Experimental and Numerical Investigation for R/C Portal Frames Tested Under Uniform Load
-
2018-11-27 https://doi.org/10.14419/ijet.v7i4.19.27995 -
Reinforced Concrete Portal Frames, Self-Compacting concrete, Uniformly Distributed Load, CFRP Sheets. -
Abstract
This paper presents an experimental and numerical investigations for three reinforced self-compacting concrete portal frames tested under uniform load. Control frame was tested without any types of strengthening, while second frame was strengthened with CFRP-sheet with dimensions (75 * 1000) mm at the bottom of beam and with dimensions (75 *700) mm at both joints, (350 mm) extending to the upper surface of the beam and (350 mm) on the outer face of the column. The last frame was cast in two pours tested without strengthening. The experimental tests showed that strengthened frame had stiffness more than control frame and its ultimate load was more than control frame by (19.45 %), while frame with two pours has an ultimate load less than a control frame with (11.26 %), however stiffness seem approximately to the control frame. Deflection for strengthened frame was less than control frame by (4.76%), on the other hand frame with two pours deflection was more than control frame by (4.55 %). A numerical finite element program ultimate load was more than experimental by about (4.28 %).
Â
Â
-
References
[1] ACI 440.2R-08. 2008. “Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures.†ACI Committee 440.2R-08 Report, American Concrete Institute.
[2] Al-Janabi, M. A. Q. and Alwash, N. A. 2003. “Optimal Design of Reinforced Concrete Space Structures Based on Nonlinear Analysis.†M.Sc. Thesis, Civil Department, College of Engineering, University of Babylon, Iraq.
[3] Al-Mishhadani, S. A. and Al-Rubaie, M. F.2009. “A Data Base for Self-Compacting Concrete in Iraq.â€Eng. & Tech. Journal Vol. 27 No. 6. Department of Building and Construction Engineering, University of Technology, Iraq, pp.1203-1220.
[4] Al-Nasrawi, J.T.A., Al-Sarraf, S. Z. and Alwash, N. A.,2008. “Ultimate Strength Capacity of R.C Space Frames Strengthened by FRP.†Ph.D. Thesis, Civil Department, College of Engineering, University of Babylon, Iraq.
[5] Al-Shimmari, I. K. 2006. “Nonlinear Finite Element Analysis of Reinforced Concrete Beam-Column Connection With Interface Element Under Cyclic Loading.†M.Sc. Thesis, Civil Engineering Department, College of Engineering of the University of Babylon, Iraq.
[6] ASTM C39 M-05, “Standard Test Method for Compressive Strength of Cylindrical Concrete Specimensâ€, Annual Book of ASTM Standards, American Society for Testing and Materials, pp.1-7.
[7] ASTM C496, “Standard Test Method for Splitting Tensile Strength for Cylindrical Concrete Specimensâ€, American Society for Testing and Materials, 2004.
[8] ASTM C78-02. 2002. “Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading).†Annual Book of ASTM Standards, American Society for Testing and Materials.
[9] Behrouz Behnam, Pang Jen Lim and Hamid R. Ronagh. 2014. “Plastic hinge relocation in reinforced concrete frames as a method of improving post-earthquake fire resistanceâ€.Research Journal of the Insinuation of Structural Engineers (2): 21–31.doi: 10.1016/j.istruc.2014.12.003
[10] British Standards,1989“Method for Determination of Compressive Strength of Concrete Cubes.â€BS 1881: Part 116.
[11] CengizDundar and IlkerFatih Kara.2007.“Three dimensional analysis of reinforced concrete frames with cracked beam and column elements.†Department of Civil Engineering, Cukurova University, Turkey.
[12] European Federation Dedicated to Specialist Construction Chemicals and Concrete Systems (EFNARC). 2005.“The European Guidelines for Self-Compacting Concrete Specification, Production and Use.â€
[13] Guerra, A. and Kiousis, P. D. 2006. “Design Optimization of Reinforced Concrete Structures†Colorado School of Mines, Division of Engineering, USA.
[14] Iraq Specification No. 45 (1984),“Natural Sources for Gravel that is Used in Concrete and Construction.†Baghdad.
[15] Iraq Specification No. 5 (1984), “Portland Cementâ€, Baghdad.
[16] Marı´a E. Marante, Lorena Sua ´rez, Adriana Quero, Jorge Redondo, Betsy Vera, MaylettUzcategui, Sebastia ´n Delgado, Leandro R. Leo´n, Luis Nu ´n˜ez and Julio Flo ´rez-Lo ´pez. 2005. “Portal of damage: a web-based finite element program for the analysis of framed structures subjected to overloads.†Advances in Engineering software (36): 346 -358.
[17] MihaJukic´, Boštjan Brank and Adnan Ibrahimbegovic. 2014. “Failure Analysis of Reinforced Concrete Frames by Beam Finite Element that Combines Damage, Plasticity and Embedded Discontinuity.†Engineering Structures Journal (75): 507 -527.
[18] Shawkat, Waleed. 2008. “Hybrid Members Employing FRP Skin Reinforcement For Beam and Cladding Wall Applications.†M.Sc. Thesis, Department of Civil Engineering, Queen’s University, Kingston, Ontario, Canada.
[19] Sika, "Sikadur 330-Two Part Epoxy Impregnation Resin ", Technical Data Sheet, Edition 2, 2005.
[20] Sika, " Sika Warp®- 230C Woven carbon fiber fabric for structural strengthening", Technical Data Sheet, 2009.
[21] VikasGohel, Paresh V. Patel and Digesh Joshi. 2013. “Analysis of Frame using Applied Element Method (AEM).†Chemical, Civil and Mechanical Engineering Tracks of 3rd Nirma University International Conference on Engineering (NUiCONE 2012).
[22] Zou, X.K. and Chan, C. M. 2004. “Seismic Drift Performance-Based Design Optimization of Reinforced Concrete Buildings. â€World Conference on Earthquake Engineering, Vancouver, B.C., Canada.
-
Downloads
-
How to Cite
Dheyaa Jaafar Witwit, J., & Abed Al-Ameer Alwash, N. (2018). Experimental and Numerical Investigation for R/C Portal Frames Tested Under Uniform Load. International Journal of Engineering & Technology, 7(4.19), 763-771. https://doi.org/10.14419/ijet.v7i4.19.27995Received date: 2019-02-26
Accepted date: 2019-02-26
Published date: 2018-11-27