Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improvement of the mechanical performances of concrete cylinders confined actively or passively by means of SMA wires
The present study deals with crush tests of concrete cylinders confined by shape memory alloy (SMA) wires. Two cases were considered. First, an active confinement was achieved by wrapping a wire previously prestrained in martensitic state and then subjected to the memory effect. Second, a passive confinement was obtained by using the same SMA, but in austenite state. For comparison purpose, an unconfined cylinder was also tested. The influence of the unwrapped zones of the confined cylinders was also investigated, leading to the use of a specially designed device to avoid premature failure in these zones. The comparison between active and passive confinements was investigated. The test results show that stiffness, strength and ductility are significantly improved in the case of the active confinement.
Improvement of the mechanical performances of concrete cylinders confined actively or passively by means of SMA wires
The present study deals with crush tests of concrete cylinders confined by shape memory alloy (SMA) wires. Two cases were considered. First, an active confinement was achieved by wrapping a wire previously prestrained in martensitic state and then subjected to the memory effect. Second, a passive confinement was obtained by using the same SMA, but in austenite state. For comparison purpose, an unconfined cylinder was also tested. The influence of the unwrapped zones of the confined cylinders was also investigated, leading to the use of a specially designed device to avoid premature failure in these zones. The comparison between active and passive confinements was investigated. The test results show that stiffness, strength and ductility are significantly improved in the case of the active confinement.
Improvement of the mechanical performances of concrete cylinders confined actively or passively by means of SMA wires
Archiv.Civ.Mech.Eng
Tran, H. (Autor:in) / Balandraud, X. (Autor:in) / Destrebecq, J. F. (Autor:in)
Archives of Civil and Mechanical Engineering ; 15 ; 292-299
01.03.2015
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Stress–strain behavior of actively and passively confined concrete under cyclic axial load
| British Library Online Contents | 2016
Structural performances of thermally conditioned PBO FRCM confined concrete cylinders
| British Library Online Contents | 2017
Structural performances of thermally conditioned PBO FRCM confined concrete cylinders
| British Library Online Contents | 2017
The behavior of concrete cylinders confined by shape memory alloy wires
| British Library Online Contents | 2008
Experimental study of non-circular concrete elements actively confined with shape memory alloy wires
| British Library Online Contents | 2014