Application of Shape Memory Alloys in Seismic Isolation: A Review

Document Type : Research Papers


1 M.Sc., Student, School of Civil Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran.

2 Associate Professor, School of Civil Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran.


In the last two decades, there has been an increasing interest in structural engineering control methods. Shape memory alloys and seismic isolation systems are examples of passive control systems that use of any one alone, effectively improve the seismic performance of the structure. Characteristics such as large strain range without any residual deformation, high damping capacity, excellent re-centering, high resistance to fatigue and corrosion and durability have made shape memory alloy an effective damping device or part of base isolators. A unique characteristic of shape memory alloys is in recovering residual deformations even after strong ground excitations. Seismic isolation is a device to lessen earthquake damage prospects. In the latest research studies, shape memory alloy is utilized in combination with seismic isolation system and their results indicate the effectiveness of the application of them to control the response of the structures. This paper reviews the findings of research studies on base isolation system implemented in the building and/or bridge structures by including the unique behavior of shape memory alloys. This study includes the primary information about the characteristic of the isolation system as well as the shape memory material. The efficiency and feasibility of the two mechanisms are also presented by few cases in point.


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Volume 47, Issue 2 - Serial Number 2
December 2014
Pages 153-171
  • Receive Date: 11 May 2013
  • Revise Date: 08 December 2013
  • Accept Date: 28 December 2013
  • First Publish Date: 01 December 2014