Open AccessEffect of Different Parameters on Axial Compressive Behavior of Angle Steel Confined Reactive Powder Concrete Short Columns
Author(s) -
Mi Xu,
Zhanfeng Song,
Wang Zhang,
Maomao Yang,
Jing Ji
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/330/2/022106
Subject(s) - materials science , bearing capacity , constitutive equation , structural engineering , bilinear interpolation , finite element method , column (typography) , buckling , bearing (navigation) , compression (physics) , composite material , yield (engineering) , engineering , mathematics , computer science , statistics , connection (principal bundle) , artificial intelligence
This paper presents the mechanical performance of angle steel confined reactive powder concrete (ARRPC) short column under axial compression. A series of analysis were carried out on eleven specimens using RPC, batten plate spacing and slenderness ratio as parameters. The steel model the simplified bilinear constitutive model and RPC model was defined by the nonlinear constitutive model considering hoop effect, then the static simulation of ARRPC short column was carried out by ANSYS. The outcomes of analytical procedures mostly match well with the experimental results, so the rationality of the material constitutive model and the finite element model was verified. Based on this, the static behaviour analysis of eleven groups of ARRPC short column was carried out, and the load-displacement curves of the specimens were obtained. The effect of different parameters on the ultimate bearing capacity of the specimens was investigated. The numerical investigations show that when RPC strength is high, the specimens exhibit relatively large bearing capacity, while slenderness ratio and batten plate spacing increase, the ultimate bearing capacity of the specimen decreases. Finally, it can help propose the calculation formula of the bearing capacity of composite columns.