COMPOSITE GIRDER FOR COMBINING ULTRA-HIGH PERFORMANCE CONCRETE (UHPC) PRECAST MODULE INTO STEEL MEMBER, AND MANUFACTURING METHOD FOR THE SAME

摘要

The present invention provides a composite girder in which an ultrahigh performance concrete precast module and a steel member are combined and a manufacturing method thereof. The composite girder can reduce a construction period by combining the ultrahigh performance concrete precast module with a steel girder including a lower flange and a web without an upper flange by using ultrahigh performance concrete (UHPC). The composite girder can lower the height of the web of the steel girder by using the ultrahigh performance concrete precast module. The composite girder also can reduce the thickness of a UHPC floor board in temporary construction of a bridge by using the web of the steel girder as a shear connection member by exposing the web of the steel girder to be higher than the upper surface of the ultrahigh performance concrete precast module. The composite girder includes the steel girder (110), a UHPC precast module (120), a connection member (130), and non shrink mortar (140).