Vibration Criteria Analysis on Floor due to Human Walking

Abstract

The development of concrete material technology and modern structural design pattern in Malaysia may not consider the effect of vibration from seismic and other sources. Floor vibration may affect the serviceability of the structural and also provide uncomfortable environment to occupants. The main purpose of this study is to investigate the dynamic analysis on floor at the first floor of Faculty of Technology Management and Business (FPTP) building. The analyses are compared with the vibration criteria guidelines by Gordon (1991) to identify the vibration sensitivity of the floor. The investigation on floor vibration due to people walking is using Finite Element Modelling (FEM) in ANSYS software in order to perform modal analysis and transient analysis. Modal analysis shows the result of the natural frequency of the floor and different mode shapes react with subjected various frequency. The time history of the vibration signal will be performed by transient analysis. Furthermore, the results are transferred to MATLAB software (e.g. VSATs) to assess the vibration criteria curve. The results of the vibration plot show the middle of floor panel and laboratory room are categorized under ISO level. Therefore, it can be concluded that this room is not suitable to accommodate the sensitive equipment particularly at the middle of the floor.