Analysis Of Prestressed Subassemblage Concrete Frame On Load-Bearing Capacity

Prestressed Subassemblage concrete frame is assembled by precast prestressed beams and columns with tendons in the joints of the frames. These beams and columns are hoisted in site and the tendons are passed through the moire pipes. So prestressing force is brought to the joints of the frame. These tendons also can assume the moments at the end of the beams in ordinary condition. By way of these tendons, precast beams and columns can be assembled conveniently, and the joints and frame are monolithic and continuous. Consequently, compared with common reinforced concrete frames, this kind of frame systems possess higher reliability and solved the problems in the process of assembling Prestressed Concrete frames. Also it forms the framework of Prestressed Subassemblage concrete frame, and explores a new way for industrial production of prestressed structures.Two specimens of prestressed fabricated frames subassembly were tested under reversed cyclic load. Experimental studies were carried out to investigate the frame's load-bearing capacity. Based on plastic analysis and non-linear finite element analysis, the structure's load-bearing capacity under secondary internal forces is calculated and certified.