至相应柱或墩台边缘的水平距离ax(mm)1180承台边缘至桩内边缘的水平距离bx(mm)1680冲跨比λx0.611399与冲跨比λx对应的冲切承载力系数αpx’0.985951混凝土轴心抗拉强度设计值ftd(Mpa)1.39冲切承载力(kN)9460.669908基本组合边桩向上冲切承载力验算表计算参数参数值γ01.1边桩竖向力γ0Fld(kN)5689.592648冲切承载力是否满足是3承载力验算承台边桩冲切计算图示边桩向上冲切承载力计算表计算参数参数值桩的边长bp(mm)960承台有效高度h0(mm)1930桩边缘至相应柱或墩台边缘的水平距离ax(mm)1180承台边缘至桩内边缘的水平距离bx(mm)1680冲跨比λx0.611399与冲跨比λx对应的冲切承载力系数αpx’0.985951混凝土轴心抗拉强度设计值ftd(Mpa)1.39冲切承载力(kN)9460.669908基本组合边桩向上冲切承载力验算表计算参数参数值γ01.1边桩竖向力γ0Fld(kN)5689.592648冲切承载力是否满足是6承载力验算承台边桩冲切计算图示边桩向上冲切承载力计算表计算参数参数值桩的边长bp(mm)960承台有效高度h0(mm)1930桩边缘至相应柱或墩台边缘的水平距离ax(mm)1180承台边缘至桩内边缘的水平距离bx(mm)1680冲跨比λx0.611399与冲跨比λx对应的冲切承载力系数αpx’0.985951混凝土轴心抗拉强度设计值ftd(Mpa)1.39冲切承载力(kN)9460.669908基本组合边桩向上冲切承载力验算表计算参数参数值γ01.1边桩竖向力γ0Fld(kN)2639.094481冲切承载力是否满足是7承载力验算承台边桩冲切计算图示边桩向上冲切承载力计算表计算参数参数值桩的边长bp(mm)960承台有效高度h0(mm)1930桩边缘至相应柱或墩台边缘的水平距离ax(mm)1180承台边缘至桩内边缘的水平距离bx(mm)1680冲跨比λx0.611399与冲跨比λx对应的冲切承载力系数αpx’0.985951混凝土轴心抗拉强度设计值ftd(Mpa)1.39冲切承载力(kN)9460.669908基本组合边桩向上冲切承载力验算表计算参数参数值γ01.1边桩竖向力γ0Fld(kN)2639.094481冲切承载力是否满足是群桩验算全部验算结果群桩验算结论验算项目结果单桩轴向承载力是单桩桩端应力是单桩桩基截面承载力是单桩桩基截面应力是单桩桩基截面抗裂性是群桩整体基础沉降量(mm)13.729456运营阶段轴向受压承载力验算汇总表基础名称组合名称桩身竖向力N(kN)轴向受压承载力容许值γaNR(kN)γaNR/N是否满足对应桩号承台桩基础03e频遇组合-主要荷载3883.8412651.842799e44.744785是103f频遇组合-全部荷载3883.8412652.303499e45.930982是1运营阶段轴向受拉承载力验算汇总表基础名称组合名称桩身竖向力N(kN)轴向受拉承载力容许值NR(kN)NR/N是否满足对应桩号承台桩基础03e频遇组合-主要荷载2541.92456600是503f频遇组合-全部荷载2541.924566-117.055742-4.605005e-2是5运营阶段桩基截面承载力验算成果汇总表基础名称组合名称截面轴力N(kN)截面弯矩M(kN·m)截面抗力NR(kN)是否满足最值工况对应桩号断面位置z(m)承台桩基础01基本组合4950.8485661548.5072761.141487e4是NRNmin10运营阶段桩基截面裂缝验算汇总表基础名称截面弯矩M(kN·m)截面轴力N(kN)裂缝宽度(mm)裂缝宽度限值(mm)是否满足对应桩号断面位置z(m)承台桩基础889.0407792382.1684532.81e-20.2是80整体基础桩端平面处最大压应力验算表组合名称最值工况外荷载产生压应力p(kPa)附加压应力(kPa)基底最大压应力合计pmax(kPa)地基承载力容许值γR[fa](kPa)是否满足03e频遇组合-主要荷载平均应力420.8573070420.8573071500是Nmax502.9862280502.9862281500是Nmin567.6159030567.6159031500是MXmax567.6159030567.6159031500是MXmin502.9862280502.9862281500是MYmax502.9862280502.9862281500是MYmin502.9862280502.9862281500是03f频遇组合-全部荷载平均应力420.8573070420.8573071500是Nmax502.9862280502.9862281875是Nmin567.6159030567.6159031875是MXmax567.6159030567.6159031875是MXmin502.9862280502.9862281875是MYmax502.9862280502.9862281875是MYmin502.9862280502.9862281875是桩端平面中心处荷载效应组合表组合名称最值工况N(kN)MX(kN·m)MY(kN·m)03e频遇组合-主要荷载平均应力验算-2.422275e4————Nmax-2.015155e42.570404e40Nmin-2.422275e43.50678e40MXmax-2.422275e43.50678e40MXmin-2.015155e42.570404e40MYmax-2.015155e42.570404e40MYmin-2.015155e42.570404e4003f频遇组合-全部荷载平均应力验算-2.422275e4————Nmax-2.015155e42.570404e40Nmin-2.422275e43.50678e40MXmax-2.422275e43.50678e40MXmin-2.015155e42.570404e40MYmax-2.015155e42.570404e40MYmin-2.015155e42.570404e40整体基础基底应力计算公共参数表地面或局部冲刷线以下承台底埋深h(m)5.7桩的深度l(m)12承台底面以上土的重度γ(kN/m3)19.698947承台底面包括桩的重力在内至桩端平面土的平均重度γ(kN/m3)20.054187桩径或方桩边长d(m)1.2基桩穿过土层的平均土内摩擦角θ(度)30h范围内实体基础体积BLh(m3)677.901假想的整体基础在桩端平面处的计算面积A(m2)160.01648假想的整体基础在桩端平面处的截面抵抗矩Wx(m3)238.948874假想的整体基础在桩端平面处的截面抵抗矩Wy(m3)476.306652、单桩验算结果（1号桩）、单桩轴向承载力单桩轴向受压承载力验算表荷载组合轴向受压承载力(kN)抗力系数修正轴向受压承载力(kN)桩身最大竖向力(kN)是否满足03e频遇组合-主要荷载1.842799e411