4标桥梁监控报告2016-1月

四标桥梁监控情况报告（2016年1月）第一部分北大溜桥1桥梁概况1.1.设计说明北大溜为规划四级航道，大桥跨越北大溜主跨设计采用悬臂梁结构，16、17和18跨孔跨布置为左、右幅三跨一联（40+70+40）m。悬臂分段施工的形式为左、右幅1#～8#分8段对称施工。1.2.箱梁结构形式箱梁采用单箱单室、变高度、变截面结构。箱梁顶宽13.25m，顶板厚度30～85cm，腹板厚度50～70cm，底板厚度30～60cm；中支点梁高4.2m，跨中梁高为2.2m，边支座中心线距梁端0.5m，边支座横桥向中心距5.75m，中支座横桥向中心距5.25m。在端支点、中支点共设置4个横隔板。横隔板及梁端底板设有孔洞，供检查人员通过。半幅全联连续梁共有39个梁段，其中支架现浇0号块两段、支架现浇直线段两段、合拢段三段、悬臂浇注32段。北大溜3跨连续梁节段划分梁段内设置了纵、横、竖三向预应力筋体系，纵向、横向预应力体系采用fpk=1860MPa，弹性模量为Ep=195GPa，公称直径为15.2mm高强度、低松弛，钢绞线，符合GB/T5224国家标准；竖向预应力采用fpk=930MPa，弹性模量为Ep=200GPa预应力混凝土用螺纹钢筋。管道形成采用塑料波纹管，锚具应符合《预应力锚具、夹具和连接器》（GB/T14370-2000）。2施工进度本工程于2014年11月25日开工，梁部合拢时间为2015年12月12日。3监控结果3.1桥面线型（标高）监控结果右幅16#，17#墩连续梁合龙后的标高测量情况：北大溜桥右幅悬灌实测高程表里程右1.0米右7.125米右13.25米实测设计高差实测设高实设高计差测计差-46460.46460.43290501K77+19147.06247.050.012.9.901.7.85-4646-046460.352132401K77+19547.08447.070.015.9.9.0.8.81046460.4646.K77+197K77+201K77+205K77+209K77+212K77+215.547.08647.08147.13247.13947.15147.16847.0847.10.008-0.020.0180.0090.01.9.901.8.80761483315046460.4646..9.901.8.809785751060460.4646.47.900.8.80998369147.1147.1347.1447.15404647-04646..9.0.0.9.8091103851804747.0.0.9.80324646.0.01079611-4747-046460.0.0.0.8.9.0.014231890902-4747-046460.34112101K77+21947.17747.170.011.0.0.0.9.91-4747-046460.451133101804747-04646..0.0.0.9.90661484107K77+222K77+22547.16347.17947.1847.19-0.01-0.01.0.0.0.9.9K77+23747.23547.220.01747470.46460.1.101.9.9.178773014047.14646.470.K77+240K77+24347.23547.25247.2347.230.010.02.9.901.10196816-0.4747.1.1.9.9317687146460.0201-47470.46460.K77+246.547.25147.240.012.1.101.9.932278940160.1.1.0.047.04747-047K77+25047.23547.23547.2547.25-0.01-0.021211104747-04747..1.1.0.0.00132170512-4747-046470K77+253.5.231951015-K77+257K77+26147.24447.27547.2647.26-0.010.015.1.1.0.9.047470.47470..1.101.0.05470415011-0.0474747470..1.1.0.001K77+265K77+26747.2747.2647.270.0060.014540319160.4747.1.1.0.06447470.0247.2790321047470.4747..1.101.0.006523523124747-047470.1.1.0.0.0.45136240K77+271K77+27547.28647.2847.2747.270.0180.0111204747-04747.K22+279K77+28347.2547.2747.27-0.02-0.01.1.1.0.0.0035242515-47470.47470.65116250047.259.1.101.0.09-4747-047470.35212301K77+28747.2547.27-0.02.1.1.0.0.03-4747-047470.341152200704747-04747..1.1.0.0.00242361917K77+290K77+29447.27447.27847.2747.260.0070.014.1.1.0.0.04747-047470.341271701K77+297K77+30047.27847.24847.2647.260.016-0.01.1.1.0.0.047470.47470..1.101.0.054634140204747-04747..1.1.0.0.0023122112K77+303K77+31547.23947.24647.2647.24-0.020.01-47-04646047.1.0.9.9..112819101-0.474746460..1.1.9.901K77+31847.24247.230.01202178515-47.110.46460.2677801147.1K77+321K77+32547.20847.22547.2247.21-0.020.01101.9.947470.46460.1.001.9.9.928669017470.4646047.1..001.9.985716101K77+328K77+33247.22447.20447.2147.20.0180.00947470.46460..0.000.9.98787502-4747-046460.4522128007047470.4646..0.001.9.90648321517K77+339K77+34347.15947.1747.1747.16-0.010.01.0.0.0.9.947470.46460.439170701K77+345K77+34947.1447.1547.14-0.01-0.01.0.000.9.947470.46460.47.129.0.001.9.8321139302合龙后桥面施工高程与设计差值平均仅2mm。