Overhead elevator for elevation of bridges

摘要

The present invention relates to a jack bearing device for lifting an upper structure of a bridge constructed to support a pulling book as a simple and simplified structure at the time of repairing a bridge in which the upper half of the bridge pier is partitioned as a chest wall, The structural features include a base plate 10 formed at right angles to be placed on one side of the upper widthwise direction of the bridge pier 1 and having horizontal connection plates 11 extending at a predetermined length and width at both horizontal ends, A support metal member 20 having a support plate body 21 disposed and fixed at an outer corner of the base plate 10 and projecting horizontally outside the base plate 10, And a pair of vertical fixing plates 30 which are arranged so as to be brought into contact with the plates 11 and which are vertically installed on the chest wall 1a in the middle of the upper part of the bridge pier 1 and are installed in parallel, Jack is a supporting device for a raise.