Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

Damping properties of steel frame equipped with traditional and shape-memory alloy braces

Davide Fugazza*
European School for Advanced Studies in Reduction of Seismic Risk (ROSE School), University of Pavia, Via Ferrata 1, 27100 Pavia, Italy

  Full Text
In this work the attention is focused on the seismic performance of a three-story steel frame equipped with either steel or shape-memory alloy (SMA) braces. A number of non-linear time-history analyses are carried out and the dynamic performance of the structure is judged through computation of the interstory drift as well as the residual drift. The efficacy of the new materials in reducing earthquake-induced vibrations is numerically evaluated by studying the role of superelastic hysteresis.

Keywords:  Shape-memory alloys; Smart materials; Earthquake engineering; Dynamic analysis; Steel structures; Bracing systems

* Tel.: +1 39 0382 985 475; Fax: +1 39 0382 528 422; E-mail: