PREDICTION OF CONFINED COMPRESSIVE STRENGTH OF SQUARE CONCRETE COLUMNS BY ARTIFICIAL NEURAL NETWORKS

Yıl 2012, Cilt: 4 Sayı: 3, 17 - 35, 01.09.2012

Ertekin Öztekin

Öz

This paper presents the application of artificial neural networks (ANN) for prediction of confined compressive strength of square concrete columns. Experimental data of 252 normal and high strength square concrete column were collected from the literature to develop an ANN model with input parameters consisting of yield strengths, numbers and diameters of longitudinal and transverse reinforcements, characteristic concrete strength, concrete cover thickness, specimen dimension, transverse reinforcement spacing and six different transverse reinforcement configurations. Confined compressive strength predictions of square concrete columns by ANN were compared to some analytical models and were found very promising

Anahtar Kelimeler

Artificial neural network (ANN), confined concrete, confined concrete strength, compressive strength, concrete column

Kaynakça

• Sheikh, S. A., and Uzumeri, S. M., Analytical Model for Concrete Confinement in Tied Columns Journal of the Structural Division, 108 (1982) 2703-2722. [2].Soliman MTM and Yu,C.W., The Flexural Stress–Strain Relationship of Concrete Confined by Rectangular Transverse Reinforcement. Mag. Concr. Res., 19 (1967) 223– 238. [3].Sargin M. Stress–Strain Relationships for Concrete and the Analysis of Structural Concrete Sections. Solid Mechanics Division, Study No: 4, University of Waterloo, 1971. [4].Nagashima, T., Sugano S., Kimura H. and Ichikawa, A., Monotonic Axial Compression Test on Ultra-High-Strength Concrete tied Columns, Proc. of 10th World Conf. on Earthquake Engineering, 5 (1992) 2983-2988. [5].Yong, Y.K., Nour, M.G. and Nawy, E.G., Behavior of Laterally Confined High-Strength Concrete Under Axial Loads, Journal of Structural Engineering, (1988) 332-351 [6].Mugurama H, Watanabe F, Iwashimizu T, Mitsueda R Ductility improvement of highstrength concrete by lateral confinement. Trans. of Japan Concrete Institute, 5 (1983) 403–410. [7].Fafitis A, Shah S P, Predictions Of Ultimate Behavior Of Confined Columns Subjected To Large Deformations J. Am. Concret. Inst., 82 (1985) 423–433. [8].Kappos A.J., Chryssanthopoulos, M.K., Dymmiotis C., Uncertainty Analysis of Strength and Ductility of Confined Reinforced Concrete Members, Engineering Structures, 21 (1999) 95–208. [9].Mander, J.B., Priestley, M.J.N. and Park, R., Theoretical Stress Strain Model for Confined Concrete, ASCE Structural Journal, 114 (1988) 1804-1826. [10]. Hong, K.N., Han, S.H. and Yi, S.T., High-Strength Concrete Columns Confined By Low-Volumetric-Ratio Lateral Ties, Engineering Structures, 28 (2006) 1346–1353. [11]. Suzuki, M., Akiyama, M., Hong, K.N., Cameron, I.D. and Wang, W.L., Stress-Strain Model Of High-Strength Concrete Confined By Rectangular Ties, 13th World Conference on Earthquake Engineering, Paper No: 3330, Vancouer, B.C. Canada, August 2004. [12]. Song, H.W., Choi, D.H., Byun, K.J. and Maekawa, K., Analyses of Concrete Columns Confined with Lateral Reinforcements, Annual Conference of JCI, 20 (1998) 91-96. [13]. K. Sakai, S. A. Sheikh, Y. Kakuta and T. Ohta: Confinement by Rectilinear Ties in Reinforced Concrete Columns, Proceedings of Pacific Concrete Conference, Auckland, New Zealand, 1988. [14]. Cusson D. and Paultre, P., High-Strenght Concrete Columns Confined by Rectangular Ties, Journal of Structural Engineering, 120 (1994) 783-804.
