11月20日，随着3号墩E28E29节段钢梁顺利吊装就位，由中铁大桥局承建的北沿江(沪渝蓉)高铁崇启公铁长江大桥主通航孔桥南边跨钢梁吊装全部完成。 校对胡妍璐 现场技术负责人江湧介绍，随着南北边跨钢梁相继吊装就位和顶推施工的完成，崇启公铁长江大桥将开始边跨钢梁落梁、支座安装和体系转换，然后进行 边跨桥面板安装与架板机安装，下一步进行中跨钢梁和斜拉索的安装。 据悉，11月下旬将完成南边跨顶推作业，并与非通航孔钢梁在1号墩"会合"。主通航孔3、4号墩预计在明年"五一"前实现跨中合龙。 崇启公铁长江大桥是上海至南京至合肥高铁控制性节点工程，全长4.09公里，横跨长江入海口北支航道。其构造为双层布置的公铁两用桥，上层为双向6 车道、时速100公里的一级公路，下层为时速350公里的双线高速铁路+时速250公里的双线城际铁路。是世界最大跨度双塔双索面公铁两用无砟轨道斜拉 桥。 通讯员崔永兴王世琪孟庆虎 扬子晚报/紫牛新闻记者笪越 崇启公铁长江大桥主通航孔钢桁梁总长992米，主跨400米，共6个桥墩，其中上海侧南边跨3号墩至1号墩分15个节段吊装，长322米，公路面宽33米，铁路 面宽25.7米。本轮最后一吊边跨钢梁重93 ...

Core Points - The completion of the last road beam assembly for the non-navigation hole of the Chongqi Railway and Highway Yangtze River Bridge marks a significant milestone in the construction process [1][3] - The bridge, with a total length of 4.09 kilometers, is a key control project for the high-speed rail connecting Shanghai, Nanjing, and Hefei, and is recognized as the world's largest span double-tower, double-cable surface railway and highway dual-use cable-stayed bridge [5] Group 1 - The non-navigation hole bridge spans 2,197.4 meters and consists of 16 piers, with 6 piers on the north side serving as the main navigation hole and 10 piers on the south side as non-navigation holes [1] - The non-navigation hole bridge features an 11-hole continuous steel truss beam with a total span arrangement of 99.2 + 9×112 + 98.2 = 1,205.4 meters, utilizing a double main truss triangular arrangement [1] - The construction employed a "shore-side scattered assembly + multi-point synchronous pushing" method due to water depth restrictions, achieving a total pushing distance of 1,267 meters and a total pushing weight of 38,900 tons, ranking first in domestic similar bridge pushing distance and second in weight [1] Group 2 - The completion of the non-navigation hole bridge's road beam assembly facilitates the final round of pushing and subsequent integration with the main navigation hole steel beams, as well as the installation of the road bridge deck [3] - The project is expected to create a fast new corridor between the Shanghai metropolitan area, Nanjing metropolitan area, and Hefei metropolitan area, optimizing the railway network layout along the Yangtze River and supporting the coordinated development of the Yangtze Economic Belt [5]

校对陶善工 崇启公铁长江大桥主通航孔钢桁梁总长992米，其中上海侧3号墩分15吊，共512.4米,重18743吨。E25是主通航孔钢桁梁上海侧(E1-E29)唯一一个单节间钢 桁梁，11月份完成边跨吊装架设顶推作业，将与非通航孔钢梁在1号墩"会合"。主通航孔3、4号墩预计在明年一季度实现主桥跨中合龙。 崇启公铁长江大桥是上海至南京至合肥高铁控制性节点工程，全长4.09公里，横跨长江入海口北支航道。其构造为双层布置的公铁两用桥，上层为双向6 车道、时速100公里的一级公路，下层为时速350公里的双线高速铁路+时速250公里的双线城际铁路。是世界最大跨度双塔双索面公铁两用无砟轨道斜拉 桥。 扬子晚报网10月25日讯(通讯员崔永兴王世琪杨涛记者笪越)10月25日，随着3号墩E25号节段钢梁顺利吊装就位，由中铁大桥局承建的北沿江(沪渝蓉)高铁 崇启公铁长江大桥南北主通航孔桥钢梁已吊装架设顶推13个节段。此次吊装的钢梁重523.9吨，长12.5米。南北两岸主通航孔第13吊钢梁吊装到位后总重已 过2万吨，累计长度各300米，11月份将与非通航孔钢梁在1号墩"会合"。 ...

Core Points - The completion of the main towers 3 and 4 of the Chongqi Railway and Highway Yangtze River Bridge marks a significant milestone in the construction of the world's largest span railway and highway cable-stayed bridge [1][2] - The bridge, part of the Shanghai-Chongqing-Lanzhou high-speed railway, spans 4.09 kilometers and features a main span of 400 meters, designed for high-speed rail and intercity rail traffic [1][2] Summary by Sections Construction Details - The main towers are H-shaped reinforced concrete structures, each 153 meters tall, consisting of seven parts including the tower base and top [2] - The project faced challenges due to complex geological conditions, particularly soft sandy soil, which complicated the construction of the foundation piles [2] - The bridge's construction highlights include a total steel beam push length of 1205.4 meters, a new structural design combining concrete slabs and steel trusses, and precise control of construction processes [2] Strategic Importance - Upon completion, the bridge will enhance the railway network layout along the Yangtze River, contributing to the integrated high-quality development of the Yangtze River Delta region [4]

Core Points - The construction of the Chongqi Railway and Highway Yangtze River Bridge, the world's largest span railway and highway cable-stayed bridge, is currently underway, marking a significant milestone in infrastructure development [1][3] - The bridge will allow for a high-speed crossing of the Yangtze River at a speed of 350 km/h without reduction, enhancing transportation efficiency [1][5] Group 1: Bridge Specifications - The Chongqi Bridge spans 4.09 kilometers and features a dual-layer design, with the upper layer accommodating a six-lane highway and the lower layer designed for high-speed and intercity railways [3][4] - The main navigation span of the bridge reaches 400 meters, making it the largest span railway and highway cable-stayed bridge under construction globally [3][4] Group 2: Construction Challenges and Innovations - The construction faced challenges due to complex geological conditions, including soft sandy soil, and tidal influences affecting the construction process [4] - The project has achieved several records, including the longest steel beam push length of 1205.4 meters for a railway and highway bridge, and the implementation of a new structural design combining concrete slabs and steel trusses [4] Group 3: Economic and Regional Impact - The completion of the bridge is expected to optimize the railway network layout along the Yangtze River, contributing to the integrated development of the Yangtze River Delta and promoting high-quality growth in the region [5]

扬子晚报网9月28日讯(记者笪越通讯员崔永兴王世琪杨涛)9月27日22时，由中铁大桥局承建的北沿江(沪渝蓉)高铁崇启公铁长江大桥南引桥高铁线跨长岛 大道连续梁顺利合拢。 BAR 25 1999 . 41 Stual 41 the 新闻 색 4 6 187 2017 t and the states of the states of the states of the states of the states of the station of the states of the station of the states of the station of the state of the statio 崇启公铁长江大桥是上海至南京至合肥高铁控制性节点工程，全长4.09公里，横跨长江入海口北支航道。大桥建成后，在上海大都市圈、南京都市圈和合 肥都市圈间建起一条快速新通道，对于优化沿长江地区铁路网布局、服务长江经济带协同发展，推动长三角高质量一体化发展等具有重要意义。 y 20 or 2016 2 ENTHO the first **新闻 崇启公铁长江大桥南引桥位于江苏省启东市启隆镇境内，上层是高速公路，下层为 ...