| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rational structure and method for joining precast beams together in the axial direction. <P>SOLUTION: When joining the precast beams 3 together in the axial direction, recessed grooves 5 are previously formed in the ends of both precast beams where a joint steel frame 4 can be disposed, and the front ends of portions of a beam main reinforcement 6 (an upper end reinforcement 6a and a lower end reinforcement 6b) are previously fixed to positions near the recessed grooves. The front end faces of both precast beams are disposed to abut each other so that the joint steel frame is dropped down into both recessed grooves to bridge between both precast beams, and a shear reinforcement 8 is then arranged around the joint steel frame and concrete is placed and filled into the recessed grooves to integrally join both precast beams together via the joint steel frame and the concrete. Otherwise, the joint steel frame is previously embedded in one precast beam and the recessed groove is previously formed in the other precast beam where the joint steel frame is dropped down. <P>COPYRIGHT: (C)2012,JPO&INPIT |
