Sleeve Lib Joint usable with precast concrete, Manufacturing method for precast concrete having the same, and Installing method for precast concreat structure having the same

摘要

The present invention relates to a sleeve joint for a precast concrete ribs , and both ends are formed in a hollow bangdoen , the fixed female screw is formed in the hollow of the inner sleeve ; As being screwed to the fixed sleeve , and a male screw formed on one end fastened to the female screw formed on the outer surface of the fixing sleeve and the sleeve comprising a locking groove which movement is provided for connection to the reinforced concrete precast insertion ; includes , may adjust the length of the coupling sleeve moves relative to the fixed sleeve in accordance with the specifications of the reinforcement for the connection of pre-cast concrete . ;