THE FABRICATED EXPANSION JOINT AND INSTALLATION METHOD WITHOUT CONCRETE-BREAKING

摘要

This design omits the existing concrete dismantling and pouring curing process, which occupies more than 70% of the whole process of bridge expansion equipment replacement work, thereby improving work efficiency and minimizing traffic control. The present invention relates to a concrete non-disassembled assembled expansion joint device that can be replaced with a new expansion joint having excellent cost savings or durability.;The breakage of expansion joints on bridges is more serious than the loss itself, and the traffic control due to maintenance is a considerable burden in the current road situation that cannot accommodate the increasing traffic volume. .;The present invention is designed to remove the damaged or worn expansion joint member without dismantling the anchor bolt installed in the bridge, or to replace the expansion joint member after boring after reinforcement with chemical anchors. It can improve durability and more perfect waterproofing, and can improve the performance of bridge. In addition, it is possible to prevent the damage of the upper structure due to the concrete breakdown, and in particular, it can significantly reduce the replacement time can minimize the economic loss due to traffic control.