Abstract:Shanghai Lupu Bridge is an all-steel arch bridge with a main span of 550 meters. The steel arch rib above the bridge floor is cantilevered and the cable is load-bearing. According to the installation characteristics of the bridge, this paper introduces the axis adjustment scheme before the steel arch rib is closed and the technology of the single cable of the parallel cable of the steel strand.

Abstract:Taking the construction of tie rod of Nguyen Van Ling Avenue Arch Bridge in Ho Chi Minh City as an example, this paper introduces the concrete construction method of interchangeable tie rod and various points for attention in the project.

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Abstract:The construction method, equipment and related technology of Shijingshan concrete cable-stayed bridge in Beijing Fifth Ring Road are briefly introduced.

Abstract:The 2×300MW unit of Hubei Puqi Power Plant has a drum diameter of 2.033m, a length of 22.500m and a weight of 167t. During the lifting process, the drum needs to tilt more than 32° before it can pass through the beams of each layer smoothly. This paper discusses the feasibility of hydraulic lifting technology in inclined lifting of drum by analyzing the stress state of drum during lifting, which has universal significance for drum lifting.

Abstract:This paper mainly introduces the construction technology of vertical and vertical prestressing of the box girder of Xiamen Huandao Road (Navy Dock to Yanwu section), and takes a series of measures to strengthen the control of each construction link in each stage of concrete construction, and obtains good results.

Abstract:Structural analysis of prestressed anchor cable and thinking of force

Abstract:In view of the influence of the lateral stiffness of columns and beams on the establishment of prestress in practical engineering, this paper uses the classical mechanics method and finite element software modeling and analysis, puts forward the practical solution, and puts forward the general calculation formula based on classical structural mechanics.

Abstract:This paper analyzes the root causes of broken cables of middle and bottom arch Bridges and cable-stayed Bridges, designs four kinds of rotating cable anchors for bending fatigue fracture of cable, and introduces the structure and installation of rotating cable anchors in detail.