Passing-through I-beam-to-CHS column joints made by laser cutting technology: Experimental tests and design model

Couchaux, Maël; Vyhlas, Vojtech; Kanyilmaz, Alper

doi:10.1016/j.jcsr.2020.106298

Cited by 23 publications

(10 citation statements)

References 16 publications

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“…LC technology is typically used for industrial manufacturing applications such as cutting structural steels. Apart from the high cutting speed of the laser technology, using LC is very helpful for designers to freely design structures with various architectures optimizing the joint geometries and maximizing the structural response both of elements and joints [23][24][25]. One of the most important characteristics of the LC process is its small HAZ in comparison with other thermal cutting processes such as oxy-fuel or plasma.…”

Section: Laser Cutting For Structural Applicationmentioning

confidence: 99%

Investigation of thermal behaviour of structural steel S235N under laser cutting process: Experimental, analytical, and numerical studies

Shamlooei

Zanon

Valli³

et al. 2022

Engineering Structures

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Section: Laser Cutting For Structural Applicationmentioning

confidence: 99%

Investigation of thermal behaviour of structural steel S235N under laser cutting process: Experimental, analytical, and numerical studies

Shamlooei

Zanon

Valli³

et al. 2022

Engineering Structures

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“…As stated before, a comprehensive experimental campaign was carried out by INSA, Rennes [16] to validate the numerical models for both load cases. Two additional solid circular plates were connected to each extremity of the CHS column which were finally pinned to rollers following the boundary conditions.…”

Section: Modelling Approach and Experimental Calibrationmentioning

confidence: 99%

Laser Cut passing‐through Open‐to‐CHS Beam‐to‐Column Connections

Das¹,

Kanyilmaz

Degée

2021

ce papers

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Although Circular Hollow Sections (CHS) have always demonstrated their excellent properties in resisting high compression, tension as well as bending in all directions, thanks to their inherent shape and geometry, the existing open ‐to‐CHS connections used in the current industry (conventional connections) generally require a substantial amount of stiffeners or gusset plates due to their construction method i.e. direct welding or diaphragm connections. As a result, huge welding quantities are required which further complicates the fabrication procedure. Furthermore, due to a direct connection, the CHS column becomes prone to localized distortions. In order to minimize the aforementioned drawbacks, a “passing‐through” approach was proposed and investigated in the EU‐RFCS research project LASTEICON where connecting elements (i.e. one or more steel plates or a piece of I‐profile) pass through the CHS column through Laser Cut slots made in the column and the primary beams (namely the “main” I‐beams) are connected to both ends of the passing through elements (named as “through‐members”). The applied shear force, and if relevant the applied moment, is effectively transferred by the “through‐member” to the CHS column, whereas, the CHS column contributes significantly in resisting it through its large flexural and shear capacity. The present article summarizes the most interesting results obtained based on the experimentally validated numerical simulations for the different types of LASTEICON connections. Thanks to the superior fabrication quality and versatility offered by the laser cutting technology, different types of connection configurations were developed within the project. This article introduces a few of these possibilities: (1) Two‐way steel moment resisting connections, (2) Asymmetric steel connections, (3) Four‐way steel connections, and (4) Composite connections.

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“…Recently, research works have started to fill this knowledge gap. For instance, the LASTEICON research project [ 14 , 15 , 16 , 17 ], financed by the European Commission, has studied the technical aspects related to the use of the 3D-LCT in Civil Engineering. Furthermore, attention has been devoted to defining design equations for exploiting the CHS column and through I-beam joints in the construction market.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Modelling of the Strength and Stiffness of Circular Hollow Section Tube under Localised Transverse Compression and Tension

et al. 2023

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The component method is a powerful tool for designing and modelling steel beam-to-column connections. Its widespread use is ensured by several formulations currently included in Eurocode 3 part 1.8 for welded and bolted joints. However, the recent use of 3D Laser Cutting Technology (3D-LCT) in the construction market has enlarged the range of solutions, allowing the realisation of tubular columns with passing-through elements. Given the recent development, no design formulations are currently provided for this typology. At this moment, only a few research studies have developed to fill this knowledge gap. At the University of Salerno, since some years, research efforts are ongoing to characterise the flexural strength of connections between Circular Hollow Section columns and passing double-tee beams, suggesting methodologies to predict the behaviour of the resistance and stiffness of this typology and some of its elementary joint components. Within this framework, this paper aims to examine the strength and stiffness of one of the main components of this joint, which was never examined previously, that is the so-called tube under localised transverse tension/compression. Design formulations are derived from a parametric study carried out through numerical simulations of several geometric configurations.

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Passing-through I-beam-to-CHS column joints made by laser cutting technology: Experimental tests and design model

Cited by 23 publications

References 16 publications

Investigation of thermal behaviour of structural steel S235N under laser cutting process: Experimental, analytical, and numerical studies

Investigation of thermal behaviour of structural steel S235N under laser cutting process: Experimental, analytical, and numerical studies

Laser Cut passing‐through Open‐to‐CHS Beam‐to‐Column Connections

Mechanical Modelling of the Strength and Stiffness of Circular Hollow Section Tube under Localised Transverse Compression and Tension

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