Recent failures of gusset plate bridge connections and the current national urgency to properly design and rate gusset truss connection points to the need for further analytical and experimental investigations to verify and/or modify existing procedures, and to provide guidance to the bridge engineers for the proper design and rating of riveted and bolted gusset-plated connections. In addition, the lack of uniformity and best practices in the design and load rating of gusset connections results in confusion, unknown safety hazards, and possibly unnecessary checks. There is a pressing urgency to develop safe guidelines and procedures to help bridge owners design and load rate steel bridge gusset connections. These guidelines must be verified to ensure that connections are not only properly designed and rated but most importantly without imposing unnecessary burdens. The new guidelines are expected to assure the safety of new and existing bridges and simplify design and rating to avoid unfavorable failure modes.
Todevelop guidelines, specifications, and examples for the load and resistance factor design and rating of gusset connections.