Comparative Study of Structural Behaviour for Rolled and Castellated Steel Beams with Different Strengthening Techniques
Abstract
Currently, the castellated steel beams are used widely because of their useful structural applications and serviceable performance due to their good significant properties such as light weight, facility in construction, materials economize and strength. The castellated steel beam fabricated from its origin solid beam (I-beam) by cutting its web in a zigzag path and then re-joined the two halve by welding so the height of the castellated beam expanded about 50%. The aim of this paper is to study the effect of castellation with and without strengthening on the structural behaviour of castellated beams and compare the results with the origin solid steel beam. Three castellated beams with deferent configuration in addition to solid beam subjected to two equal point loads at mid third of span with simple support condition were analysed numerically using finite element analysis by Abaqus software virgin (6.14.5) .The results show that the load carrying capacity values of castellated steel beams that represent (second, third& fourth) models were increased by (39.11,105.95&124.77) % respectively compared with origin solid beam due to increase beams stiffness after castellation and strengthening process, while mid-span deflection values at service load were decreased by (36.36,9.10&27.27) % respectively comparing with the origin solid steel beam due to increasing section dimensions and stiffness after castellation process and using strengthening technique respectively. Also it was seen that the maximum ultimate moment and ductility were observed in the fourth model that strengthened by high strength concrete and lacing reinforcement so they increased by 124.79% and 165.65% respectively as compare to reference beam, while the third model that strengthened by high strength concrete was stiffer than other beams.
Keywords
References
American Institute of steel construction, Inc. (AISC). “Castellated and cellular Beam Design”, Steel Design Guide-31, 14th Edition, 2016.
Ahmad, Samer, Adnan Masri, and Zaher Abou Saleh. “Analytical and Experimental Investigation on the Flexural Behavior of Partially Encased Composite Beams.” Alexandria Engineering Journal 57, no. 3 (September 2018): 1693–1712. doi:10.1016/j.aej.2017.03.035.
Hallawi, Ali Faiq, and Ali Hussein Ali Al-Ahmed. “Enhancing the Behavior of One-Way Reinforced Concrete Slabs by Using Laced Reinforcement.” Civil Engineering Journal 5, no. 3 (March 19, 2019): 718. doi:10.28991/cej-2019-03091282.
Hayder w. AL-Thabhawee, “Experimental Study of Effect of Hexagonal Holes Dimensions on Ultimate Strength of castellated Steel Beam”, Kufa Journal of Engineering. Vol. 8. No. 1, January 2017, p.p. 97-107.
E.S. Ismail, R., A.S. Fahmy, and N. M. Tawfik. “Ultimate Behavior of Composite Castellated Beams under Vertical Loads.” International Journal of Computer Applications 108, no. 5 (December 18, 2014): 40–46. doi:10.5120/18911-0214.
Budi, Listiyono, Sukamta, and Windu Partono. “Optimization Analysis of Size and Distance of Hexagonal Hole in Castellated Steel Beams.” Procedia Engineering 171 (2017): 1092–1099. doi: 10.1016/j.proeng.2017.01.465.
Satyarno, Iman, Djoko Sulistyo, Dina Heldita, and A. Talodaci Corte Real De Oliviera. “Full Height Rectangular Opening Castellated Steel Beam Partially Encased in Reinforced Mortar.” Procedia Engineering 171 (2017): 176–184. doi: 10.1016/j.proeng.2017.01.324.
Frans, Richard, Herman Parung, Achmad Bakri Muhiddin, and Rita Irmawaty. “Finite Element Modelling of Composite Castellated Beam.” Edited by J.-W. Park, H. Ay Lie, H. Hardjasaputra, and P. Thayaalan. MATEC Web of Conferences 138 (2017): 02009. doi:10.1051/matecconf/201713802009.
Morkhade, Samadhan G., Subhan Shaikh, Ajay Kumbhar, Abdulaziz Shaikh, and Rushikesh Tiwari. "Comparative study of ultimate load for castellated and plain webbed beam." International Journal of Civil Engineering and Technology 9, no. 8 (2018): 1466-1476.
Elaiwi, Sahar, Boksun Kim, and Long-Yuan Li. “Bending Analysis of Castellated Beams.” Athens Journal of Τechnology & Engineering 6, no. 1 (February 25, 2019): 1–16. doi:10.30958/ajte.6-1-1.
Kaveh, A., and F. Shokohi. "Application of Grey Wolf Optimizer in design of castellated beams." (2016): 683-700.
Boyed J. P. “Castellated Beam-New Development”, AISC National Engineering Conference, AISC Engineering Journal, Vol. 3, pp. 106-108, 1964.
Harper, C. S. “Design in Steel 4: Castellated & cellular beams”, Port Talbot: British Steel, (1994).
Ellobody, Ehab. “Design Examples of Steel and Steel-Concrete Composite Bridges.” Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges (2014): 221–467. doi:10.1016/b978-0-12-417247-0.00004-1.
DOI: 10.28991/cej-2019-03091339
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