Optimal Location of Multiple Tuned Mass Dampers in Regular and Irregular Tall Steel Buildings Plan

Khazaei, Mohsen; Vahdani, Reza; Kheyroddin, Ali

doi:10.1155/2020/9072637

Cited by 15 publications

(7 citation statements)

References 26 publications

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“…Jin et al (2016) minimized the response of the beam by applying inerter-based passive vibration control systems and found that their performance was better than traditional dynamic vibration strategies. Khazaei et al (2020) studied the e ciency of vibration control in regular and irregular high-rise steel structures with multiple tuned mass dampers (MTMDs) using a passive approach. The results showed that the success of MTMDs depends on the symmetry of the TMDs relative to the center of mass of the structures.…”

Section: Passive Approachesmentioning

confidence: 99%

Vibration control of steel frames with setback irregularities equipped with semi-active tuned mass dampers

Hosseini

Jahangiri

Massumi

2021

Preprint

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Vibration control of structures has been a focus of research worldwide. Although, several studies have examined the efficiency of semi-active tuned mass dampers (SATMDs) to control the seismic vibration of structures, only a few have focused on the influence of SATMDs on steel moment resisting frames in irregular structures having setbacks. In the current investigation, the use of SATMDs for the vibration control of structures with setbacks subjected to earthquake records has been evaluated. In order to assess the nonlinear seismic performance of buildings with setbacks, the inter-story drift ratio, story displacement, and base shear factor were examined as engineering demand parameters. The results reveal that the use of SATMDs reduced the seismic response of regular and irregular frames with setbacks. However, the use of these control devices requires more attention for structures with significant setbacks because, in some cases, the response of a structure with SATMDs can be greater than of an uncontrolled structure. The investigations also showed that placement of the control systems at the highest (top) level of the structure significantly reduced the structural vibration of both types of structure.

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Section: Passive Approachesmentioning

confidence: 99%

Vibration control of steel frames with setback irregularities equipped with semi-active tuned mass dampers

Hosseini

Jahangiri

Massumi

2021

Preprint

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“…In addition, [20] and [21] also recommended that the vibration control of multiple TMDs is more efficient when the dampers are strategically placed to the structural floors with the maximum amplitude in the mode shapes accordingly. [22] and [23] concluded from their study on the optimization of multiple TMD that by increasing the number of TMDs, the frequency ratio bandwidth becomes wider and decreases equivalent damping ratio subsequently.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental Analysis of the Viscous Tuned Mass Damper for the Attenuation of Structural Responses

et al. 2021

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This paper presents a systematic experimental investigation on the performance of a Multiple Tuned Mass Dampers (MTMDs) attached to a structural system under dynamic load excitation. A Modal Experimental Analysis (EMA) of a three-story structural frame equipped with a viscous damper system was carried out through a series of shaking table tests to evaluate the performance and verify the analysis approach. Each of the TMDs consists of a mass attached to a structural floor via Thermoplastic Polyurethane (TPU) viscous bearing. Initially, the TMD was designed solely to control single mode vibration and then the mechanism is extended for the application of controlling multimode responses. The experiment demonstrated that the proposed viscous dampers exhibit good performance in reducing the response of structures under dynamic loads, and able to control both fundamental and higher vibration modes of a Multiple Degree of Freedom (MDOF) primary system effectively. It was also evident that the attachment of the air dashpot dampers to each of TMDs lead to better efficiency on controlling the amplification of the damper mass and significantly contribute to better structural modal tuning.

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“…e numerical evaluations using different load patterns showed remarkable improvement compared with passive and nonmoving devices. In control systems, accurate computing with the lowest computational cost is an important advantage [22].…”

Section: Introductionmentioning

confidence: 99%

Study on Passive and Semiactive Control Systems in Structures under Near- and Far-Field Earthquakes

Zamanian

Kheyroddin

Mortezaei

2022

Shock and Vibration

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The construction demand for irregular structures is increasing due to the population growth of cities, limited construction areas, and the aesthetics of structures. Lack of proper understanding on the dynamic behavior of these structures during seismic events can lead to local and global failures on them. In order to investigate this issue, we used a regular 10-story structure with three different stiffness irregularity cases along the elevation. Irregularities are considered in three positions: the lower half of the structure height, the lowest story, and the middle story. In this study, to reduce the damage and mitigate the seismic response of the structure, three control systems are proposed including a magnetorheological (MR) damper with semiactive fuzzy controller as the semiactive control system, a Tuned Mass Damper (TMD) as the passive control system, and the simultaneous use of them. Based on the numerical analyses under near- and far-field ground motions, the residual plastic deformations are significantly reduced by the simultaneous use of MR damper and TMD, while each of these dampers alone performs poorly in some cases. The results show that if these two dampers are used together, a more promising control system with robust performance against changes in system parameters can be achieved.

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Optimal Location of Multiple Tuned Mass Dampers in Regular and Irregular Tall Steel Buildings Plan

Cited by 15 publications

References 26 publications

Vibration control of steel frames with setback irregularities equipped with semi-active tuned mass dampers

Vibration control of steel frames with setback irregularities equipped with semi-active tuned mass dampers

Experimental Analysis of the Viscous Tuned Mass Damper for the Attenuation of Structural Responses

Study on Passive and Semiactive Control Systems in Structures under Near- and Far-Field Earthquakes

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