| 摘要 |
PROBLEM TO BE SOLVED: To provide a PC steel anchoring method for safely and economically anchoring PC steels on a floor slab without forming anchorage projections on the upper surface of the floor slab, and to provide a prestressed concrete bridge. SOLUTION: When a lower floor slab 5 is formed, depressions 25 are formed on the upper surface 15 of the lower floor slab, thickened portions 19 are formed on the lower surface 17 of the same, and sheaths 27 are formed therein. Each sheath 27 is a hole penetrating from the side surface 20 of one of the depressions 25 to the side surface 20 of the other depression 25. Then the PC steel 13 is inserted from the side of the upper surface 15 of the lower floor slab 5 into the sheath 27 to be strained. Then by using an anchorage device 21 arranged near a boundary between the depression 25 and the sheath 27, the PC steel 13 is anchored to the lower floor slab 5. Further fillers 29 are set in the depressions 25, and the surface of the lower floor slab 5 is smoothed, to thereby complete the construction of an anchorage portion 23. COPYRIGHT: (C)2005,JPO&NCIPI |
