Collapse of I-section tapered beam-columns in medium-span steel frames: Finite element model validation and parameters influence evaluation

Massaroppi, Ernesto; Zampaolo, Tiago César; Abambres, Miguel; Ribeiro, Tiago

doi:10.1590/1679-78256050

Cited by 3 publications

(3 citation statements)

References 36 publications

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“…First, in the validation of the model shown in Figure 7, the same result was found as in the research conducted by Massaroppi Jr et al [43], in which the smaller meshes ended up coinciding with a close maximum force. Then, the methodology proved to be effective both in determining the critical load of elastic buckling and in estimating the bearing load capacity (Figure 9).…”

Section: Discussionsupporting

confidence: 83%

Influence of Opening Type in Axially Compressed Castellated Columns

et al. 2023

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Recently, castellated columns have been increasingly used in buildings because of their flexibility, easy compatibility and potential savings due to less steel consumption. However, there is a lack of research related to the subject. In view of that, this work evaluates the influence of the opening type and size on the resistant capacity of the column, considering a nonlinear plastic analysis by the finite element method (792 simulations). For this, columns without openings were modeled to validate the methodology proposed. After validation, a nonlinear buckling analysis of castellated columns was performed. In this study, different cut patterns of the beam web are evaluated, as well as residual stresses, material and geometric imperfections, based on a statistical design. The loads obtained by castellated columns and columns without web are compared. Also, the resistance reduction factors associated with global buckling (χ) for castellated profiles are compared to the values proposed by ABNR NBR 8800 (2008). Furthermore, statistically, there are no differences between the opening types evaluated. Finally, in order to contribute to the design of castellated columns, equations based on regression models were found to predict the load capacity of these elements.

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Section: Discussionsupporting

confidence: 83%

Influence of Opening Type in Axially Compressed Castellated Columns

et al. 2023

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“…As a result, many calculation approaches based on non-constant members or employing advanced sectional analyses, even if practical and validated, may take long until explicitly defined in structural standards [452]. This is certainly the case for widely adopting TO in civil and structural engineering and, also, a reason underlying the scarce number of recent publications in TO to specific standards prescriptions.…”

Section: Structural Design Codes Compliancementioning

confidence: 99%

Topology Optimisation in Structural Steel Design for Additive Manufacturing

2021

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Topology Optimisation is a broad concept deemed to encapsulate different processes for computationally determining structural materials optimal layouts. Among such techniques, Discrete Optimisation has a consistent record in Civil and Structural Engineering. In contrast, the Optimisation of Continua recently emerged as a critical asset for fostering the employment of Additive Manufacturing, as one can observe in several other industrial fields. With the purpose of filling the need for a systematic review both on the Topology Optimisation recent applications in structural steel design and on its emerging advances that can be brought from other industrial fields, this article critically analyses scientific publications from the year 2015 to 2020. Over six hundred documents, including Research, Review and Conference articles, added to Research Projects and Patents, attained from different sources were found significant after eligibility verifications and therefore, herein depicted. The discussion focused on Topology Optimisation recent approaches, methods, and fields of application and deepened the analysis of structural steel design and design for Additive Manufacturing. Significant findings can be found in summarising the state-of-the-art in profuse tables, identifying the recent developments and research trends, as well as discussing the path for disseminating Topology Optimisation in steel construction.

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“…Massaroppi Jr. et al [9] presented the collapse of tapered I-beams of large span. The research is presented in the context of steel frames and a finite element model is validated according to the several design parameters in place.…”

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confidence: 99%

7th International Symposium on Solid Mechanics - Special Issue

Tita

Fantuzzi

2020

Lat. Am. j. solids struct.

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This shows the high level of the event in terms of the presentations and the works published in the Procedures of MECSOL 2019. This Special Issue publishes improved and enlarged versions of 10 (ten) articles presented at MECSOL 2019, which covered different topics such as Fatigue and Failure Analyses; Composite Materials and Structures; Elasticity, Plasticity, Damage and Fracture Mechanics: Models, Experiments and Applications; Viscoelasticity and Viscoplasticity: Models, Experiments and Applications; Impact Engineering; Structural Reliability Methods and Reliability-Based Design Optimization; Optimization of Materials, Fluids and Structures; Numerical Methods: FEM, XFEM, GFEM, BEM and others methods; Nonlinear Analyses: Buckling, Post-Buckling and Contact Analyses. In other words, this Special Issue is devoted to scientists and engineers, who are investigating recent developments in analysis and state-of-the-art techniques on Solid Mechanics.Lima et al.[1] described an analysis of the dynamic response of coupled soil-pile-foundation systems. This work presents the influence of three issues on the vertical dynamic foundation response. The analysis presented in the article allows an in-depth understanding of the dynamic response of coupled soil-pile-foundation systems.Pellizzer et al.[2] discussed the time-dependent reliability of reinforced concrete considering the boundary element method. Corrosion of reinforcing bars caused by chloride ions is one of the main pathological manifestations. Therefore, the time-variant reliability problem is solved using Monte Carlo simulation with several applications.The exact solution for the buckling problem of cylindrical panels have been presented by Soares et al. [3]. These structures have frames attached to the circular edges. The boundary conditions differ from the classical simply supported ones, often assumed for design purposes, in the sense that the torsion resisted by the frames are also taken into account. Results are reported for valuable benchmarks in future studies.Anisotropic damage propagation has been presented by Petrini et al.[4] using a thermodynamically consistent phase field framework. In particular the present approach is adapted to include the effect of preferential cleavage planes 7th International Symposium on Solid Mechanics -Special Issue V. Tita et al.

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Collapse of I-section tapered beam-columns in medium-span steel frames: Finite element model validation and parameters influence evaluation

Cited by 3 publications

References 36 publications

Influence of Opening Type in Axially Compressed Castellated Columns

Influence of Opening Type in Axially Compressed Castellated Columns

Topology Optimisation in Structural Steel Design for Additive Manufacturing

7th International Symposium on Solid Mechanics - Special Issue

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