Experimental and Analytical Investigation of Castellated Steel Beams with Varying Openings Eccentricity

Morkhade, Samadhan G.; Shirke, Tushar; Mansuke, Ajit; Chavan, Mrunmayi U.; Gupta, Laxmikant M.

doi:10.1007/s40030-021-00516-1

Cited by 11 publications

(4 citation statements)

References 25 publications

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“…Bhosale G.A et al [9], based on the comparison of the shape of the hexagonal, square, and circle openings, the most optimum is the hexagonal opening. Samadhan et al [15], beams with hexagonal openings produce the best capacity from other variations of openings. Fatimah De'nan et al [16], hexagonal openings have the smallest deflection value compared to other variations of openings.…”

Section: Comparison Of Bending Capacity Of Hexagonal Opening Castellated Beams With Circle Openingmentioning

confidence: 99%

Comparison Behavior of Flexural Capacity Castellated Beam of Hexagonal Opening With Circle Opening

Barkiah¹,

Darmawan²

2021

International Journal of Civil Engineering and Technology (Ijciet)

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To increase the flexural capacity of the WF profile, it can be done by modifying the geometry into a castellated beam. Castellated beam has several variations of opening shapes. The author in 2020 has obtained the results of the flexural behavior of hexagonal opening castellated beams, obtained the optimum flexural capacity at 45 0 hexagonal opening angle variations. In this study, the author want to obtain differences in flexural strength produced by hexagonal castellated beam openings with circle openings. ANSYS numerical testing was carried out to obtain the behavior of the castellated beam. The test model made is a castellated beam with circle openings with several variations of S/Do and D/Do parameters. From the results of numerical testing, it is found that the optimum castellated circle opening is S/Do=1.3; D/Do=1.4. With the value of Pyield = 57kN and Pultimate = 84kN. From the results of the castellated beam's flexural capacity, the circle opening is compared with the hexagonal bending capacity. Hexagonal openings get better results than circle openings. Castellated hexagonal apertures get Pyield=61.7kN and Pultimate=95kN. The deformation experienced by castellated circle openings has a value greater than that of hexagonal openings. This shows that the hexagonal opening has a more excellent inertial stiffness value than the circle opening. Because the circle opening has a larger opening area than the hexagonal opening, it causes a smaller inertial stiffness value.

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Section: Comparison Of Bending Capacity Of Hexagonal Opening Castellated Beams With Circle Openingmentioning

confidence: 99%

Comparison Behavior of Flexural Capacity Castellated Beam of Hexagonal Opening With Circle Opening

Barkiah¹,

Darmawan²

2021

International Journal of Civil Engineering and Technology (Ijciet)

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“…Castellated beams have more aesthetic values when the faces of buildings are exposed to nature (9) . For the fabrication of castellated beams, Hot-rolled steel I-section is used (10) . The web is cut laterally with a definite design pattern and then shifted into two halves and re-welded together resulting in an increase in depth.…”

Section: Introductionmentioning

confidence: 99%

Effect of Horizontal Distance of Web Opening on the Ultimate Load Carrying Capacity of Castellated Steel Beams by an Analytical Approach

