Behavior of thin-walled beam-column modular connection subject to bending load

Dhanapal, Jothiarun; Ghaednia, Hossein; Das, Sreekanta; Velocci, Jonathan

doi:10.1016/j.tws.2019.106536

Cited by 36 publications

(8 citation statements)

References 12 publications

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“…So far, existing inter-module connections have been influenced by conventional design methods, relying on bolts [4][5][6][7][8], welds [9], grout [10], or post-tensioning [11][12]. These methods often require laborious on-site tasks, hindering the demountability of MBS.…”

Section: Introductionmentioning

confidence: 99%

A Novel Optimised Inter-Locking Connection For Steel Modular Building Systems To Enable Re-Use

Corfar¹,

Tsavdaridis²

2022

Preprint

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Hot-rolled steel Modular Building Systems (MBS) represent the highest level of Off-Site Con-struction (OSC) in which prefabricated, and often prefinished steel modules are delivered to site on a ‘just-in-time’ basis and assembled into complete building systems. Besides the already well-known advantages such as tight tolerance control, reduced on-site human intervention and speedier construction times, the context of the ongoing climate emergency has brought forward the connection between circular economy (CE) and opportunities of steel MBS for disassembly and reuse. However, the use of hybrid structural systems, the functionality of inter-modular connections, and the effects of complex and demanding load transfer paths often question the actual prospects of deconstruction, repair, relocation, or reuse. So far, inter-module connections have been heavily influenced by conventional design methods, relying on bolts, welds or even prestressing strands, which require laborious on-site tasks and simplifying design assumptions, often raising uncertainty about structural behaviour of modular buildings.In an attempt to mitigate limitations of existing systems, a new inter-module connection was envisaged, inspired from the inter-locking method of joining. At the forefront of the develop-ment process, topology optimisation (TO) was adopted in the conceptual design of the main component of the joint, assisting the morphogenesis process which provided the final configu-ration of the novel system. The structural performance of the newly proposed connection was assessed through a series of static monotonic and quasi-static cyclic FE analyses. Results re-vealed that in terms of load-bearing capacity, ductility and energy dissipation ability, the struc-tural behaviour of the new connection was comparable to that of other inter-module joints in literature, while managing to tackle their limitations by introducing both an easy-to-install and easy-to-disassemble configuration with promising opportunities for reuse, further demonstrat-ing that inter-locking joints could be worthy competitors for traditional means of attachment in the future of modular construction.

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Section: Introductionmentioning

confidence: 99%

A Novel Optimised Inter-Locking Connection For Steel Modular Building Systems To Enable Re-Use

Corfar¹,

Tsavdaridis²

2022

Preprint

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“…The results revealed that the connection can display superior dynamic behaviour. Dhanapal et al (2020) introduced a unique cast-steel connector, which was studied through full-scale tests. The study concluded that the connection can safely carry the design loads.…”

Section: Introductionmentioning

confidence: 99%

Research on the flexural behavior of a novel inter-module connection with a bolt and shear key fitting for modular steel buildings

Chen

Cao

Chen

et al. 2022

Advances in Structural Engineering

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Modular steel buildings (MSBs) can meet the needs of building industrialization and have been developed in many countries. The inter-module connection is crucial to the overall performance of MSBs. An inter-module connection with bolt and shear key fitting was proposed in this paper, which is convenient for the on-site erection of the steel modules. The flexural performance of the connection was studied. Static tests were carried out to study the contribution of the key load-bearing components to the flexural performance of the novel connection. A finite element model was then proposed and verified, by which a parametric analysis to study the effects of the key components was conducted. It is found that the parameters significantly affecting the flexural performance of the connection include the diameter of the bolt and the thickness of the bottom plate. The results also showed that the contribution of the shear key to the flexural performance of the connection could be ignored. The flexural performance of multi-module connection was studied, and the results revealed that the multi-module connection can be designed as multiple two-module connections. Formulas for calculating the flexural capacity and rotational stiffness of the connection were finally proposed and verified.

show abstract

Section: Introductionmentioning

confidence: 99%

A Novel Optimised Inter‐Locking Connection for Steel Modular Building Systems to Enable Reuse

Corfar

Tsavdaridis

2022

ce papers

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A new inter‐module connection was developed, adopting structural topology optimisation (STO) and the inter‐locking method of joining. The structural performance of the connection was assessed through a series of monotonic and cyclic FE analyses. Results revealed that the structural behaviour of the new connection was comparable to that of other inter‐module joints in the literature, while managing to tackle their limitations by introducing both an easy‐to‐install and easy‐to‐disassemble configuration with promising opportunities for reuse, demonstrating that inter‐locking joints can be worthy competitors for traditional means of attachment in the future of modular construction.

show abstract

Behavior of thin-walled beam-column modular connection subject to bending load

Cited by 36 publications

References 12 publications

A Novel Optimised Inter-Locking Connection For Steel Modular Building Systems To Enable Re-Use

A Novel Optimised Inter-Locking Connection For Steel Modular Building Systems To Enable Re-Use

Research on the flexural behavior of a novel inter-module connection with a bolt and shear key fitting for modular steel buildings

A Novel Optimised Inter‐Locking Connection for Steel Modular Building Systems to Enable Reuse

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