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N. Gao¹, J.-S. Jeon¹, R. DesRoches¹ and D.E. Hodgson²

¹School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
²Nitinol Technology Inc., Palo Alto, California, United States of America

doi:10.4203/ccp.108.121

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N. Gao, J.-S. Jeon, R. DesRoches, D.E. Hodgson, "Cyclic Testing of a Shape Memory Alloy Ring Device for Seismic Building Retrofit", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 121, 2015. doi:10.4203/ccp.108.121

Keywords: shape memory alloy ring, re-centering, damping, cyclic loading.

Summary

A shape memory alloy (SMA)-based ring bracing system is developed and tested for seismic resisting applications. This bracing system is a tension-only resistance system consisting of a shape memory alloy ring and four cables. This system effectively creates a system with an adjustable amount of re-centering and damping, which can arguably be used in a wide spectrum of new and existing building structures. The system was subjected to a cyclic loading protocol to assess the hysteretic response of the entire system and individual components. The system keeps good strength, ductility, re-centering, and stable hysteresis up to a story drift of 3.5 percent. This bracing system can be adjusted for different frame configurations and different design capacities. All these features make this bracing system versatile and adaptive for application in different types of building structures.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 108 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping Paper 121 Cyclic Testing of a Shape Memory Alloy Ring Device for Seismic Building Retrofit N. Gao¹, J.-S. Jeon¹, R. DesRoches¹ and D.E. Hodgson² ¹School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America ²Nitinol Technology Inc., Palo Alto, California, United States of America doi:10.4203/ccp.108.121 purchase the full-text of this paper Full Bibliographic Reference for this paper N. Gao, J.-S. Jeon, R. DesRoches, D.E. Hodgson, "Cyclic Testing of a Shape Memory Alloy Ring Device for Seismic Building Retrofit", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 121, 2015. doi:10.4203/ccp.108.121 Keywords: shape memory alloy ring, re-centering, damping, cyclic loading. Summary A shape memory alloy (SMA)-based ring bracing system is developed and tested for seismic resisting applications. This bracing system is a tension-only resistance system consisting of a shape memory alloy ring and four cables. This system effectively creates a system with an adjustable amount of re-centering and damping, which can arguably be used in a wide spectrum of new and existing building structures. The system was subjected to a cyclic loading protocol to assess the hysteretic response of the entire system and individual components. The system keeps good strength, ductility, re-centering, and stable hysteresis up to a story drift of 3.5 percent. This bracing system can be adjusted for different frame configurations and different design capacities. All these features make this bracing system versatile and adaptive for application in different types of building structures. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £75 +P&P)
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