Optimal placement of dampers for passive response control

Singh, M. P.; Moreschi, Luis M.

doi:10.1002/eqe.132

Cited by 232 publications

(66 citation statements)

References 19 publications

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“…Viscous damper is widely used in high-rise buildings, bridges, seismic retrofitting of building structures, vibration resistance of industrial pipeline equipment, and military industry [16,[18][19][20][21].…”

Section: Viscous Dampersmentioning

confidence: 99%

Seismic Protection of Cabinet Stored Cultural Relics with Silicone Dampers

Ning

Bai

Yang

et al. 2018

Shock and Vibration

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Cultural relics are precious properties of all humankind, the damage of which is nonresilient. In previous earthquakes, stored cultural relics have shown poor seismic performance, so effective seismic methods are urgently needed. However, due to various restrictions, traditional damping methods are not suitable for the cultural relics stored in the Palace Museum. An efficient damping method, composed of silicone damper and connecting elements, is proposed to protect these stored cultural relics. This novel damping device is very convenient to install and no change or move for the original structures is needed. It is suitable for various kinds of new and existing relic cabinets. In order to validate the effectiveness of this novel damping method, both numerical simulation and shaking table tests are carried out. Results show that this method can effectively enhance the seismic performance of relic cabinet itself and the internal cultural relics. Relic cabinets with damping devices deform significantly less than noncontrol cabinets while the inside relics also have less sliding or overturning. Overall, a damping method, designed for seismic protection of cabinet stored cultural relics, is proposed and its effectiveness has been successfully demonstrated.

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Section: Viscous Dampersmentioning

confidence: 99%

Seismic Protection of Cabinet Stored Cultural Relics with Silicone Dampers

Ning

Bai

Yang

et al. 2018

Shock and Vibration

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“…Table V presents root mean squared (RMS) responses of the model structure obtained from the frequency domain analyses before and after the dampers are installed. The power spectral density function of the input ground acceleration [6], which is the Kanai-Tajimi spectrum multiplied by the transfer function of the foundation of the structure, is as follows:…”

Section: Comparison Of the E Ect Of Change In Assigned Modal Propertiesmentioning

confidence: 99%

“…Takewaki et al [4] and Singh and Moreschi [5] used a gradient-based approach to obtain optimum distribution of damping devices. Recently, Singh and Moreschi [6] used a genetic algorithm to determine optimal size and location of viscous and viscoelastic dampers.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of viscoelastic dampers using eigenvalue assignment

Lee

Son

Kim

et al. 2003

Earthq Engng Struct Dyn

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SUMMARYIn this study a procedure for determining the optimum size and location of viscoelastic dampers is proposed using the eigenvalue assignment technique. Natural frequencies and modal damping ratios, required to realize a given target response, are determined ÿrst by the convex model. Then the desired dynamic structural properties are realized by optimally distributing the damping and sti ness coecients of viscoelastic dampers using non-linear programming based on the gradient of eigenvalues. This optimization method provides information on the optimal location as well as the magnitude of the damper parameters. The proposed procedure is applied to the retroÿt of a 10-story shear frame, and to a three-dimensional structure with an asymmetric plan. The analysis results conÿrm that the responses of model structures retroÿtted by the proposed method correspond well with the given target response.

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“…Many of them primarily address the problem of distributing a given total added damping to achieve the best performance (minimize damage measures). Some of the works in this direction presented very efficient methods [4][5][6][7][8][9][10][11][12]. Note that in these works the total added damping is predetermined.…”

Section: Introductionmentioning

confidence: 99%

Seismic Loss Optimization of Frame Buildings Using Viscous Dampers

Puthanpurayil¹,

Lavan²,

Dhakal³

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Abstract. The effectiveness of control strategies in achieving the objectives of a performancebased-design is well accepted in the earthquake engineering community. Consequently, various methods have been proposed for optimal design of dampers and their distribution along the building height. Most of the formulated methods concentrate mainly on reducing the responses with no explicit consideration of their long-term economic impact. In this study, an optimization problem is formulated for optimally distributing viscous dampers by minimizing the initial cost subject to a constraint on the total expected seismic loss. An intensity based assessment is used for the computation of the total expected loss. A generic Sequential LinearProgramming procedure is employed to solve the formulated optimization problem. Implementation scheme of the optimization procedure is outlined in detail. The efficacy of the proposed procedure is illustrated by applying it on a four story reinforced concrete frame. It has been shown that the optimization procedure results in the optimal quantity and distribution of viscous dampers along the height of the case study building.

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Optimal placement of dampers for passive response control

Cited by 232 publications

References 19 publications

Seismic Protection of Cabinet Stored Cultural Relics with Silicone Dampers

Seismic Protection of Cabinet Stored Cultural Relics with Silicone Dampers

Optimal design of viscoelastic dampers using eigenvalue assignment

Seismic Loss Optimization of Frame Buildings Using Viscous Dampers

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