Width-direction connecting apparatus of bridge beam capable of reducing magnitude of negative moment in supporting point of bridge and method for constructing the apparatus

摘要

The present invention reduces the size of which may affect the safety of the bridge, such as cracks occurring in the bridge deck by a unit moment generated on the fulcrum portion in bridge negative moment to extend the safety and durability light of the bridge as may the width of the installation method of the connection device in direction,; , Install the sheath pipe or more of a plurality of between the bridge beam subsequently installed on the pier or abutment in the transverse direction of the bridge beam, and installed on the upper flange and the upper end of the abdomen of the bridge beam, the anchors on both sides of the coping portion pier or abutment the installation and introducing after connecting the PC steel wires to the anchor on the opposite side and connected to the PC steel wire to the anchor through the PC steel wires inside the sheath fixed after placing the curing concrete to the upper slab, tensile force on the PC steel wire and the anchor PC secure the wire fixing. At this time is added to the bending caused by the sharp angle a portion for entering the sheath tube formed from the anchor when the PC steel introducing a tensile force because the effects of loss of tensile force by inserting the direction switching pipe of a predetermined length in the fold back portions PC when steel wire is passed through the fold back portion, introduce tensile force makes it possible to smoothly change direction, and tensile force introduction.