Seismic reinforcement shear key with fine adjustment to prevent damage of superstructure

摘要

The present invention relates to a shear key which enhances coupling of a bridge with an upper beam of the bridge. The present invention relates to a seismic strengthening shear key installation method which can compensate for insufficient horizontal force of a bridge support in bridges in an event of an earthquake, can be fine-tuned when installing the shear key which prevents the upper beam from falling, and combines with the shear keys without puncturing the upper beam to prevent durability degradation of a structure of the upper beam.