Geopolymer concrete-filled FRP tubes: Behavior of circular and square columns under axial compression

2016 ◽  
Vol 96 ◽  
pp. 215-230 ◽  
Author(s):  
Togay Ozbakkaloglu ◽  
Tianyu Xie
2021 ◽  
Author(s):  
Shaheen Kanwal ◽  
Qasim Khan ◽  
M. Neaz Sheikh ◽  
Asad Qazi ◽  
Muhammad Hadi

2017 ◽  
Vol 210 ◽  
pp. 203-210
Author(s):  
Zhi-Jian Zhang ◽  
Hai-Yan Zhang ◽  
Jun-Hong Zheng ◽  
Kai-Hang Lin ◽  
Yi Su

2019 ◽  
Vol 198 ◽  
pp. 109498 ◽  
Author(s):  
T. Jiang ◽  
X.M. Wang ◽  
G.M. Chen ◽  
J.J. Zhang ◽  
W.P. Zhang

2005 ◽  
Vol 8 (4) ◽  
pp. 443-449 ◽  
Author(s):  
Zhenyu Zhu ◽  
Iftekhar Ahmad ◽  
Amir Mirmiran

Axial compression tests have shown fiber reinforced polymer (FRP) tubes to significantly enhance both strength and ductility of concrete columns. However, most experiments and associated models typically do not account for the internal reinforcement, size effect of the column, and the end load-bearing conditions of the tube. An experimental program was undertaken to evaluate the effect of these parameters on the performance of CFFT columns. Glass FRP tubes filled with plain, steel-reinforced, and glass FRP-reinforced concrete were tested with and without end grooves, which would prevent the tube from directly bearing of the axial load. The experiments showed the dowel action of the internal reinforcement to improve the ductility of the columns by restraining the lateral dilation of concrete core. Anempirically derived confinement model, augmented with the stress-strain response of the internal reinforcement, showed close agreement with test results.


2012 ◽  
Vol 204-208 ◽  
pp. 972-977
Author(s):  
Yun Feng Zhang ◽  
Shou Kang Liu ◽  
De Wang Zhao

Through the axial compression experiment of 9 GFRP tubes reinforced concrete columns, this paper analyzes the failure mode and loading-strain curves under different pipe diameter, and compares bearing capacity between the experimental data with FRP reinforced concrete and the calculated value without GFRP tubes reinforced concrete. he results show that the bearing capacity and ductility of GFRP tubes reinforced concrete column have improved, because of the restriction effect of FRP tubes. The confining ability of FRP tubes on concrete reduced for a certain thickness GFRP tubes constraint concrete short column, while the pipe diameter is increasing.


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