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Mathematical Problems in Engineering
Volume 2013, Article ID 416282, 12 pages
http://dx.doi.org/10.1155/2013/416282
Research Article

Experimental Research on Passive Control of Steel Frame Structure Using SMA Wires

1School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China
2Faculty of Infrastructure Engineering, Dalian University Technology, Dalian 116024, China
3Commission for Discipline Inspection Supervision and Audit, Shenyang Agricultural University, Shenyang 110866, China
4CAMCE WHU Design & Research Co., Ltd., Wuhan 430073, China
5Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA

Received 3 August 2013; Accepted 17 October 2013

Academic Editor: Gang Li

Copyright © 2013 Shi Yan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Mechanical properties of shape memory alloy (SMA) wires were experimentally researched in this paper, and an energy dissipater made of SMA wire cable was designed and applied in a steel frame structure model by using superelasticity characteristics of SMAs to passively reduce dynamic responses of the steel frame structure under seismic load. For the characteristics of large relative displacements between the stories of the steel frame structure on both diagonal ends and the consideration of initial prestrain effects of the SMA cables, three kinds of the whole control, the part control, and no control of the shaking table tests and numerical simulations were carried, respectively. Through the results of the shaking table test and numerical simulation analysis, the dynamic responses such as the maximum displacement, velocity, and acceleration at the top layer of the steel frame structure applied with SMA cables are significantly decreased compared with the no control case. However, considering the premise of both effectiveness and efficiency, the part control effect is superior to the whole control. In many cases, it can meet the control requirement of reducing the maximum displacement and acceleration, while the superelasticity of SMAs can be sufficiently played, realizing the passive control purposes of the steel frame structure based on the energy dispassion through the application of the SMA cables. The proposed method has broad application prospects in the passive control field of building structures.