Common practice in vibration serviceability assessment of floors is to use a single stationary pedestrian loading scenario, corresponding with a deterministic walking force as suggested by contemporary design guidance. However, slender and lightweight floor structures are susceptible to excessive vibrations origi-nating typically from multiple pedestrians walking across floors with random walking paths. Along each walking path occupants excite a structure with a range of potential walking forces and as such produce different levels of vibration response. This study presents analysis of vibration responses under different loading scenarios, i.e. single and mul-ti-person. A typical new floor structure is used to study a range of walking paths under a number of con-trolled walking tests. A multiple pedestrian loading scenario is also implemented to investigate vibration responses at various locations on the floor. The study shows that vibration responses under multiple pe-destrian loading scenario produce a higher vibration responses than those of a single person and as such they should be considered at the design stage.
