Recommendation on block shear strength equation of double shear four-bolted connection in cold-formed mild carbon steel

Kim, JunSu; Cho, Yong Hyun; Kim, Taesoo

doi:10.1016/j.istruc.2021.06.078

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Its total length is 300 m. All pipes excluding bellows were assumed to be SS275 carbon steel pipes. According to Kim et al [29], the elastic modulus, the yield stress, and the tensile strength of SS275 carbon steel were estimated to be 216,000 MPa, 300.9 MPa, and 445.46 MPa, respectively. For the linear pipe, a reduced S4R with a mesh size of 1.5 mm in the hoop direction and 500 mm in the longitudinal direction was used.…”

Section: Development Of Soil-bellows Piping System Interaction Fe Modelmentioning

confidence: 99%

Application of Seismic Fragility of Buried Piping Systems with Bellows Expansion Joints

et al. 2022

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Bellows expansion joints are known to have a large displacement capacity and can thus be potentially used to improve the seismic performance of buried piping systems. However, there are no guidelines on the installation of bellows expansion joints for the seismic performance improvement of buried piping systems. Furthermore, there are very few studies on the seismic performance of buried piping systems with bellows expansion joints. In this study, therefore, we performed seismic fragility analysis according to the installation conditions to obtain basic data for the installation guidelines of bellows expansion joints. Therefore, in this study, an experimental test was performed on bellows expansion joints considering the characteristics of earthquake loading conditions, and a 3D finite element (FE) model using the ABAQUS platform was developed and validated based on the experimental results. This model was verified by comparing the force-displacement relationship and energy dissipation. Leakage occurred at a displacement of 113.6 mm in the experiment, and the FE analysis result was also applied up to the same displacement. In the case of energy dissipation, an error between the FE model and experimental result was determined not to be significant. However, the appearance of such physical performance errors is due to the manufacturing errors resulting from the bellows forming process and the variability of material properties. Finally, seismic fragility analysis of buried pipeline systems with bellows expansion joints was performed. In addition, the following cases were used for analysis according to whether bellows were applied or not: (1) without a bellows expansion joints; (2) with a single bellows expansion joint; and (3) with two bellows expansion joints. In conclusion, it was found that the seismic performance of the buried pipeline system was improved when bellows were applied. However, the effect of the seismic fragility curve according to the increase in the number of bellows was insignificant.

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Section: Development Of Soil-bellows Piping System Interaction Fe Modelmentioning

confidence: 99%

Application of Seismic Fragility of Buried Piping Systems with Bellows Expansion Joints

et al. 2022

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“…Shear testing of steel bolted connection parts has always been challenging for laboratory researchers [1][2][3][4]. The fact that these connections' centre of rotation depends on the number and position of the bolts (changing as these undergo non-linearity) and that cover plate connections are made of several independent parts makes it difficult to design an experimental test, except if specific machinery is available.…”

Section: Introductionmentioning

confidence: 99%

Shear Testing of Topologically Optimised Web Cover Plates in Splice Connections—Experiment Design and Results

Ribeiro,

Bernardo,

Nepomuceno

et al. 2023

Materials

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Testing shear-resisting plates in steel connections is one of the most challenging laboratory undertakings in steel construction, as the most common experimental layout design includes simulating the connection with its adjoining members. This significant hindrance gained particular magnitude as the need to test prototypes of topologically optimised shear cover plates became more pressing. Indeed, new code-compliant topology optimisation approaches for steel construction have recently been offered, and physically non-linear analyses have been demonstrated to be vital for assessing these elements. Hence, a rapid and reliable experimental process has become a fundamental necessity. To answer this need, a novel layout is herein proposed, in which topologically optimised and previously numerically examined bolted shear plates of a well-known steel joint were tested. The results allowed for the definition of the material trilinear model for use in subsequent numerical analysis, as well as the validation of the numerical simulation results. The discrepancy between the previously mathematically anticipated and empirically determined ultimate resistance did not exceed 1.7%.

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Parametric study on the pull-out performance of screw connections in cold-formed thin-walled steel structures

Liu

Deng²,

Zhong³

et al. 2023

Engineering Structures

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Recommendation on block shear strength equation of double shear four-bolted connection in cold-formed mild carbon steel

Cited by 4 publications

References 21 publications

Application of Seismic Fragility of Buried Piping Systems with Bellows Expansion Joints

Application of Seismic Fragility of Buried Piping Systems with Bellows Expansion Joints

Shear Testing of Topologically Optimised Web Cover Plates in Splice Connections—Experiment Design and Results

Parametric study on the pull-out performance of screw connections in cold-formed thin-walled steel structures

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