Simulation of the cyclic behavior of J-shaped steel hysteresis devices and study on the efficiency for reducing earthquake responses of space structures

Kato, Shiro; Kim, Yun-Beom; Nakazawa, Shoji; Ohya, Takeshi

doi:10.1016/j.jcsr.2005.03.006

Cited by 34 publications

(13 citation statements)

References 4 publications

(4 reference statements)

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“…The validity of the FE program was verified by comparison of the simulated results with the corresponding experimental results of a J-damper in the previous paper [7].…”

Section: Parametric Analysismentioning

confidence: 88%

“…The concept and configuration of the J-damper and its application to a spatial structure were explained in detail in a previous paper [7]. Its FE modeling and some assumptions necessary for simulating the behavior of a J-damper were also described.…”

Section: Characteristics and Numerical Modeling Of A J-dampermentioning

confidence: 99%

“…For this reason, it is very important to grasp the mechanical behavior of the adopted dampers. Related to the last design method of the three, authors developed a new steel hysteresis device called a J-damper and showed its excellent earthquake performance in the previous paper [7].…”

Section: Introductionmentioning

confidence: 99%

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A finite element parametric study on the mechanical properties of J-shaped steel hysteresis devices

Kato

Kim

2006

Journal of Constructional Steel Research

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“…The validity of the FE program was verified by comparison of the simulated results with the corresponding experimental results of a J-damper in the previous paper [7].…”

Section: Parametric Analysismentioning

confidence: 88%

Section: Characteristics and Numerical Modeling Of A J-dampermentioning

confidence: 99%

See 1 more Smart Citation

A finite element parametric study on the mechanical properties of J-shaped steel hysteresis devices

Kato

Kim

2006

Journal of Constructional Steel Research

Self Cite

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“…There are two analysis given in this paper; the first is a static analysis and the second is a dynamic analysis. To conduct the static analysis, a computational program based on a concept of the finite element had been developed to analyze a stiffness and strength of U-damper [10], [20]. This damper is modeled by 20 nodes-hexahedron elements.…”

Section: A Geometrical Propertiesmentioning

confidence: 99%

“…Many previous researches were actually conducted related to the models of the energy absorber in buildings. The introduced models were varied, such as pendulum isolator [7], lead rubber bearing [8], viscous damper [9], friction damper [10]. All these models were installed into space structures with a role to reduce the displacement due to seismic load.…”

Section: Introductionmentioning

confidence: 99%

Static and Dynamic Analysis of Steel U-Damper for Space Structures

Satria¹,

Son²,

Haris³

et al. 2018

International Journal on Advanced Science, Engineering and Information Technology

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This paper is a part of research in searching an appropriate damper for space structures constructed in seismic areas. The study investigates a stiffness, strength and energy dissipation of the damper under loading. For this purpose, a U-shaped hysteresis steel damper is modeled and analyzed by a nonlinear finite element technique which involves both geometrical and material nonlinearities. The model is subjected to a monotonic increasing load which is applied horizontally until one cycle of hysteresis is formed. The stiffness, strength, and energy dissipation of the damper is directly determined from the graph of load-displacement. Feasibility of the hysteresis damper is investigated further for application on building construction. The damper is placed on the roof and supporting structure of the building. A 2-DOF spring-mass model, as a simple modelling of the building is introduced with damper's properties are taken from the results of the first study. A seismic load is applied to see the response of the model. The static numerical analysis showed that the properties of the introduced damper, such as stiffness, strength and energy dissipation, are depending on the geometry of the damper. The results show that reducing the length of lower plate or height of the damper will increase stiffness, strength and energy absorption. In contrary, reducing the width of the damper will decrease all properties. Moreover, the results of the dynamic analysis show the feasibility of damper to reduce to reduce the amplitudes of the response of the roof under seismic load.

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Development of an innovative metallic damper for concentrically braced frame systems based on experimental and analytical studies

Ghamari

Kim

Jeong

2022

Structural Design Tall Build

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Although concentrically braced frames (CBFs) possess high lateral stiffness and strength, the buckling of compressive members indicates that a system does not have appropriate ductility. Therefore, CBF is not a successful system for high seismic regions. Comprehensive studies have been performed on this drawback concerning CBF systems. The use of a metallic damper is considered an appropriate method to enhance the behavior of CBFs. While metallic dampers improve the hysteretic behavior of the CBF, they impose additional costs on the structures. Therefore, in this study, a steel damper, which is economical and straightforward to construct and replace after a severe earthquake, was developed. The proposed damper was investigated experimentally and numerically. In addition, a parametric study was performed to evaluate the effect of the three types of damper mechanisms (shear, shear-flexural, and flexural) with three types of buckling (elastic, inelastic, and plastic) on the behavior of the proposed damper. The experimental results, as well as the numerical results, indicate that the shear damper exhibits better performance than the other dampers in terms of strength and stiffness. Except in the case where the shear damper is accompanied by plastic buckling, it has a higher energy dissipation capability. In addition, a flexural damper with elastic buckling cannot be considered as an energy-dissipating device because of the fracturing of the damper due to displacement near the elastic zone. Fundamental relationships were used to predict the behavior of these dampers, and these predictions showed good agreement with the finite element results.

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Simulation of the cyclic behavior of J-shaped steel hysteresis devices and study on the efficiency for reducing earthquake responses of space structures

Cited by 34 publications

References 4 publications

A finite element parametric study on the mechanical properties of J-shaped steel hysteresis devices

A finite element parametric study on the mechanical properties of J-shaped steel hysteresis devices

Static and Dynamic Analysis of Steel U-Damper for Space Structures

Development of an innovative metallic damper for concentrically braced frame systems based on experimental and analytical studies

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