Evaluating the performance of chevron braced frame with RSCD viscoplastic damper

Soltanabadi, Reza; Mamazizi, Arman; Behnamfar, Farhad

doi:10.1016/j.engstruct.2020.110190

Cited by 18 publications

(1 citation statement)

References 26 publications

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“…Vargas and Bruneau [11] studied the seismic performance of a SDOF system with metallic and viscous dampers installed in parallel. Soltanabadi et al [12] proposed a rubber steel-core damper (RSCD) exhibiting a regular and stable hysteresis performance. Furthermore, theoretical and experimental studies on the mechanical properties and vibration-control performance of lead rubber dampers were conducted, respectively, by Kim et al [13] and Zeynali et al [14].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigations of a Displacement‐Amplified Torsional Damper

Mao

Yan

Ning³

et al. 2021

Shock and Vibration

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In this work, a displacement-amplified torsional damper (DATD) is proposed for improving the seismic capacity of the beam-column joints of a frame structure. The proposed DATD uses common steel, lead, and high-damping rubber. This damper exhibits good energy dissipation under small earthquakes. Under strong earthquakes and large displacements, the strengthening of the high-damping rubber can improve the overall stiffness of the damper and increase the energy dissipation. In order to investigate the performance of the proposed DATD, theoretical analyses, simulations, and cyclic loading tests were performed, and their results were compared, showing an overall good agreement.

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Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigations of a Displacement‐Amplified Torsional Damper

Mao

Yan

Ning³

et al. 2021

Shock and Vibration

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Numerical study of concentrically braced frames with the replaceable reduced section under cyclic loading

Ramezantitkanloo,

Kafi,

Kachooee

2023

Asian J Civ Eng

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Seismic performance of structure equipped with a new rubber bracing damper system

Hejazi,

Farahpour,

Ayyash

2024

Archiv.Civ.Mech.Eng

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Nowadays, vibration energy absorption devices are widely implemented in many buildings subjected to severe vibration due to natural hazards, such as earthquakes, strong winds, and typhoons. Recently, viscous dampers have been commonly used in many structures as the most conventional damper type. However, the high maintenance cost resulting from oil leakage from cylinder seals has prompted researchers to seek an alternative system to viscous damper systems. Therefore, the main aim of this research is to develop a new rubber bracing damper (RBD) system by implementing high damping rubber material as a viscoelastic material to be installed in framed structures as diagonal bracing members. This will help dissipate vibration effects on the structure. To achieve this, the initial design for the RBD device has been developed, and finite-element simulation has been conducted to evaluate the behavior of the proposed RBD under various dynamic loading conditions. To define the viscoelastic material properties in finite-element modeling, high damping rubber material has been produced and experimentally tested to determine the numerical model of the material. Subsequently, the test data were utilized to develop the analytical model of the RBD device, and its performance was evaluated by applying cyclic loads and conducting nonlinear analysis. Furthermore, a series of cyclic dynamic tests with various displacement amplitudes and frequencies have been conducted on the prototype of the RBD device based on the finite-element results. Finally, to analyze the dynamic behavior of the structure equipped with RBD, a finite-element model of a three-story reinforced concrete frame structure furnished with RBD dampers has been developed. The response of the structure has been evaluated under seismic loads, and a parametric study has been conducted to investigate the response of the structures with various rubber properties. The numerical analysis results indicated that the implementation of the RBD device leads to a reduction in the occurrence of plastic hinges and lateral displacements of the structure by up to 69%. This demonstrates the efficiency of the RBD device in diminishing the seismic load effect on the structure’s response.

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Evaluating the performance of chevron braced frame with RSCD viscoplastic damper

Cited by 18 publications

References 26 publications

Experimental and Theoretical Investigations of a Displacement‐Amplified Torsional Damper

Experimental and Theoretical Investigations of a Displacement‐Amplified Torsional Damper

Numerical study of concentrically braced frames with the replaceable reduced section under cyclic loading

Seismic performance of structure equipped with a new rubber bracing damper system

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