芜湖长江公路跨宁安城际铁路混凝土连续箱梁桥悬臂浇筑施工工艺

Wuhu Yangtze River Highway across the inter city railway concrete continuous box girder bridge cantilever construction technology

芜湖长江公路跨宁安城际铁路混凝土连续箱梁桥采用悬臂浇筑施,其主跨为36m+65m+36m,左幅、右幅宽度不同,主桥右幅箱梁采用三角挂篮进行施工,左幅箱梁采用菱形挂篮进行施工,边跨不设置合拢段,采用一次整体现浇,合拢顺序先边跨后中跨,边跨施工整体现浇成型,达到一定强度后张拉预应力,该工程作为跨城际铁路桥梁施工进度紧张,质量要求高。

Wuhu Yangtze River inter - city railway inter - Ninghn continuous concrete box girder bridge using cantilever facilities. Its main span is 36m ＋ 65m ＋ 36m, while the left, and the right width of bridge is different.The right main beam of the box girder uses triangular hanging basket construction, the left box beam uses diamond - shaped hanging basket construction, the sidespan doesnl set the closure section, and adopts the integral cast - in strength, tension prestressing is appied. As a trans -city railway bridge construction schedule ,theproject need early completion and meets high quality requirements.