COUPLING STRUCTURE OF PREFABRICATED STEEL RIBS FOR TUNNEL CONSTRUCTION CAPABLE OF EASILY ADJUSTING THE POSITION OF A SUPPORT

摘要

PURPOSE: A coupling structure of prefabricated steel ribs for tunnel construction is provided to improve workability, durability, and coupling force by applying tension to a clamp band.;CONSTITUTION: A coupling structure of prefabricated steel ribs for tunnel construction comprises supports(20), clamp bands(30), and fasteners(40). The supports are vertically positioned at both sides of a middle bottom part(22). Fixing units(24,26) are formed in the outer corners of the supports. Upper and lower steel bars(12,12a) are inserted into the fixing units. The clamp bands are hung on the bottom part and surround the outer surface of the upper and lower steel bars. The fasteners apply tension to the clamp band.;COPYRIGHT KIPO 2012