ARCH-SHAPED STRUCTURE AND A CONSTRUCTION METHOD THEREOF USING AN AIR SCREEN, CAPABLE OF REDUCING CONSTRUCTION TIME AND COSTS

摘要

PURPOSE: An arch-shaped structure and a construction method thereof using an air screen are provided to provide a secure arch-shaped structure by forming an insulation layer, a shotcrete layer, a ready-mixed concrete layer, and a finishing layer.;CONSTITUTION: A construction method of an arch-shaped structure using an air screen is as follows. The edge of an air screen(20) is fixed using inner anchor grooves formed in a concrete footing. The air screen is expanded by filling the air screen with air. A first urethane layer is formed on the inner surface of the inner screen, and reinforcing hangers(40) are formed in the first urethane layer. A second urethane layer is formed on the first urethane layer, and horizontal reinforcing bars are installed in the reinforcing hangers. Longitudinal reinforcing bars are arranged in the concrete footing to be crossed with the horizontal reinforcing bars. Shotcrete layers(52,54) are repetitively formed to cover the reinforcing bars.;COPYRIGHT KIPO 2010