Abstract:Guijiang Third Bridge is a three-span center-bearing steel-tube concrete arch bridge. This paper focuses on the process flow and construction technology of vertical turning construction of steel pipe arch rib of this bridge.

Abstract:This paper introduces the application of hydraulic lifting device in the arch rib lifting vertical turning project of Guijiang River Third Bridge and its technology off construction.

Abstract:In this paper, through the construction example of inverted installation method, the characteristics and superiority of hydraulic lifting technology in inverted installation method of component installation project.

Abstract:This paper introduces a new lifting and installation method for steel box girders of large-span urban overpasses, and briefly describes its process and key construction technologies.

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Abstract:Precast spandrel bridges with extracorporeal prestressing have become common in contemporary construction trends due to their advantages in terms of reduced girder web thickness and maintenance feasibility. Continuous girders can reduce the number of expansion joints and improve traffic conditions, but the intrinsic structural properties of these girders are difficult to analyze (especially in the limit state). In this study, the expansion and contraction characteristics of two types of continuous girders with in-vitro and composite stresses under asymmetric loading are examined and compared experimentally.

Abstract:This paper takes Guangzhou Baiyun Airport hangar roof frame project as an example, introduces the organic combination of pre-stressing technology in steel structure installation forming role and bearing role, and explains the conversion process of the two roles.

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