Estudo do comportamento estrutural dinâmico e avaliação de conforto humano de pisos de concreto armado de edificações submetidas a ações humanas rítmicas

Abstract

This research aims to study the dynamic response of reinforced concrete floors about optics of human comfort. The structural model investigated consists of a reinforced concrete floor destined to a gymnasium and submitted to the practice of aerobic activity. The proposed analysis methodology adopted the usual mesh refinement techniques present in the finite element method (FEM) simulations implemented in the ANSYS program. The theoretical modeling of the dynamic loading was carried out according to several authors and design guides, being the loading arranged in several squares on a structure and with the purpose of analyze the effect of the position of the load in the dynamic response. For the evaluation of the results, the accelerations were obtained in three ways: in peak values, in root mean square value (RMS) and in vibration dose value (VDV). The values of the accelerations found were then compared and confronted with the limits proposed by normative recommendations and by several authors. The results showed that the recommended limits were exceeded in some situations, showing that human rhythmic activities can cause harm to the human comfort of the users, however, comfort limits can be acceptable if the positioning of the load in the structure is changed.