Finite Element Analysis of Reinforced RC Bracket Using CFRP Plates

Journal of Solid Mechanics

مقاله 4، دوره 8، شماره 4، اسفند 2016، صفحه 734-743   

نوع مقاله: Research Paper

نویسندگان

A Rafati¹؛ S.V Razavi^{* 2}

¹Department of Civil, Dezful Branch, Islamic Azad university, Dezful, Iran

²Department of Civil Engineering, Jundi-shapor University of Technology, Dezful, Iran

چکیده

CFRP composites have unique application qualities such as high resistance and durability to environmental conditions, having relatively low weight and easy to install in strengthening concrete structure elements. The brackets should be strengthen sufficiently if they are not calculated and implemented well. Application of the CFRP is one of the methods for such purposes. The study involves using five different configurations of CFRP sheets as a means of strengthening bracket, using finite element and non-linear dynamic analysis method within the ABAQUS software. Comparative analysis results of non-strengthened bracket model, show a 24.06% increase in the load-carrying capacity of strengthened models using the CFRP compared with the initial model (without CFRP). Results further show an increase of 24.96% of energy absorption in the strengthened models compared with the non-strengthened model.

کلیدواژه‌ها

Bracket؛ Load carrying capacity؛ energy absorption؛ CFRP؛ ABAQUS

مراجع

[1] Zeinoldini M. 2010, The Investigation of Performance of FRP Materials in Strengthening Concrete Buildings, MA Thesis, Shahid Bahonar University of Kerman.
[2] Abou Elez Y., 1997 , Behavior of Reinforced Concrete Columns Confined with Advanced Composite Materials, Ph.D. Thesis, Minia University, Egypt.
[3] Norris T., Saadatmanesh H., Ehsani M., 1997 , Shear and flexural strengthening of R/C beams with carbon fiber sheets, Journal of Structural Engineering 123(7 ): 903-911.
[4] Dolan Ch., Corry R., 2001 , Strengthening and repair of a column bracket using a carbon fiber reinforced polymer(CFRP)fabric , PCI Journal 46: 54-63.
[5] Erfan A., Abdel Rahman G., Nassifand M., Hammad Y., 2010 , Behaviour of Reinforced Concrete Corbels Strengthened with CFRP Fabrics, Benha University.
[6] Elgwady M., Rabie M., Mostafa M., 2009 , Strengthening of Corbels Using CFRP an Experimental Program, Cairo University, Giza, Egypt.
[7] Ozden S., Meydanli Atalay H., 2001 , Strengthening and Repair of a column Bracket using a Carbon Fiber Reinforced Polymer Fabric, PCI Journal 46(1): 54-63.
[8] Yao L., Wan Y., Liang Ch., Hwan Y., Sin L., 2012 , Reinforced concrete corbels strengthened with carbon fiber reinforced plastics, Computers and Concrete 10(3): 259-276.
[9] Halvaey Far M.R. , Razavi T. V., 2011 , Nonlinear analysis of load-deflection testing of reinforced one-way slab strengthened by carbon fiber reinforced polymer (CFRP) and using artificial neural network (ANN) for prediction , International Journal of the Physical Sciences 6(13): 3054-3061.
[10] Hansen E., Willam K. , Carol I., 2001 , A two-surface anisotropic damage/plasticity model for plain covcrete , Proceedings of Framcos-4 Conference Paris , Fracture Mechanics of Concrete Materials.
[11] ABAQUS V6.13 Manuals, 2013 , Providence, RI: Dassault Systemes.
[12] Taqieddin Z., 2008 , Elasto-Plastic and Damage Modeling of Reinforced Concrete, Ph.D. Dissertation, Louisiana State University, Baton Rouge, LA.
[13] Mander J.B., Priestley M.J.N., Park R., 1988 , Theoretical Stress-Strain Model for Confined Concrete , Fellow, ASCE.
[14] Tosonos A. G., Tegos I. A., Penelis G. G., 1992, Seismic Resistance of Type 2 Exterior BeamColumn Reinforced with Inclined Bars, ACI Structural Journal 89(1): 3-12.