en.Wedoany.com Reported - Recently, significant progress has been made on the G320 National Highway (Hangzhou Bolu to Renhe Section, Yuhang Section) project in Yuhang District, Hangzhou City, Zhejiang Province, China. The first span of the steel structure for Zhangshangang Bridge was successfully hoisted. This bridge serves as a key control node project for the entire line.

The G320 National Highway (Hangzhou Bolu to Renhe Section, Yuhang Section) is a key regional transportation renovation and expansion project, with a total line length of approximately 12.8 kilometers. China Communications Construction Company Road and Bridge Construction Co., Ltd. is responsible for the TJ01 bid section, which has a route length of 4.204 kilometers. Both the elevated and ground-level roads are first-class highways with two-way six lanes. The design speed for the elevated bridge is 80 km/h, and for the ground-level road, it is 60 km/h. The hoisting segment this time is the third unit of the ground-level Zhangshangang Bridge, adopting a left-right separate design. The design span arrangement for both the left and right sections is a three-span continuous variable-height steel box girder bridge of (70+120+70) meters, with the steel box girder adopting a double-box chamber cross-section. Before hoisting, the project department organized technical and safety briefings, clarifying the assembly, alignment, welding standards for steel components, as well as hoisting command, equipment inspection, and on-site safety requirements. After on-site verification that the equipment and lifting tools were ready, the crane smoothly lifted the components. Management and technical personnel monitored the entire process, various teams coordinated operations, and the steel structure components were precisely positioned, successfully completing the hoisting task.

The installation of the first span of the steel structure for Zhangshangang Bridge marks the full commencement of the superstructure construction, laying a solid foundation for subsequent bridge deck system construction and the full bridge connection. Upon completion, the project will effectively enhance the traffic capacity and service level of the national highway network, promote regional economic interconnection, and facilitate the development of tourism resources along the route.

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