Asia's first high-pier extradosed cable-stayed bridge has completed its cables installation

On April 17th, Mozhai Wulong River Bridge, a key project of the Chongqing-Xiangxi Expressway, which is constructed by CRCC HARBOUR & CHANNEL ENGINEERING BUREAU GROUP and participated by OVM was successful accomplishment of stay-cable installation, laying a solid foundation for the full opening of the expressway.
The bridge is located in Pengshui Miao and Tujia Autonomous County in Chongqing and spans the Wulong River with a total length of 708 meters and a main span of 296 meters. it's a bi-directional four-lanes extradosed cable-stayed bridge, no.3 piers reaching heights of 216 meters and ranking among the top of similar bridges in Asia.
The main bridge section is located on a curved section, making it a curved lextradosed cable-stayed bridge. Additionally, the main piers are tall, and the side piers are situated in steep terrain, with the construction site being narrow and influenced by multiple factors such as roads and waterways. This results in high construction difficulty and significant safety risks.

With more than 50 years of technical accumulation and research innovation in the field of prestressing products, the 6th generation of OVM extradosed cable-stayed system has deepened designed and developed for the Asia's highest-pier extradosed cable-stayed bridge. The cable system can effectively cope with extreme weather conditions and complex loading environment to ensure the safe and stable operation of the bridge in the whole life cycle.
During the production process, OVM carries out strict control on raw material procurement, production process and quality inspection, etc. To ensure that each delivered stay-cable comply with the high quality requirements after deepening design. The advanced intelligent production line and information management system are used to realize the accuracy and efficiency of stay cable manufacturing, shorten the production cycle. To ensure the progress of project construction.
OVM adopts self-developed advanced strands cable installation equipment and technology in this project, to accurately control on cable tensionning, anchoring and positioning of each stay cable, ensuring the safety and stability of the stay cable system and the bridge structure.
With rich experience in the field of prestressing and rigorous construction management, OVM has successfully completed this challenging task, demonstrating OVM 's persistent pursuit of engineering quality and unremitting exploration of technological innovation.