Comparison of state-of-the-art methods of estimating & controlling floor vibrations

Abstract

Vibration serviceability is often a governing factor in the design of steel framing systems. The increasing availability of sophisticated Finite Element programs and widespread experimental modal testing of floors has resulted in a second edition of the AISC Design Guide on ‘Vibrations of Steel-Framed Structural Systems Due to Human Activity’. This guide broadens the permissible design methods that designers can utilize in designing efficient steel framing systems. This paper investigates the accuracy and sensitivity of this extended method based on previous research carried out to account for the effects of non-structural components on the modal response of floor systems. This newly published method is compared to that recommended by the Steel Construction Institute of the UK. It is shown that, whilst this guide is a positive step forward, further research is still required to ensure that such methods prescribed can be replicated accurately and repeatable results can be produced using this method.