Multiparameter Optimization Design of Self-centering Friction Damper Using Shape Memory Alloy Bars

Chang, Zhaoqun; Xing, Guohua; Han, Meng; Liu, Boquan

doi:10.1080/13632469.2022.2033354

Cited by 5 publications

(3 citation statements)

References 44 publications

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“…The SCFD is hinged to structural components, facilitating its installation and replacement. As shown in figure 2, the working principle of the SCFD is introduced [36]. The SMA bars are placed parallel to the loading direction of the SCFD and are forced to elongate when the SCFD is loaded under either tension or compression.…”

Section: Self-centering Friction Dampermentioning

confidence: 99%

“…A large-scale SCFD of 1310 mm was designed and fabricated based on the optimal results of a previous study [36]. The critical dimensions of the fabricated specimens are shown in figure 3.…”

Section: Specimen Detailsmentioning

confidence: 99%

“…Using a wedge and barrel anchorage to fix the SMA bars, an effective length of 600 mm was obtained. Based on the optimal results in previous studies [36,37], the relationships between the total cross-sectional area of the SMA bars (A) and the friction force (f ) were established, i.e. f = 0.100 A.…”

Section: Specimen Detailsmentioning

confidence: 99%

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Cyclic behavior and seismic control performance of SMA friction damper

Han

Chang

Xing

et al. 2023

Smart Mater. Struct.

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Using superelastic shape memory alloy (SMA) bars and non-asbestos organic (NAO) friction material, this study developed an innovative self-centering friction damper (SCFD). This hybrid passive control device consists of the self-centering device using SMA bars and the friction energy dissipation device which can provide excellent self-centering ability and energy-absorbing ability to meet the requirements of civil engineering applications. To explore the feasibility and hysteretic properties of the self-centering friction damper, experimental tests under cyclic loading were conducted. According to the experimental results, the proposed SCFD exhibited a stable and repeatable flag-shaped hysteretic response, which can achieve the recovered displacement of 76.07% and dissipated energy of 6.04 kJ at 42 mm. The finite element model of the SCFD using ABAQUS software was established and validated by experimental results. And a series of numerical simulations with different parameters were performed, which enables a more in-depth interpretation of the SCFD. Additionally, a system-level nonlinear time-history analysis was performed on a three-story steel frame equipped with and without SCFDs. The dynamic analysis results indicated that the SCFDs could effectively reduce structural damage and enhance post-earthquake recoverability under rare earthquakes.

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Section: Self-centering Friction Dampermentioning

confidence: 99%

“…A large-scale SCFD of 1310 mm was designed and fabricated based on the optimal results of a previous study [36]. The critical dimensions of the fabricated specimens are shown in figure 3.…”

Section: Specimen Detailsmentioning

confidence: 99%