预应力钢绞线理论伸长量计算(箱梁)

钢绞线Φj15.20 fpk=1860MPa;Ep=1.95*105MPa;A=140mm2;K=0.0015;u=0.25;控制张拉应力=0.75fpk=1395MPa,采用两端张拉，每端张拉工作长度L0=65.0cm Pp=P(1-e-(KL+μθ))/(KL+μθ) △L=PpL/(AEp)梁板钢绞线编号L(m)0.6501.9225.750N12.1283.9250.88530m中跨0.6500.7210.785N26.8583.9252.5070.0000.0870.00000.00690.02140.00250.9930.9790.997193658.76192335.20188267.05192996.22190293.88188031.28.4827.3617.270.00000.0000.0310.00070.00070.00710.9990.9990.993195300.000195173.10195032.43195236.195102.75194344.794.655.155.59108.500.0000.0870.00000.00210.02140.00090.9980.9790.999192468.34192059.20187996.90192263.70190020.81187913.7314.9927.326.09θ(rad)0.0000.0000.031KL+μθ0.00070.00190.0120e-(KL+μθ)0.9990.9980.988Pq(N)195300.000195173.10194798.33Pp(N)195236.194985.66193631.00△L(mm)4.6513.7340.78107.56伸长量（mm）总伸长量215.11217.0030m箱梁预应力筋理论伸长量计算表

钢绞线Φj15.20 fpk=1860MPa;Ep=1.95*105MPa;A=140mm2;K=0.0015;u=0.25;控制张拉应力=0.75fpk=1395MPa,采用两端张拉，每端张拉工作长度L0=65.0cm Pp=P(1-e-(KL+μθ))/(KL+μθ) △L=PpL/(AEp)0.6500.7210.785N35.2523.92530m中跨4.1290.6501.067N40.73312.9010.65030m边跨0.7210.0000.00070.999195173.10195102.755.150.0870.00000.00000.01820.01290.00070.9820.9870.9991949.958191451.315195300.000193202.81190221.65195236.5.19.4.650.00000.00000.0000.00410.00070.00110.9960.9990.999193798.44195300.000195173.096193398.195236.195069.0129.2.657.62107.350.0000.0870.00530.02140.9950.979195173.10195032.43194661.47192962.4837.4527.740.00000.0000.0310.00070.00070.00710.9990.9990.993195300.000195173.10195173.10195236.195102.75194484.9.655.155.59109.84219.67214.7030m箱梁预应力筋理论伸长量计算表

钢绞线Φj15.20 fpk=1860MPa;Ep=1.95*105MPa;A=140mm2;K=0.0015;u=0.25;控制张拉应力=0.75fpk=1395MPa,采用两端张拉，每端张拉工作长度L0=65.0cm Pp=P(1-e-(KL+μθ))/(KL+μθ) △L=PpL/(AEp)0.785N16.7143.9252.6630.65030m边跨N25.1193.92.2630.6500.7210.7210.7850.0310.0000.0870.00000.00000.0000.0310.0000.0870.00000.00000.0000.00710.00670.02140.00270.00070.00070.00710.00510.02140.00430.00070.00070.9930.9930.9790.9970.9990.9990.9930.9950.9790.9960.9990.999195173.10195173.10195032.43193798.44195300.000195173.10195173.10195173.10195032.43193798.44195300.000195173.10194484.96194519.36192962.481930.63195236.195102.75194484.96194674.40192962.48193385.95195236.195102.755.59109.87.8427.7418.884.655.155.59109.8436.5027.7430.204.655.15217.41218.3430m箱梁预应力筋理论伸长量计算表

钢绞线Φj15.20 fpk=1860MPa;Ep=1.95*105MPa;A=140mm2;K=0.0015;u=0.25;控制张拉应力=0.75fpk=1395MPa,采用两端张拉，每端张拉工作长度L0=65.0cm Pp=P(1-e-(KL+μθ))/(KL+μθ) △L=PpL/(AEp)0.785N33.5243.9255.86330m边跨0.6501.017N40.73313.0010.0870.00000.01820.01300.9820.987194974.706191460.888195300.000195300.000195300.000193212.47190221.67194958.62194812.56194569.455.1990.5924.9935.6853.450.00000.0000.00070.00100.9990.999195300.000195173.096195236.195073.884.657.27107.690.0000.0870.00000.00350.02140.00590.9960.9790.994195173.10195032.43193798.44194829.60192962.48193231.4325.1527.7441.500.0310.00710.993195173.10194484.965.59109.78219.62215.04T1顶板T2T33.50005.00007.50000.00000.00000.00000.00350.00500.00750.99650.99500.992524.9935.6853.49.9971.36106.91