Cyclic Behaviour of Fully-Rigid and Semi-Rigid Steel Beam-to-Column Connections

Faridmehr, Iman; Tahir, M. M.; Osman, Muhammad Khusairi; Azimi, Mohammadamin

doi:10.1007/s13296-019-00290-8

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…Figure 9 shows the failure mode of the K-joint in Case 9; that is, the branch angle steel has obvious buckling, while the bolt deformation is not obvious. Figure 9(a) shows that the failure mode of Case 9 is obviously different from that of Case (6), and its branch angle steel shows obvious buckling. It can be seen from Figures 9(b)-9(d) that the deformation of components is greater than that of Case 6, and the deformation of branch angle steel is the most significant.…”

Section: Effect Of Bolt Gradementioning

confidence: 99%

“…Based on the two-parameter exponential model, Zhou et al [5] proposed a practical analysis model of the moment-rotation relation, which can predict the ultimate flexural capacity of steel beams to concrete-filled steel tube column connections with bidirectional bolts with different size parameters and material properties. Faridmehr et al [6] carried out cyclic loading tests on rigid and semirigid steel beam-column connections.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study on the Mechanical Properties of Transmission Tower K-Joints under Cyclic Loading

Zhang

Wang

et al. 2021

Shock and Vibration

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During the vibration of a transmission tower, the joints will be subjected to a reciprocating load. To obtain the accurate state of the transmission tower under the load, the mechanical properties of the joints under the vibration load must be considered. In this paper, the mechanical properties of typical K-joints in transmission tower structures are studied by numerical simulation. The failure mode of the K-joint under cyclic loading is also analyzed. The mechanical properties of the K-joint are discussed from the aspects of hysteretic characteristics, stiffness degradation, energy dissipation capacity, and ductility evaluation, and the influencing factors are discussed. The results show that the failure mode of the K-joint is related to the bolt grade and steel strength. When analyzing K-joints, the moment-rotation hysteresis curve should be combined with the realistic parameters of joints to consider the hysteretic behavior of the K-joint. The results provide a theoretical reference for the accurate modeling of transmission towers.

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Section: Effect Of Bolt Gradementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Mechanical Properties of Transmission Tower K-Joints under Cyclic Loading

Zhang

Wang

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

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“…Moreover, the ductility and rotation capacity of the joint were significantly improved by using an optimised weld connection. Faridmehr et al [12] tested the cyclic characteristics of eight full-scale unstiffened extended end-plates with variable parameters and one side plate moment connection. They found that the performance of the side plate moment connection was superior to that of the end-plates.…”

Section: Introductionmentioning

confidence: 99%

Stress Response and Initial Stiffness of Side Plate Connections to WCFT Columns

2021

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To study the mechanism of load transfer in double-side-plate connections between I-beams and wall-type concrete-filled steel tubular columns, a pseudo-static experiment and finite element analysis were conducted for two full-scaled specimens. The results revealed that the primary load was transmitted along an S-shaped path in the side plate, and the primary strain occurred in an X-shaped region between the left and right steel beam flanges. The shear force in the steel beam web was transmitted first to the side plate centre and then to the joint area, where the side plate, steel tube web, and concrete all resisted the internal force. Based on principal component methods, a calculation formula was established for initial rotational stiffness that comprehensively considers the influence of the tensions, compression, and shear deformation of the cover plate, side plate, and web. Comparing this formula with an existing model showed that the proposed formula is suitable for new types of side plate joints. Moreover, it can accurately calculate the initial rotational stiffness of the joint, thus providing a reliable basis for future engineering design.

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