COMPOSITE BEAM USING BOX GIRDER AND I GIRDER AND CONSTRUCTION METHOD THEREOF

摘要

The present invention relates to a composite beam using a box girder and an I-girder and a construction method thereof, wherein the composite beam comprises: support members in a box girder shape and separately arranged on supports of a bridge; and preflex composite members provided with I-girders and coupled and arranged between the support members. The present invention can provide a girder with a low depth and a span equal to or higher than 50 m by coupling the support members in a box girder shape to the preflex composite members.