| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for a joint of a precast floor slab in a bridge which is used for connecting and fixing each precast floor slab disposed and fixed in the direction perpendicular to a girder installed in the bridge. SOLUTION: Rectangular groove parts 13 are formed in a PC floor slab 12 starting at the left end 12a and/or the right end 12b thereof when viewed from above. The groove parts 13 is constituted of respective lateral groove parts 13A and vertical groove parts 13B, and are arranged at predetermined intervals in the direction of the predetermined length L of the PC floor slab 12. The both ends 15a, 15b of a generally U-shaped joint 15 inserted into the groove part 13 has screw parts 15c, respectively, and are fixed to a lower steel plate 16 disposed on the lower surface of the PC floor slab 12 with fixing nuts 18. The horizontal part 15A of the generally U-shaped joint 15 is inserted without coming into contact with the bottom surface of the lateral groove part 13A formed in the PC floor slab 12, namely, the upper surface 12e of the lateral groove portion of the PC floor slab 12. A space length D3 is formed below the horizontal part 15A of the generally U-shaped joint 15, and the space D3 is also filled with a filler 20. COPYRIGHT: (C)2011,JPO&INPIT |
