Time-Dependent Behavior of Damaged Reinforced Concrete Shear Walls Strengthened with Composite Plates Having Variable Fibers Spacing
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32769
Time-Dependent Behavior of Damaged Reinforced Concrete Shear Walls Strengthened with Composite Plates Having Variable Fibers Spacing

Authors: R. Yeghnem, L. Boulefrakh, S. A. Meftah, A. Tounsi, E. A. Adda Bedia

Abstract:

In this study, the time-dependent behavior of damaged reinforced concrete shear wall structures strengthened with composite plates having variable fibers spacing was investigated to analyze their seismic response. In the analytical formulation, the adherent and the adhesive layers are all modeled as shear walls, using the mixed Finite Element Method (FEM). The anisotropic damage model is adopted to describe the damage extent of the Reinforced Concrete shear walls. The phenomenon of creep and shrinkage of concrete has been determined by Eurocode 2. Large earthquakes recorded in Algeria (El-Asnam and Boumerdes) have been tested to demonstrate the accuracy of the proposed method. Numerical results are obtained for non-uniform distributions of carbon fibers in epoxy matrices. The effects of damage extent and the delay mechanism creep and shrinkage of concrete are highlighted. Prospects are being studied.

Keywords: RC shear wall structures, composite plates, creep and shrinkage, damaged reinforced concrete structures, finite element method.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1110305

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1616

References:


[1] S. Benyoucef, A. Tounsi, S. A. Meftah, E.A. Adda Bedia "Approximate analysis of the interfacial stress concentrations in FRP-RC hybrid beams". Composite Interface Journal, 13, 561-571, (2006).
[2] A. Tounsi "Improved theoretical solution for interfacial stresses in concrete beams strengthened with FRP plates", International Journal of Solids and Structures, 43, 4154- 4174, (2006).
[3] R Yeghnem, S.A. Meftah, A. Tounsi, E.A. AddaBedia "Earthquake response of RC coupled shear walls strengthened with thin composite plates". Journal of Vibration and Control, 15, 963-985, (2009).
[4] S.A. Meftah, R. Yeghnem, A. Tounsi, E.A. AddaBedia "Seismic behavior of RC coupled shear walls repaired with CFRP laminates having variable fibres spacing", Journal of Construction and building materials, 21, 1661-1671, (2007).
[5] S. Benyoucef, A. Tounsi, E.A. AddaBedia, S.A. Meftah "Creep and shrinkage effect on adhesive stresses in RC beams strengthened with composite laminates", Composites science and technology, 67, 933-942, (2007).
[6] Y.K. Cheung, Tall building 2. Handbook of structural concrete. F.K Kong and al. (eds.) Pitman Books Limited, London, England, (1983).
[7] D.G. Lee An efficient element for analysis of frames with shear walls ICES88. Atlanta, GA, (1987).
[8] A.K.H. Kwan "Analysis of building used strain based element with rotational DOF", Journal of Structural Engineering, 118, 1191-1121, (1992).
[9] EUROCODE 2. Design of concrete structures. Pt 1-1: General Rules and Rules for Buildings. Editorial Group, Brussels, (1991).
[10] H. Trost, J. Wolff "Zurwirklichkeitsnahenermittlung der beanspruchungen in abschnittsweisehergestelltenspannbetontragwerken", Der Bauingenieur, 45, 155-169, (1970).
[11] G. Z.Voyiadjis, P. I. Kattan “ A plasticity damage theory for large deformation of solids- I. Theoretical formulation, International Journal of Engineering Science, 30, 1080-1089, (1992).
[12] T. Q.Yu, XS Miao, J. M. Xiong, H.Jian, H.Lee. “An orthotropic damage model for concrete at different temperatures”, Engineering Fracture Mechanic, 32, 775-786, (1989).
[13] HS Shen, Y Chen, LS Wen, “Bending and vibration characteristics of damaged RC slabs strengthened with externally bonded CFRP sheets “ Composite Structures, 63, 231-242, (2004).
[14] S.A. Meftah, R. Yeghnem, A. Tounsi, E.A. AddaBedia "Lateral stiffness and vibration characteristics of composites plated RC shear walls with variable fibres spacing", Journal of Material and Design. 29, 1955-1964, (2008).