A CONSTRUCTION METHOD AND STRUCTURE FOR TOWER CRANE CROSS BEAM

摘要

A construction method and structure for a tower crane cross beam are provided to remarkably increase a resistance strength and a support effect against a horizontal force (horizontal load) of a cross beam. A construction structure for a tower crane cross beam includes a burying unit, a bracket, a cross beam, and a turn buckle(25). The burying unit has projection rods projecting from both surfaces of a flat body. The bracket is fastened to the projection rod formed at one side of the burying unit, and has a support plate(15b) projecting outward from a lower end of the body. The cross beam includes a horizontal bean(17), and vertical beams(18B). The horizontal bean is mounted on the bracket. The vertical beams are connected to the bracket installed at a core wall. The turn buckle connects fixed pins(24) mounted on the side surface of the cross beam and the core wall to distribute a horizontal load of the tower crane to the core wall.