Confinement and Tension Stiffening Effects in High Performance Self-consolidated Hybrid Fiber Reinforced Concrete Composites

被引：0
|
作者：
Trono, W. [1 ]
Jen, G. [1 ]
Moreno, D. [2 ]
Billington, S. [2 ]
Ostertag, C. P. [1 ]
机构：
[1] Univ Calif, Berkeley, CA 94720 USA
[2] Stanford Univ, Stanford, CA 94305 USA
来源：
HIGH PERFORMANCE FIBER REINFORCED CEMENT COMPOSITES 6 | 2012年 / 2卷
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Confinement and tension stiffening effects were studied on self-consolidating, hybrid fiber reinforced concrete (SC-HyFRC) composites and compared to plain self consolidated concrete (SCC) specimens without fibers. The SC-HyFRC composites consist of both steel macrofibers and PVA microfibers with a total fiber volume fraction of 0.015. Cylindrical specimens were confined by continuous steel spirals with transverse reinforcement ratios ranging from 0.32%-1.91% and tested in uniaxial compression. The SC-HyFRC composites despite 2-3 times smaller transverse reinforcing ratios exhibit similar ductility and softening behavior compared to the plain SCC specimens. The effect of SC-HyFRC composites on tension stiffening behavior was investigated using axially reinforced dogbone specimens. The reinforced SC-HyFRC revealed tension stiffening and carried tension to strains far exceeding the yield strain of the reinforcing steel.
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页码：255 / +
页数：2
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