| 摘要 |
PROBLEM TO BE SOLVED: To provide a prestressed concrete structure capable of effectively preventing peeling off of grout.SOLUTION: In a prestressed concrete structure 10 of a post-tensioning system using a PC steel 16, a concave portion 11 formed with a thread groove 12 in an inner peripheral surface 11a is formed. After disposing a fixing part 15 on the PC steel 16 in the concave portion 11, the concave portion 11 is filled with grout 19. With this, an irregularity in the thread groove 12 increases resistance of the grout 19 in a pull-out direction.SELECTED DRAWING: Figure 1 |