.842799e43883.841265是03f频遇组合-全部荷载1.842799e41.252.303499e43883.841265是单桩轴向受拉承载力验算表荷载组合轴向受拉承载力(kN)桩身最小竖向力(kN)是否满足03e频遇组合-主要荷载03174.545887是03f频遇组合-全部荷载-117.0557423174.545887是单项内力结果荷载截面位置z(m)N(kN)QX(kN)QY(kN)MX(kN·m)MY(kN·m)基础顶结构重力0(地面处/冲刷线)1466.73072000011.899999(钢筋端点1)1466.730720000活载0(地面处/冲刷线)761.3201525513631411.899999(钢筋端点1)761.3201520000上部恒载0(地面处/冲刷线)462.11789133.49732300331.50227411.899999(钢筋端点1)462.1178910000台后土压力0(地面处/冲刷线)163.092769-119.95454800175.24308511.899999(钢筋端点1)163.0927690000承台自重0(地面处/冲刷线)743.3125000011.899999(钢筋端点1)743.31250000、组合桩身内力表基本组合截面位置z(m)工况N(kN)QX(kN)QY(kN)MX(kN·m)MY(kN·m)0(地面处/冲刷线)Nmax4950.848566-55.527932001548.507276Nmin3118.779269-95.10294700557.419895MXmax3118.779269-95.10294700557.419895MXmin3118.779269-95.10294700557.419895MYmax4950.848566-55.527932001548.507276MYmin3118.779269-95.10294700557.41989511.899999(钢筋端点1)Nmax4950.8485660000Nmin3118.7792690000MXmax3118.7792690000MXmin3118.7792690000MYmax3118.7792690000MYmin3118.7792690000频遇组合截面位置z(m)工况N(kN)QX(kN)QY(kN)MX(kN·m)MY(kN·m)0(地面处/冲刷线)Nmax3368.177987-47.82740400889.040779Nmin2835.253881-86.45722400506.745359MXmax2835.253881-86.45722400506.745359MXmin2835.253881-86.45722400506.745359MYmax3368.177987-47.82740400889.040779MYmin2835.253881-86.45722400506.74535911.899999(钢筋端点1)Nmax3368.1779870000Nmin2835.2538810000MXmax2835.2538810000MXmin2835.2538810000MYmax2835.2538810000MYmin2835.2538810000标准值组合0(地面处/冲刷线)Nmax3596.574033-31.271767001052.881673Nmin2835.253881-86.45722400506.745359MXmax2835.253881-86.45722400506.745359MXmin2835.253881-86.45722400506.745359MYmax3596.574033-31.271767001052.881673MYmin2835.253881-86.45722400506.74535911.899999(钢筋端点1)Nmax3596.5740330000Nmin2835.2538810000MXmax2835.2538810000MXmin2835.2538810000MYmax2835.2538810000MYmin2835.2538810000、截面应力验算标准值组合桩身截面应力验算表截面位置z(m)最值工况N(kN)M(kN·m)混凝土最大压应力(Mpa)对应钢筋拉应力(Mpa)混凝土压应力是否满足钢筋拉应力是否满足0(地面处/冲刷线)Nmax3596.5740331052.8816738.812732-20.283908是是Nmin2835.253881506.7453594.810678-0.223552是是MXmax2835.253881506.7453594.810678-0.223552是是MXmin2835.253881506.7453594.810678-0.223552是是MYmax3596.5740331052.8816738.812732-20.283908是是MYmin2835.253881506.7453594.810678-0.223552是是11.899999(钢筋端点1)Nmax3596.57403302.857563-19.580124是是Nmin2835.25388102.252676-15.435418是是MXmax2835.25388102.252676-15.435418是是MXmin2835.25388102.252676-15.435418是是MYmax2835.25388102.252676-15.435418是是MYmin2835.25388102.252676-15.435418是是、桩身承载力验算承载能力极限状态基本组合桩身承载力验算表截面位置z(m)最值工况N(kN)M(kN·m)NR(kN)是否满足0(地面处/冲刷线)Nmax4950.8485661548.5072761.141487e4是Nmin3118.779269557.4198951.495546e4是MXmax3118.779269557.4198951.495546e4是MXmin3118.779269557.4198951.495546e4是MYmax4950.8485661548.5072761.141487e4是MYmin3118.779269557.4198951.495546e4是11.899999(钢筋端点1)Nmax4950.84856601.870806e4是Nmin3118.77926901.870806e4是MXmax3118.77926901.870806e4是MXmin3118.77926901.870806e4是MYmax3118.77926901.870806e4是MYmin3118.77926901.870806e4是、截面裂缝宽度验算频遇组合桩身截面裂缝宽度验算表截面位置z(m)最值工况N(kN)M(kN·m)裂缝宽度(mm)裂缝容许值(mm)是否满足0(地面处/冲刷线)Nmax3368.177987889.0