Studies for controlling human-induced vibration of the Pedro e Inês footbridge, Portugal. Part 2: Implementation of tuned mass dampers

Caetano, Elsa; Cunha, Álvaro; Moutinho, Carlos

doi:10.1016/j.engstruct.2009.12.033

Cited by 119 publications

(83 citation statements)

References 1 publication

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“…Their main goal was to investigate the variation of modal parameters induced by temperature and pedestrian traffic as well as to develop a methodology for damage detection being able to cope with these variations. Caetano et al (2010) reported about the vibration monitoring of a footbridge for assessing the performance of tuned mass dampers. The serviceability of the footbridge was rated on the basis of peak daily accelerations recorded over the period of a year.…”

Section: Introductionmentioning

confidence: 99%

Vibration monitoring of a footbridge with a wireless sensor network

Feltrin

Jalsan

Flouri

2013

Journal of Vibration and Control

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Monitoring the vibration performance of structures for serviceability assessment purposes usually requires a deployment of several weeks or months to collect a dataset allowing a reliable assessment. Since for this type of medium term deployments installation costs are a key factor, wireless monitoring with its fast deployment has an advantage over wired monitoring systems. This paper describes a deployment of a wireless monitoring system on a timber footbridge. The goal of the monitoring was to provide information about vibration amplitudes during operation and to track changes of relevant natural frequencies with the temperature. Accelerations were permanently recorded and the acquired data was processed in the nodes to compute the envelope of the vibration amplitude and the dominant peaks of the Fourier spectrum. The wireless monitoring system that was deployed for one year provided accurate data matching the requirements of vibration performance assessments. The deployment demonstrated that a wireless sensor network is a technically feasible and economically effective mean to monitor the vibration performance of a structure.

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Section: Introductionmentioning

confidence: 99%

Vibration monitoring of a footbridge with a wireless sensor network

Feltrin

Jalsan

Flouri

2013

Journal of Vibration and Control

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“…The lively behaviour of this footbridge was particularly critical for lateral vibrations associated to the fundamental lateral mode, which motivated a special concern with the design of the corresponding TMD [2]. In this case, assuming the validity of the formula developed by Dallard et al, it was possible to fix the number of pedestrians for which lock-in should not occur, which led to an estimate of damping that the control solution should introduce.…”

Section: Safety Checking Of Vibration Serviceability Limitsmentioning

confidence: 99%

Continuous Dynamic Monitoring of Bridges: Different Perspectives of Application

Cunha

Caetano

Moutinho

2013

AMR

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“…It is generally admitted that the over-sensitivity to dynamic excitation of cable bridges is associated with the very low structural damping in the global bridge modes (often below 1% and even less in the cable modes [Pacheco et al 1993]). The classical way of attenuating the global modes is the use of tuned mass dampers (at least one by critical mode) [Caetano et al 2010;Tubino and Piccardo 2015]. The active control of cable structures has also been considered; the application of active tendons to flutter control was considered numerically in [Yang and Giannopoulos 1979a;1979b] and experimental studies were pioneered in [Warnitchai et al 1993;Fujino and Susumpow 1994;.…”

Section: Introductionmentioning

confidence: 99%

An investigation of the active damping of suspension bridges

Preumont

Voltan

Sangiovanni

et al. 2015

Math. Mech. Compl. Sys.

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This paper explores the feasibility of active damping of suspension bridges with the addition of stay cables controlled by active tendons. An active tendon consists of a displacement actuator collocated with a force sensor monitoring the tension in the cable. The active tendons are controlled by decentralized integral force feedback (IFF). In the first part of the paper, the potential of the control strategy is evaluated on a numerical model of an existing footbridge; several configurations are investigated where the active cables connect the pylon to the deck or the deck to the catenary. The analysis confirms that it is possible to provide a set of targeted modes with a considerable amount of damping, reaching ξ = 15%. In the second part of the paper, the control strategy is demonstrated experimentally on a laboratory mock-up equipped with four control stay cables equipped with piezoelectric actuators. The experimental results confirm the excellent performance and robustness of the control system and the very good agreement with the predictions.

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Studies for controlling human-induced vibration of the Pedro e Inês footbridge, Portugal. Part 2: Implementation of tuned mass dampers

Cited by 119 publications

References 1 publication

Vibration monitoring of a footbridge with a wireless sensor network

Vibration monitoring of a footbridge with a wireless sensor network

Continuous Dynamic Monitoring of Bridges: Different Perspectives of Application

An investigation of the active damping of suspension bridges

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