Abstract
In PC box girder bridge used corrugated steel girder at web, corrugated steel girder is fabricated in site as a rule. In this case, it is considered the welded joint, the bolt joint as the joint technique of corrugated steel girder. In this study, supposing unwelded joint under consideration of quality control in site and workability and considering scenery of structure, strength evaluation and drop off the number of bolts in the joint portion was investigated. As a result, it was cleared that the bolt joint has more strength evaluation than backling strength of corrugated steel girder and it can be dropped off the half number of bolts.
