Experimental performance evaluation of elastic friction damper

Kim, Young Chan; Lee, Heon Woo; Hu, Jong Wan

doi:10.1016/j.cscm.2023.e01823

Cited by 6 publications

(6 citation statements)

References 39 publications

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“…The performance of dampers has been demonstrated to enhance the seismic performance of newly constructed buildings and effectively regulate the seismic response of retrofitted buildings, resulting in energy dissipation. This finding is supported by previous studies [13,14]. In recent decades, many energy-dissipation technologies (such as friction dampers, viscoelastic dampers, and fluid dampers) have been developed in addition to the aforementioned structural strengthening techniques to enhance the seismic performance of structures.…”

Section: Introductionsupporting

confidence: 82%

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Kasaram,

Vijayakumar,

Cruze

et al. 2023

ACAE

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Owing to its high energy dissipation characteristics, the passive damper is an effective means of mitigating natural hazards for structures. In this study, a novel magnetic pole repulsive damper (MPRD), designed for reducing structural responses during natural hazards such as earthquakes, was developed and its performance was validated. The MPRD is an effective solution for seismic protection that works on the principle of magnetic repulsion and has a higher energy dissipation capacity than conventional dampers. The MPRD was fabricated using mild steel, neodymium magnets, and a set of helical springs. Two scaled reinforced concrete frames were tested using a 50 kN loading actuator. One frame was equipped with the MPRD, while the other served as a conventional frame for comparison. The frame with the MPRD showed reduced displacements. Compared with the conventional frame, that with the MPRD exhibited an increase in load of 40 % and an increase in energy dissipation of 6,44 %. Further, an increase in lateral stiffness, a 19,23 % increase in stiffness degradation, and changes in crack patterns were observed in the frame with MPRD compared to the conventional frame. The study's success in validating the MPRD performance in reducing structural responses in moderate to high seismicity regions makes it a promising solution for building seismic protection.

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Section: Introductionsupporting

confidence: 82%

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Kasaram,

Vijayakumar,

Cruze

et al. 2023

ACAE

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“…An elastic friction damper with recentering performance was developed by Kim et al [98]. This damper is composed of polyurethane springs that provide recentering force by applying precompression, steel wires, and permanent magnet cubes that provide energy dissipation capability.…”

Section: Receiver Curve T Platementioning

confidence: 99%

A State-of-the-Art Review of Passive Energy Dissipation Systems in Steel Braces

Titirla

2023

Buildings

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An extensive investigation of the international literature is carried out regarding the passive energy dissipation systems and more specifically the dampers that can be positioned in steel braces to increase the absorption of seismic energy and to protect them from buckling, such as Friction (FDs), Metallic (MDs), and Viscous dampers (VDs). This review paper systematically reviews/refers to 196 publications from the literature; it presents a brief overview of the steel braces frames and their problems. The efficacy of all of these types of dampers has been proved, as they have been used all around the world, and their comparison in experimental or numerical studies, applications, and optimization shows that there is no unilateral solution, as the appropriate selection of effective retrofit strategies takes into account parameters such as cost, duration, technical aspects, architectural needs, etc. Finally, the aim of this review paper is to systematically present an overview of passive energy dampers that can be installed on steel braces, summarize the advantages and the disadvantages of each one, compare global parameters such as the relation of velocity and damper force, economic details, and type of study, and facilitate future researchers working in the related field, for its better understanding and development.

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“…Nowadays, there is a huge variety of dampers that could be used to minimize the dynamic response of existing or new structures by absorbing the structural vibratory energy and dissipating it through their inherent hysteresis behavior, such as viscous dampers [1][2][3], metallic dampers [4][5][6][7], and friction dampers [8][9][10][11]. Some of the dampers are applicable in steel braces [12][13], others in base isolation [14][15] and an innovative technique is the inter-story isolation for high-rise buildings [16]. To prove the effectiveness of the dampers, they were studied in experimental research or numerical research and many review articles are presented [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Dynamic response of structures with a friction-yield damper

Titirla

2024

J. Phys.: Conf. Ser.

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In this study, the effects of an energy dissipation device in a reinforced concrete building are presented. The damper that is used in this study is part of the passive energy dissipation systems and absorbs the seismic energy through yielding in bending and frictional forces that occur in the metallic elements of the damper. The existence of this friction-yield damper: (i) increases the stiffness of the structure, (ii) absorbs seismic energy, (iii) and controls the axial forces occurring at the diagonal steel braces. The first step of this study is to present the dynamic response of this damper, testing it experimentally under cyclic loading. These experimental results have been compared to the finite element model of the damper results. In addition, a three-story reinforced concrete building is studied in this paper. It is being analysed using push-over and time history analysis, as regards three different cases, (i) the benchmark r/c building (BM3), (ii) the strengthening building with steel diagonal braces (DS3), and (iii) the strengthening building with the investigated damper (DS3-Damper). A comparison of the strengthening solution is presented and further useful results are observed.

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Experimental performance evaluation of elastic friction damper

Cited by 6 publications

References 39 publications

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

Magnetic Pole Repulsive Damper (Mprd): A Promising Solution for Seismic Protection of Structures

A State-of-the-Art Review of Passive Energy Dissipation Systems in Steel Braces

Dynamic response of structures with a friction-yield damper

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