Evaluation of natural frequency and damping of profiled steel sheet dry board composite panel

This paper evaluates the natural frequency and damping coefficient of profiled steel sheet dry board (pssdb) composite flooring panel system. the pssdb composite flooring panel consists of dry board attached to the top surface of profiled steel sheet by self-drilling and self-tapping screws. this pssdb composite panel has been used successfully as flooring system in few construction projects within malaysia. as a lightweight flooring system,human induced vibration is becoming increasingly vital serviceability and safety issues for such panel when it is covering relatively longer span or area. therefore,it is important to evaluate the factors affecting the serviceability performance and hence,to consider the effects of vibration in building such flooring system. this research is focused mainly on the fundamental frequency and damping coefficient of such floor panel. the influence of span length,board thickness,and connectors spacing on fundamental frequency are evaluated. it is shown that for the panels considered in this paper; up to the span length of 3.5 m the fundamental frequency is above the limiting minimum value of 8hz and hence,it can be concluded that such composite floor panel with practical span length will be comfortable to the occupants of building in terms of human induced vibration. © school of engineering,taylor's university.