dc.creator | Gallegos-Calderón, Christian | es |
dc.creator | Naranjo Pérez, Javier | es |
dc.creator | Renedo, Carlos M.C. | es |
dc.creator | Muñoz Díaz, Iván | es |
dc.date.accessioned | 2023-05-15T14:31:30Z | |
dc.date.available | 2023-05-15T14:31:30Z | |
dc.date.issued | 2023-08 | |
dc.identifier.citation | Gallegos-Calderón, C., Naranjo Pérez, J., Renedo, C.M.C. y Muñoz Díaz, I. (2023). A frequency-domain approach to model vertical crowd-structure interaction in lightweight footbridges. Journal of Sound and Vibration, 557 (117750). https://doi.org/10.1016/j.jsv.2023.117750. | |
dc.identifier.issn | 0022-460X | es |
dc.identifier.issn | 1095-8568 | es |
dc.identifier.uri | https://hdl.handle.net/11441/146034 | |
dc.description.abstract | Load models that account for Human-Structure Interaction (HSI) may be preferable to accurately predict the dynamic response of lightweight footbridges subjected to pedestrian actions. Representing each person within a crowd may not be practical in engineering design calculations as time-variant models with a large number of degrees of freedom have to be managed. In addition, high computational time may be required to achieve the steady-state response. In this sense, this paper proposes a novel approach to calculate the vertical steady-state response of footbridges from a time-invariant coupled crowd-structure system. Considering the model of the structure and a feedback model of the crowd, a total closed-loop Transfer Function (TF) of the coupled system is derived. Based on this frequency-domain interacting methodology, a step-by-step procedure is set to asses the vibration serviceability of lightweight footbridges due to harmonic excitations through simple algebraic operations. The proposal is used to study a Fibre Reinforced Polymer footbridge subjected to two streams of walking pedestrians. For this structure, a good compromise between experimental and numerical results is obtained in terms of vertical vibrations and TFs. To further validate the proposed approach, a pre-stressed concrete laboratory facility is also analysed, obtaining a satisfactory agreement between the experimental and numerical TFs. Thus, the proposed approach allows to evaluate lightweight footbridges under crowd-induced loads considering HSI in a simple and accurate manner, which is clearly geared to practice. | es |
dc.format | application/pdf | es |
dc.format.extent | 17 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Journal of Sound and Vibration, 557 (117750). | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Human-structure interaction | es |
dc.subject | Crowd-structure system | es |
dc.subject | Lightweight footbridges | es |
dc.subject | FRP pedestrian structure | es |
dc.subject | Frequency domain | es |
dc.title | A frequency-domain approach to model vertical crowd-structure interaction in lightweight footbridges | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras | es |
dc.relation.projectID | PID2021-127627OB-I00 | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0022460X23001992?via%3Dihub | es |
dc.identifier.doi | 10.1016/j.jsv.2023.117750 | es |
dc.journaltitle | Journal of Sound and Vibration | es |
dc.publication.volumen | 557 | es |
dc.publication.issue | 117750 | es |
dc.contributor.funder | Ministerio de Ciencia e Innovación (Spain) and 10.13039/501100011033 FEDER, European Union grant PID2021-127627OB-I00 | es |