Abstract:Haiyantang Bridge is the first self-anchored suspension bridge in China with circular steel stranding wires for its main cable and derrick. The design and structure of its main cable and derrick are different from those of ordinary suspension Bridges. This paper introduces the effective measures to determine the cable force of the main cable and derrick and the vacuum grouting technology of the main cable part of the tower cap.

Abstract:Thirty-two trusses of precast box girder and 16 trusses of track plate were produced on both sides of Hedong River and west River.

Abstract:This paper introduces the composition of the moving mold frame bridge making machine (undercarriage type), which mainly consists of the mold frame support system, main beam truss system, model system and hydraulic system. And the construction technology of mold frame construction, inner mold construction, mold frame stripping and mold frame moving to the next hole, and corresponding measures are put forward according to the construction difficulties. The front fulcrum of the moving mold frame bridge-building machine is generally located on the bull leg or temporary support pier, and the back fulcrum has different forms according to different construction conditions.

Abstract:With the popularity of anchor cable in geotechnical engineering reinforcement, the permanent problem of anchor cable is the focus of recent attention. The permanence of the anchor cable is related to the structure of the anchor cable and the material of the anchor cable, as well as the environment and human factors. This paper attempts to put forward the reasonable structure of permanent anchor cable for reference of the cable damage factors and protection.

Abstract:A large number of prestressed rock anchor cables are used in the Three Gorges Project. The selection, function, problems and countermeasures of the Three Gorges anchor cables are introduced in detail. The author's views and suggestions on the construction tools and new anti-corrosion structures of rock anchors are also put forward.

Abstract:In this paper, based on the prestressed construction of the beam of Haiyantang Bridge in Zhejiang Province, the importance of quantifying the internal force of the internal prestressed concrete member in the construction stage is proposed to avoid the failure of the member or structure due to insufficient quantification of internal force in the construction stage.

Abstract:This paper introduces the experimental results of the wave-tooth fixture anchor and its application in the reinforcement technology of carbon fiber sheet, and puts forward the method of applying prestress on carbon fiber sheet.

Abstract:The Bridge occupies a prominent position in the harbour of Hong Kong and will become a major symbol of Hong Kong upon completion. The main span of the bridge is 1018m, and such a large span of cable-stayed bridge will be a world record and a major breakthrough in cable-stayed bridge technology. Designing and building Stonecutters Island Bridge will be a great challenge. For this difficult and complex task, the introduction of international competition is a wise decision. If this project is designed by local tender as usual,