Vol. 17, No. 4, pp. 412-424 (2021)
SIMPLIFIED MODELLING OF NOVEL NON-WELDED JOINTS FOR MODULAR STEEL BUILDINGS
Kashan Khan 1, Zhi-Hua Chen 1, 2, 3, Jia-Di Liu 1, * and Jia-Bao Yan 1, 3
1 Department of Civil Engineering, Tianjin University, Tianjin, China
2 State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin, China
3 Key Laboratory of Coast Civil Structure and safety, Ministry of Education, Tianjin University, Tianjin, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 14 November 2020; Revised: 10 May 2021; Accepted: 10 May 2021
DOI:10.18057/IJASC.2021.17.4.10
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ABSTRACT
Prefabricated modular steel (PFMS) construction is a more efficient and safe method of constructing a high-quality building with less waste material and labour dependency than traditional steel construction. It is indeed critical to have a precise and valuable intermodular joining system that allows for efficient load transfer, safe handling, and optimal use of modular units' strength. Thus, the purpose of this study was to develop joints using tension bolts and solid tenons welded into the gusset plate (GP). These joints ensured rigid and secure connectivity in both horizontal and vertical directions for the modular units. Using the three-dimensional (3D) finite element (FE) analysis software ABAQUS, the study investigated the nonlinear lateral structural performance of the joint and two-storey modular steel building (MSB). The solid element FE models of joints were then simplified by introducing connectors and beam elements to enhance computational efficiency. Numerous parameters indicated that column tenons were important in determining the joint's structural performance. Moreover, with a standard deviation (SD) of 0.025, the developed connectors and beam element models accurately predicted the structural behaviour of the joints. As a result of their simplification, these joints demonstrated effective load distribution, seismic performance, and ductility while reducing computational time, effort, and complexity. The validity of the FE analysis was then determined by comparing the results to the thirteen joint bending tests performed in the reference.
KEYWORDS
Novel joints, Modular steel building, Finite element analysis, Simplified model, Parametric study
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