American Journal of Civil Engineering and Architecture
ISSN (Print): 2328-398X ISSN (Online): 2328-3998 Website: http://www.sciepub.com/journal/ajcea Editor-in-chief: Mohammad Arif Kamal
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American Journal of Civil Engineering and Architecture. 2014, 2(1), 42-52
DOI: 10.12691/ajcea-2-1-5
Open AccessArticle

Energy Absorption Capacity of Reinforced Concrete Beam-Column Connections, with Ductility Classes Low

Mohammadamin Azimi1, Azlan Bin Adnan1, Mohd Hanim Osman1, , Abdul Rahman Bin Mohd Sam1, Iman Faridmehr1 and Reza Hodjati1

1Department of Structure & Material, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Malaysia

Pub. Date: March 04, 2014

Cite this paper:
Mohammadamin Azimi, Azlan Bin Adnan, Mohd Hanim Osman, Abdul Rahman Bin Mohd Sam, Iman Faridmehr and Reza Hodjati. Energy Absorption Capacity of Reinforced Concrete Beam-Column Connections, with Ductility Classes Low. American Journal of Civil Engineering and Architecture. 2014; 2(1):42-52. doi: 10.12691/ajcea-2-1-5

Abstract

Once the behaviour of reinforced concrete moment resisting frame structures is investigated, it is concluded that the performance of beam column connections is not satisfactory. In order to understand the complex mechanisms and satisfactory behaviour of beam column connections, lots of investigations have been done. The most critical zone in reinforced concrete moment resisting frames would be the beam column connection. The behaviour of beam column connection once it is subjected to large forces during earthquakes has a great impact on the response of the structure. The shear failure has a brittle nature which is not a desirable structural performance during earthquakes. Two new types of shear reinforcements design are introduced in this study for the purpose of reaching a higher performance and material capacity for the connection and hence, the structure. These two shear reinforcement designs working simultaneously with other reinforcement systems and concrete have a better performance compared to that of conventional methods. The first specimen is made according to conventional method of design as control specimens in conformance with Euro code EC2 & EC8. The second specimen introduces a continued shear resistance system against discontinued conventional shear resistance system (stirrups) which is called “Single Square Spring Shear Resistance System” (SSSSRS). The third specimen possesses two continued square spring systems twisting together and making a parallel system called “Double Square Spring Shear Resistance System” (DSSSRS). A comparison was made between the performances of the improved shear reinforcement systems of beam-column connections against the control specimens. It was concluded that a lower deflection along with higher energy absorption was achieved for “Single Square Spring Shear Resistance System” (SSSSRS) and “Double Square Spring Shear Resistance System” (DSSSRS) compared to control specimens.

Keywords:
beam-column connection continued system Single Square Spring Shear Resistance System Double Square Spring Shear Resistance System moment resisting frame

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References:

[1]  BinduK.R., Jaya K.P., 2008. Performance of Exterior Beam Column Joints with Cross Inclined Bars under Seismic Type Loading. Journal of engineering and applied science. vol. 7, pp 591-597.
 
[2]  AppaRoa G.,Mahajan.M, Gangaram M., 2008. Performance of none seismically Designed RC Beam Column Joints Strengthen by Various Schemes Subjected to Seismic Loads. Journal of structural engineering, vol. 35, pp 52-58.
 
[3]  Devados Menon, Pradip Sarkar, Rajesh Agrawal, 2007, Design of RC Beam Column Joints Under Seismic Loading - A Review, Journal of structural engineering, vol. 33, pp 449-457.
 
[4]  Jamal Shannag. M., Nabeela Abu,2005, Lateral Load Response of High Performance Fibre Reinforced Concrete Beam Column Joints, Journal of construction and building materials, vol. 19, pp 500-508.
 
[5]  Willam,K. J. and Warnke, E. P. (1975), “Constitutive models for the triaxial behavior of concrete”, Proceedings of the International Assoc. for Bridge and Structural Engineering, vol. 19, pp. 1-30.
 
[6]  Tavarez, F.A., (2001), “Simulation of Behavior of Composite Grid Reinforced Concrete Beams Using Explicit Finite Element Methods,” Master’s Thesis, University of Wisconsin-Madison, Madison, Wisconsin.
 
[7]  Kachlakev, D.; Miller, T.; Yim, S., May, 2001, “Finite Element Modeling of Reinforced Concrete Structures Strengthened With FRP Laminates”, California Polytechnic State University, San Lius Obispo, CA and Oregon State University, Corvallis, OR for Oregon Department of Transportation, May.
 
[8]  A.G.Tsonos, et.al., "Seismic resistance of Type 2 Exterior Beam column joints reinforced with inclined bars" The ACI structural Journal, Title No. 89-S1. 1992.
 
[9]  Park, R and Paulay.T., "Behaviour of Reinforced Concrete Beam-Column Joints Under Cyclic Loading", Proceedings Fifth World Conference on Earthquake Engineering, Rome, Paper 88, pp. 10, 1973.
 
[10]  Paulay, T., Park, R. and Birss, G.R., "Elastic Beam-Column Joints for Ductile Frames, Proceedings 7th World Confe-rence on Earthquake Engineering, Istanbul, Vol. 6, pp. 331-338, 1980.
 
[11]  Thirugnanam.G.S., 2001, "Ductile behavior of SIFCON Structural member" Journals of Structural engineering, Vo-lume 28, No.1, pp 27-32, 2001.
 
[12]  Wallace, et.al., 1998, "Use of Headed Reinforcement in Beam-Column Joints Subjected to Earthquake Loads" ACI Structural Journal,1998,Vol. 95 pp. 590-602, 1998.
 
[13]  A.Murugesan et.al., "Ductile Behavior of Steel Fiber Rein-forced Concrete beam-column joints subjected to Cyclic loading", National Conference on Advances and Innovations in civil Engineering, MepcoSchlenk Engineering Col-lege, Sivakasi, pp. 27-33, 2009.
 
[14]  Bonacci J, PantazoupoulouS., "Parametric investigation of joint mechanics". ACI Struct J Vol. 90, no. 1, pp. 61-71, 1993.
 
[15]  Lakshmi G.A, Anjan Dutta, Deb S.K Grim, R.E., 2008. Numerical Study of Strengthening of Beam Column Joints under Cyclic Excitation Using FRP Composites, Journal of structural engineering, vol. 35, pp 59-65.