Moment gradient factor for steel I-beams with sinusoidal web openings

Carvalho, Adriano Silva de; Martins, Carlos Humberto; Rossi, Alexandre; Oliveira, Vinicius Moura de; Morkhade, Samadhan G.

doi:10.1016/j.jcsr.2023.107775

Cited by 19 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By maintaining its moment capacity, the plastic design of members is able to develop plastic hinges that rotate until the collapse mechanism absolutely occurs, thus causing a distribution of bending moments. Based on the amount of strain hardening exhibited before local buckling arises, the ultimate bending capacity of a steel section is measured by the flexural over strength section (D'Aniello et al, 2012). In model cases where the actual member section is schematized into an identical ideal section made of two concentrated masses, it can be calculated as the ratio between the stress (f LB ) equivalent to the local buckling arising and the yielding stress (f y ):…”

Section: Bending Test On Beammentioning

confidence: 99%

“…The maximum diameter of a circular opening should not exceed 0.75 times the total height of the beam, as increasing the opening height reduces both shear and moment capacities, making the beam more prone to undergo shear or flexural failure (Lagaros et al , 2008). In addition, the moment gradient factor, C b , is an important parameter to consider in the design of beams subjected to failure by lateral-torsional buckling (de Carvalho et al , 2023).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The nonlinear analysis of tapered steel section with opening due to the effects of bending behavior

De’nan,

Hashim,

Mohamad Razak

2023

WJE

View full text Add to dashboard Cite

Purpose Tapered steel sections are widely used in house building design due to their structural efficiency and aesthetic appearance. Due to the practical usage of web tapering specifications in the metal building industry, fabrication and material expenses are analyzed to achieve geometric and economic productivity. The purpose of this study is to investigate the effectiveness of utilizing web profiles with openings in reducing the weight of steel beams. Design/methodology/approach In this paper, the nonlinear analysis of the bending behavior of a tapered steel section with an opening was studied by finite element analysis. The results were then compared with those of the tapered steel section without an opening in terms of displacement and yield moment. Findings The bending capacity of a tapered steel section was analyzed using finite element analysis. Results showed that the tapered steel section without openings had a higher bending capacity compared to the section with various sizes of web openings. The results also showed that decreasing the number of openings would increase the bending capacity, whereas increasing the size of the opening would decrease it. The difference in the yield moment between the tapered steel section with and without openings was only 15.818%. A total of 60 nonlinear analyses were conducted to investigate the effect of the number and size of web openings, flange thickness and web thickness on the bending behavior. However, this study showed that web opening with octagon shape and 0.6D size of web opening, where D is the depth of section, showed the best section in terms of yield moment and volume reduction compared to other opening size and shape. Originality/value It is also found that tapered steel section has better moment resistance in thicker flange and web. The study is valuable for engineers and designers who work with steel structures and need to optimize the performance of tapered steel sections with web openings.

show abstract

Section: Bending Test On Beammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The nonlinear analysis of tapered steel section with opening due to the effects of bending behavior

De’nan,

Hashim,

Mohamad Razak

2023

WJE

View full text Add to dashboard Cite

show abstract

“…The removal of material from the web leads to the existence of new failure modes, characteristic of these structures, such as web-post buckling and the Vierendeel mechanism (Fig. 2) [2]. However, the effect caused by this manufacturing process on the resistant capacity of these elements in relation to failure due to lateraltorsional buckling is also highlighted.…”

Section: Introductionmentioning

confidence: 99%

Buckling Curve Calibration for Steel I‐beams With Sequential Web Openings Considering Random Initial Imperfections

de Carvalho,

Rossi,

Humberto Martins

2024

ce papers

Self Cite

View full text Add to dashboard Cite

Steel beams with sequential web openings present benefits compared to plain webbed sections, especially higher bending stiffness. However, openings can affect structural behavior, requiring modifications to verification methods. In this study, a new proposal was developed to verify steel profiles with sequential web openings, based on Eurocode 3. The calculation leads to the determination of the reduction in the resistant capacity of the section due to instabilities based on an imperfection factor related to the characteristic process of manufacturing these profiles. For this, an extensive numerical study was carried out, considering random distributions of residual stresses based on experimental data.

show abstract

“…The impact that critical geometric parameters have on steel beams' performance, particularly those with sinusoidal webs, has been comprehensively explored. These studies investigated the intricate relationships between beam geometry, material properties, and structural behavior, laying the groundwork for a deeper understanding of the sinusoidal-web configuration [11][12][13]. The failure modes, shear strength, rigidity, and strain distributions of girders manufactured from steel featuring corrugated webs were the subject of experimental and computational investigations in a study by Wang et al [14].…”

Section: Introductionmentioning

confidence: 99%

Innovative Design Techniques for Sinusoidal-Web Beams: A Reliability-Based Optimization Approach

Cserpes,

Habashneh,

Szép

et al. 2024

Buildings

View full text Add to dashboard Cite

Existing studies often rely on deterministic numerical analyses for structural models. However, test results consistently highlight uncertainties, particularly in variables such as magnitude of the applied load, geometrical dimensions, material randomness, and limited experiential data. As a response, researchers have increasingly turned their attention to probabilistic design models, recognizing their crucial role in accurately predicting structural performance. This study aims to integrate reliability-based analysis into the numerical modeling of sinusoidal-web steel beams. Two sinusoidal-web beams are considered. The web and the flange thicknesses, in addition to the magnitude of the applied load, are treated as random variables with mean values and standard deviations. Notably, the study demonstrates the efficiency of the reliability index as a governing limit in the analysis process. A detailed comparison between deterministic and probabilistic designs of sinusoidal-web beams is conducted, focusing on the impact of introducing the nature of randomness. Therefore, this study’s results deepen our understanding of how uncertainties significantly influence deformations and stresses.

show abstract

Moment gradient factor for steel I-beams with sinusoidal web openings

Cited by 19 publications

References 32 publications

The nonlinear analysis of tapered steel section with opening due to the effects of bending behavior

The nonlinear analysis of tapered steel section with opening due to the effects of bending behavior

Buckling Curve Calibration for Steel I‐beams With Sequential Web Openings Considering Random Initial Imperfections

Innovative Design Techniques for Sinusoidal-Web Beams: A Reliability-Based Optimization Approach

Contact Info

Product

Resources

About