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Abstract
Shape memory alloys (SMAs) have the ability to undergo large deformations with minimum residual strain and also the extraordinary ability to undergo reversible hysteretic shape change known as the shape memory effect. The shape memory effect of these alloys can be utilised to develop a convenient way of actively confining concrete sections to improve their shear strength, flexural ductility and ultimate strain capacity. Most of the previous work on active confinement of concrete using SMA has been carried out on circular sections. In this study retrofitting strategies for active confinement of non-circular sections have been proposed. The proposed schemes presented in this paper are conceived with an aim to seismically retrofit a beam-column joint in non-seismically designed reinforced concrete buildings.
The complex material behaviour of SMAs depends on number of parameters. Depending upon the alloying elements, SMAs exhibit different behaviour in different conditions and are highly sensitive to variation in temperature, phase in which it is used, loading pattern, strain rate and pre-strain conditions. Therefore, a detailed discussion on the behaviour of SMAs under different thermo-mechanical conditions is presented first in this paper.
The complex material behaviour of SMAs depends on number of parameters. Depending upon the alloying elements, SMAs exhibit different behaviour in different conditions and are highly sensitive to variation in temperature, phase in which it is used, loading pattern, strain rate and pre-strain conditions. Therefore, a detailed discussion on the behaviour of SMAs under different thermo-mechanical conditions is presented first in this paper.
Original language | English |
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Title of host publication | XVI Convegno ANIDIS L'Aquila 13-17 settembre 2015 Università degli Studi dell'Aquila. Proceedings. |
Number of pages | 9 |
Publication status | Published - 13 Sep 2015 |
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Dive into the research topics of 'Shape Memory Alloy Features for Seismic Retrofitting of External RC Beam-Column Joint'. Together they form a unique fingerprint.Activities
- 1 Participation in conference
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XVI Convegno Anidis, Italian National Association of Eartquake Engineering
Giuseppina Amato (Participant)
13 Sep 2015 → 17 Sep 2015Activity: Participating in or organising an event types › Participation in conference