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Assessing the Load-Carrying Capacity of Composite Castellated Beams by Finite Element Method | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقالات آماده انتشار، اصلاح شده برای چاپ، انتشار آنلاین از تاریخ 11 دی 1404 اصل مقاله (1.98 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2025.34586.2126 | ||
| نویسندگان | ||
| Mohammad Sadeghi1؛ Ehsan Dehghani* 2؛ Mohammad Ali Fathali3 | ||
| 1M.Sc. Student, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, Iran | ||
| 2Associate Professor, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, Iran | ||
| 3Assistant Professor, Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, Iran | ||
| تاریخ دریافت: 06 تیر 1403، تاریخ بازنگری: 08 آذر 1403، تاریخ پذیرش: 26 دی 1403 | ||
| چکیده | ||
| The utilization of composite castellated beams in structures is common due to the increased bending strength and stiffness of the beam. However, the presence of openings in castellated beams reduces their shear strength. The increased bending strength allows these beams to be used over longer spans; however, the reduced shear strength makes shear force effects more pronounced in such beams. In this study, a comparative analysis of the behaviors of composite beams with castellated and solid-web has been conducted using finite element method. Nine composite castellated beams and nine solid-web composite beams, both with equal heights and cross-sectional areas, were modeled based on castellated configurations. The AISC Design Guide 31 (DG31) provides a method for calculating the ultimate bending capacity of composite castellated beams but neglects the contribution of the upper T-shaped section of the castellated beam. In this study, the focus is on innovatively comparing the load-carrying capacity of composite castellated beams with the AISC DG31 results, highlighting how finite element analysis reveals higher capacities than those predicted by DG31 by 17% to 31% across specimens. It is observed that the load-carrying capacity of castellated specimens is 2% to 5% lower than that of specimens with solid-webs. This difference may increase up to 22% with local failure in the web-post if the first openings of the beam are placed too close to the supports. Notably, the research demonstrates that the web openings in castellated beams have a minor effect on load-carrying capacity, suggesting that despite reduced shear strength, these openings do not significantly impact the overall capacity, particularly when placed thoughtfully in structural design. | ||
| کلیدواژه‌ها | ||
| Composite castellated beam؛ Finite element analysis؛ Alternating plasticity؛ Load-carrying capacity؛ Vierendeel mechanism؛ Load-displacement diagram | ||
| مراجع | ||
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[1] Samadhan G. Morkhade, Laxmikant M. Gupta. Behavior of Castellated Steel Beams: State of the Art Review. Electron J Struct Eng 2019;19:39–48. https://doi.org/10.56748/ejse.19234.
[2] Altifillisch MD, Cooke BR, Toprac AA. An investigation of open web expanded beams. Weld Res 1957;22.
[3] Gardner NJ. An investigation into the deflection behavior of castellated beams. Trans Eng Inst Canada 1969;9:56.
[4] Gibson JE, Jenkins WM. An investigation of the stresses and deflections in castellated beams. Struct Eng 1957;35:467–79.
[5] Kerdal D, Nethercot DA. Failure modes for castellated beams. J Constr Steel Res 1984;4:295–315.
[6] Redwood R, Cho SH. Design of steel and composite beams with web openings. J Constr Steel Res 1993;25:23–41.
[7] Eurocode 4: Design of composite steel and concrete structures - Part 1-1: General rules and rules for buildings 2004;EN 1994-1-.
[8] Chung K., Lawson R. Simplified design of composite beams with large web openings to Eurocode 4. J Constr Steel Res 2001;57:135–64. https://doi.org/10.1016/S0143-974X(00)00011-0.
[9] Wang AJ, Chung KF. Advanced finite element modelling of perforated composite beams with flexible shear connectors. Eng Struct 2008;30:2724–38. https://doi.org/10.1016/j.engstruct.2008.03.001.
[10] Yang Q, Li B, Yang N. A seismic behaviors of steel moment resisting frames with opening in beam web. J Constr Steel Res 2009;65:1323–36. https://doi.org/10.1016/j.jcsr.2009.01.007.
[11] Sakr MA, Sakla SSS. Long-term deflection of cracked composite beams with nonlinear partial shear interaction: I - Finite element modeling. J Constr Steel Res 2008;64:1446–55. https://doi.org/10.1016/j.jcsr.2008.01.003.
[12] Tahmasebinia F, Ranzi G. Three-Dimensional FE Modelling of Simply-Supported and Continuous Composite Steel-Concrete Beams. Procedia Eng 2011;14:434–41. https://doi.org/10.1016/j.proeng.2011.07.054.
