IMPROVED GROUND REINFORCING BAR ASSEMBLY WITH EXPANDABLE FRONT WING

摘要

PURPOSE: A front expansion type ground reinforcing bar assembly is provided to easily control the expansion angle of an expansion piece because a steel bar can move the contact point between a support member and the expansion piece by being rotated and inserted to a front anchorage. CONSTITUTION: A front expansion type ground reinforcing bar assembly comprises a front anchorage(100), a steel bar(300), an annular support member(400), and a fixing blade(500). The front anchorage comprises a cylindrical main body with female threads and an expansion piece(120) which is formed in the shape of a pipe cut at an angle and has one end attached to the backside of the main body. The steel bar passes through the expansion piece and is coupled to the main body via male threads on the leading end thereof. The annular support member is installed on the periphery of the steel bar and contacts the inner surface of the expansion piece to support the expansion piece in a radial direction. The fixing blade is installed by being inserted in a fixing blade insertion groove formed on the leading end of the front anchorage.