• Cusson D. and Paultre, P., Stress-Strain Model for Confined High Strength Concrete, Journal of Structural Engineering, 121 (1995) 468-477. [16]. Junior, H.C.L, Giongo, J.S., Steel-Fibre High-Strength Concrete Prisms Confined by Rectangular Ties Under Concentric Compression, Materials and Structures, 37 (2004) 689-697. [17]. Braga F, Laterza, M., A New Approach to the Confinement of R/C Columns 11th European Conference On Earthquake Engineering, Balkema, Rotterdam, 1998. [18]. Assa B., Nishiyama, M. and Watanabe F., New Approach for Modeling Confined Concrete, Journal of Structural Engineering, 127 (2001) 751-757. [19]. Chung, H.S., Yang, K.H, Lee, Y.H, and Eun, H.C, Strength and Ductility of Laterally Confined Concrete Columns, Can. J. Civ. Eng., 29 (2002) 820–830. [20]. Bousselam, B. and Chikh, N., Development of a Confined Model for Rectangular Ordinary Reinforced Concrete Columns, Materials and Structures, 40 (2006) 605–613. [21]. Moehle, J.P., ASCE, A.M., and Cavannagh, T., Confinement Effectiveness of Crossties in RC, Journal of Structural Engineering, 111 (1985) 2105-2120. [22]. Abdel-Halim M.A.H., and Abu-Lebdeh, T.M., Analytical Study For Concrete Confinement in Tied Columns, Journal of Structural Engineering, 115 (1989) 28102828. [23]. Saatcioglu, M., Razvi, S. R., Strength and Ductility of Confined Concrete, Journal of Structural Engineering, 118 (1992) 1590-1607. [24]. Sharma, U.K., Bhargava, P. and Kauskik, S.K., Journal of Advanced Concrete Technology, 3 (2005) 267-281. [25]. Al Shaikh, A., Stress-Strain Relationship for Concrete confined by Rectilinear Reinforcement: A Stiffness Degradation Approach, J.King Saud Univ. Eng. Sci(2), 6 (1993) 149-166. [26]. Oreta A.W.C. and Kawashima K., Neural Network Modeling of Confined Compressive Strength and Strain of Circular Concrete Columns, Journal of Structural Engineering, 129, (2003) 554-561. [27]. Cevik, A. And, Güzelbey I.H, Neural Network Modeling Of Strength Enhancement for Cfrp Confined Concrete Cylinders, Building and Environment, 43 (2008) 751–763. [28]. Caglar, N., Neural Network Based Approach for Determining the Shear Strength of Circular Reinforced Concrete Columns, Construction and Building Materials, 23 (2009) 3225–3232.
• Noorzaei, J., Hakim, S.J.S. , Jaafar, M.S., and Thanoon W.A.M., Development of Artificial Neural Networks for Predicting Concrete Compressive Strength, International Journal of Engineering and Technology, 4 (2007) 141-153.
• Tang, C.W., Chen, H.J., and Yen, T., Modeling Confinement Efficiency of Reinforced Concrete Columns with Rectilinear Transverse Steel Using Artificial Neural Networks, J. Structural. Engineering. 29 (2003) 775-783.
• Mo Y.L., Hung H.Y. and Zhong J., Investigation of Stress-Strain Relationship of Confined Concrete in Hollow Bridge Columns Using Neural Networks, Journal of Testing and Evaluation, 330-339.
• Lee, S.C., Prediction of Concrete Strength Using Artificial Neural Networks, Engineering Structures, 25 (2003) 849-857.
• Yeh, C., Modeling of Strength of High Performance Concrete Using Artificial Neural Networks, Cement and Concrete Research, 28 (1998) 1797-1808.
• Ni Hong-Guang, N.,Ji-Zong W., Prediction of compressive strength of concrete by neural Networks, Cement and Concrete Research, 30 (2000) 1245-1250.
• http://www.memorydr.com/images/alz13.jpg, 01.02.2010. 35
• Chung, H.S., Yang, K.Y., Lee, Y.H. and Eun, H.C., Stress–Strain Curve of Laterally Confined Concrete, Engineering Structures, 24 (2002) 1153–1163.
• Razvi S., Confinement of Normal and High Strength Concrete Columns, Philosophy Thesis, University of Ottawa, Ottawa, Canada, June1995.
• Sheikh, S.A., and Uzumeri, S.M., “Strength and Ductility of Tied Concrete Columns, Journal of Structural Engineering, ASCE, 106 (1980) 1079-1102.
• Sugano, S., Kimura, H., Shirai, K., Study of New RC Structures Using Ultra-HighStrength Fiber-Reinforced Concrete(UFC)-The Challenge of Applying 200 MPa UFC to Earth-quake Resistant Building Structures, Journal of Advanced Concrete Technology, 5 (2007) 133-147.
• Bhowmick R., Sharma U., and Bhargava P., Numerical Simulation of Confined Concrete Columns and a Parametric Study, Asian Journal Of Civil Engineering (Building And Housing), 7 (2006) 269-286.
• Li B., Strength and Ductility of Reinforced Concrete Members and Frames Constructed Using High Strength Concrete, Research Report No. 94-5 University of Canterbury, Christchurch, New Zealand, p.389, May1994.