Research on Reasonable Connections Between Webs and Bottom Plates in Pre-pressed Concrete Composite Box Girder With Corrugated Steel Webs

Abstract

There are various connections between steel webs and concrete bottom plates in prepressed concrete composite box girders with corrugated steel webs, each having specific construction applicability and causing different stress states. Comparative analysis on three kinds of connections was conducted to obtain a suitable connection for the girder during the incremental launching construction stage. When steel girder’s lower flange was simply connected to a concrete bottom plate in a composite girder, certain local stress might exceed design limitations. Although a simple connection is easy for construction, local connections and complex U-shape configurations are necessary for meeting structure’s stress state requirements.