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Numerical Analysis and Application on Angle-steel Confined High-strength Concrete Short Columns under Axial Compression Based on ANSYS Software
JI Jing 1 * #,ZHANG Yunlei 2,ZHANG Wenfu 1,YUAN chaoqing 1,LIU Yungchun 1,WANG Shuwei 1,XU Songzhi 1
1.Heilongjiang Key Laboratory of Disaster Prevention,Mitigation and Protection Engineering, College of Civil Engineering,Northeast Petroleum University,Daqing 163318
2.Department of Civil and Environmental Engineering, faculty of construction and environment, The Hong Kong Polytechnic University , Harg Hom, Kowloon Hong Kong, China
*Correspondence author
#Submitted by
Subject:
Funding: specialized research fund project for higher college doctoral professional for the Ministry of Education (No.New Teacher Class: 20122322120004), Heilongjiang province natural science fund project (No.E201336)
Opened online: 8 January 2016
Accepted by: none
Citation: JI Jing,ZHANG Yunlei,ZHANG Wenfu.Numerical Analysis and Application on Angle-steel Confined High-strength Concrete Short Columns under Axial Compression Based on ANSYS Software[OL]. [ 8 January 2016] http://en.paper.edu.cn/en_releasepaper/content/4674742
 
 
In order to promote the application of angle-steel confined high-strength concrete (ACHC)columns in new construction and reinforcement projects of civil engineering, this paper took the hoop coefficient, strength grade of concrete and yield strength of steel as parameters, 15 angle-steel confined high-strength concrete(ACHC)short columns with a shear span ratio of 1.5 were designed under axial compression. Based on simplified steel constitutive model and confined concrete constitutive model considering hoop effect, the finite element simulation analysis on them was carried out, by comparing with the experimental data the rationality of finite element modeling is verified. The author investigate the influence for different hoop coefficient, different concrete strength grade and different yield strength of steel to mechanic behavior of ACHC short columns. Considering the hoop effect of batten plate to concrete, the influence factor of the slab is introduced, and the linear relationship between the influence factor and the hoop coefficient is inverted by using 1stopt software. Calculation formula of ultimate bearing capacity of ACHC short columns under axial compression is gotten and design method and design suggestion of this kind of short column is put forward. The results show that hoop coefficient for influence of bearing capacity and ductility of short column is more significantly than other parameters, which can lay a foundation for application of this kind of short columns in new construction and reconstruction projects.
Keywords:Civil Engineering; Angle-steel Confined High-strength Concrete; Axial Compression; Short Column; Hoop coefficient; Bearing capacity; Design suggestion.
 
 
 

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