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http://dx.doi.org/10.11004/kosacs.2014.5.1.028

Design of Innovative SMA PR Connections Between Steel Beams and Composite Columns  

Son, Hong Min (Department of Civil and Environmental Engineering, Incheon National University)
Leon, Roberto T. (Virginia Polytechnic Institute and State University)
Hu, Jong Wan (Department of Civil and Environmental Engineering, Incheon National University)
Publication Information
Journal of the Korean Society for Advanced Composite Structures / v.5, no.1, 2014 , pp. 28-36 More about this Journal
Abstract
This study describes the development of innovative connections between steel beams and concrete-filled tube columns that utilize a combination of low-carbon steel and super-elastic shape memory alloy components. The intent is to combine the recentering behavior provided by the shape memory alloys to reduce building damage and residual drift after a major earthquake with the excellent energy dissipation of the low-carbon steel. The analysis and design of structures requires that simple yet accurate models for the connection behavior be developed. The development of a simplified 2D spring connection model for cyclic loads from advanced 3D FE monotonic studies is described. The implementation of those models into non-linear frame analyses indicates hat the recentering systems will provide substantial benefits for smaller earthquakes and superior performance to all-welded moment frames for large earthquakes.
Keywords
steel beams; utilize a combination of low-carbon steel; recentering systems;
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