世界最大跨径四主缆悬索桥燕矶长江大桥合龙 中新网武汉11月22日电 (葛利龙 陆落义)随着最后一段巨型钢桁梁精准吊装到位，由湖北交投投资、中 交二航局承建的湖北燕矶长江大桥22日顺利合龙，意味着这座创下"世界最大跨径四主缆悬索桥"纪录的 桥梁主体完工。 燕矶长江大桥横跨鄂州、黄冈两地，采用"一跨过江"的设计，是目前世界最大跨径四主缆悬索桥。项目 全长约26千米，大桥主跨1860米，上层为6车道高速公路，设计时速100公里，下层为4车道城市快速 路，设计时速80公里。 由于上受花湖机场航空限高影响，下要满足长江通航需要，燕矶长江大桥主塔高度仅184米，垂跨比达 到了千米级悬索桥中前所未有的1:15。 为克服这一技术难题，建设团队采用世界首创不同垂度四主缆双层悬索桥结构体系，其同侧主缆高度、 长度、垂度均不同，以此分散荷载，并提高桥梁的稳定性，优化索鞍及主缆规模，使主缆受力更合理。 来源：中国新闻网 编辑：董湘依 广告等商务合作，请点击这里 图为湖北燕矶长江大桥。 中交二航局供图 图为湖北燕矶长江大桥。 中交二航局供图 自项目开工以来，建设团队推动四主缆悬索桥施工关键技术研究和桥梁智能化建造成套技术研究与应 用。 ...

燕矶长江大桥横跨鄂州、黄冈两地，采用"一跨过江"设计，项目全长约26千米，大桥主跨1860米，上层为六车道高速公路，设计时速100公 里，下层为四车道城市快速路，设计时速80公里。 11月22日，湖北燕矶长江大桥顺利合龙。（葛利龙 摄/新华社发） 因上受花湖机场航空限高影响，下要满足长江通航需要，燕矶长江大桥主塔高度仅184米，垂跨比也达到了千米级悬索桥中前所未有的1:15。 为解决这一结构难题，建设团队采用不同垂度四主缆双层悬索桥结构体系，其同侧主缆高度、长度、垂度均不同，以此分散荷载，并提高桥梁的 稳定性，且优化了索鞍及主缆规模，使主缆受力更合理。 燕矶长江大桥所在江面宽阔、水文条件复杂、四主缆钢桁梁吊装精度要求高。"为保障大桥顺利合龙，我们精确计算温度、风力等环境因素对 钢桁梁形变的影响，最终钢桁梁以毫米级的精度平稳嵌入预定位置，南北两岸顺利'牵手'。"中交二航局燕矶长江大桥项目总工程师罗航说。 11月22日上午，随着最后一段巨型钢桁梁精准吊装到位，由湖北交投投资、中交二航局和中铁大桥局承建的湖北燕矶长江大桥顺利合龙，长 江武汉段再添一道"飞虹"。 11月22日，湖北燕矶长江大桥顺利合龙。（陆落义 摄/ ...

Core Viewpoint - The G30 Lianhuo Expressway Hatu Section expansion project features the largest rotating bridge in Xinjiang, utilizing innovative construction methods to minimize disruption to railway operations [1][2]. Group 1: Project Overview - The G30 Lianhuo Expressway Hatu Section expansion project spans 345 kilometers and is a key project in the national expressway network [2]. - The project includes the construction of a T-shaped continuous beam bridge that was rotated 61 degrees with millimeter-level precision, completed in 70 minutes [1]. Group 2: Construction Techniques - The project team overcame harsh weather and complex geological conditions by integrating information technology into construction processes, employing techniques such as 3D intelligent paving and unmanned compaction machinery [2]. - The use of the rotation method for bridge construction was chosen to avoid risks to railway operations and to ensure zero disruption during the construction phase [1]. Group 3: Significance - Upon completion, the expansion project is expected to significantly enhance regional traffic efficiency and contribute to the high-quality development of transportation in Xinjiang, as well as the overall national transportation network [2].