[13] Chen T, Gu X, Li H. Behavior of steel-concrete composite cantilever beams with web openings under negative moment. Int J Steel Struct 2011;11:39–49. https://doi.org/10.1007/S13296-011-1004-8.
[14] Erdal F, Saka MP. Ultimate load carrying capacity of optimally designed steel cellular beams. J Constr Steel Res 2013;80:355–68. https://doi.org/10.1016/j.jcsr.2012.10.007.
[15] Nseir J, Lo M, Sonck D, Somja H, Vassart O, Boissonnade N. Lateral torsional buckling of cellular steel beams. Proc. Annu. Stab. Conf. Struct. Stab. Res. Counc., 2012, p. 18–21.
[16] Lawson RM, Saverirajan AHA. Simplified elasto-plastic analysis of composite beams and cellular beams to Eurocode 4. J Constr Steel Res 2011;67:1426–34. https://doi.org/10.1016/j.jcsr.2011.03.016.
[17] Gizejowski MA, Salah WA. Numerical Modeling of Composite Castellated Beams. Compos. Constr. Steel Concr. VI, Reston, VA: American Society of Civil Engineers; 2011, p. 554–65. https://doi.org/10.1061/41142(396)45.
[18] Sweedan AMI. Elastic lateral stability of I-shaped cellular steel beams. J Constr Steel Res 2011;67:151–63. https://doi.org/10.1016/j.jcsr.2010.08.009.
[19] E.S.Ismail R, Fahmy AS, M. Tawfik N. Ultimate Behavior of Composite Castellated Beams under Vertical Loads. Int J Comput Appl 2014;108:40–6. https://doi.org/10.5120/18911-0214.
[20] Al-Dafafea T, Durif S, Bouchaïr A, Fournely E. Experimental study of beams with stiffened large web openings. J Constr Steel Res 2019;154:149–60. https://doi.org/10.1016/j.jcsr.2018.11.026.
[21] Du H, Hu X, Shi D, Fang B. Effect of reinforcement on the strength of the web opening in steel-concrete composite beam. Eng Struct 2021;235:112038. https://doi.org/10.1016/j.engstruct.2021.112038.
[22] Akrami V, Adili A, Shakeri K, Shahbazi N. An Investigation on the Cyclic Behavior of I-Shaped Beam to Circular Column Moment Connections with Channel Link. Civ Infrastruct Res 2023;9:141–61. https://doi.org/10.22091/cer.2023.9497.1485.
[23] Mali SS, Kumbhar PD. Comparative study on behaviour of castellated beams with diamond- and hexagonal-shaped openings using CFRP stiffeners. Asian J Civ Eng 2024;25:939–52. https://doi.org/10.1007/s42107-023-00823-x.
[24] Patil SS, Kumbhar PD, Kurlapkar RR. Comparative study on behavior of castellated beams of different shaped openings provided with mild steel and FRP stiffeners. Asian J Civ Eng 2024;25:1659–70. https://doi.org/10.1007/s42107-023-00869-x.
[25] Jadhav SD, Kumbhar PD. Non-linear behavior of castellated beams consisting hexagonal and diamond openings using CFRP stiffeners. Asian J Civ Eng 2024;25:4713–24. https://doi.org/10.1007/s42107-024-01075-z.
[26] Kumbhar PD, Jamadar AM. Comparative study on load carrying capacities of castellated beams provided with mild steel and CFRP stiffeners. Mater Today Proc 2023. https://doi.org/10.1016/j.matpr.2023.03.391.
[27] Fares S, Coulson J, Dinehart D. Castellated and cellular beam design. Am Inst Steel Constr 2016.
[28] Hafezolghorani M, Hejazi F, Vaghei R, Jaafar MS Bin, Karimzade K. Simplified Damage Plasticity Model for Concrete. Struct Eng Int 2017;27:68–78. https://doi.org/10.2749/101686616X1081.
[29] Committee A. Building code requirements for structural concrete (ACI 318-05) and commentary (ACI 318R-05). Am Concr Institute, Farmingt Hills, Mich 2019.
[30] Nie J-G, Tian C-Y, Cai CS. Effective width of steel–concrete composite beam at ultimate strength state. Eng Struct 2008;30:1396–407. https://doi.org/10.1016/j.engstruct.2007.07.027.
[31] Construction AI of S. Specification for structural steel buildings. ANSI/AISC 2005;36010. | ||
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