Construction Analysis And Practice Of Post-tension Cohesive Prestress Of Concrete Frame Beam

Prestressed concrete technology is a high science technology in the field of civiv engineering.Its investment of the technology research is huge, and its technical requirements is very highly. In the current framework of reinforced concrete structure, the use of functions to meet the requirements of the framework of a prestressed concrete structure has generally been used a lot, especially post-bonding have been a lot of prestressed concrete framework for the use.Prestressed concrete framework beam span large, the big size,weighty loading, and involving the construction process more complex and frequently, the process of construction is more difficult. In the paper ,Firstly,post-bonding with prestressed concrete beam framework of the structure, the construction process, construction technology was fully expounded the theory, Then post-bonding with prestressed concrete frame construction as the breakthrough point, From a post-bonding prestressed concrete beam framework of the construction equipment, materials selection, Anchorage, prestressed steel procurement and storage, and other aspects, summed up the system of post-bonding with prestressed concrete beam framework for the construction of key Technology.Through engineering practice, for problems encountered in the construction, summed up the way to solve. From the beam section width adapt to adaptation operation of the space, the way to solve the vertical distance between the reinforced force can not meet the space requirements for the installation pad, tension caused concrete cracking stage solution, construction of Prestressed concrete the relevant parameters, such as incomplete solution in a useful exploration in both theory and practice do.Based on the framework of prestressed concrete beam construction of the key issues of analysis and treatment, summed up some prestressed concrete construction experience in theory and practice, analysis the main problems of the current technology of prestressed, the future trend of development,then put forward suggestions for improvement. to provide reference and help for the designer and construction staff.