Abstract:This paper briefly introduces the general situation of Xiamen Haicang Bridge and the scheme of bridge type, with emphasis on the design key points and characteristics of its prestressed anchorage system.

Abstract:The main bridge of Lijiatuo Bridge of Chongqing Yangtze River is a double-tower and double-cable-plane prestressed concrete cable-stayed bridge with a main span of 444m. The main beam is a double main beam section, and the construction is constructed by the cable-stayed combination of hanging orchis and symmetrical cantilever.

Abstract:This paper introduces the design of prestressed concrete beams reinforced by external prestressing technology for Shahe large Bridge of Jingshan Line and the test results before and after reinforcement.

Abstract:Xiaolangdi sand drainage tunnel undertakes the tasks of sand drainage and partial flood discharge of the reservoir, with an applied water head of 122m. In order to prevent the lining cracking under the action of high pressure water head, the original design adopts the bonded prestressed concrete lining scheme. After field test research and calculation analysis, it is decided to change to the unbonded prestressed structural lining scheme. The design and research of the new scheme includes the structural layout of unbonded prestressed concrete lining, the stress characteristic analysis of prestressed concrete structure, the parameter demonstration and selection of prestressed components and equipment.

Abstract:The high slope of the permanent lock is an important building of the Three Gorges project, and it is also an important part of the lock structure. Determining reasonable design principle, selecting suitable safety standard, drawing up reasonable excavation form and proper reinforcement support, formulating reasonable excavation and reinforcement construction procedure, ensuring the stability and deformation of the slope to meet the structural and operational requirements are the main problems in the design of high slope of lock. This paper systematically introduces the basic design idea of high slope of ship lock and the basic design scheme of excavation and reinforcement support based on a lot of test and analysis results of high slope design.

Abstract:This paper introduces the research and design of terminal steel structure in the first phase of Shanghai Pudong International Airport, including its characteristics and analysis, especially the design of earthquake resistance and wind resistance. The results of the wind tunnel experiment of the model are briefly described.

Abstract:In this paper, the design of super long concrete structure, the finite element analysis of temperature stress and the construction measures are discussed, and the long-term test results are introduced.

Abstract:Yiling Yangtze River Bridge in Yichang City adopts three-tower cable-stayed bridge, the overall arrangement is (128.08+348+348+120.35)m. The rationality and structural characteristics of the bridge are introduced.