Abstract:Combined with the research results of the project "OVMLZM Arch Bridge boom System", this paper focuses on the disease of arch bridge boom and similar cable, analyzes the causes of cable disease, and studies the measures and countermeasures to improve the safety, reliability and durability of bridge structure.

Abstract:This paper is the main result of the author's research and test on the ring prestressed concrete structure. After a number of engineering design tests, it has been introduced in relevant journals and journals. Now the comprehensive summary is published for similar engineering design calculation reference.

Abstract:Badong Yangtze River Highway Bridge is a super large bridge project of National Highway 209 across the Yangtze River in western Hubei Province. Its main bridge is a PC cable-stayed bridge with double cable plane and full floating system with the main span of 388 meters. This paper introduces the main structural design of the main girder of cable-stayed bridge and the stress analysis of the cable-stayed cable. Construction of the bridge began in March 2001 and is scheduled to be completed in June 2004.

Abstract:The advantages and several structural forms of post-tensioned prestressed concrete pool are introduced.

Abstract:At present, although external prestressed Bridges have been more common in some developed countries, the domestic application is still in its infancy. There are still many technical problems in external prestressed Bridges that need further study. In this paper, the failure mechanism of external prestressed Bridges is analyzed, and the basic design suggestions of external prestressed Bridges are put forward.

Abstract:Firstly, the paper analyzes the effect of space effect and time effect of surrounding rock on improving the stress state of surrounding rock during supporting.

Abstract:Badong Yangtze River Highway Bridge is a double-tower and double-cable-plane prestressed concrete cable-stayed bridge. The tower is a super-high structure with a D-shaped cross-section. This paper introduces the structure design of the tower body and pier, the basic calculation content of the tower and the anchorage area technology of the tower.

Abstract:From a small fishing port, Hong Kong has developed into a world metropolis in more than 100 years. The development process is closely related to the construction of infrastructure, and the role of road and bridge projects is particularly obvious and important. This paper introduces some important world-class bridge projects in Hong Kong and their prospects. The key technologies, innovation points, quality management, economic and social benefits are emphatically introduced.