Mehetre,

Kandekar,

Mate

2024

IJST

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Objectives: The primary objective of this current research is to determine the ideal horizontal spacing for hexagonal web openings and their maximum load-bearing capacity through Finite Element Analysis (FEA). Methods: The ISMB150 was implemented as a cross-sectional profile to fabricate distinct models of castellated beams with heights of 225 mm. The height of the web openings remained constant at 150 mm for the castellated beam model. The entire analysis is being done on ANSYS 19.2. Findings: The analysis has revealed that, for castellated beams with shallower depths, an optimal horizontal spacing of 44.9 mm for the web openings yields an ultimate load-bearing capacity of 144.26 KN. The results of castellated beams are measured in terms of ultimate load-carrying capacity, span-to-deflection ratio, load density, failure location, span-to-beam depth ratio, and the ratio of horizontal distance of opening-to-opening depth. Novelty: This research contributes analytical findings for the ideal horizontal distance of hexagonal web opening through maximum load-bearing capacity. Castellated beams have gained immense popularity within the structural engineering community today due to their visually appealing design featuring a variety of web-opening shapes. The primary objective of this current research is to determine the ideal horizontal spacing for hexagonal web openings and their maximum load-bearing capacity through Finite Element Analysis (FEA). The ISMB150 was implemented as a cross-sectional profile to fabricate distinct models of castellated beams with heights of 225 mm. The height of the web openings remained constant at 150 mm for the castellated beam model. The analysis has revealed that, for castellated beams with shallower depths, an optimal horizontal spacing of 44.9 mm for the web openings yields an ultimate load-bearing capacity of 144.26 KN. The results of castellated beams are measured in terms of ultimate load-carrying capacity, span-to-deflection ratio, load density, failure location, span-to-beam depth ratio, and the ratio of horizontal distance of opening-to-opening depth. This research contributes valuable insights into optimizing the design of castellated beams for enhanced structural performance. Further exploration and validation could provide additional refinements and applications in structural engineering. Keywords: Horizontal distance of web opening, Number of openings, Ultimate load carrying capacity, Failure modes, ANSYS, Castellated beams

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“…(f) The internal void of a CHS provides a combination of high strength with other features, such as fire protection, ventilation, and proper heat transfer ability, which in turn facilitate the placing of electrical wires inside the beams and columns [29]. The effect of the presence of openings in the web of steel beams has been studied experimentally and analytically by Morkhade et al [30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Steel Circular Hollow Section under Bending Loads: Comprehensive Study of Mechanical Performance

et al. 2022

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The present study aimed at evaluating the mechanical performance under bending loads of circular hollow sections of steel. Different bending tests have been carried out by applying two-point loads, to determine and examine the effects of the diameter, the thickness of the section, and the span of the beam on the performance of the steel tube. The effects of square opening and variation in the number of openings on the performance of these sections have also been examined. Ten samples of hollow circular beams of varying thickness (2 mm, 3 mm, and 6 mm), varying diameter (76.2 mm, 101.6 mm, and 219 mm), and varying span (1000 mm, 1500 mm, and 2000 mm) were fabricated and tested for pre-failure and post-failure stages. The dimensions of the reference specimen considered were 3 mm in thickness, 101.6 mm in diameter, and 1500 mm in span. The results have shown that on increasing the section thickness by 200%, ductility and bearing strength were enhanced by 58.04% and 81.75%, respectively. Meanwhile, decreasing the section thickness by 67%, ductility and bearing strength were reduced by 64.86% and 38.87%, respectively. Moreover, on increasing the specimen diameter and on decreasing span, a significant increase in bearing strength and stiffness was observed; however, ductility was reduced. Meanwhile, on increasing the span of the specimen, all the parameters observed, i.e., bearing strength, stiffness, and ductility, decreased. On observing the ultimate strength of each specimen with square opening, the ultimate strength was reduced by 17.88%, 19.71%, and 14.23% for one, two-, and three-square openings, respectively. Moreover, the ductility was significantly reduced by 72.40%, 67.71%, and 60.88% for one, two-, and three-square openings/apertures, respectively, and led to the sudden failure of these specimens. The local buckling failure dominated for specimens having a D/t ratio more than 50 and showed very negligible levels of ovalization of the cross-section. Local buckling failure was observed to be prevented after providing the circular rings in the specimen, since bearing strength increased compared with the specimen without rings.

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Experimental and Analytical Investigation of Castellated Steel Beams with Varying Openings Eccentricity

Cited by 11 publications

References 25 publications

Comparison Behavior of Flexural Capacity Castellated Beam of Hexagonal Opening With Circle Opening

Comparison Behavior of Flexural Capacity Castellated Beam of Hexagonal Opening With Circle Opening

Effect of Horizontal Distance of Web Opening on the Ultimate Load Carrying Capacity of Castellated Steel Beams by an Analytical Approach

Experimental Analysis of Steel Circular Hollow Section under Bending Loads: Comprehensive Study of Mechanical Performance

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