Abstract
AbstractThis 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.
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