Axial tensile behavior and strength of welds for CHS branches to SHS chord joints

Wang, Wei; Gu, Qingbao; Ma, Xinxu; Wang, Junjie

doi:10.1016/j.jcsr.2015.08.044

Cited by 13 publications

(2 citation statements)

References 12 publications

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“…This is due to the weld failing and steel deforming. Gauge B3T recorded sporadic results due to the interior stiffening plates not welded together which would have transmitted greater tensile forces from the beam to the column [13].…”

Section: 5mentioning

confidence: 99%

An Alternative Stiffening Method for Rigid CHS L-Joints

Holmes¹,

Kierans²,

Crean³

2016

Journal of Structures

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The paper presents a new method of stiffening CHS L-joints and compares it against current stiffened and unstiffened moment connections. The method is derived from studying the failure modes of existing methods, typically local buckling and ovalisation of the section. Unstiffened right-angled CHS connections have been shown to be weak due to local buckling and ovalisation. Stiffing plates placed across the joint can increase the moment capacity of the section by preventing ovalisation of the section but is architecturally unsightly. An alternative approach, where a stiffening plate welded vertically inside both the column and beam, outperformed the unstiffened frame plate in terms of reduced ovalisation and increased load capacity. It was also found to perform better than the stiffened connection in terms of both vertical and horizontal deflection. However, more research is required to ensure a fully restrained connection to satisfy codes of practice and constructible.

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Section: 5mentioning

confidence: 99%

An Alternative Stiffening Method for Rigid CHS L-Joints

Holmes¹,

Kierans²,

Crean³

2016

Journal of Structures

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“…Some research has been conducted in recent years on the static and dynamic behaviour of hollow and concrete filled SHS joints with different configurations [16][17][18][19][20][21][22]. Literature review shows that there is little research on skewed plate-to-SHS X-joints under compression.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigations on Skewed Plate-to-SHS X-Joints Under Compression

2019

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Experimental and numerical investigations were conducted on skewed plate-to-SHS X-joints under compression. In order to research static behavior of skewed plate-to-SHS X-joints under compression, a total of ten specimens including orthogonal and skewed plate-to-SHS X-joints were tested. The failure modes, compression-displacement curves and strain intensity distribution curves of joints were presented in the paper. The effects of τ (The ratio of plate thickness to SHS chord thickness) and θ (skewed angle between plate and SHS chord axis) on the ultimate bearing capacity and ductility of X-joints were also studied. The corresponding finite element analysis (FEA) was also performed and calibrated against the test results. Therefore, an extensive parametric study was carried out to evaluate the effects of main geometric parameters (τ and θ) on the static behavior of skewed plate-to-SHS X-joints under compression. Results of these tests showed that as value of θ increased, ultimate bearing capacity of X-joints increased irregularly. As value of τ increased, the ultimate bearing capacity of X-joints increased significantly. Maximum strain intensity was located in the region of weld seam end between plate and SHS chord. As value of θ increased, ductility of joints with thin plates increased; ductility of joints with thick plates decreased. Except X-joints with θ=90 0 , coefficient of ductility of joints with thick plates were larger than that of joints with thin plates. In addition, the design equations were proposed for skewed plate-to-SHS X-joints under compression, which were shown to be accurate and reliable.

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Experimental and Numerical Study on Complex Multi-planar Welded Tubular Joints in Umbrella-Type Space Trusses with Long Overhangs

Jiao

Lei

et al. 2018

Int J Steel Struct

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Axial tensile behavior and strength of welds for CHS branches to SHS chord joints

Cited by 13 publications

References 12 publications

An Alternative Stiffening Method for Rigid CHS L-Joints

An Alternative Stiffening Method for Rigid CHS L-Joints

Experimental and Numerical Investigations on Skewed Plate-to-SHS X-Joints Under Compression

Experimental and Numerical Study on Complex Multi-planar Welded Tubular Joints in Umbrella-Type Space Trusses with Long Overhangs

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