UPPER STRUCTURE RAISING METHOD USING BRIDGE UPPER STRUCTURE SUPPORT AND LIFT EQUIPMENT AND THIS

摘要

The present invention provides a bridge superstructure support lifting device capable of vertically extending a bridge pillar portion of a bridge to raise and raise a bridge by cutting and restoring a bridge column when the bridge upper structure is elevated to further secure a space under the bridge. The purpose is to provide a method for elevating the superstructure used.;Bridge superstructure support lifting device capable of vertically extending the bridge pillar portion of the bridge according to the present invention for achieving the above object is a bridge support lift that is vertically and horizontally intersected crosswise and inclined in a box shape. A lower temporary vent; A plurality of hydraulic jacks installed at regular intervals on the horizontal member of the lower support tent for lifting the pier; A pier supporting lift upper temporary vent which is horizontally and vertically intersected vertically on the upper portion of the hydraulic jack and assembled into a box shape; It characterized in that it consists of a fixed steel rod for vertically fixed connection of the horizontal member of the pier supporting lift lower temporary vent and the horizontal member of the pier supporting lift lower temporary vent.;In addition, the superstructure lifting method using the bridge superstructure support lifting device that can vertically extend the bridge pillar portion of the bridge according to the present invention for achieving the above object is the support of the bridge superstructure to the bridge consisting of pillars and coping portion Installing the device (I); Cutting the column of the piers using a diamond cutter (II); Using a hydraulic jack installed in the bridge superstructure support lifting device to raise the upper cut surface of the cut pillar and simultaneously chip the lower cut surface of the pillar; The vertical rebar is exposed on the lower cutting surface of the column, the vertical rebar is connected to the vertical reinforcement using a reinforcing bar coupling coupling, the horizontal reinforcing bars are disposed on the vertical reinforcing bars, and the formwork is formed outside the vertical reinforcing bars and the horizontal reinforcing bars. Installing, and expanding the column section by pouring and curing primary concrete (IV); After chipping the upper cutting surface of the column, the vertical rebar is exposed, and the vertical rebar is connected to the lower cutting surface of the column by using reinforcing bar coupling coupling, and the horizontal reinforcing bar is disposed on the vertical reinforcing bar. Installing formwork to the outside of the horizontal reinforcing bar, and placing and curing the secondary concrete to bond the cut surfaces of the columns (V); After the section expansion of the pillar, characterized in that the step (VI) of dismantling the bridge upper structure support lifting device installed in the pier.;Bridge, Pier Column, Extension, Superstructure, Support Lift Device, Lifting Method