A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Comparative study on behaviour of castellated beams with diamond- and hexagonal-shaped openings using CFRP stiffeners
A castellated steel beam (CSB) is a beam that has perforations in its web portion. These perforations result in less material consumption and ultimately the lightweight, economical structures are achievable. As CSBs have openings in their web portion, they are prone to the phenomenon of web post-buckling and stress concentration around the opening edges. To avoid such problems, the use of stiffeners becomes essential in CSBs. Stiffeners not only increase the load-carrying capacity of beams but also minimize deflection. In this paper, analysis of CSBs consisting of diamond and hexagonal-shaped openings provided without and with transverse carbon fiber-reinforced polymer (CFRP) stiffeners is carried out using finite element-based ‘Abaqus’ software considering two-point loading. The software analysis is carried out to determine the load-carrying capacity and deflection of the CSB under consideration. Results of the analysis indicate that load-carrying capacities of CSB having diamond-shaped openings provided without and with transverse CFRP stiffeners are found to be more by 26.9% and 27.9%, respectively, when compared to the corresponding load-carrying capacity values of CSB having hexagonal-shaped openings. Further, the deflections of CSB having diamond-shaped openings provided without and with transverse CFRP stiffeners are found to be reduced by 14.7% and 15.7%, respectively, when compared to the corresponding deflection values of CSB having hexagonal-shaped openings. The study concludes that the CSB having diamond-shaped openings performs better than CSB having hexagonal-shaped openings with or without the use of CFRP stiffeners.
Comparative study on behaviour of castellated beams with diamond- and hexagonal-shaped openings using CFRP stiffeners
A castellated steel beam (CSB) is a beam that has perforations in its web portion. These perforations result in less material consumption and ultimately the lightweight, economical structures are achievable. As CSBs have openings in their web portion, they are prone to the phenomenon of web post-buckling and stress concentration around the opening edges. To avoid such problems, the use of stiffeners becomes essential in CSBs. Stiffeners not only increase the load-carrying capacity of beams but also minimize deflection. In this paper, analysis of CSBs consisting of diamond and hexagonal-shaped openings provided without and with transverse carbon fiber-reinforced polymer (CFRP) stiffeners is carried out using finite element-based ‘Abaqus’ software considering two-point loading. The software analysis is carried out to determine the load-carrying capacity and deflection of the CSB under consideration. Results of the analysis indicate that load-carrying capacities of CSB having diamond-shaped openings provided without and with transverse CFRP stiffeners are found to be more by 26.9% and 27.9%, respectively, when compared to the corresponding load-carrying capacity values of CSB having hexagonal-shaped openings. Further, the deflections of CSB having diamond-shaped openings provided without and with transverse CFRP stiffeners are found to be reduced by 14.7% and 15.7%, respectively, when compared to the corresponding deflection values of CSB having hexagonal-shaped openings. The study concludes that the CSB having diamond-shaped openings performs better than CSB having hexagonal-shaped openings with or without the use of CFRP stiffeners.
Comparative study on behaviour of castellated beams with diamond- and hexagonal-shaped openings using CFRP stiffeners
Asian J Civ Eng
Mali, Suyash S. (author) / Kumbhar, Popat D. (author)
Asian Journal of Civil Engineering ; 25 ; 939-952
2024-01-01
14 pages
Article (Journal)
Electronic Resource
English