A theoretical axial stress-strain model for circular concrete-filled-steel-tube columns

2016 ◽  
Vol 125 ◽  
pp. 124-143 ◽  
Author(s):  
M.H. Lai ◽  
J.C.M. Ho
2010 ◽  
Vol 163-167 ◽  
pp. 3826-3829
Author(s):  
Feng Yu ◽  
Ping Wu

FRP-confined concrete filled steel tube may fully use the character of FRP-confined concrete and concrete filled steel tube. Based on the analysis of existing experimental data, the formula of ultimate bearing capacity of FRP-confined concrete filled steel tube is proposed. The mechanical behavior of FRP-confined concrete filled steel tube is mainly related to the equivalent confinement effect coefficient before the rupture of FRP. Based on the static equilibrium condition, the equivalent conversion section is adopted; taking as main parameter, the simplified stress-strain model of FRP-confined concrete filled steel tube is established. The predictions of the model agree well with test data.


2020 ◽  
Vol 211 ◽  
pp. 110312 ◽  
Author(s):  
M.H. Lai ◽  
W. Song ◽  
X.L. Ou ◽  
M.T. Chen ◽  
Q. Wang ◽  
...  

2019 ◽  
Vol 142 ◽  
pp. 149-159 ◽  
Author(s):  
Yirui Zhang ◽  
Yang Wei ◽  
Jiawen Bai ◽  
Yongxing Zhang

2012 ◽  
Vol 204-208 ◽  
pp. 930-933
Author(s):  
Xiao Hu ◽  
Zhen Lin Chen

The paper introduces 3 types of uniaxial stress-strain relationships of concrete filled steel tube by Pan Youguang, Susantha and Saenz, and performs finite element analyses of the axial strengths of 18 CTRC columns, studies the characters of three models, and comprises between the axial strengths from FEA and existed experiments. Results show these 3 types of model are all suitable for bearing analysis, but Pan’s model is more accurate.


Author(s):  
Tadao NAKAGOMI ◽  
Tomohisa YAMADA ◽  
Yuichi ICHIKAWA ◽  
Atsushi SUGIE

2015 ◽  
Vol 19 (6) ◽  
pp. 04015004 ◽  
Author(s):  
Najwa F. Hany ◽  
Elie G. Hantouche ◽  
Mohamed H. Harajli

2021 ◽  
Vol 25 (1) ◽  
pp. 04020078
Author(s):  
Francesco Micelli ◽  
Gennaro Maddaloni ◽  
Fabio Longo ◽  
Andrea Prota

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2626 ◽  
Author(s):  
Yan Li ◽  
Yunhu Lu ◽  
Ramadan Ahmed ◽  
Baoguo Han ◽  
Yan Jin

The cement sheath is the key for providing the zonal isolation and integrity of the wellbore. Oil well cement works under confining pressure, so it exhibits strong nonlinear and ductile behavior which is very different from that without confining pressure. Therefore, for the accuracy of the simulation and the reliability of well construction design, a reliable compression stress–strain model is essential for confined well cement. In this paper, a new axial stress–strain model for confined well cement is developed based on uniaxial and triaxial test data, examinations of failure mechanisms, and the results of numerical analysis. A parametric study was conducted to evaluate and calibrate the model. The model is simple and suitable for direct use in simulation studies and well design. Results from this study show the nonlinear compressive behavior of confined well cement can be predicted using the traditional uniaxial compressive strength test measurements.


Structures ◽  
2020 ◽  
Vol 23 ◽  
pp. 779-788 ◽  
Author(s):  
Haytham F. Isleem ◽  
Muhammad Tahir ◽  
Zhenyu Wang

2017 ◽  
Vol 10 (2) ◽  
pp. 122-131 ◽  
Author(s):  
Hua Luo ◽  
◽  
Weiwei Wang ◽  
Lian Shen ◽  
Guanghui Wang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document