Recent research advances of high strength steel welded hollow section joints

Lan, Xiaoyi; Chan, Tak Ming

doi:10.1016/j.istruc.2018.11.015

Cited by 26 publications

(8 citation statements)

References 39 publications

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“…For the chord that was analysed in this research, the limit deformation calculated in this way is 2.4 mm. Many of the recent researches on the bearing capacity of this type of joints were based on the application of the local deformation limit criteria [4,6,14]. Herein the local deformation was calculated for two different load levels.…”

Section: Resultsmentioning

confidence: 99%

Numerical Modelling of Y Joints of Trusses Made of Steel Hollow Sections

et al. 2020

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Section: Resultsmentioning

confidence: 99%

Numerical Modelling of Y Joints of Trusses Made of Steel Hollow Sections

et al. 2020

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“…Firstly, the maximum load appearing in the experiment can be taken as the joint resistance [7]. Alternatively, a deformation criterion can be employed, such as the "3%-rule" proposed by Lu et al [9], where the resistance corresponds to the load at given deformation limit (such as 3% of the chord width) or to the peak load, whichever is smaller [10,4,11]. In this study, the resistance of the joint is based on the maximum load and the deformation-based criteria are explored in later research.…”

Section: Behavior and Resistancementioning

confidence: 99%

Experiments on Welded High Strength Steel S700 K‐joints

Alshawwa,

Mela,

Ahola

et al. 2023

ce papers

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High strength steel (HSS) hollow sections are widely available for structural applications nowadays. A typical structure employing HSS hollow sections is a truss with welded joints. The behavior and design of HSS welded tubular joints still includes some open issues, and so‐called K‐joints require more experiment‐based research. This research addresses the effect of specific parameters (chord preloading and the gap size) on the behavior of welded HSS K‐joints made from cold‐formed hollow sections. These parameters have been selected based on their limited conducted research. In the experiments the degree of chord tension preloading and gap size were varied to obtain a broad scope for the study. This study of the aforementioned parameters was conducted on 6 welded HSS K‐joints of grade S700. The study is entirely based on experiments targeting the effect of each parameter in a comparative manner. The tested joints were fabricated with full strength butt and fillet welds and were designed to target one type of failure in K‐joints to occur which is chord face failure. Subsequently, the load‐displacement behavior of the tested joints is reported. The experimental results are compared with the expected behavior according to the most recent version of the second generation Eurocode. The level of agreement between the tests and current guidelines is compared and analyzed. Accordingly, this research contributes to the ongoing discussion on behavior and resistance of welded HSS hollow section joints.

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“…The material model for the tubular braces is a double-stage, modified RO curve proposed by Gardner and Yun [29] for cold-formed carbon steel, as shown by Equation (2). The nominal material properties and the stress-strain curve of the material model corresponding to each steel grade are given in Table 7 and shown in Figure 10, respectively.…”

Section: Materials Models For Parametric Studymentioning

confidence: 99%

“…The structural response of different truss joints made of HSS has been studied in recent years [2] [3] [4]. A series of research [5] [6] [7] [8] [9] has been carried out to study numerically and experimentally the structural behavior of the joint shown in Figure 1, where mild steel and HSS were used.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Steel Strength on the Behavior of a K‐Joint in a Slim‐floor Truss

et al. 2021

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This paper studies the applicability of the strain‐limit criterion in the Eurocode 3 to defining the limit load for a K‐type truss joint, which connects two tubular braces to a plate chord. The joint is used in a novel Finnish slim‐floor system with integrated load‐bearing members of High‐Strength Steel (HSS). The Finite‐Element Model (FEM) of the joint is validated by the experimental results of scaled‐down, isolated joint specimens made of S420 and S700 steel. The validated FEM is used to study the failure of the joint and the effect of steel strength on the failure mode. For the specific geometry of this joint, the criterion based on the 5% strain limit proposed by the Eurocode 3 was found to be well justified for the steel grades S235 and S355 and reasonably applicable to the steel grades S460 and S550. However, the results indicated that the value of 5% for the strain limit was too large, if the joint was made of the S690 steel grade.

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Recent research advances of high strength steel welded hollow section joints

Cited by 26 publications

References 39 publications

Numerical Modelling of Y Joints of Trusses Made of Steel Hollow Sections

Numerical Modelling of Y Joints of Trusses Made of Steel Hollow Sections

Experiments on Welded High Strength Steel S700 K‐joints

The Effect of Steel Strength on the Behavior of a K‐Joint in a Slim‐floor Truss

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