Analysis of efficiency of passive dampers in multistorey buildings

Aydın, Ersin; Öztürk, Baki; Dutkiewicz, Maciej

doi:10.1016/j.jsv.2018.09.031

Cited by 40 publications

(23 citation statements)

References 32 publications

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“…produces the list of interbuilding positions p (1) =σ (1) π (1) = [5] where the dampers are allocated. To obtain the list of damping coefficients, we consider the total number of allocated interstory dampersn = 4 and the cumulative values N 0 = 0, N 1 = 1, and extract the sublistc (1)…”

Section: Optimization Variables and Associated Multibuilding Modelmentioning

confidence: 99%

“…That kind of passive energy-dissipation systems is formed by a set of damping elements installed at suitable locations of the structure. DDSs are simple, reliable and robust and, when properly designed, are able to produce a remarkable reduction of the overall seismic vibrational response [3][4][5]. Broadly speaking, three main issues related to the damping elements have to be addressed in DDS design-(i) technical setup determination, (ii) allocation and (iii) tuning.…”

Section: Introductionmentioning

confidence: 99%

“…The general goal of the paper is to design high-performance DDSs for seismic protection of multibuilding systems (MBSs) formed by a row of m adjacent buildings as the one schematically displayed in Figure 1. There certainly exists a large number of works on DDS design for single buildings in the literature; some recent discussions on the topic can be found in References [5][6][7]15,16]. For the particular case of m = 2 adjacent buildings, the number of references is remarkably smaller but yet significant.…”

Section: Introductionmentioning

confidence: 99%

“…The DDS can also include two types of building damping configurations of particular interest-(i) nonactuated buildings, which do not contain any interstory damper and (ii) linked buildings, which are linked to all their adjacent buildings by means of interbuilding dampers. For instance, in the MBS presented in Figure 1, buildings B (2) and B (3) are nonactuated; buildings B (1) , B (2) and B (3) are linked; B (4) is only partially linked and B (5) is unlinked. It should be observed that the DDS implementation can be carried out without internal modifications of nonactuated buildings, which can be an important factor in retrofitting.…”

Section: Introductionmentioning

confidence: 99%

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Distributed Passive Actuation Schemes for Seismic Protection of Multibuilding Systems

et al. 2020

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In this paper, we investigate the design of distributed damping systems (DDSs) for the overall seismic protection of multiple adjacent buildings. The considered DDSs contain interstory dampers implemented inside the buildings and also interbuilding damping links. The design objectives include mitigating the buildings seismic response by reducing the interstory-drift and story-acceleration peak-values and producing small interbuilding approachings to decrease the risk of interbuilding collisions. Designing high-performance DDS configurations requires determining convenient damper positions and computing proper values for the damper parameters. That allocation-tuning optimization problem can pose serious computational difficulties for large-scale multibuilding systems. The design methodology proposed in this work—(i) is based on an effective matrix formulation of the damped multibuilding system; (ii) follows an H ∞ approach to define an objective function with fast-evaluation characteristics; (iii) exploits the computational advantages of the current state-of-the-art genetic algorithm solvers, including the usage of hybrid discrete-continuous optimization and parallel computing; and (iv) allows setting actuation schemes of particular interest such as full-linked configurations or nonactuated buildings. To illustrate the main features of the presented methodology, we consider a system of five adjacent multistory buildings and design three full-linked DDS configurations with a different number of actuated buildings. The obtained results confirm the flexibility and effectiveness of the proposed design approach and demonstrate the high-performance characteristics of the devised DDS configurations.

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Section: Optimization Variables and Associated Multibuilding Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Distributed Passive Actuation Schemes for Seismic Protection of Multibuilding Systems

et al. 2020

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“…Bogdanovic and Rakicevic (2019) presented an optimal damper placement procedure in a 3D 5story steel frame structure by using combined fitness function. Aydin et al (2019) investigated optimum design and efficiency of VDs for earthquake-effected structures taking into consideration different mode behaviors. De Domenico et al 2019successfully summarized the organization of design strategies of fluid VDs in their study.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design and Distribution of Viscous Dampers for Shear Building Structures Under Seismic Excitations

Çetin

Aydın

Öztürk

2019

Front. Built Environ.

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Viscous dampers (VDs) are effective and widely used passive devices for the protection of civil structures, provided that appropriate design is carried out. For this purpose, optimal design and optimum distribution of VDs method are presented for a shear building under the critical excitation by using random vibration theory in the frequency domain. In the optimization, by using Differential Evolution (DE) algorithm and the top floor displacement are evaluated as objective functions taking into consideration upper and lower limits of VDs damping coefficients, so that optimal damper placement and properties of the shear building can be determined. In this design, the VDs-shear building system is tested under the three different ground motions being compared to some methods in the literature and uniformly distributed VDs placed at each story. It is shown that the results of the study are both compatible and very successful in reducing the response of the structure under the different ground motions.

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Application of Friction Pendulum Bearings in Multistory Buildings

Gołębiowska

Dutkiewicz

2020

Springer Proceedings in Physics

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Analysis of efficiency of passive dampers in multistorey buildings

Cited by 40 publications

References 32 publications

Distributed Passive Actuation Schemes for Seismic Protection of Multibuilding Systems

Distributed Passive Actuation Schemes for Seismic Protection of Multibuilding Systems

Optimal Design and Distribution of Viscous Dampers for Shear Building Structures Under Seismic Excitations

Application of Friction Pendulum Bearings in Multistory Buildings

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