Bridges

Cover of Bluescope Composite Steel Road Bridges Updating a Design Guide
Bluescope Composite Steel Road Bridges Updating a Design Guide
  • Publication no: ABC2025-018-25
  • Published: 27 June 2025

Steel is used extensively for bridges around the world in various structural arrangements or systems. One of the increasingly popular systems for bridge superstructures is the combination of steel girders (multi-girders, ladder deck, through girders or box girders) and concrete deck slabs acting as a composite member.

This paper presents an overview of the updates made to the original 1998 BHP Composite Bridge Guide. The newly developed Composite Steel Road Bridges: Guidelines and Charts has been prepared to assist bridge designers with the preliminary design of economical composite steel multi-girder bridges. The information contained in the new guide will enable the fast design of steel multi-girder bridges to be carried out with adequate accuracy for preliminary cost estimating. The document encapsulates valuable information derived from years of collective experience, ensuring that the design process is not only efficient but also aligns with contemporary industry standards.