Abstract:The Second Tomei Tenryugawa Bridge is a 1585.8 m long prestressed concrete continuous box girder bridge, the longest of its kind in Japan. This paper presents the design summary of its external tendons and the results of a full-scale model test.

Abstract:This paper introduces the design and construction of the Waitaki Harbour Bridge from the aspects of cable safety factor, fatigue design and finite element analysis design of the pylon.

Abstract:The structural form in which the prestressing tendons are placed outside the beam cross-section is called externally prestressed concrete (EPC). It has developed rapidly at home and abroad in recent years and is now widely used in building and bridge design and strengthening. This paper introduces the development status, structural characteristics, main theories and design methods of EPC, with a view to promoting its wider application.

Abstract:This paper introduces the content, usage, applicable conditions and applications of several commonly used prestress strengthening methods.

Abstract:This paper introduces the advantages, design calculation and construction method of the high-efficiency prestress strengthening method for reinforced concrete beams, as well as its successful application in engineering projects.

Abstract:This paper introduces the application of externally prestressed structure technology in several projects. The results show that the technology has remarkable advantages in the maintenance, strengthening and design of building and bridge structures.

Abstract:Based on a strengthening project, this paper discusses the application of external prestressing technology in the strengthening of concrete waffle beam-slab structures, and proposes a practical and feasible prestress strengthening scheme and corresponding design calculation method. The successful practice provides useful technical reference for similar projects and promotes the development of external prestressing technology.

Abstract:Due to long-term disrepair and the development of transportation, many bridges have begun to lose their original load-bearing capacity and become dangerous bridges under the influence of increased traffic density and tonnage. This paper describes the method of using external prestressing technology to strengthen dangerous bridges so as to restore or exceed their original traffic function.

Abstract:This paper mainly introduces the characteristics and configuration of the HVM external tendon anchorage used for the external tendons of the new Jiefang Bridge in Guilin, as well as the construction technology and technical requirements of the external tendons.

Abstract:This report is an overview of the application of external prestressing tendons and describes the material issues related to external prestressing and the methods to solve them, including the definitions of prestressing tendons, external tendons and prestressing steel, as well as the requirements for corrosion protection, embedded ducts and deviators.