xperimental Study on the Dynamic Properties of SMA Reinforced Concrete Columns

CUI Di ;LI Hong-nan;SONG Gang-bing

Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (4) : 150-154.

PDF(1848 KB)
PDF(1848 KB)
Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (4) : 150-154.
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xperimental Study on the Dynamic Properties of SMA Reinforced Concrete Columns

  • CUI Di 1 ;LI Hong-nan 2; SONG Gang-bing 3
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Abstract

The influence of shape memory alloys (SMAs) on the vibration performances of concrete columns were studied through initial displacement method. In this study, SMA reinforced concrete columns are fabricated by embedding SMA wires with different phases. The experiment includes two parts: one is the free vibration test; the other is the vibration test with current activation. The test results indicate that the state (or phase) of SMAs has evident influence on the damping ratio of the concrete columns. Moreover, the recovery force generated during the phase transformation has great influence on the frequency of the concrete columns. Therefore, SMAs can be utilized to change the dynamic properties of concrete members or structures to control the structural vibration effectively.

Key words

shape memory alloy / concrete column / dynamic properties / damping ratio / frequency

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CUI Di ;LI Hong-nan;SONG Gang-bing . xperimental Study on the Dynamic Properties of SMA Reinforced Concrete Columns[J]. Journal of Vibration and Shock, 2010, 29(4): 150-154
PDF(1848 KB)

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