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The authors acknowledge the grant PID2021-127627OB-I00 (Transport Infrastructures subjected to dynamic loading: assessment techniques for the sustainability,intelligent maintenance and comfort) funded by Ministerio de Ciencia e Innovacin, Agencia Estatal de Investigacion and 10.13039/501100011033 FEDER, European Union. Christian Gallegos-Calderon expresses his gratitude to the SENESCYT-Ecuador for the financial support

Analysis of institutional authors

Soria, J MCorresponding AuthorRenedo, C M CAuthorGallegos-Calderon, CAuthor

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September 22, 2024
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Exploring Semi-Active TMD Performance on Lively Footbridges Considering Human-Structure Interaction in Vertical Direction

Publicated to:International Journal Of Structural Stability And Dynamics. - 2024-09-09 (), DOI: 10.1142/s0219455425400103

Authors: Soria JM; Jiménez-Alonso JF; Renedo CMC; Gallegos-Calderón C

Affiliations

Univ Politecn Madrid, Dept Continuum Mech & Theory Struct, ETSICCP, Madrid 28040, Spain - Author

Abstract

Human-Structure Interaction (HSI) can significantly influence the dynamic characteristics of pedestrian footbridges, particularly those distinguished by their lightness and slenderness. This study examines the performance of Tuned Mass Dampers (TMD) and Semi-Active Tuned Mass Dampers (STMD) on pedestrian footbridges when their modal parameters change due to the influence of HSI. For this purpose, a 30 m long simply-supported footbridge with linear mass values ranging from 200kg/m to 2000kg/m and a fundamental frequency varying from 1Hz to 5Hz has been considered. In addition, several pedestrian streams with different pedestrian densities have been used to assess the structural dynamic response. The analysis highlights that structural lightness and slenderness are critical factors in determining whether the incorporation of an HSI model is relevant to accurately predict the dynamic performance of the structure. The findings indicate that while TMDs can become ineffective due to shifts in natural frequencies caused by HSI, resulting in a degradation of vibration reduction from 70-75% to 40-45%, STMDs demonstrate a robust capability to adjust and cope with these frequency changes, maintaining a higher average vibration reduction of around 55-60%. Consequently, STMDs emerge as a necessary solution for very slender structures where HSI significantly alters the global frequency response. This study highlights the importance of considering HSI in the design and implementation of damping solutions to ensure optimal functionality and user comfort on lightweight pedestrian bridges.

Keywords

Active tuned mass damperDesignDynamic behaviorDynamic behaviorsDynamic responseFootbridgesHuman-structure interactionIdentificationLively footbridgesModePerformanceSemi-activeTmd techniqueTmd techniquesTuned mass damper techniqueTuned mass dampersVertical directionVibration analysisVibration controlVibration reductionsVibration serviceability

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal International Journal Of Structural Stability And Dynamics due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Building and Construction.

Impact and social visibility

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/87385/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 76
  • Downloads: 35

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (SORIA HERRERA, JOSE MANUEL) and Last Author (GALLEGOS CALDERÓN, CHRISTIAN).

the author responsible for correspondence tasks has been SORIA HERRERA, JOSE MANUEL.