左幅16#，17#墩连续梁合龙后的标高测量情况：北大溜桥左幅悬灌实测高程表右1.0米设计高差实测设计高差实测设计高差右右7.12513.25里程实测K77+19147.03947.05-0.01146.93946.9270.01246.81546.8050.01K77+19547.05147.069-0.01846.93146.946-0.01546.81246.824-0.012K77+19747.08547.0780.00746.96646.9550.01146.82446.833-0.009K77+20147.1147.0960.01446.99146.9730.01846.86346.8510.012K77+20547.1347.1140.01647.00546.9910.01446.85946.869-0.01K77+20947.11947.13-0.01146.99347.007-0.01446.8746.885-0.015K77+21247.12547.141-0.01647.02847.0180.0146.90746.8960.011K77+215.47.16447.1540.0147.01947.031-0.01246.88946.909-0.025K77+21947.17847.1660.01247.03447.043-0.00946.92846.9210.007K77+22247.16847.176-0.00847.04347.053-0.0146.94546.9310.014K77+22547.247.1860.01447.04847.063-0.01546.95746.9410.016K77+23747.20547.218-0.01347.08447.095-0.01146.98546.9730.012K77+24047.21847.225-0.00747.11947.1020.01746.96546.98-0.015K77+24347.24947.2320.01747.11947.1090.0146.97646.987-0.011K77+246.47.24947.2390.0147.10547.116-0.01147.00946.9940.0155K77+25047.26547.2450.0247.13347.1220.01147.006470.006K77+253.547.26247.250.01247.14547.1270.01846.99447.005-0.011K77+25747.2447.255-0.01547.14147.1320.00947.02747.010.017K77+26147.24947.26-0.01147.12347.137-0.01447.02547.0150.01K77+26547.27947.2640.01547.15147.1410.0147.03947.0190.02K77+26747.27147.2650.00647.1347.142-0.01247.01247.02-0.008K77+27147.28247.2680.01447.13647.145-0.00947.03747.0230.014K77+27547.28747.2690.01847.15847.1460.01247.01147.024-0.013K22+27947.28147.270.01147.13247.147-0.01547.01847.025-0.007K77+28347.2547.27-0.0247.13647.147-0.01147.04247.0250.017K77+28747.28647.2680.01847.1647.1450.01547.03347.0230.01K77+29047.27647.2670.00947.1547.1440.00647.04247.0220.02K77+29447.2547.264-0.01447.15547.1410.01447.03147.0190.012K77+29747.27247.2620.0147.15747.1390.01847.02647.0170.009K77+30047.24747.259-0.01247.14747.1360.01146.99947.014-0.015K77+30347.24647.255-0.00947.11247.132-0.0246.99947.01-0.011K77+31547.25447.2360.01847.1247.1130.00746.97546.991-0.016K77+31847.24247.230.01247.12147.1070.01446.99546.9850.01K77+32147.21347.223-0.0147.11647.10.01646.9946.9780.012K77+32547.19947.214-0.01547.10347.0910.01246.98946.9690.02K77+32847.19547.206-0.01147.06847.083-0.01546.97346.9610.012K77+33247.21247.1950.01747.06147.072-0.01146.9446.95-0.01K77+33947.18347.1730.0147.06547.050.01546.91346.928-0.015K77+34347.1847.160.0247.04347.0370.00646.90446.915-0.011K77+34547.16647.1520.01447.04547.0290.01646.92446.9070.017K77+34947.15447.1380.01647.02647.0150.01146.90346.8930.01合龙后桥面高程与设计差值平均2.8mm。北大溜连续梁右幅全桥桥面高程与设计差值平均2mm，左幅全桥桥面高程与设计差值平均2.8mm，边跨、中跨的合龙误差也都在15mm以内，说明桥梁总体线型监控良好，连续梁线形监控线形满足规范要求。