JOINT OF COMPOSITE TUBE CONFINED CONCRETE RODS

摘要

FIELD: construction.;SUBSTANCE: joint of composite tube confined concrete rods is formed by tubes, which are filled by concrete. Concrete is laid into a tube under a force higher than operational load. Concrete is limited at one end of the tube moving under action of the force with a plug with a stop. At the other end of the tube the concrete volume is fixed with the plug, some of which is placed in the pipe end. The external part of the plug is placed into the open end of the tube confined concrete rod, to which the structure is joined. With a certain volume of concrete, a guaranteed gap is provided between ends of joined tubes. The joint is covered with a coupling, the position of which is fixed with a support ring.;EFFECT: elimination of welded joints making during assembly, reduced effect of subsidence phenomena in concrete at structure operation and elimination of longitudinal shift of concrete under load.;1 dwg