PURPOSE: A construction method for a composite truss girder using steel truss members is provided to construct in a lump by putting on a long span in a state where main girder of the composite truss girder is not divided to multiple girders and facilitate to cope with, even though the shape of concrete lower chord members is changed. CONSTITUTION: A construction method for a composite truss girder using steel truss members is as follows. Horizontal members are welded between vertical connecting plates arranged in lower panel points of the composite truss girder to form truss steel members. Truss steel members are settled on abutments or piers by using a crane. Movable work trucks having a function as a mold are attached in upper chord members of the truss steel members. The concrete lower chord members of the composite truss girder are successively constructed.
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