Jumping load models applied on a gymnasium floor

Martínez, Jorge Coque; Hermanns, Ludger M.; Lerma, Alberto Fraile de; Álvarez, Enrique Alarcón

doi:10.1016/j.engstruct.2016.06.051

Cited by 12 publications

(5 citation statements)

References 5 publications

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“…Regarding jumping loads, although the comparison between the actual and the simulated responses of flexible structural systems based on force‐only models has not been investigated and published in great detail until the late 2000s, a recent study reported that perfectly periodic force models could overestimate the actual structural response by up to 140% in resonance. Latest works also demonstrated this trend …”

Section: Characterisation Of the Jumping Loads And Structural Dynamicmentioning

confidence: 61%

“…Dey et al reported that for a fully nonresonant case for walking loads, the force‐only models predicted the experimental observations relatively well. It should be noted, however, that the use of perfectly periodic force models for jumping loads could underestimate the actual out‐of‐resonance response because they do not take into account the spread of the energy into nearby force harmonics . In this sense, statistical or stochastic models are promising to better predict the overall structural response .…”

Section: Characterisation Of the Jumping Loads And Structural Dynamicmentioning

confidence: 99%

“…It should be noted, however, that the use of perfectly periodic force models for jumping loads could underestimate the actual out‐of‐resonance response because they do not take into account the spread of the energy into nearby force harmonics . In this sense, statistical or stochastic models are promising to better predict the overall structural response . Nevertheless, these models still disregard the influence of the human‐structure interaction …”

Section: Characterisation Of the Jumping Loads And Structural Dynamicmentioning

confidence: 99%

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Active human‐structure interaction during jumping on floors

Gaspar

Caetano

Moutinho

et al. 2019

Struct Control Health Monit

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The study of the human-structure interaction (HSI) using biodynamics models has gained attention lately. Several studies have demonstrated that the passive (standing still) and active (bobbing/bouncing or walking) persons can act for the benefit of the structural system by considering their body dynamic properties. Nevertheless, little concern has been addressed regarding the HSI during jumping loads on floors. This kind of human load is often considered as a "force-only" model by design guides, and the body dynamics is disregarded.Therefore, aiming at filling this gap, this work investigates experimental and numerically an individual jumping on a vibrating (flexible) floor mounted in the laboratory. The active HSI was evaluated considering both single and two degree of freedom models in time and frequency domains. Besides, the assessment of the human body dynamic parameters (spring, mass and damper) was carried out based on optimisation techniques. The results show the potential benefit of taking into account the active HSI in near-resonant cases to the detriment of a force-only model.

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Section: Characterisation Of the Jumping Loads And Structural Dynamicmentioning

confidence: 61%

Section: Characterisation Of the Jumping Loads And Structural Dynamicmentioning

confidence: 99%

Section: Characterisation Of the Jumping Loads And Structural Dynamicmentioning

confidence: 99%

See 1 more Smart Citation

Active human‐structure interaction during jumping on floors

Gaspar

Caetano

Moutinho

et al. 2019

Struct Control Health Monit

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“…The described pedestrian load is regarded only as a dynamic load applied to the structure, while its influence on structural mode is not sufficiently taken into account [39,40]. Thus, following a recent study on crowd-structure interaction, the MSD model at each personal location is applied 11 to the structure [26].…”

Section: Crowd-structure Coupling Systemmentioning

confidence: 99%

Investigation of a vibration mitigation method based on crowd flow control on a footbridge

Zhu

Yang

et al. 2021

Structures

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“…A load model is necessary to evaluate the vibration performance of a structure subjected to a jumping activity, either in the design stage or the as-built stage [11]. Plenty of studies on individual jumping loads have been conducted, and the load models have been well established accordingly [12][13][14][15][16]. However, practical engineering structures are usually faced with crowd-jumping loads.…”

Section: Introductionmentioning

confidence: 99%

A Fourier Series-Based Multi-Point Excitation Model for Crowd Jumping Loads

et al. 2023

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Crowd jumping loads are often simplified to a single-point excitation in the existing Fourier series-based models, most of which lack the data support of crowd jumping experiments. A Fourier series-based multi-point excitation model for crowd jumping loads is herein developed, where two parameters, the jumping frequency, and the time lag shift, are selected to quantify the crowd synchronization. After the verification of 3D motion capture technology, the probability distributions of the jumping frequency and the time lag shift are modeled based on the crowd jumping experiment, in which the trajectories of the reflective markers of 48 test subjects were simultaneously recorded by 3D motion capture technology. Through repeated sampling, the jumping load of each person in a crowd is simulated. This model could offer a useful method for evaluating the vibration performance of assembly structures like grandstands, gymnasiums, and concert venues.

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Jumping load models applied on a gymnasium floor

Cited by 12 publications

References 5 publications

Active human‐structure interaction during jumping on floors

Active human‐structure interaction during jumping on floors

Investigation of a vibration mitigation method based on crowd flow control on a footbridge

A Fourier Series-Based Multi-Point Excitation Model for Crowd Jumping Loads

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