Journal
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
Volume 213, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jcsr.2023.108336
Keywords
Modular construction; 3D sand printing; Rectangular hollow section; modular connection; Finite element analysis
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This paper presents a new approach for steel modular structures, incorporating the S-CN connector and rectangular hollow section (RHS) steel members. The mechanical behavior of S-CN connectors and their application in beam-column connections under compressive loading are studied numerically and validated experimentally.
This paper presents a novel approach for steel modular structures, incorporating the S-CN connector - a hybrid tie rod and connector connection method - along with rectangular hollow section (RHS) steel members. The study numerically investigates the mechanical behavior of S-CN connectors and their application in beam-column connections under compressive loading. The compressive load-bearing capacity of the proposed connection is determined following AISC 360-16 guidelines, predicted through a finite element analysis approach and validated by experimental data. Parametric analysis reveals the impact of local buckling in modular nodes on the connector's load-bearing capacity. The results demonstrate that tie plate thickness has a minimal effect, while reducing the modular node thickness leads to a linear decrease in load capacities. Furthermore, the failure mode of the beam-column connection depends on the compressive capacities of both the RHS column and the S-CN connector.
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