Motion-Based Design of Active Tuned Mass Dampers to Control Pedestrian-Induced Vibrations in Footbridges under Uncertainty Conditions

Jiménez Alonso, Javier Fernando and Soria Herrera, José Manuel and Martín de la Concha Renedo, Carlos and Guillén Gonzalez, Francisco (2020). Motion-Based Design of Active Tuned Mass Dampers to Control Pedestrian-Induced Vibrations in Footbridges under Uncertainty Conditions. In: "EURODYN 2020 - XI International Conference on Structural Dynamics", 23-26 November 2020, Athens, Greece. ISBN 978-618-85072-2-7 | 978-618-85072-0-3. pp. 1844-1853.

Description

Title: Motion-Based Design of Active Tuned Mass Dampers to Control Pedestrian-Induced Vibrations in Footbridges under Uncertainty Conditions
Author/s:
  • Jiménez Alonso, Javier Fernando
  • Soria Herrera, José Manuel
  • Martín de la Concha Renedo, Carlos
  • Guillén Gonzalez, Francisco
Item Type: Presentation at Congress or Conference (Other)
Event Title: EURODYN 2020 - XI International Conference on Structural Dynamics
Event Dates: 23-26 November 2020
Event Location: Athens, Greece
Title of Book: Proceedings of the XI International Conference on Structural Dynamics
Date: September 2020
ISBN: 978-618-85072-2-7 | 978-618-85072-0-3
Volume: 1
Subjects:
Freetext Keywords: Motion-Based Design, Human-Induced Vibrations, Structural Control, Active Tuned Mass Dampers, Footbridges, Uncertainty Conditions
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Mecánica de Medios Continuos y Teoría de Estructuras
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Two key aspect must be considered for the design of modern footbridges: (i) their sensitivity to human-induced vibrations; and (ii) the influence of the variation of the operational and environmental conditions on their modal properties. One possible option, to guarantee an adequate behavior of these structures under both conditioning factors, is the installation of a control system. Among the different systems, active damping devices have shown a great effectiveness when they are used to control the dynamic response of civil engineering structures under uncertainty conditions. Different design algorithms have been proposed to guarantee that structures, controlled by these damping devices, meet the design requirements without compromising the budget. Among these proposals, the motion-based design method has shown a high performance when it has been implemented to design passive damping devices for foot-bridges under uncertainty conditions. Herein, this design method has been adapted and further implemented for the robust optimum design of active tuned mass dampers when they are em-ployed to control the human-induced vibrations in slender footbridges. According to this method, the design problem can be transformed into two coupled sub-problems: (i) a multi-objective optimization sub-problem; and (ii) a reliability analysis sub-problem. Thus, the main objective is to find the parameters of the active damping device which guarantee an adequate comfort level without compromising its cost. The compliance of this vibration serviceability limit state is computed via a reliability index (related to the probability of failure), which takes into account the effect of the variation of the operational and environmental conditions on the modal properties of the structure.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainRTI2018-094945-B-C21UnspecifiedUnspecifiedMonitorización de la salud estructural autoabastecida, mediante refuerzos inteligentes de nanocompuesto
Government of SpainRTI2018-099639-B-I00SEED-SDUnspecifiedMejora de la eficiencia estructural de puentes sometidos a acciones dinámicas: integración de amortiguadores inteligentes

More information

Item ID: 66078
DC Identifier: https://oa.upm.es/66078/
OAI Identifier: oai:oa.upm.es:66078
Official URL: https://eurodyn2020.org/
Deposited by: Memoria Investigacion
Deposited on: 12 Feb 2021 14:43
Last Modified: 12 Feb 2021 14:43
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