This is designed to connect the buoyancy tubes and the like, such as scaffolding and railings naepaseong cage facility and ships berthing facilities relates to a bracket which is connected to provide the awards structure, more particularly to improve the structure of the tube assembly of the buoyancy ring for a tube with a large diameter outer ring and the inner tube small-diameter tube support means sikimeuroseo, the award structure facilities Meanwhile, remove the inner small-diameter tube support means, if necessary, and to allow the case to be replaced by buoyant than larger diameter tube, which optimizes the placement of the inner small-diameter tube support means performed easily and quickly than the removal operation also and to make, because of this the most significant dimensions of the base structure by which the buoyancy tube of water than in the ever actively cope with such a design change if the change according to the situation, to perform the work of water facilities structure with more efficient relates to the connection bracket for the replacement of the prize structure so that the buoyancy tubes are available. To this end, the present invention is to a support frame formed in a rectangular frame shape year by year in the support 11, the buoyancy tube formed in the lower side of the support frame, year 11 (15) for inserting the tube ring (12) and , made hayeoseo include assembly end (13) for projecting footing forming a top side of the support purchased frame 11, the tube ring 12 is supported on the lower side of the supporting live live frame 11, the frame (11 in the connection bracket (10) for a plurality dog Water structures formed along the length of), the plurality of tube ring 12. All or part of the tube ring 12 is integrally connected to the support frame, year 11, characterized in that said large diameter tube ring (12a) and connected to a small-diameter tubes that are installed on the arc arch (12b) by the large-diameter tube ring (12a) and
