ACI 345.2R-13 PDF Download

ACI 345.2R-13 is a standard guide for widening highway bridges. The purpose of this guide is to provide information on the technical aspects of widening concrete bridges and bridges with concrete decks. The focus is primarily on bridge decks, although substructure issues are also addressed.

One of the main reasons for widening highway bridges is to address functional obsolescence before they become structurally deficient. It is generally more cost-effective to widen bridges rather than replacing them entirely. This guide aims to share research findings and practical experience regarding bridge widening.

The guide discusses various technical issues related to bridge widening, including the effects of differential movements between the existing and new portions of the bridge. It also addresses the challenges posed by traffic on the existing structure during construction. Recommendations are provided on the choice of structure type, design details, construction methods, and materials.

It is important to note that the materials, processes, quality-control measures, and inspections outlined in this guide should be executed or monitored by individuals possessing the appropriate ACI certifications or their equivalents. This ensures that the necessary expertise and knowledge are applied to the widening process for highway bridges.