MANUFACTURING METHOD OF BOX TYPE STEEL-CONCRETE COMPOSITE GIRDER AND CONSTRUCTION METHOD OF THEREOF

摘要

PURPOSE: A manufacturing method of a box-type steel composite girder and a construction method of a box-type bridge using the same are provided to improve cost-efficiency by maximizing the use of steel materials. CONSTITUTION: A manufacturing method of a box-type steel composite girder is as follows. A steel box type split steel girder(110) composed of upper and lower flanges and a pair of webs is manufactured, and the center portion thereof is open. A form for placing a sectional deck(140) is installed. Reinforcing bars for reinforcing the strength of concrete placed between a bottom form and a side form are arranged. The sectional deck is integrated in the split steel girder by placing high-strength concrete with high compressive strength in the form, and the open top of the split steel girder is closed. The forms are removed.