CONCRETE-FILLED STEEL BOX GIRDER WITH DUAL ARCH WEB PLATE AND CONSTRUCTION METHOD THEREOF

摘要

The present invention provides a concrete-filled steel box girder with a dual arch web plate and a construction method thereof which install a dual arch web plate in a web plate to fill and combine concrete to improve structural performance by an increase in buckling resistance and improve economic efficiency and constructability. According to the present invention, the concrete-filled steel box girder with a dual arch web plate comprises: a hollow steel box including a lower flange, an upper flange corresponding to the lower flange to be separated and installed in an upward direction, and a web plate constituting an outer wall between the upper flange and the lower flange; an arc web which constitutes an inner wall between the upper flange and the lower flange, and is curved towards the web plate; a filling hole drilled on the upper flange to fill concrete in a wall space divided by the arch web and the web plate; a tensile steel reinforcement arranged in the wall space in a longitudinal direction; studs installed on opposite surfaces of the arch web and the web plate at regular intervals; and filling concrete filled in the wall space to be integrally combined.;COPYRIGHT KIPO 2018