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]