Retrofit of Reinforced Concrete Columns
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Publisher:The Ohio State University
Series/Report no.:The Ohio State University. Department of Civil, Environmental and Geodetic Engineering Honors Theses; 2017
Many reinforced concrete structures are deficient in stiffness, ductility, and strength capacity compared to current standards. When a powerful event, such as an earthquake, occurs, un-strengthened and inadequate concrete members may fail and produce catastrophic results. In order to counteract this problem, many different retrofit and repair methods have been studied, implemented and have produced a variety of results. This research is focused on comparing dozens of retrofit and repair methods for reinforced concrete columns in order to analyze the efficacy of these methods. The primary methods compared are reinforced concrete jacketing and a variety of steel confinement methods. The steel confinement methods include steel jackets, steel cages, precambered steel plates, and pre-stressed steel sections. A variety of constraints are compared across the methods including the loading, interface mechanisms, connection methods, size and orientation of the jacket. Each retrofit method functions differently under each constraint, and the benefits and downsides of each were discussed and compared.
Engineering Research Scholarship
Academic Major: Civil Engineering