1、10、工具锚计算长度：不计系数k及值表孔道成型方式k（钢绞线）预埋波纹管成型0.00150.200.25采用值0.22三、张拉时理论伸长量计算：主线桥14东侧、531墩盖梁钢束1、AB段伸长量：（直线段0）单根钢绞线张拉的张拉力P=0.751860X=3.18m=0rad kx+=0.00153.18=0.00477Pp=195300（1-e-0.00477）/0.00477=194834.95N L= PpL/（Ap Ep）=194834.953.18103/（140105）=22.4mm 2、BC段伸长量：P=194834.95N=318/1500=0.212rad 3.18+0.220.
2、212=0.05141Pp=194834.95（1-e-0.05141）/0.05141=189911.45N L= PpL/（Ap Ep）=189911.45105）=21.8mm 3、CD段伸长量：P=（189911.45+190013.74）/2=189963NX=2.942m2.942=0.004413Pp=189963（1-e-0.004413）/0.004413=189544.06N L= PpL/（Ap Ep）=189544.062.942105）=20.1mm 4、DE段伸长量：P=194819.62NX=3.103m=310.3/1500=0.2068667rad 3.103
3、+0.220.2068667=0.050165Pp=194819.62（1-e-0.050165）/0.050165=190013.74N L= PpL/（Ap Ep）=190013.743.103105）=21.3mm5、EF段伸长量：X=3.285m3.285=0.004928（1-e-0.004928）/0.004928=194819.62N L= PpL/（Ap Ep）=194819.623.285105）=23.1mm 盖梁两端工作锚间钢束理论伸长量：108.6mm6、单个千斤顶段伸长量（无管道摩阻力）：X=0.345+0.55+0.30.43mL= PpL/（Ap Ep）=1953
4、000.43105）=3mm 钢束X=3.273m3.273=0.0049095（1-e-0.0049095）/0.0049095=194821.37N L= PpL/（Ap Ep）=194821.373.273105）=23mm P=194821.37NX=3.703m=370.3/1500=0.24687rad 3.703+0.220.24687=0.0598652（1-e-0.0598652）/0.0598652=189104.51N L= PpL/（Ap Ep）=189104.513.703105）=25.3mm P=（189104.51+189204.97）/2=189155NX=1
5、.794m1.794=0.002691Pp=189155（1-e-0.002691）/0.002691=188900.41N L= PpL/（Ap Ep）=188900.411.794105）=12.2mm P=194806.33N X=3.627m=3.627/1500=0.24180rad 3.627+0.220.24180=0.058637Pp=194806.33（1-e-0.058637）/0.058637=189204.97N L= PpL/（Ap Ep）=189204.973.627105）=24.8mmX=3.376m3.376=0.005064（1-e-0.005064）/0.
6、005064=194806.33N L= PpL/（Ap Ep）=194806.333.376105）=23.7mm 109mm6、单个千斤顶段伸长量（不考虑管道摩阻力）：主线桥4墩西侧盖梁X=3.852m3.852=0.005778（1-e-0.005778）/0.005778=194736.86N L= PpL/（Ap Ep）=194736.863.852105）=27.1mm P=194736.86NX=2.842m=284.2/1500=0.18947rad 2.842+0.220.18947=0.0459457Pp=194736.86（1-e-0.0459457）/0.0459457
7、=190330.94N L= PpL/（Ap Ep）=190330.942.842105）=19.5mm P=（190330.94+189731.24）/2=190121NX=2.736m2.736=0.004104Pp=190121（1-e-0.004104）/0.004104=189544.06N 2.736105）=18.7mm P=194834NPp=194834（1-e-0.05141）/0.05141=189910.74N L= PpL/（Ap Ep）=189910.74105）=21.8mmX=3.185m3.185=0.004778（1-e-0.004778）/0.004778
8、=194834.22N L= PpL/（Ap Ep）=194834.223.185109.5mmX=3.90m3.90=0.00585（1-e-0.00585）/0.00585=194729.86N L= PpL/（Ap Ep）=194729.863.90105）=27.4mm P=194729.86NX=3.365m=336.5/1500=0.22433rad 3.365+0.220.22433=0.0544008Pp=194729.86（1-e-0.0544008）/0.0544008=189527.88N L= PpL/（Ap Ep）=189527.883.365105）=23.0mm
9、P=（189527.88+189103.80）/2=189316NX=1.629m1.629=0.0024435Pp=189316（1-e-0.0024435）/0.0024435=189084.73N L= PpL/（Ap Ep）=189084.731.629105）=11.1mm P=194820.64N =3.703/1500=0.24180rad 0.24180=0.059865Pp=194820.64（1-e-0.059865）/0.059865=189103.8N L= PpL/（Ap Ep）=189103.8105）=25.3mmX=3.278m3.278=0.004917（1-
