Steel beam coupling device

摘要

The present invention relates to a coupling device for connecting members. The coupling device comprises a coupling case that has connecting slots, in which the members to be connected are placed, and wedges that are inserted into the space between the coupling case and the members. The coupling device of the present invention can connect members using the wedging action under external forces. The wedges are made to have a higher friction coefficient on the surface that touches the members than on the surface that touches the coupling case. The coupling device of the present invention can solve the problems of bolt connection such as a notch and stress concentration around the holes. Besides, the coupling device of the present invention reduces the construction time and the labor costs greatly compared with widely used bearing-type and friction-type bolt connections.