Proper placement of energy absorbing devices for reduction of wind-induced vibration caused in high-rise buildings

Furuya, Osamu; Hamazaki, Hironori; Fujita, Satoshi

doi:10.1016/s0167-6105(98)00085-3

Cited by 14 publications

(6 citation statements)

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“…The GA is an optimization technique simulating the evolutionary process based on the principles of natural biological evolution where the stronger individuals are likely to be winners in a competing environment. For the past few years, the GA introduced by Holland [29] has been successfully applied to a wide range of engineering applications and proved to be very effective in solving such problems, for its features of evolutionary, multi-point, direct and parallel searching [30][31][32].…”

Section: Integrated Design By Genetic Algorithmmentioning

confidence: 99%

Integrated optimum design of viscoelastically damped structural systems

Park

Koh

Hahm

2004

Engineering Structures

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Section: Integrated Design By Genetic Algorithmmentioning

confidence: 99%

Integrated optimum design of viscoelastically damped structural systems

Park

Koh

Hahm

2004

Engineering Structures

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“…After the search direction s k has been determined, the maximum permissible step k along this direction must be determined such that no constraints are violated. The Lagrange multipliers associated with the constraint of Equation (14) can be obtained from the following equation:…”

Section: Optimization Algorithmmentioning

confidence: 99%

“…There have also been some interesting studies on optimal placement of visco-elastic dampers in building structures exposed to seismic and wind excitations [7][8][9][10][11][12][13][14]. Zhang and Soong [15] proposed a sequential optimization approach based on a controllability index for the optimal placement of devices.…”

Section: Introductionmentioning

confidence: 99%

Optimal seismic response control with dampers

Singh¹,

Moreschi²

2001

Earthq Engng Struct Dyn

137

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The usefulness of energy dissipation devices to reduce seismic response of structures is now well established. For a given installation of such devices in a structure, one can easily compute the level of response reduction achieved. However, the solution of an inverse problem of how many devices one would need to achieve a desired level of response reduction in a structure, or to achieve an expected level of performance from a structural system, is not quite as straightforward and well formulated. In this paper, a method is presented to obtain the amount of viscous and visco-elastic damping one would need to obtain a desired level of response reduction. The needed supplemental devices are also optimally distributed in the structure to achieve the best performance. To solve the optimal problem, a gradient-based optimization approach is used. To illustrate the application, numerical results for a 24-storey building structure are presented where the objective is to achieve the maximum reduction in the performance functions expressed in terms of the inter-storey drifts, base shear, or oor accelerations. Other forms of performance functions can also be treated similarly.

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“…[1][2][3][4] Then, more and more researchers contributed to this topic and presented papers in related journals. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] So far, several methods, including optimal control theory, sequential search algorithm (e.g. simplied sequential search algorithm, SSSA), steepest direction search algorithm, and genetic algorithm, have been proposed for allocating viscous dampers.…”

Section: Introductionmentioning

confidence: 99%

A simple approach for optimal allocation of dampers in nonsymmetrical 3D multi-storey structures

Leu

Chang

2014

Int. J. Str. Stab. Dyn.

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A new simple approach is proposed to search for the optimal placement of dampers in nonsymmetrical three-dimensional (3D) structures. Dampers are placed uniformly and initially at each storey of two selected bays of the bare structures and the time-history seismic analysis is performed. The maximal inter-storey drift ratio is chosen as the performance index. Then the inter-storey drift ratio is checked for the locations where dampers were added. The damper in the location with the minimal inter-storey drift ratio is moved to the location having the maximal inter-storey drift ratio. This process is repeated until the prescribed stop criterion is met. Both linear and nonlinear viscous dampers are used in this study. The damping coe±cient of added dampers for the initial damper placement is determined by setting the maximal interstorey drift ratio of the whole structure equal to a certain value when a ground motion is applied. In the proposed relocation process, the maximal inter-storey drift ratio will be reduced signi¯cantly. Three examples, including two 10-storey and one 20-storey 3D nonsymmetrical structures, are used to demonstrate the e±ciency and accuracy of the proposed approach. The results are compared with those obtained using the simpli¯ed sequential search algorithm (SSSA). It is found that the proposed approach requires fewer number of time-history analysis than that using the SSSA while their accuracy is comparable.

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Proper placement of energy absorbing devices for reduction of wind-induced vibration caused in high-rise buildings

Cited by 14 publications

References 0 publications

Integrated optimum design of viscoelastically damped structural systems

Integrated optimum design of viscoelastically damped structural systems

Optimal seismic response control with dampers

A simple approach for optimal allocation of dampers in nonsymmetrical 3D multi-storey structures

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