Numerical Analysis of Carbon Fiber Reinforced Plastic (CFRP) Shear Walls and Steel Strips under Cyclic Loads Using Finite Element Method
Reinforced concrete shear walls are the main elements of resistance against lateral loads in reinforced concrete structures. These walls should not only provide sufficient resistance but also provide sufficient ductility in order to avoid brittle fracture, particularly under strong seismic loads. However, many reinforced concrete shear walls need to be stabilized and reinforced due to various reasons such as changes in requirements of seismic regulations, weaknesses in design and execution, passage of time, damaging environmental factors, patch of rebar in plastic hinges and in some cases failures and weaknesses caused by previous earthquakes or explosion loads. Recently, Fiber Reinforced Polymer (FRP) components have been extensively and successfully used in seismic improvement. This study reinforces FRP reinforced concrete shear walls and steel strips. CFRP and steel strips are evaluated by different yield and ultimate strength. Numerical and experimental studies are done on walls with scale 1/2. These walls are exposed to cyclic loading. Hysteresis curves of force, drift and strain of FRP strips are reviewed in order to compare results of numerical work and laboratory results. Both numerical and laboratory results show that CFRP and steel strips increase resistance, capacity and ductility of the structure.
A. Kheroddin, H. Naderpour, “Nonlinear Finite Element Analysis of R/C Shear Walls Retrofitted Using Externally Bonded Steel Plate and FRP Sheets”, 1st International Structural Specialty Conference, pp. 23-26, 2006
S. Soroshnia, H. Najafi, M. Mamaghani, M. Mehrvand, The Most Complete Practical Reference of ABAQUS, 2nd ed., Negarandeh Danesh, 2014
Dassault Systemes, Abaqus Analysis User’s Manual, Version 6-10, Dassault Systemes Simulia Corp., 2011
I. M. M. Ahmed, Linear and Nonlinear Flexural Stiffness Models for Concrete Walls in High-Rise Buildings, PhD Thesis, University of British Columbia, 2000
D. Mostofinejad, Reinforced concrete structures, 12th ed, Arkaneh Danesh, 2010
A. Saedi-Darian, H. Bahram Pour, H. Arabzadeh, ABAQUS Software Comprehensive Guide, Angizeh, 2011
J. Lee, G. L. Fenves, “Plastic-Damage Model for Cyclic Loading of Concrete Structures”, Journal of Engineering Mechanics, Vol. 124, No. 8, pp. 892-900, 1998
H. T. Hu, F. M. Lin, Y. Y. Jan, “Nonlinear finite element analysis of reinforced concrete beams strengthened by fiber-reinforced plastics”, Composite Structure, Vol. 63, No. 3-4, pp. 271-281, 2004
A. A. Tasnimi, “Strength and deformation of mid-rise shear walls under load reversal”, Engineering Structures, Vol. 22, No. 4, pp. 311-322, 2000
J. H. Thomsen, J. W. Wallace, “Displacement-Based Design of Slender Reinforced Concrete Structural Walls-Experimental Verification”, Journal of Structural Engineering, Vol. 130, No. 4, pp. 618-630, 2004
S. Altin, O. Anil, Y. Kopraman, M. Emin Kara, “Hysteretic behavior of RC shear walls strengthened with CFRP strips”, Composites Part B: Engineering, Vol. 44, No. 1, pp. 321-329, 2013
H. El-Sokkary, K. Galal, “Seismic Behavior of RC Shear Walls Strengthened with Fiber-Reinforced Polymer”, Journal of Composites for Construction, Vol. 17, No. 5, pp. 603-613, 2013
S. Altin, Y. Kopraman, M. Baran, “Strengthening of RC walls using externally bonding of steel strips”, Engineering Structures, Vol. 49 pp. 686–695, 2013
MetricsAbstract Views: 531
PDF Downloads: 159
Authors who publish with this journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after its publication in ETASR with an acknowledgement of its initial publication in this journal.