|
Experimental And Numerical Investigation Of The Behavior Of Castellated Steel Beam-Columns
[Full Text]
AUTHOR(S)
Anwar Badawy Badawy Abu-Sena, Mohamed Wahied Fares, Hanan Hussien El-Tobgy
KEYWORDS
Castellated steel beam-columns, Castellated steel beams, castellated steel columns, FEM modeling, flexural buckling, lateral torsional buckling, Web opening.
ABSTRACT
Experimental investigation has been performed on twelve short and long castellated beam-column elements. The castellation process effectively increases the section resistance because of increasing the depth of the section without any additional weight. By increasing the depth of the beam, major axis bending resistance and stiffness are improved as the major axis moment of inertia (Ix) and the section modulus (Sx) are increased. It has been noticed that, researches that considered castellated elements subjected to axial and bending moment are limited compared to those considered elements subjected to bending moment only. In this research castellated beam-columns are studied under different load eccentricity to investigate the effect of castellation on beam-column strength. Behavior and strength of castellated beam-column are also investigated using the finite element analysis utilizing ANSYS software. The finite element results are found to be in a good agreement with their experimental counterparts.
REFERENCES
[1] A. Mohebkhah and H. Showkati, "Bracing requirements for inelastic castellated beams," Journal of Constructional Steel Research, vol. 61, no. 10, pp. 1373-1386, 2005.
[2] D. Nethercot and D. Kerdal, "Lateral-torsional buckling of castellated beams," 1982.
[3] E. Ellobody, "Nonlinear analysis of cellular steel beams under combined buckling modes," Thin-walled structures, vol. 52, pp. 66-79, 2012.
[4] E. Ellobody, "Interaction of buckling modes in castellated steel beams," Journal of constructional steel research, vol. 67, no. 5, pp. 814-825, 2011.
[5] A. B. B. Abu-Sena, M. S. A.-D. Soliman, and O. N. A. Abdel-Nabi, "Behavior and resistance of beam-column structural elements," Journal of Constructional Steel Research, vol. 71, pp. 171-181, 2012.
[6] W.-b. Yuan, B. Kim, and L.-y. Li, "Buckling of axially loaded castellated steel columns," Journal of Constructional Steel Research, vol. 92, pp. 40-45, 2014.
[7] P. Kumbhar and A. Jamadar, "Optimization of opening size for castellated beam with sinusoidal openings," Iran University of Science & Technology, vol. 5, no. 3, pp. 301-313, 2015.
[8] S. Cheng, "Shear effect on buckling of cellular columns subjected to axially compressed load," Thin-Walled Structures, vol. 98, pp. 416-420, 2016.
[9] A. S. Shaikh and P. B. Autade, "Structural Analysis and Design of Castellated Beam in Cantilever Action," Int. Res. J. Eng. Technol, vol. 3, no. 8, pp. 163-170, 2016.
[10] D. Sonck and J. Belis, "Weak-axis flexural buckling of cellular and castellated columns," Journal of Constructional Steel Research, vol. 124, pp. 91-100, 2016.
[11] P. Wang, K. Guo, M. Liu, and L. Zhang, "Shear buckling strengths of web-posts in a castellated steel beam with hexagonal web openings," Journal of Constructional Steel Research, vol. 121, pp. 173-184, 2016.
[12] W.-b. Yuan, N.-t. Yu, Z.-s. Bao, and L.-p. Wu, "Deflection of castellated beams subjected to uniformly distributed transverse loading," International Journal of Steel Structures, vol. 16, no. 3, pp. 813-821, 2016.
[13] S. Elaiwi, B. Kim, and L.-Y. Li, "Bending analysis of castellated beams," 2018.
[14] S. S. Elaiwi, B. Kim, and L.-y. Li, "Linear and nonlinear buckling analysis of castellated beams," Int. J. Struct. Civ. Eng. Res., vol. 8, no. 2, 2019.
[15] S. M. Hadeed and A. J. H. Alshimmeri, "Comparative Study of Structural Behaviour for Rolled and Castellated Steel Beams with Different Strengthening Techniques," Civil Engineering Journal, vol. 5, no. 6, pp. 1384-1394, 2019.
[16] M. Liu, M. Liang, Q. Ma, P. Wang, and C. Ma, "Web-post buckling of bolted castellated steel beam with octagonal web openings," Journal of Constructional Steel Research, vol. 164, p. 105794, 2020.
[17] ANSYS verification manual. Release 12. United States Inc; 2009.
|
