油压表读数计算书.doc

30mT梁预制预应力张拉油压表计算书1、工程概况本合同段共有13座大中桥梁，12座桥梁上部结构形式均采用先简支后连续预应力T梁结构，单幅桥面宽12.25m（包含左右侧0.5m防撞墙宽度），由5片T梁架设及4个湿接缝浇筑组成。全线30mT梁555片，40mT梁161片，T梁理论梁长30（40）m，梁肋中心线间距2.4m，梁高2.0（2.5）m，中梁梁宽1.7m，边梁梁宽2.05m，混凝土强度等级为C50，T梁集中在1个预制场预制，T梁架设由梁场从大小里程两端分别架设，小里程端390片30mT梁，大里程端165片30mT梁及161片40mT梁。预应力钢绞线采用抗拉强度标准值为fpk=1860 MPa ,弹性模量为Ep=1.95105MPa,公称直径为15.2mm的高强度、低松弛钢绞线，其技术条件符合GB/T5224标准，波纹管采用金属波纹管。2、计算过程根据桥梁通用图，预应力钢绞线采用抗拉强度标准值为fpk=1860 MPa ,弹性模量为Ep=1.95105MPa,公称直径为15.2mm的高强度、低松弛钢绞线，张拉控制应力0.75fpk（1395MPa）。根据预应力钢绞线检测报告及我国现行15.2mm钢绞线的技术规范：单股钢绞线有效截面积A=140mm2，11束钢绞线A11=14011=1540 mm2；10束钢绞线A10=14011=1400 mm2；9束钢绞线A9=14011=1260 mm2；8束钢绞线A8=1408=1120mm2。当张拉控制应力为100%时，边跨边梁N1钢绞线两端张拉力FN1=N1* A11=139515401000=2148.3KN；N2钢绞线两端张拉力FN2=N2* A10=139514001000=1953KN；N3钢绞线两端张拉力FN3=N3* A10=139514001000=1953KN；当张拉控制应力为100%时，边跨中梁N1钢绞线两端张拉力FN1=N1* A9=139512601000=1757.7KN；N2钢绞线两端张拉力FN2=N2* A9=139512601000=1757.7KN；N3钢绞线两端张拉力FN3=N3* A9=139512601000=1757.7KN；当张拉控制应力为100%时，中跨边梁N1钢绞线两端张拉力FN1=N1* A10=139514001000=1953KN；N2钢绞线两端张拉力FN2=N2* A9=139512601000=1757.7KN；N3钢绞线两端张拉力FN3=N3* A9=139512601000=1757.7KN；当张拉控制应力为100%时，中跨中梁N1钢绞线两端张拉力FN1=N1* A9=139512601000=1757.7KN；N2钢绞线两端张拉力FN2=N2* A8=139511201000=1562.4KN；N3钢绞线两端张拉力FN3=N3* A8=139511201000=1562.4KN；根据“千斤顶标定报告”中千斤顶出力值X（KN）-油压Y（MPa）关系方程。当千斤顶编号为D712036；油压表编号为C1203066时，Y=0.02318 X-0.33，于是得到以下结论：边跨边梁N1钢绞线:10%FN1时油压表读数： Y=0.02318 (2148.30.1)-0.33=4.65 MPa;20%FN1时油压表读数：Y=0.02318 (2148.30.2)-0.33=9.63MPa;100% FN1时油压表读数：Y=0.02318 2148.3-0.33=49.47 MPa;N2钢绞线:10%FN2时油压表读数：Y=0.02318 (19530.1)-0.33=4.20 MPa;20%FN2时油压表读数：Y=0.02318 (19530.2)-0.33=8.72 MPa;50%FN2时油压表读数：Y=0.02318 (19530.5)-0.33=22.30 MPa;100% FN2时油压表读数：Y=0.02318 1953-0.33=44.94 MPa;N3钢绞线:10%FN2时油压表读数：Y=0.02318 (19530.1)-0.33=4.20 MPa;20%FN2时油压表读数：Y=0.02318 (19530.2)-0.33=8.72 MPa;100% FN2时油压表读数：Y=0.02318 1953-0.33=44.94 MPa;边跨中梁N1钢绞线:10%FN1时油压表读数： Y=0.02318 (1757.70.1)-0.33=3.74 MPa;20%FN1时油压表读数：Y=0.02318 (1757.70.2)-0.33=7.82 MPa;100% FN1时油压表读数：Y=0.023181757.7-0.33=40.41 MPa;N2钢绞线:10%FN1时油压表读数： Y=0.02318 (1757.70.1)-0.33=3.74 MPa;20%FN1时油压表读数：Y=0.02318 (1757.70.2)-0.33=7.82 MPa;50% FN1时油压表读数：Y=0.02318（1757.70.5）-0.33=20.03 MPa;100% FN1时油压表读数：Y=0.023181757.7-0.33=40.41 MPa;N3钢绞线:10%FN1时油压表读数： Y=0.02318 (1757.70.1)-0.33=3.74 MPa;20%FN1时油压表读数：Y=0.02318 (1757.70.2)-0.33=7.82 MPa;100% FN1时油压表读数：Y=0.023181757.7-0.33=40.41 MPa;中跨边梁N1钢绞线:10%FN1时油压表读数： Y=0.02318 (19530.1)-0.33=4.20MPa;20%FN1时油压表读数：Y=0.02318 (19530.2)-0.33=8.72MPa;100% FN1时油压表读数：Y=0.023181953-0.33=44.94 MPa;N2钢绞线:10%FN1时油压表读数： Y=0.02318 (1757.70.1)-0.33=3.74MPa;20%FN1时油压表读数：Y=0.02318 (1757.70.2)-0.33=7.82MPa;50%FN1时油压表读数：Y=0.02318 (1757.70.5)-0.33=20.04MPa;100% FN1时油压表读数：Y=0.023181757.7-0.33=40.41 MPa;N3钢绞线:10%FN1时油压表读数： Y=0.02318 (1757.70.1)-0.33=3.74MPa;20%FN1时油压表读数：Y=0.02318 (1757.70.2)-0.33=7.82MPa;100% FN1时油压表读数：Y=0.023181757.7-0.33=40.41 MPa;中跨中梁N1钢绞线:10%FN1时油压表读数： Y=0.02318 (1757.70.1)-0.33=3.74 MPa;20%FN1时油压表读数：Y=0.02318 (1757.70.2)-0.33=7.82 MPa;100% FN1时油压表读数：Y=0.023181757.7-0.33=40.41 MPa;N2钢绞线:10%FN1时油压表读数： Y=0.02318 (1562.40.1)-0.33=3.29MPa;20%FN1时油压表读数：Y=0.02318 (1562.40.2)-0.33=6.91MPa;50% FN1时油压表读数：Y=0.02318（1562.40.5）-0.33=17.78MPa;100% FN1时油压表读数：Y=0.023181562.4-0.33=35.89MPa;N3钢绞线:10%FN1时油压表读数： Y=0.02318 (1562.40.1)-0.33=3.29MPa;20%FN1时油压表读数：Y=0.02318 (1562.40.2)-0.33=6.91MPa;100% FN1时油压表读数：Y=0.023181562.4-0.33=35.89MPa;根据“千斤顶标定报告”中千斤顶出力值X（KN）-油压Y（MPa）关系方程。当千斤顶编号为D712029；油压表编号为C1203086时，Y=0.02296 X+0.03，于是得到以下结论：边跨边梁N1钢绞线:10%FN1时油压表读数： Y=0.02296 (2148.30.1)+0.03=4.96 MPa;20%FN1时油压表读数：Y=0.02296 (2148.30.2) +0.03=9.89MPa;100% FN1时油压表读数：Y=0.02296 2148.3+0.03=49.35 MPa;N2钢绞线:10%FN2时油压表读数：Y=0.02296 (19530.1) +0.03=4.51 MPa;20%FN2时油压表读数：Y=0.02296 (19530.2) +0.03=9.00 MPa;50%FN2时油压表读数：Y=0.02296 (19530.5) +0.03=22.45 MPa;100% FN2时油压表读数：Y=0.02296 1953+0.03=44.87 MPa;N3钢绞线:10%FN2时油压表读数：Y=0.02296 (19530.1) +0.03=4.51 MPa;20%FN2时油压表读数：Y=0.02296 (19530.2) +0.03=9.00 MPa;100% FN2时油压表读数：Y=0.02296 1953+0.03=44.87 MPa;边跨中梁N1钢绞线:10%FN1时油压表读数： Y=0.02296 (1757.70.1) +0.03=4.07 MPa;20%FN1时油压表读数：Y=0.02296 (1757.70.2) +0.03=8.10 MPa;100% FN1时油压表读数：Y=0.022961757.7+0.03=40.39 MPa;N2钢绞线:10%FN1时油压表读数： Y=0.02296 (1757.70.1) +0.03=4.07 MPa;20%FN1时油压表读数：Y=0.02296 (1757.70.2) +0.03=8.10 MPa;50%FN1时油压表读数：Y=0.02296 (1757.70.5) +0.03=20.21 MPa;100% FN1时油压表读数：Y=0.022961757.7+0.03=40.39 MPa;N3钢绞线:10%FN1时油压表读数： Y=0.02296 (1757.70.1) +0.03=4.07 MPa;20%FN1时油压表读数：Y=0.02296 (1757.70.2) +0.03=8.10 MPa;100% FN1时油压表读数：Y=0.022961757.7+0.03=40.39 MPa;中跨边梁N1钢绞线:10%FN1时油压表读数： Y=0.02296 (19530.1) +0.03=4.51MPa;20%FN1时油压表读数：Y=0.02296 (19530.2) +0.03=9.00MPa;100% FN1时油压表读数：Y=0.022961953+0.03=44.87MPa;N2钢绞线:10%FN1时油压表读数： Y=0.02296 (1757.70.1) +0.03=4.07MPa;20%FN1时油压表读数：Y=0.02296 (1757.70.2) +0.03=8.10MPa;50%FN1时油压表读数：Y=0.02296 (1757.70.5) +0.03=20.21MPa;100% FN1时油压表读数：Y=0.022961757.7+0.03=40.39MPa;N3钢绞线:10%FN1时油压表读数： Y=0.02296 (1757.70.1) +0.03=4.07MPa;20%FN1时油压表读数：Y=0.02296 (1757.70.2) +0.03=8.10MPa;100% FN1时油压表读数：Y=0.022961757.7+0.03=40.39MPa;中跨中梁N1钢绞线:10%FN1时油压表读数： Y=0.02296 (1757.70.1) +0.03=4.07MPa;20%FN1时油压表读数：Y=0.02296 (1757.70.2) +0.03=8.10MPa;100% FN1时油压表读数：Y=0.022961757.7+0.03=40.39MPa;N2钢绞线:10%FN1时油压表读数： Y=0.02296 (1562.40.1) +0.03=3.62MPa;20%FN1时油压表读数：Y=0.02296 (