Effect of Hollowing Ratio on the Behavior of Hollow Self-Compacting Reinforced Concrete Slender Column Under Eccentric Loading

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    In this research the behavior of reinforced concrete slender columns with longitudinal hole under axial compression load and uniaxial bending is investigated. The paper includes testing of ten slender columns with dimensions (150 150 1300 mm). The investigation deals with the effect of using different diameters of  column hole on the values of the load carrying capacity and cracking loads, mid-height lateral deflection and longitudinal shortening of the columns. Five diameters for the column holes were considered (0, 25.4, 38.1, 50.8,  and 76.2)mm. Test results have showed that when the holes were located at the center of the column cross-section and the column was loaded with high load eccentricity, the effect of hollowing ratio on load capacity is insignificant. For hollowing ratios used in this study (0%, 2.3% ,5.1%, 9% and 20.3%), the ultimate load is decreased by (0%, 0.28%, 1.03%, 3.28% and 6.48%) respectively. The effect of hollowing ratio on columns  loaded with small eccentricity of 50mm (e/h=.33)  is greater than the effect of hollow ratio of columns with 150 mm eccentricity(e/h=1.0) which reduces the load capacity  for the columns by (0.00%, 0.66%, 2.65%, 4.97% and 11.26%) for hollowing ratios (0%, 2.3%, 5.1%, 9% and 20.3%) respectively.

     

     

  • Keywords


    long column; self-compact concrete; slender column; eccentricity; hole section

  • References


      [1] Bakhteri, J. and Iskandar, S. A.," Experimental Study of Reinforced Concrete Columns Concealing Rain Water Pipe" Jurnal Teknologi, Vol. 43(B), December 2005, pp. 13-26.

      [2] Son, K. S.; Pilakoutas, K. and Neocleous, K.," Behaviour of Concrete Columns with Drilled Holes" Magazine of Concrete Research, Vol. 58, No. 7, September 2006, pp. 411-419.

      [3] Lignola, G. P.; Porta, A.; Manfredi, G. and Cosenza, E., "Experimental Performance of RC Hollow Columns Confined with CFRP", Journal of Composites for Construction, ASCE, Vol. 11, No. 1, January-February 2007, pp. 42-49.

      [4] Galano, L. and Vignoli, A.," Strength and Ductility of HSC and SCC Slender Columns Subjected to Short-Term Eccentric Load", ACI Structural Journal, Vol. 105, No. 3, May- June 2008, pp. 259-269.

      [5] Yazici, V. and Hadi, M. N. S.," Axial Load-Bending Moment Diagram of Carbon FRP Wrapped Hollow Core Reinforced Concrete Columns" Journal of Composites for Construction, ASCE, Vol. 13, No. 4, August 2009, pp. 262-268.

      [6] Campione G., Fossetti, M.,Papia M., " Behavior Fiber –Reinforced Concrete Columns under Eccentrically Compressive Load" ACI Structural Journal, Vol.107, No. 3, May –June 2010, pp. 272-280.

      [7] Müller, C.; Empelmann, M.; Lieb, H.; and Hude, F., “Ultra-High Performance Spun Concrete Columns with High-Strength Reinforcement,” Proceedings of the 3P rd P International Symposium on UHPC and Nanotechnology for High Performance Construction Materials, Kassel, Germany, March 7-9, pp. 733-740, 2015

      [8] Fadhil "Experimental Investigation of Hollow Square Reactive Powder Concrete Columns Filled with Normal Concrete " M.Sc. Thesis, University of Technology, 2017, pp. 144.

      [9] EFNARC: European Federation Dedicated to Specialist Construction Chemicals and Concrete Systems, 2002,"Specifications and Guidelines for Self-Compacting

      [10] Concrete", Association House, 99 West Street, Farnham, Surrey, U.K, pp.32.


 

View

Download

Article ID: 26141
 
DOI: 10.14419/ijet.v7i4.20.26141




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.