Abstract

Seismic Analysis of Steel MRF with Shape Memory Alloy Equipped Braces

Author(s): B. Anagha and S. Elavenil

Shape memory alloys (SMAs) are used in structural elements to improve the seismic stability of structures. The recentering and damping capacity, together makes SMA elements, the best alloy to go hand in hand with steel structural members in reducing permanent seismic deformations in the structure. In this paper an initiative is taken to try individual and composite arrangement of steel and SMA elements in both eccentric and concentric bracing patterns in the multi storied structure. Studying and comparing the inter story drift and permanent roof displacement values, the best performance in seismic stability is graded with respect to the bracing patterns and material of the conventional steel bracing system.