Title: Innovative Seismic Retrofits for Resilient Reinforced Concrete Buildings (NEES-2010-0928)
Year Of Curation: 2015
Description: The project team will evaluate the efficacy of a new class of innovative systems with recentering and/or high damping capabilities, and develop a framework for their design and implementation to retrofit reinforced concrete (RC) buildings to improve seismic performance. The goal is to validate, via innovative large scale field testing, a new class of retrofits for RC buildings. Five retrofit measures will be investigated, consisting of novel bracing systems, beam-column connection elements, or columns wraps. Common advantageous characteristics of the systems include the ease of application (requiring little-to-no heavy machinery), scalability and adaptability, passive nature, and need for little-to-no maintenance through the life-cycle. Furthermore, these systems aim to provide improved seismic performance in terms of minimal damage, enhanced post-event functionality, and improved cost-benefit compared to traditional retrofit approaches. The use of advanced materials in innovative systems will result in improved seismic retrofits for RC buildings that may find more widespread adoption due to their efficient design, minimal maintenance or disruption for installation, and enhanced cost-effectiveness. The research includes a series of unique multi-scale experiments, coupled with detailed finite element simulations, fragility analyses, and cost-benefit studies.
PIs & CoPIs: Reginald DesRoches, Roberto Leon, Claudia Marin-Artieda, Jamie Padgett, Yang Wang
Dates: October 10, 2008 - December 18, 2014
Organizations: Georgia Institute of Technology, GA, United States
Facilities: Georgia Institute of Technology, GA, United States, University of California, Los Angeles, CA, United States
Sponsor: NSF - n/a - 1041607
Keywords: Shape Memory Alloys, Energy dissipation, Articulated Quadrilateral Device
Publications: "FEMA 547 Document, 2006 Edition"
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