Evaluación de la predicción de aceleraciones debidas al tránsito peatonal en una pasarela en servicio

Sebastián, Jesús de; Díaz, Iván M.; Casado, Carlos M.; Poncela, Alfonso; Lorenzana, A.

doi:10.3989/ic.12.025

Cited by 4 publications

(1 citation statement)

References 52 publications

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“…The evaluation of the service capacity of the constructed footbridges, suggest the authors, the unification of a load model that incorporates the frequencies of the different phenomena that produce accelerations that give rise to the initiation of a limit state of service or failure, for this reason, in this work we analyze the vibration that stimulates the walk of a pedestrian on a walkway of a type armature footbridge, where the structure is subjected to a dynamic system controlled according to the regulations established by current codes [14] The basic mechanics that govern the present model, is determined by the essential form of walking, for this reason, human locomotion is associated with a dynamic representation of a mass-spring-damper system [25], since, when supporting the mass with the legs , they perform a function of rigidity and damping, then then, generates contact forces, which can vary with the kinematics of the center of mass during the entire cycle of the march, which makes note, the complicated of the analysis, incorporating multiple masses and buffer effects without being unified to a regulation criterion [15].…”

Section: Dynamic System Overviewmentioning

confidence: 99%

Study of Behaviour Dynamic of the Pedestrian Loading on a Footbridge

Carballo¹

2018

IJERT

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This paper presents the study of the movement between a passerby and the concrete walkway of a type armor footbridge, located in the Pachuca de Soto, Hidalgo, Mexico. In which readings were taken people walking with a portable equipment. The human body modeled as a dynamic system consisting of a mass concentrated in its gravity center and two docks representing damped passage. The movement of the mass simulated in a scheme that consists vertical and lateral displacement representation in the footbridge. The influence of the wind or other type of dynamic excitation on the footbridge is not examined here. The scheme idealized in a mathematical model matrixed coupling with the motion equation, through Lagrangian mechanics. It considers the temporary movement of the mass, and the dynamic response of the catwalk. This displacement is the result obtained by the restoration of the concrete footbridge and the energy contribution of the model when walking of six proposed cases, corresponding to different frequencies of passage and human mass, obtaining values that help to identify that the structural performance of the bridge, maintains optimal service conditions.

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Section: Dynamic System Overviewmentioning

confidence: 99%