Abstract
The behaviour of CFRP confined concrete column under axial compressive force and the longitudinal constraint mechanism of specimen on different CFRP wrapped ways were studied by tests of three CFRP confined concrete columns and one reference concrete column and by three-dimensional nonlinear FEM (finite element method) analysis. The result indicated that when the axial compressive stress is large than 0.8~0.9 times of peak stress, the lateral expansion deformation of concrete increases rapidly. The longitudinal strain-circumferential strain relationship curve is in linear convergence. There exists strain concentration of the strap wrapped specimens in the place where no CFRP is wrapped. Based on the distribution of the lateral tensile strains εF along the longitudinal axis at different relative stress levels of CFRP confined concrete columns, the whole procedure of axially loaded experiment of specimens can be divided into three phases: elastic stage, elastic-plastic stage, plastic stage.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Reference
Toutanji, H., and Saafi, M. (2002). “Stress-strain behaviour of concrete columns confined with hybrid composite materials.” Mater. Struct., vol. 35, 338–347.
Li, Y., Lin, C., and Sung, Y. (2003). “A constitutive model for concrete confined with carbon fiber reinforced plastics.” Mechanics of Materials, vol. 35, 603–619.
L.P. Ye, K. Zhang, S.H. Zhao, and P. Feng. (2003). “Experimental study on seismic strengthening of RC columns with wrapped CFRP sheets.” Construction and Building Materials, vol. 17, 499–506.
Wu, G., and LÜ, Z. (2003). “Study on the stress-stain relationship of FRP confined concrete circular column without a strain-softening response.” Architecture and Structure, vol. 24(25), 1–9.
Li, J., Qiang, J., and Jiang, J. (2004). “Axial compressive loading test of FS confined concrete column and nonlinear finite element analysis.” Architecture and Structure.
Yu, Q. (2000). “Calculation of bearing capacity and strength of FRP confined concrete columns.” Ind. Constr., vol. 30(10), 31–34.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Springer
About this paper
Cite this paper
Chen, Y., Zheng, P., Ni, J., Chang, L., Yang, F. (2007). 3D Mechanical Analysis of Axially Loaded Cfrp Confined Concrete Columns. In: Gdoutos, E.E. (eds) Experimental Analysis of Nano and Engineering Materials and Structures. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6239-1_399
Download citation
DOI: https://doi.org/10.1007/978-1-4020-6239-1_399
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-6238-4
Online ISBN: 978-1-4020-6239-1
eBook Packages: EngineeringEngineering (R0)