EXCEL结构计算软件大全VIP

灌注桩单桩竖向承载力计算,,,,,,,,,,,,

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孔号,ZK1,,,,,,,,,,,

孔口标高,73.50,,,,,,,,,,,

,土层分布:,第1层土,第2层土,第3层土,第4层土,第5层土,第6层土,第7层土,第8层土,第9层土,第10层土,第11层土

,桩身长度Li(m),2.00,3.00,2.50,4.00,2.00,2.00,1.00,5.00,8.00,10.00,0.00

,桩侧极限侧阻力标准值qsik（kPa）,0.00,0.00,25.00,25.00,30.00,35.00,40.00,45.00,65.00,60.00,0.00

,桩端极限端阻力标准值qpk（kPa）,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,4500.00,0.00

桩径D(m),0.80,总桩长（m)：,,39.50,,,,,,,,

桩身混凝土强度等级,C30,混凝土轴心抗压设计值fc(N/mm2)=,,,,14.30,,,,,,

大直径桩侧阻力尺寸效应系数ψs=(0.8/D)^1/3,,1.0000,,,,,,,,,,

大直径桩端阻力尺寸效应系数ψp=(0.8/D)^1/3,,1.0000,,,,,,,,,,

,桩身周长u(m),2.512,,,,,,,,,,

,桩端面积Ap(m^2),0.503,,,,,,,,,,

单桩极限侧阻力标准值(kN)Qsik=u*qsik*lsi,,0.00,0.00,157.00,251.20,150.72,175.84,100.48,565.20,1306.24,1507.20,0.00

单桩总极限侧阻力标准值(kN)∑Qsik=ψs*Qsik,,4213.88,,,,,,,,,,

单桩极限端阻力标准值(kN)Qpk=ψp*qpk*Ap,,2261.95,,,,,,,,,,

单桩竖向极限承载力标准值(kN)Quk=∑Qsik+Qpk,,6475.83,,,,,,,,,,

单桩竖向承载力特征(kN)Ra=（∑Qsik+Qpk)/2,,3237.91,,,,,,,,,,

桩身强度验算,0.65*fc*Ap=,4672.18,满足要求!,,,,,,,,,

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根据桩径按内插法计算工程桩桩身配筋率(0.30%～0.65%),,0.360,%,,,,,,,,,

工程桩桩身最小配筋值,,1811.29,,,,,,,,,,

,φ12根数(As=113),17,,纵筋间距,135,,,,,,,

,φ14根数(As=154),12,,纵筋间距,191,,,,,,,

,φ16根数(As=201),10,,纵筋间距,229,,,,,,,

,φ18根数(As=254),8,,纵筋间距,287,,,,,,,

试桩桩身最小配筋,As=[Quk-0.65*fc*Ap*(1-3%)]/fy=,6479.38,(mm2),,,,,,,,,

,φ16根数(As=201),33.00,,纵筋间距,69.46,,,,,,,

,φ18根数(As=254),26.00,,纵筋间距,88.16,,,,,,,

,φ20根数(As=314),21.00,,纵筋间距,109.15,,,,,,,

,φ22根数(As=381),18.00,,纵筋间距,127.34,,,,,,,

,φ25根数(As=491),14.00,,纵筋间距,163.73,,,,,,,

锚桩兼做工程桩时单桩抗拔承载力,,,,,,,,,,,,

,Rd'=（λ*∑Qsik)/γs+Gp=,1574.95,,,,,,,,,,

,λ为抗拔承载力系数，一般取0.5~0.6,,,,,,,,,,,

,γs为桩的抗拔承载力分项系数，取1.6,,,,,,,,,,,

,Gp为桩的自重，地下水以下扣除浮力，浮力分项系数1.2,,,Gp=(25-10*1.2)*Ap*∑lsi=,,,258.11,kN,,,,

,锚桩桩身最小配筋As'=Rd'/fy=,5249.84,(mm2),,,,,,,,,

,φ16根数(As=201),27.00,,纵筋间距,84.90,,,,,,,

,φ18根数(As=254),21.00,,纵筋间距,109.15,,,,,,,

,φ20根数(As=314),17