| 摘要 |
A buried type expanding joint device and an installation method of the same are provided to be installed in the narrow place formed along the width direction of a bridge as a process of smashing a part of a slab is omitted. A buried type expanding joint device comprises: a pair of fixed frame whose both sides of the longitudinal direction is rail type and having an opening hole(110) along the longitudinal direction; several screwnuts(200) inserted into a screwnut rail(120) of a rigid frame, moving in the inside of the screw nut rail; a plurality of anchoring bolts(300) fixed to a buried steel reinforcement(620) of a slab(610) while being screwed with a screw nut; and a holder(410) having an expansion member(400) of 'U' shape along both ends of the width direction. The expansion member is installed in an interval(611) of the slab while inserting the holder in the fixed frame inside. |
