Numerical study of ultra-high-performance steel fibre-reinforced concrete columns under monotonic push loading

被引：19
作者：
Xu, Shenchun [1 ]
Wu, Chengqing [2 ]
Liu, Zhongxian [3 ]
Li, Jun [2 ]
机构：
[1] Tianjin Univ, Sch Civil Engn, Tianjin, Peoples R China
[2] Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Built Infrastruct Res, Ultimo, NSW, Australia
[3] Tianjin Chengjian Univ, Tianjin Key Lab Civil Struct Protect & Reinforcem, Tianjin 300384, Peoples R China
来源：
ADVANCES IN STRUCTURAL ENGINEERING | 2018年 / 21卷 / 08期
基金：
中国国家自然科学基金;
关键词：
monotonic push loading; numerical simulation; parametric analysis; ultra-high-performance steel fibre-reinforced concrete columns; BEHAVIOR; BOND; RESPONSES; STRENGTH; UHPFRC; SLIP;
D O I：
10.1177/1369433217747710
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A finite element model is developed to investigate the behaviour of ultra-high-performance steel fibre-reinforced concrete columns under combined axial compression and horizontal monotonic push loading. The effects of steel fibre content, axial compression ratio, reinforcement ratio (or rebar ratio), stirrup ratio and shear span ratio on the structural behaviour of ultra-high-performance steel fibre-reinforced concrete columns are investigated in detail. The numerical model shows good agreement in bond-slip behaviour of specimens based on CEB model results and numerical results, and such behaviour should be taken into consideration in engineering practice. The results indicate that the developed finite element model could predict the structural behaviour and failure mode of ultra-high-performance steel fibre-reinforced concrete columns effectively. It is found that the reinforcement ratio, axial compression ratio, shear span ratio and volume fraction of steel fibre have a great influence on both the structural behaviour and failure modes of specimens.
引用
收藏
页码：1234 / 1248
页数：15
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