Experimental behaviour of stainless steel plate girders under combined bending and shear

Chen, X.W.; Yuan, Hongyong; Real, Esther; Du, Xin; Schafer, B.W.

doi:10.1016/j.jcsr.2019.105900

Cited by 22 publications

(6 citation statements)

References 19 publications

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“…Yet they raise questions regarding the accommodation of installation tolerances without compressing the slip (deformation) precautions [21,49]. This ambiguity underscores the importance of further research in this area; in Typically, inter-module connections are investigated using experimental programmes, and their outcomes are verified using analytical and numerical research [21,38,[55][56][57][58][59][60][61][62][63][64]. The only approaches that can be used to investigate the impact of the interlocking (IMCs) plate thickness are experimental programmers and numerical simulation using the FE methods [65][66][67][68][69].…”

Section: Introductionmentioning

confidence: 99%

Optimising Plate Thickness in Interlocking Inter-Module Connections for Modular Steel Buildings: A Finite Element and Machine Learning Approach

Elsayed,

Mutalib,

Elsayed

et al. 2024

Preprint

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Modular steel buildings (MSBs) interlocking inter-module connections (IMCs) have piqued researchers’ interest. However, the existing literature has not yet studied the optimisation of its plate thicknesses. This paper, therefore, focuses on optimising interlocking (IMCs) plate thickness in (MSBs), leveraging previous experimental and numerical simulation methodologies. Various numerical models for four MSBs interlocking (IMCs) with plate thicknesses (4 mm, 6 mm, 10 mm, and 12 mm) were developed under compression loading conditions. The study’s novelty lay in its comprehensive parametric analysis, which evaluated the slip phenomenon in (MSBs) connections and introduced a slip prediction model validated against empirical data. Further innovative machine learning approach was utilised to predict slip values based on applied force through a random forest regression model trained using the 'Treebagger' function. Sensitivity analysis and comparisons with alternative methods were utilised to underscore the reliability and applicability of the findings. The results showed that 11.03 mm was the optimal plate thickness for interlocking (IMCs) in modular steel buildings, with up to 8.08% reduced material costs. Increasing plate thickness boosts its deformation resistance by up to 50.75%. ‘TreeBagger’ random forest for anomaly detection and machine learning improves slip prediction up to 7% at higher force levels.

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Section: Introductionmentioning

confidence: 99%

Optimising Plate Thickness in Interlocking Inter-Module Connections for Modular Steel Buildings: A Finite Element and Machine Learning Approach

Elsayed,

Mutalib,

Elsayed

et al. 2024

Preprint

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“…Buildings 2024, 14, x FOR PEER REVIEW 3 of 27 scores the importance of further research in this area; in this context, the choice of plate thickness for interlocking (IMCs) is pivotal as it directly influences the connection's ability to distribute stresses and resistance deformation under load. Typically, IMCs are investigated using experimental programmes, and their outcomes verified using analytical and numerical research data [7,20,34,[50][51][52][53][54][55][56][57][58]. The only approaches that can be used to investigate the impact of the interlocking (IMCs) plate thickness are experimental programmers and numerical simulation using the Finite Element (FE) methods [59][60][61][62][63][64].…”

Section: Introductionmentioning

confidence: 99%

“…The study also introduces a comprehensive sensitivity analysis, a step forward in identifying errors and anomalies and comparing the results with alternative methods (linear regression analysis and anomaly detection) and introduces a single-objective optimisation model where its goal is to maximise a composite measure of interlocking (IMCs) plate material properties against economic cost. This paper is organised as follows: Section 2 describes the methodology, focusing on modelling methods and plate Typically, IMCs are investigated using experimental programmes, and their outcomes verified using analytical and numerical research data [7,20,34,[50][51][52][53][54][55][56][57][58]. The only approaches that can be used to investigate the impact of the interlocking (IMCs) plate thickness are experimental programmers and numerical simulation using the Finite Element (FE) methods [59][60][61][62][63][64].…”

Section: Introductionmentioning

confidence: 99%

Optimising Plate Thickness in Interlocking Inter-Module Connections for Modular Steel Buildings: A Finite Element and Random Forest Approach

Elsayed,

Mutalib,

Elsayed

et al. 2024

Buildings

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Interlocking Inter-Module Connections (IMCs) in Modular Steel Buildings (MSBs) have garnered significant interest from researchers. Despite this, the optimisation of plate thicknesses in such structures has yet to be extensively explored in the existing literature. Therefore, this paper focuses on optimising the thickness of interlocking IMCs in MSBs by leveraging established experimental and numerical simulation methodologies. The study developed various numerical models for IMCs with plate thicknesses of 4 mm, 6 mm, 10 mm, and 12 mm, all subjected to compression loading conditions. The novelty of this study lies in its comprehensive parametric analysis, which evaluates the slip prediction model. A random forest regression model, trained using the ‘TreeBagger’ function, was also implemented to predict slip values based on applied force. Sensitivity analysis and comparisons with alternative methods underscored the reliability and applicability of the findings. The results indicate that a plate thickness of 11.03 mm is optimal for interlocking IMCs in MSBs, achieving up to 8.08% in material cost reductions while increasing deformation resistance by up to 50.75%. The ‘TreeBagger’ random forest regression significantly enhanced slip prediction accuracy by up to 7% at higher force levels.

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“…The experiment and non-linear finite element method (NFEM) are utilized to evaluate the ultimate longitudinal strength behaviors of hull girders for ULCS. Chen et al [17] performed the experimental tests on six stainless steel plate girders subjected to a combination of a bending moment and shear force. The critical buckling and post-buckling behavior of the slender web panels were obtained and carefully analyzed, revealing the interaction effect between bending and shear force.…”

Section: Introductionmentioning

confidence: 99%

Effects of Local Denting and Fracture Damage on the Residual Longitudinal Strength of Box Girders

Park¹,

Yoon

Muttaqie³

et al. 2023

JMSE

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The residual strength of denting- and fracture-damaged box girders were experimentally and numerically investigated. The experiments were conducted under a pure bending moment using the four-point bending test method. The load, deflection, and strain were measured. The strains of the extension structures were also measured, and the frictional forces between the model and the supported round bar were estimated. Test models consisting of two groups were fabricated. These groups were designed to estimate the residual strength of denting- and fracture-damaged models. The damage was induced by releasing a striker using a drop-testing machine to consider the dynamic effect. Additionally, numerical analyses were performed via a nonlinear finite element analysis, where the measured initial imperfection data and welding residual stresses were considered. The ultimate longitudinal moments that considered the frictional force of the round bars were reduced by 12% (on average) compared with those obtained by neglecting the frictional forces.

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Experimental behaviour of stainless steel plate girders under combined bending and shear

Cited by 22 publications

References 19 publications

Optimising Plate Thickness in Interlocking Inter-Module Connections for Modular Steel Buildings: A Finite Element and Machine Learning Approach

Optimising Plate Thickness in Interlocking Inter-Module Connections for Modular Steel Buildings: A Finite Element and Machine Learning Approach

Optimising Plate Thickness in Interlocking Inter-Module Connections for Modular Steel Buildings: A Finite Element and Random Forest Approach

Effects of Local Denting and Fracture Damage on the Residual Longitudinal Strength of Box Girders

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