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本文通过介绍忠县长江大桥水中高桩承台钢承箱施工技术,供同类型桥梁施工借鉴。工程概况石忠高速公路B19标忠县长江大桥为沪蓉国道主干线支线分水岭(鄂渝界)至忠县高速公路跨越长江的一座特大型桥梁。主桥为预应力混凝土双塔双索面斜拉桥,孔跨布置为(205+460+205)m,石柱岸主引桥为(112+200+112)的的连续刚构桥,引桥为3×35m+3×40m的预应力混凝土连续T梁。忠县岸引桥由一联4×40m和3联5×30m简支变连续T梁组成;该桥为石忠高速控制性工程,也是中国重庆第一斜拉桥。主桥设计为全漂浮体系。主梁形式为边主梁,∏型断面,标准节段长8m。索塔为H型,高
This article introduces the Zhongxian Yangtze River Bridge water bearing pile bearing steel construction technology for the same type of bridge construction reference. Project Overview Shizhong Expressway B19 Beizhong County Changjiang River Bridge is an extra large bridge spanning the Yangtze River between the watershed of Hubei branch of EHC and Zhongxian Expressway. The main bridge is a prestressed concrete double-tower double-cable surface cable-stayed bridge with a hole span of (205 + 460 + 205) m and a main rigid-framed bridge of (112 + 200 + 112) × 35m + 3 × 40m of prestressed concrete continuous T beam. The Zhongxian shore approach bridge consists of a 4 × 40m linkage and a 3-way 5 × 30m simple continuous variable T-beam. The bridge is a control project of Shi Zhong High-speed and is also the first cable-stayed bridge in Chongqing, China. The main bridge is designed as a full floating system. Main beam in the form of side girders, Π type section, the standard section length 8m. Tower for the H-type, high