Numerical study of PPVC modular steel constructions (MSCs) with selected connection strategies under varied earthquake scenarios

Elsayed, Khaled; Mutalib, Azrul A.; Elsayed, Mohamed; Azmi, Mohd Reza

doi:10.1016/j.rineng.2024.102076

Cited by 1 publication

(1 citation statement)

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“…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]. Those approaches have not addressed the optimum plate thickness for interlocking (IMCs) well.…”

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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