The research on strain rate effect of compressive behaviour of concrete column
ZOU Du-jian; LIU Tie-jun; TENG Jun; YAN Gui-lan
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Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518255, China
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Received
Revised
Published
1900-01-01
1900-01-01
2012-01-28
Issue Date
2012-01-28
Abstract
Concrete is a typical rate-sensitive material. According to different strain rate, the compressive behaviour of plain concrete column is affected obviously. In this paper, axial compressive tests for plain concrete columns with different strain rate (10-5/s10-2/s) were carried out. The rate effect on constitutive relation, compressive strength, elastic modulus, peak strain, energy absorption capacity and failure mechanism of concrete columns were studied. The effect of stiffness of machine and inertia effect on experimental results were also discussed. The experimental results show that the compressive strength was increased by 7.45%, 19.51%, 29.23%, when the strain rate was 10-4/s, 10-3/s, 10-2/s, compared with quasi-static strain rate 10-5/s. The variation of elastic modulus could be neglected while the peak strain, energy absorption were increased obviously. In addition, the use of rigid components improved the stability of strain rate and the effect of inertia effect on experimental results could be neglected.
ZOU Du-jian;LIU Tie-jun;TENG Jun;YAN Gui-lan.
The research on strain rate effect of compressive behaviour of concrete column[J]. Journal of Vibration and Shock, 2012, 31(2): 145-150
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