In the last decades, several excessive vibrations problems in buildings floors have been observed, due to human activities. Therefore, this research work investigates the dynamic structural behaviour of a steel‐concrete composite floor with total area of 315 m2, when subjected to rhythmic human actions, based on the use of different mathematical formulations in order to define the dynamic loadings. The floor numerical modelling was implemented in the finite element program ANSYS, aiming the dynamic structural response analysis. The results indicate important levels for peak accelerations values, resulting in excessive vibrations and discomfort to the building users.
This paper aims to investigate the dynamic structural behaviour and assess the human comfort of steel‐concrete composite floors subjected to loads induced by human rhythmic activities. This way, the analysed structural model is associated with a steel‐concrete composite floor with dimensions of 40m x 40m and a total area of 1,600m2. The dynamic loads were obtained through the use of traditional “only force” mathematical models and also based on the consideration of biodynamic systems, aiming to incorporate the people‐structure interaction dynamic effect to assess human comfort. The floor numerical model was developed based on the use of modelling techniques, adopting the mesh refinement present in the Finite Element Method (FEM), implemented in the ANSYS program. The structure dynamic response was obtained through the study of dynamic loading models related to people practising rhythmic activities on the floor concrete slabs, and compared to the current vibration serviceability limits. It must be emphasized that the dynamic response values surpass the recommended limits indicating that the human comfort of the investigated floor violated the design criteria presenting high accelerations values, causing excessive vibration and discomfort to the users.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.