Seismic performance of steel structures with seesaw energy dissipation system using fluid viscous dampers

Kang, Jae‐Do; Tagawa, Hiroshi

doi:10.1016/j.engstruct.2013.05.015

Cited by 67 publications

(19 citation statements)

References 26 publications

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“…When designing the dampers, it may be convenient to distribute C values equally in each floor. However, many experimental results have shown that the efficiency of damper on the upper stories is smaller than the lower ones [5,8].…”

Section: Modelling Of System With Fvdmentioning

confidence: 94%

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Study of Nonlinear Fluid Viscous Dampers Behaviour in Seismic Steel Structures Design

Ras

Boumechra

2014

Arab J Sci Eng

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For a seismic increased protection, new technologies have been developed, among these technologies there is the "passive energy dissipation devices". The absorption of the seismic input energy in the buildings and reducing its damage are the main objectives of these devices. This study will focus on the seismic design of structures with supplemental fluid viscous dampers device. A 3D numerical investigation is done considering the seismic response of a twelvestorey steel building moment frame with diagonal FVD that have nonlinear force versus velocity behaviour. Fast nonlinear analysis of Boumerdes earthquake (Algeria, May 2003) is considered for analysis and calculation using SAP2000 software and comparisons between linear-, nonlinear-damped and unbraced structures are shown in a tabulated and graphical format. The results of the various alternatives studied were discussed and the conclusions showed the important contribution of nonlinear FVD to improve the dissipative capacities of the structure without increasing its stiffness in a significant way which contributes to reduce the quantity of steel necessary for its general stability.

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Section: Modelling Of System With Fvdmentioning

confidence: 94%

“…By adjusting the two exponential coefficients, the GMM is able to simulate the more complicated viscoelastic behaviour of fluid dampers. Kang and Tagawa [8] used a vibration control system based on a seesaw mechanism with fluid viscous dampers. It comprises three parts: brace, seesaw and FVD.…”

Section: Introductionmentioning

confidence: 99%

Study of Nonlinear Fluid Viscous Dampers Behaviour in Seismic Steel Structures Design

Ras

Boumechra

2014

Arab J Sci Eng

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“…Kang and Tagawa [19] introduced a new type of vibration control system based on the seesaw mechanism with liquid viscous dampers. The proposed vibration control system consists of three parts: seesaw, brace and liquid viscous dampers.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Curved-TADAS Damper on Seismic Response of Moment Resisting Steel Frame

Shojaeifar

Maleki

Lotfollahi-Yaghin

2020

IJE

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In this study, the performance of triangular added damping and stiffness (TADAS) dampers combined with curved dampers (Curved-TADAS damper) is evaluated in moment resisting steel frame (MRSF). These dampers are passive and install in the beam-column connection region. Variable parameters of this study involve the width of curved damper (50, 75 and 100 mm), the thickness of TADAS damper (5 and 10 mm) and the number of TADAS damper (2, 4 and 6). Evaluation of MRSF was performed using the finite element method by ABAQUS. Two different experimental studies were used in order to evaluate the validity of the numerical simulation method and a suitable agreement was obtained. The response of the frames in different modes was compared with parameters such as energy dissipation, strength, stiffness, hysteresis damping ratio, and ductility. In the end, the performance of the proposed dampers was compared with the curved damper. The results show that Curved-TADAS dampers reduce the structural responses to seismic loading and prevent structural failure due to the dissipation of a large amount of seismic input energy. The function of these systems is such that, by performing special deformations, they absorb and deplete a large amount of earthquake input energy of the structure.

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“…So, in order to dissipate earthquake energy, the structure should experience inelastic behavior [8][9][10][11][12][13][14][15]. Extensive research has been performed to increase the ductility of concentric braces [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. In addition, some studies have been performed on using circular elements in steel bracing systems in order to increase the ductility.…”

Section: Introductionmentioning

confidence: 99%

Seismic performance investigation of new lateral bracing system called “OGrid-H”

2019

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This paper treats a different type of bracing by using circular bracing elements called OGrid-H. The goal of using circular shape is to obtain more ductility, high performance and appropriate stiffness and limit the buckling of braces, and at the same time in order to realize a solution that is interesting from the architectural point of view. In order to study the seismic behavior of OGrid-H members, a numerical finite element analysis of 9 OGrid-H models with different section members is established through ABAQUS finite element software subjected to cyclic loadings, which failure modes, load capacity, nonlinear displacement, ductility factor, vibration period, stiffness and energy absorption of models is obtained, and the comparison between outputs of models leads to obtaining the model with the best sections which have higher performance than the others. In order to investigate the OGrid-H connections, five changes are applied on connections, which the results showed that three changes had the greatest influence, which caused to increase load bearing as the amount of 22.88%.

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Seismic performance of steel structures with seesaw energy dissipation system using fluid viscous dampers

Cited by 67 publications

References 26 publications

Study of Nonlinear Fluid Viscous Dampers Behaviour in Seismic Steel Structures Design

Study of Nonlinear Fluid Viscous Dampers Behaviour in Seismic Steel Structures Design

Performance Evaluation of Curved-TADAS Damper on Seismic Response of Moment Resisting Steel Frame

Seismic performance investigation of new lateral bracing system called “OGrid-H”

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