第二部分蔡河桥1桥梁概况1.1.设计说明蔡河桥为规划四级航道，大桥跨越蔡河主跨设计采用悬臂梁结构，15、16和17跨孔跨布置为左、右幅三跨一联（40+70+40）m。悬臂分段施工的形式为左、右幅1#～8#分8段对称施工。1.2.箱梁结构形式箱梁采用单箱单室、变高度、变截面结构。箱梁顶宽13.25m，顶板厚度30～85cm，腹板厚度50～70cm，底板厚度30～60cm；中支点梁高4.2m，跨中梁高为2.2m，边支座中心线距梁端0.5m，边支座横桥向中心距5.75m，中支座横桥向中心距5.25m。在端支点、中支点共设置4个横隔板。横隔板及梁端底板设有孔洞，供检查人员通过。半幅全联连续梁共有39个梁段，其中支架现浇0号块两段、支架现浇直线段两段、合拢段三段、悬臂浇注32段。蔡河桥3跨连续梁节段划分梁段内设置了纵、横、竖三向预应力筋体系，纵向、横向预应力体系采用fpk=1860MPa，弹性模量为Ep=195GPa，公称直径为15.2mm高强度、低松弛，钢绞线，符合GB/T5224国家标准；竖向预应力采用fpk=930MPa，弹性模量为Ep=200GPa预应力混凝土用螺纹钢筋。管道形成采用塑料波纹管，锚具应符合《预应力锚具、夹具和连接器》（GB/T14370-2000）。2施工进度本工程于2015年01月10日开工，梁部合拢时间为2015年12月26日。3监控结果3.1桥面线型（标高）监控结果右幅15#，16#墩连续梁合龙后的标高测量情况：右1.0右7.125右13.25里程米米米实测设计高差实测设计高差实测设计高差K72+6947.0547.0547.0747.0847.0947.1-0.0146.9446.93-0.0146.81546.803-0.012-0.0146.9646.94-0.0146.83346.822-0.011-0.0246.9446.950.01146.81446.8310.017-0.0246.9646.970.00946.86446.849-0.01508K72+6947.0749K72+6947.0962K72+7047.1009K72+7047.090.0060.014746.99-0.0146.88146.866-0.01545K72+7047.1147.1247.1447.0247-0.0246.86746.8780.01173K72+7147.14-0.0147.0347.02-0.0146.89746.893-0.00417K72+7147.1447.150.01147.0147.030.01746.91246.906-0.0064.5K72+7147.1447.1647.1747.1847.2147.2247.2247.2347.2447.2447.2447.2547.2547.2547.2547.250.01447.0547.04-0.0146.93146.918-0.013-0.0247.0747.05-0.0246.94146.927-0.0140.00947.0747.06-0.0146.94946.936-0.013-0.0247.0747.090.01846.97746.967-0.01-0.0247.0947.10.00746.98646.973-0.0130.01647.0947.10.00946.96546.9790.0140.01147.1247.11-0.0146.97146.9850.014-0.0247.1347.11-0.0146.9846.9910.011-0.0147.1447.12-0.0246.98246.9950.013-0.0247.1447.12-0.0247.01146.999-0.012-0.0247.1447.13-0.0247.01647.003-0.0130.00847.1447.13-0.0247.00147.0060.00589K72+7247.1818K72+7247.1742K72+7347.2361K72+7347.2395K72+7447.2028K72+7447.215.59K72+7447.2595K72+7547.242.58K72+7547.2569K72+7647.2606K72+7647.2443K72+7747.230.0247.1247.130.0094747.0080.00803K72+7747.260.01347.1447.130.01447.01947.0080.01146K72+7747.260.0147.1447.130.01147.00147.008-0.00773合龙后桥面施工高程与设计差值平均仅0.2mm。左幅15#，16#墩连续梁合龙后的标高测量情况：右1.0右7.125右13.25里程米米米实测设计高差实测设计高差实测设计高差K72+6947.0647.048-0.01346.9346.926-0.00446.81546.803-0.01201K72+6947.0847.067-0.01546.95946.944-0.01546.8446.822-0.01842K72+6947.0647.07647.0940.01546.94146.9530.01246.84546.831-0.0140.01346.98446.971-0.01346.85746.849-0.00861K72+7047.080K72+704147.1247.101-0.01946.99946.988-0.01146.85246.8660.014K72+7047.1347.123-0.01547.01147-0.01146.88846.878-0.0178K72+7147.1247.13847.1510.01747.00147.0150.01446.90546.893-0.0120.00947.01547.0280.01346.91946.906-0.01311K72+7147.144.52K72+7147.1747.163-0.01347.05147.04-0.01146.92846.918-0.0186K72+7247.1847.172-0.01647.06647.049-0.01746.94146.927-0.01418K72+7247.1947.181-0.01447.06947.058-0.01146.91846.9360.01845K72+7347.2047.21247.21847.2240