Random Seismic Response Analysis of Adjacent Buildings Coupled With Non-Linear Hysteretic Dampers

Ni, Yiqing; Ko, J. M.; Ying, Z. G.

doi:10.1006/jsvi.2001.3679

Cited by 103 publications

(50 citation statements)

References 16 publications

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“…A variety of damping devices, such as viscous dampers [1][2][3][4], friction dampers [5][6][7], hysteretic dampers [8][9][10][11] and viscoelastic dampers [12][13][14][15][16][17], interconnecting adjacent buildings have been widely studied to prevent the pounding for engineering applications. Among these types of damping devices, the viscoelastic dampers can be used to dissipate energy at all deformation levels.…”

Section: Introductionmentioning

confidence: 99%

Optimal Vibration Control of Adjacent Building Structures Interconnected by Viscoelastic Dampers

Liu¹,

Wang²,

Chiu³

2017

JCEA

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Abstract:The objective of this paper is to investigate the dynamic characteristics of two adjacent building structures interconnected by viscoelastic dampers under seismic excitations. The computational procedure for an analytical model including the system model formulation, complex modal analysis and seismic time history analysis is presented for this purpose. A numerical example is also provided to illustrate the analytical model. The complex modal analysis is conducted to determine the optimal damping ratio, the optimal damper stiffness and the optimal damper damping of the viscoelastic dampers for each mode of the system. For the damper stiffness and damping with optimal values, the responses can be categorized into underdamped and critically damped vibrations. Furthermore, compared to the viscous dampers with only the energy dissipation mechanism, the viscoelastic dampers with both the energy dissipation and redistribution mechanisms are more effective for increasing the damping ratio of the system. The seismic time history analysis is conducted to assess the effectiveness of the viscoelastic dampers for vibration control. Based on the optimal damping ratio, the optimal damper stiffness, the optimal damper damping of the viscoelastic dampers for a certain mode of the system, and the viscoelastic dampers can be used to effectively suppress the root-mean-square responses as well as the peak responses of the two adjacent buildings.

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Section: Introductionmentioning

confidence: 99%

Optimal Vibration Control of Adjacent Building Structures Interconnected by Viscoelastic Dampers

Liu¹,

Wang²,

Chiu³

2017

JCEA

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“…Some theoretical studies exist in which structural control is effectively applied to adjacent structures by means of passive viscoelastic [2,3] or hysteretic [4][5][6][7] devices, or using semiactive or active devices [8][9][10]. Concerning the use of semiactive devices, [8,10] deals with aspects related to the design of an appropriate control law comparing through numerical models different control strategies, while in [9] the effectiveness of MR damper is examined for seismic response mitigation under coupled building control scheme, involving passive and semiactive control strategies.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis and Models of Adjacent Structures Controlled by Magnetorheological Dampers

Basili

Angelis

2017

Shock and Vibration

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This paper deals with the vibration analysis of adjacent structures controlled by a magnetorheological (MR) damper and with the discussion of a numerical procedure for identification and definition of a reliable finite element model. The paper describes an extensive experimental campaign investigating the dynamic response, through shaking table tests, of a tridimensional four-story structure and a two-story structure connected by an MR device. Several base excitations and intensity levels are considered. The structures were tested in nonconnected and connected configuration, with the MR damper operating in passive or semiactive mode. Moreover, the paper illustrates a procedure for the structural identification and the definition of a reliable numerical model valid for adjacent structures connected by MR dampers. The procedure is applied in the original nonconnected configuration, which represents a linear system, and then in the connected configuration, which represents a nonlinear system due to the MR damper. In the end, the updated finite element model is reliable and suitable for all the considered configurations and the mass, damping, and stiffness matrices are derived. The experimental and numerical responses are compared and the results confirm the effectiveness of the identification procedure and the validation of the finite element model.

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“…In semi-active control methods, Dyke et al (1996), Ni, Ko, and Ying (2001) and Yoshida and Dyke (2004) investigated the effectiveness of magnetorheological (MR) dampers for civil engineering structures. Ok, Song, and Park (2009) developed an optimal design of semi-active dampers using multi-objective optimization.…”

Section: Introductionmentioning

confidence: 99%

Investigating the optimal passive and active vibration controls of adjacent buildings based on performance indices using genetic algorithms

Hadi

2014

Engineering Optimization

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This study proposes the optimal passive and active damper parameters for achieving the best results in seismic response mitigation of coupled buildings connected to each other by dampers. The optimisation to minimise the H2 and H-norms in the performance indices is carried out by genetic algorithms (GAs). The final passive and active damper parameters are checked for adjacent buildings connected to each other under El Centro NS 1940 and Kobe NS 1995 excitations. Using real coded GA in H-norm, the optimal controller gain is obtained by different combinations of the measurement as the feedback for designing the control force between buildings. The propsed method is more effective than other metaheuristic methods and more feasible, although the contol force increased. The results ifn the active control system show that the response of adjacent buildings is reduced in an efficient manner. 1. Please check these proofs carefully. It is the responsibility of the corresponding author to check these and approve or amend them. A second proof is not normally provided. Taylor & Francis cannot be held responsible for uncorrected errors, even if introduced during the production process. Once your corrections have been added to the article, it will be considered ready for publication.Please limit changes at this stage to the correction of errors. You should not make insignificant changes, improve prose style, add new material, or delete existing material at this stage. Making a large number of small, non-essential corrections can lead to errors being introduced. We therefore reserve the right not to make such corrections.For detailed guidance on how to check your proofs, please see http://journalauthors.tandf.co.uk/production/checkingproofs.asp. The reference "Hadi and Arfiadi (2011)" is cited in the text but is not listed in the reference list. Please either delete in-text citation or provide full reference details following journal style. Please review the AQ3The spelling of Name for "Bektas and Nigdeli (2011)" has been changed to Bekdas and Nigdeli (2011) to match the entry in the reference list. Please confirm that this is correct and provide revisions if needed. AQ4The reference "Pourzeynali et al. (2006)" is cited in Tables 8 and 9 but is not listed in the reference list. Please either delete in-text citation or provide full reference details following journal style. How to make corrections to your proofs using Adobe AcrobatTaylor & Francis now offer you a choice of options to help you make corrections to your proofs. Your PDF proof file has been enabled so that you can edit the proof directly using Adobe Acrobat. This is the simplest and best way for you to ensure that your corrections will be incorporated. If you wish to do this, please follow these instructions:1. Save the file to your hard disk.2. Check which version of Adobe Acrobat you have on your computer. You can do this by clicking on the "Help" tab, and then "About."If Adobe Reader is not installed, you can get the latest version free from http://get.a...

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Random Seismic Response Analysis of Adjacent Buildings Coupled With Non-Linear Hysteretic Dampers

Cited by 103 publications

References 16 publications

Optimal Vibration Control of Adjacent Building Structures Interconnected by Viscoelastic Dampers

Optimal Vibration Control of Adjacent Building Structures Interconnected by Viscoelastic Dampers

Vibration Analysis and Models of Adjacent Structures Controlled by Magnetorheological Dampers

Investigating the optimal passive and active vibration controls of adjacent buildings based on performance indices using genetic algorithms

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