Behavior of Concrete Beam Encasing Castellated Steel Section with Different Opening Size
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Abstract
This research aims to investigate the behavior of castellated steel sections with varying hole sizes enclosed in a concrete beam. Should two different opening size types (depth 140mm and depth 280mm) be used? When we use two types of shear connectors with full and partial interaction, stud connections integrate the steel and concrete parts. This research demonstrates We examined five simply-supported composite beams under two-point loading conditions. We constructed four examples using castellated steel beams and produced one specimen using standard steel beams as a control. We examine the maximum load support capacity. Examined are the specimens of composite beams' deformations. Among the many characteristics assessed are the castellated beam size of the aperture and the whole and partial composite interactions. According to test results, the sample had a 140mm hexagonal hole. The sample experienced an increase in final load percentages of approximately 11.11%. Compared to the sample featuring a 280mm hexagonal opening size, the mid-deflection and horizontal displacement showed a significant increase. The figures indicate a final load of approximately 18.82% and 16.7%, respectively. Full interaction also revealed a higher ultimate load for the sample with the same aperture. When the sample was fitted with a 140mm hexagonal hole, the percentages increased by approximately 6%. Additionally, the percentage of deflection at midspan and the percentage of horizontal displacement decreased by approximately 16.7% and 26.8%, respectively, compared to the sample with a hexagonal opening size of 280 mm.
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References
W.W. Wei, Y. Che, and J.X. Gong, ‘Shear strength prediction for reinforced concrete beams without stirrups’, Mag. Concr. Res., vol. 63, no. 6, pp. 433–440, 2011, DOI: 10.1680/ macr.10.00054.
J. Ochshorn, Structural Elements for Architects and Builders. 2010.
S.Q. Abdulridha and H. Muteb, ‘Structural Behavior of Composite Castellated Steel-Concrete Beams Subjected to Impact Load Structural Behavior of Composite Castellated Steel Concrete Beams Subjected to Impact Load’, no. January 2019, 2018.
A.H.A. Al-zuhairi and A. I. Mansi, ‘Experimental Study of the Behavior of Composite Concrete Castellated’, no. February 2017, pp. 494–500, 2015.
H. M. E. D. Afefy, A. M. Atta, and S. E. D. F. Taher, ‘Behavior of Strengthened Composite Castellated Beams Pre-stressed with External Bars: Experimental Study’, Arab. J. Sci. Eng., vol. 37, no. 6, pp. 1521–1534, 2012.
R.K.T. N and K. Jagadeesan, ‘Experimental Study on Castellated Beam to Enhance the Shear Strength’, vol. 3, no. 16, pp. 3–6, 2015.
V. Senthil, P. Nandhakumar, M. Indrajit, and P. Swathika, ‘Research on Structural Behavior of Concrete Encased Steel Castellated Beam for Different Sections’, no. 6, pp. 61–64, 2019.
ASTM E8/E8M-15a,. "Standard test method for Tension Testing of Metallic Materials, Book of Standards", American Society of Testing and Materials ,West Conshohocken, PA 19428-2959, USA,(2015).
BS 5400-5, "Concrete and composite bridge", British Standard Steel, Part 5 Code of practice for the design of composite bridge.389 Cheswick High Road, London, UK., (2005).
Iraqi Specification (IQS), No.5/ (1984), “Portland Cement”, The Ministry of Planning, Central Organization for Standardization and Quality Control, Baghdad, IRAQ. 1984.
ASTM-C150-17, "Standard Specification for Portland Cement", ASTM International, USA, pp. 1-9, 2017.
Iraqi specification (IQS), No.45/(1984), "Aggregate from Natural Sources for Concrete and Construction", The Ministry of Planning,Central Organization for Standardization and Quality Control.
ASTM C128-15, “Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate”, ASTM International, West Conshohocken, PA, 2015.
B.S:1881: Part 116:1983 "Method for Determination of Compressive Strength Concrete Cube ", British standard institution, (1983).
ASTM 293–79 “Flexural Strength of Concrete (Using Simple Beam with Centre – Point Loading)”, Annual Book of American Society for Testing Concrete and Materials, Philadelphia, Pennsylvania, 2014.
ASTM C496-86, "Splitting Tensile Strength of Cylindrical Concrete Specimens", Annual Book of American Society for Testing Concrete and Materials, Philadelphia, Pennsylvania, 2014.
ASTM C469-02, "Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression”, Annual Book of American Society for Testing Concrete and Materials, Philadelphia, Pennsylvania, 2014.