Study on Mechanical Performance of Column Base Joint with Slip-Friction Arc Endplates

Li, Chengyu; Lai, Zimeng

doi:10.1007/978-981-19-5217-3_105

Cited by 1 publication

(3 citation statements)

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“…The width (W) of the arc end-plate is 550 mm, the thickness of the arc end-plate is 25 mm and the inner radius (R) is approximately 0.7 H (H is the height of the steel column section, i.e., 350 mm). The slip performance of the column base connection is most stable when the radius of the arc end-plate is 0.7 H [15,16]. The length of the rectangular bolt hole in the upper arc end-plate is 45 mm (Figure 4).…”

Section: Specimen Designmentioning

confidence: 99%

“…The frictional load generated between the column end and the friction plate dissipates energy to achieve a low and lossless structure. Li et al [15,16] proposed a new sliding frictional column base connection that achieves a lossless performance of the structure by replacing the energy dissipated by the conventional column base connection with the frictional dissipation between the curved end plates at the column end.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the previous studies [15,16], an innovative kind of steel column base connection with arc end-plates slip-friction was proposed (in Figure 1) to achieve damage-free energy dissipation. This column base connection is composed of the steel column, upper and lower arc end-plates, high-strength bolts, top plate, and base plate.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction

Luo

Zhu

2022

Buildings

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This paper proposes a new type of steel slip-friction column base connections with arc end-plates. Two arc end-plates of the steel column base, which can slide between each other to some extent, were set at the position where the column base is subject to plastic deformation. Thus, the sliding-friction energy dissipation between the arc end-plates can effectively minimize or eliminate the energy dissipation of the traditional column base connections. Cyclic loading tests were conducted to study the hysteretic performance and energy consumption performance of the proposed connections. Considerations have been given to different axial compression ratios, Belleville springs (Bes), brass plates, and horizontal loading protocols. The test results show no obvious deformation or damage during the radial cyclic loading test. The curve shape of the test measurement approximates a parallelogram, showing good force performance. The proposed connections with the increasing axial compression force can increase the energy dissipation ability and load-carrying capacity. Therefore, the proposed connection has perfect seismic behavior.

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Section: Specimen Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%