10、e-0.004917）/0.004917=194820.64N L= PpL/（Ap Ep）=194820.643.278109.8mm主线桥3墩西侧盖梁X=4.217m4.217=0.0063255（1-e-0.0063255）/0.0063255=194683.62N L= PpL/（Ap Ep）=194683.624.217105）=29.6mm P=194683.62NX=1.273m=127.3/600=0.21217rad 1.273+0.220.21217=0.0485862Pp=194683.62（1-e-0.0485862）/0.0485862=190029.82N L= P
11、pL/（Ap Ep）=190029.821.273105）=8.7mm P=190029.82NX=2.818m2.818=0.004227Pp=190029.82（1-e-0.004227）/0.004227=189628.76N L= PpL/（Ap Ep）=189628.762.818105）=19.3mm P=（189628.76+188774.86）/2=189202NX=0.386m=38.6/600=0.06433rad 0.386+0.220.06433=0.014732（1-e-0.0147732）/0.014732=187814.94N L= PpL/（Ap Ep）=187
12、814.940.386105）=2.6mm5、CD段伸长量：P=189156.11NX=2.691m2.691=0.004037Pp=189156.11（1-e-0.004037）/0.004037=188774.86N L= PpL/（Ap Ep）=188774.862.691105）=18.3mm 6、DE段伸长量：P=194703.31NX=1.522m=152.2/600=0.25367rad 1.522+0.220.25367=0.058090Pp=194703.31（1-e-0.058090）/0.058090=189156.11N L= PpL/（Ap Ep）=189156.11
13、1.522105）=10.4mm7、EF段伸长量：X=4.082m4.082=0.006123（1-e-0.006123）/0.006123=194703.31N L= PpL/（Ap Ep）=194703.314.082105）=28.7mm 117.6mm8、单个千斤顶段伸长量（不考虑管道摩阻力）：X=4.088m4.088=0.006132（1-e-0.006132）/0.006132=194702.43N L= PpL/（Ap Ep）=194702.434.088P=194702.43NX=1.605m=160.5/600=0.02675rad 1.605+0.220.02675=0.
14、0612575Pp=194702.43（1-e-0.0612575）/0.0612575=188858.87N L= PpL/（Ap Ep）=188858.871.605105）=10.9mm P=188858.87NX=2.529m2.529=0.0037935Pp=188858.87（1-e-0.0037935）/0.0037935=188501.10N L= PpL/（Ap Ep）=188501.102.529105）=17.2mm P=（188501.10+187664.64）/2=188083NX=0.629m=62.9/600=0.10483rad 0.629+0.220.1048
15、3=0.024007Pp=188083（1-e-0.024007）/0.024007=185843.19N L= PpL/（Ap Ep）=185843.190.629105）=4.2mmP=188003.77NX=2.408m2.408=0.003612Pp=188003.77（1-e-0.003612）/0.003612=187664.64N L= PpL/（Ap Ep）=187664.642.408105）=16.3mm P=194722.86NX=1.851m=185.1/600=0.30850rad 1.851+0.220.30850=0.070647（1-e-0.070647）/0.
16、070647=188003.77N L= PpL/（Ap Ep）=188003.771.851105）=12.6mmX=3.948m3.948=0.005922（1-e-0.005922）/0.005922=194722.86N L= PpL/（Ap Ep）=194722.863.948105）=27.7mm 117.7mm主线桥2墩西侧盖梁X=3.943m3.943=0.0059145（1-e-0.0059145）/0.0059145=194723.59N L= PpL/（Ap Ep）=194723.593.943P=194723.59NX=1.813m=181.3/600=0.30217r
17、ad 1.813+0.220.30217=0.0691962Pp=194723.59（1-e-0.0691962）/0.0691962=188139.26N L= PpL/（Ap Ep）=188139.261.813105）=12.3mm P=188139.26NX=2.812m2.812=0.004218Pp=188139.26（1-e-0.004218）/0.004218=188743.04N L= PpL/（Ap Ep）=188743.042.755105）=19.0mm P=（188743.04+187118.44）/2=187431NX=1.401m=140.1/600=0.2335rad 1.401+0.220.2335=0.053472Pp=187431（1-e-0.053472）/0.053472=182507.77N L= PpL
