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]

Core Insights - The completion of the main tower for the Pengjiazai Township interconnectivity project marks a significant milestone, transitioning the project from foundational work to the upper structure phase, which is crucial for the subsequent construction activities [1][2] - The bridge, designed as a single-cable-stayed structure with a diamond-shaped main tower, symbolizes urban vitality and represents a pioneering achievement in structural design and construction technology in China [1] Group 1: Project Details - The bridge is located in the Fuxing District of Handan City and spans the busy Beijing-Guangzhou Railway, featuring a main bridge design of (68+68) meters with a single-tower prestressed concrete cable-stayed configuration [1] - The main tower stands at a height of 32 meters, with a hexagonal solid concrete cross-section that tapers from the base to the top, showcasing innovative engineering techniques [1] Group 2: Construction Techniques - The construction team employed an "one-time molding" technique and utilized tower cranes for material handling, which allowed for the early relocation of equipment such as contact network supports and power lines [1] - A third-party monitoring system was implemented to ensure real-time tracking of railway bed settlement and line safety, ensuring that railway operations remain unaffected during construction [1] Group 3: Infrastructure Impact - Upon completion, the project will enhance the functionality of the North Warehouse Road, addressing the travel needs of surrounding communities and contributing to the overall improvement of urban infrastructure quality and sustainability in Handan City [2]

Core Points - The construction of the fourth bridge over the Panama Canal, undertaken by a joint venture of China Communications Construction Company and China Harbour Engineering Company, has reached a significant milestone with the commencement of concrete pouring for the first layer of the tower foundation on November 1 [1] - The project is expected to be completed by October 2028, with overall progress exceeding 27%, aligning with the anticipated timeline [1] - The fourth bridge is described as the most important engineering project in Panama, enhancing connectivity between North and South America and significantly improving the living conditions for approximately 2 million residents along the riverbanks [1] Project Details - The main bridge will feature a double-tower, double-cable-stayed structure, measuring 965 meters in length, with the towers standing 186 meters high in an "H" shape [1] - This project represents the largest single bridge project undertaken by Chinese enterprises in Latin America and is the largest economic cooperation project between China and Panama [1] - During the construction phase, the project is expected to create 3,000 direct jobs and additional indirect employment opportunities [1]

Core Points - The construction of the fourth bridge over the Panama Canal, undertaken by a joint venture of China Communications Construction Company and China Harbour Engineering Company, has reached a significant milestone with the commencement of concrete pouring for the first layer of the tower foundation on November 1 [1] - The project is expected to be completed by October 2028, with overall progress exceeding 27%, aligning with the anticipated timeline [1] - The fourth bridge is described as the most important engineering project in Panama, enhancing connectivity between North and South America and significantly improving the quality of life for residents [1] Project Details - The main bridge structure is a double-tower, double-cable-stayed bridge, measuring 965 meters in length, with the main tower standing 186 meters tall in an "H" shape [1] - This project represents the largest single bridge project undertaken by Chinese enterprises in Latin America and is the largest economic cooperation project between China and Panama [1] - During the construction phase, the project is expected to create 3,000 direct jobs and additional indirect employment opportunities [1] Economic Impact - Upon completion, the bridge will greatly enhance travel conditions for approximately 2 million people living along the riverbanks, effectively promoting local economic development [1]