黄桷沱长江大桥是渝长高速复线连接道工程的控制性节点工程，联系重庆主城区长江南北两岸，全长 1260米，主跨765米，为单跨悬吊双塔三跨连续钢桁梁悬索桥，是世界在建最大跨径公轨两用悬索桥， 大桥采用双层桥面设计，上层为6车道内环快速路，下层中央预留双向轨道，两侧为4车道城市主干路。 作者：陈诚、黎华玲、林意俊 近日，位于重庆的黄桷沱长江大桥顺利完成首节钢桁梁吊装工作，标志着大桥正式转入主梁结构拼装阶 段，为主桥合龙奠定坚实基础。 ...

Core Viewpoint - The successful completion of the steel box girder rotation for the upgrade of the Shenhai Expressway marks a significant technical achievement, laying a solid foundation for the project's full connectivity [1][5]. Group 1: Project Overview - The Shenhai Expressway spans 359.079 kilometers within Shandong Province and is being upgraded to a dual eight-lane highway with a design speed of 120 km/h [3]. - The bridge, constructed by China Railway 10th Bureau, is located near the northern outer ring of Jiaozhou City and measures 275 meters in length [3]. - The steel box girder used in the bridge weighs 5,286 tons, making it the largest unequal span railway crossing steel box girder project in Shandong Province [3]. Group 2: Material and Structural Innovations - The entire bridge is made of weathering steel, which eliminates the need for traditional rust-proof coatings, thus saving construction time and extending the bridge's lifespan while reducing future maintenance costs [3][4]. - The bridge employs a fully welded structure, moving away from traditional bolt connections to mitigate risks associated with bolt loosening and replacement difficulties [3][4]. Group 3: Construction Challenges and Solutions - The bridge crosses two major railway lines, with over a hundred passenger and freight trains passing through the construction area daily, necessitating precise operations within limited time windows [4]. - Advanced technologies such as hole detection instruments and electronic curtain systems were utilized to ensure safety and precision during the critical rotation process [4]. - The project team implemented intelligent construction techniques to accurately calculate traction and safety factors, establishing a dynamic correction model to support the precise rotation [4][5]. Group 4: Strategic Importance - The Shenhai Expressway upgrade is a key project under Shandong Province's "14th Five-Year Plan" for comprehensive transportation, connecting several strategic development zones and important transportation hubs [5]. - Upon completion, the project is expected to enhance regional transportation service levels, optimize network structure, and promote economic integration in the Jiaodong Economic Circle [5].

Core Points - The Yili River Third Bridge, the first three-tower four-span "O" shape cable-stayed bridge in China, officially opened on November 11, marking a significant breakthrough in bridge structure design and contributing to the Belt and Road Initiative and high-quality development in Xinjiang [1][2] - The bridge spans 2028 meters in length and 23.5 meters in width, designed for a dual four-lane highway standard with a speed limit of 60 km/h [1] - The main bridge features a unique design with a main span of 492 meters and a central tower height of 51 meters, constructed using C50 concrete and "O" shape steel structures [1] Project Details - The bridge connects the Horgos Economic Development Zone in Yining to the north and the northern side of the Chabuchar Yili River National Wetland Park to the south, significantly reducing travel time from 1.5 hours to several minutes [2] - It links key areas such as Horgos City, Yining City, Chabuchar County, and Zhaosu County, facilitating the transportation of specialty agricultural products and tourism development [2] - The project involved the manufacturing, installation, and coating of approximately 4532 tons of steel structures, with significant challenges in construction due to complex design and environmental factors [1]

