Prediction of Crowd-Induced Vibrations via Simulation

摘要

Stand structures can be excited by dynamic crowd loads to considerable vibration amplitudes which may affect the structural safety as well as the safety and the comfort of the audience. The effect of dynamic loading from rhythmic activities of a crowd has to be understood as a random parameter. A stable estimate of the required design value of the effective load can be obtained by a sufficient large number of field or laboratory experiments, or by a simulation which models the randomness in the load process. The paper discusses some of the basic random parameters in the load process, specifies the appropriate target values for the non-exceedance probability of the effective load amplitudes and presents first results for the design value of the co-ordination factor for different group sizes and different natural frequencies of the structure.