Abstract: “Buildings built with light weight, longer span and high slenderness may possess adequate strength and stiffness for static loads. However, increase in slenderness may create problems associated with vibration under serviceability. The structures with human rhythmic activities are sensitive to dynamic excitation. The main aim of this paper is to predict and analyze the behavior of human rhythmic activities in Steel and Composite floors (Bare steel concrete). A typical floor plan of size 16mx12m which consists of an indoor recreation centre with an arena is considered for this study. ANSYS (ANSYS 11), a computational model is usedfor this study. Usual mesh refinement technique is adopted to study the transient dynamic performance. The results indicate that the peak acceleration values when compared with limits proposed by design code IS 8002007 and ISO-2631(PART-II) are not satisfied. It is suggested that suitable stiffening or enhanced damping can be provided to counteract the rhythmic”

Keywords: Floor vibrations, human rhythmic activities, ANSYS, Peak Accelerations.