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Riverworks at Eastern Wharf is a mixed-use development in Savannah, GA, USA. A massive fire at the construction site caused severe damage to this project. The article describes the investigation of the structure’s condition after the fire, damage evaluation, and repair of the concrete structure of the podium slab and post-tensioning cables.
Available in the following language(s): Spanish, Japanese
Every year, ACI Foundation’s Concrete Research Council hosts a request for proposals (RFP) program that awards funding to several concrete research projects. The article describes one of these projects that focused on developing a time-dependent design model capturing the complex reality of how creep and shrinkage phenomena are interconnected.
Available in the following language(s): Spanish
This month’s Q&A focuses on training requirements for operators of devices used for floor flatness/levelness testing. It discusses whether “legacy training” is enough, or examination and certification are required. It also reviews ACI documents for provisions and recommendations regarding this topic.
Available in the following language(s): Spanish
Undercut anchors reliably transfer high static and cyclic loads into concrete by a robust mechanical interlock. To evaluate performance of post-installed anchors, the design strength was compared for three types of mechanical anchors (undercut anchor, screw anchor, and expansion anchor) and one adhesive anchor embedded in concrete and the load-displacement performance was compared for an undercut and adhesive anchor.
Available in the following language(s): Spanish
This article is Part 2 of a two-part examination of the design and analysis of curved tunnel linings placed in direct contact with and restrained by the surrounding ground. While Part 1 focused on design considerations and a brief history of tunnel linings, Part 2 provides recommendations for tunnel analysis and proposes changes to ACI capacity calculations
Available in the following language(s): Spanish