Core Viewpoint - The company plans to strategically exit its magnetic levitation and bridge component businesses while focusing on clean energy generation through significant asset restructuring involving the sale and acquisition of various subsidiaries and assets [1][3]. Group 1: Asset Transactions - The company intends to sell 100% equity of Chuanfa Maglev and related assets to Shudao Group's subsidiary, Shudao Rail Transit Group, for 1.392 billion yuan [2]. - The company will also sell 100% equity of Xinzhong Jiaoke and related assets to Sichuan Road and Bridge for an undisclosed amount, with the transaction aimed at enhancing the latter's competitive edge in bridge construction [2]. - The company plans to acquire 60% equity of Shudao Clean Energy from Shudao Group for 5.814 billion yuan, with the transaction constituting a major asset restructuring [1][4]. Group 2: Financial Performance - The company has reported continuous losses for four consecutive years, with total losses amounting to 1.55 billion yuan from 2021 to 2024 [8]. - The company's net profits for the years 2021 to 2024 were -233 million yuan, -566 million yuan, -342 million yuan, and -409 million yuan, respectively [8]. - As of the first three quarters of 2025, the company reported a loss of 42.29 million yuan [8]. Group 3: Strategic Shift - The company aims to focus on clean energy generation, marking a significant shift from its previous core businesses, which have struggled to achieve market breakthroughs and profitability [3][10]. - The decision to exit the magnetic levitation and bridge component sectors is driven by the low conversion efficiency of maglev technology and increasing competition in the bridge component industry [2][10]. Group 4: Leadership Changes - The company's chairman resigned in September 2025, following a period of significant financial losses, with total losses exceeding 1.8 billion yuan during his tenure [10].

Core Points - The Tongling Yangtze River Bridge, the world's first dual-use double-deck cable-stayed and suspension bridge, has officially opened [1][2] - The bridge spans a total length of 11.9 kilometers, with a 2.7-kilometer section for both road and rail, and connects to existing highways and railways [1] - The bridge features a unique hybrid design that combines the strengths of cable-stayed and suspension bridges, ensuring both stability and large span capabilities [1][2] Summary by Sections Bridge Specifications - The main span of the bridge is 988 meters, marking the first use of a cable-stayed-suspension hybrid system for a kilometer-level steel truss bridge globally [2] - The design minimizes the impact on navigation while maximizing load-bearing capacity by placing the main tower on the shore to avoid flood control barriers [2] Strategic Importance - The Tongling Yangtze River Bridge is part of the "Yangtze River Mainline Crossing Channel Layout Plan (2020-2035)" and is a key project for implementing national strategies such as the Belt and Road Initiative and the integration of the Yangtze River Delta [2]

Core Viewpoint - The successful completion of the Xiangshan Bridge, the world's largest span double-deck highway steel truss cable-stayed bridge, marks a significant milestone for the Zhongshan Ring Expressway project, enhancing connectivity in the Greater Bay Area [1] Group 1: Project Details - The Xiangshan Bridge has a total length of 1,776 meters and a main span of 880 meters, designed with an upper and lower double-deck of 8+8 lanes [1] - The Zhongshan Ring Expressway spans 55.46 kilometers, connecting Foshan, Zhongshan, and Zhuhai, and is being implemented in two phases [1] Group 2: Design Innovations - The design incorporates several innovations, including a dense crossbeam and strong chord system for the steel truss, which enhances structural simplicity, lateral stiffness, and fatigue resistance [1] - The bridge features a side-mounted pressure-type steel tooth plate anchoring structure for the first time in a double truss beam, reducing the transverse width and improving aesthetics [1] - A concrete panel weight-bearing solution is used to improve the load-bearing capacity of the bridge deck [1] - The bridge's distinctive no-lower-crossbeam herringbone tower design offers modern aesthetics and excellent wind resistance [1] Group 3: Strategic Importance - The completion of the Xiangshan Bridge accelerates the overall construction of the first phase of the Zhongshan Ring Expressway, facilitating direct connections to the Shenzhen-Zhongshan Channel and enhancing the highway network in the Greater Bay Area [1] - The project aims to strengthen interconnectivity among core cities in the Greater Bay Area, providing robust transportation support for industrial collaboration and innovation [1]

Core Points - The Chongming Grand Bridge is a key project of the Huhang Railway (North Yangtze River High-Speed Railway) and an important part of the national "eight vertical and eight horizontal" high-speed railway network [6] - The bridge will significantly enhance the integration of Nantong and Chongming into the Yangtze River Delta economic development pattern, accelerating regional economic and social development [6] Summary by Sections Construction Progress - The bridge spans 19.07 kilometers, with a total of 577 box girders required, of which 306 have been produced and 202 have been installed [5] - The construction team plans to complete all box girder manufacturing by May next year and installation by July [5] Strategic Importance - The completion of the Chongming Grand Bridge will create a new landscape for the Yangtze River estuary and the construction of a world-class ecological island [6]