HUMAN-INDUCED VIBRATIONS ON FOOTBRIDGES. CURRENT CODES OF PRACTICE - OVERVIEW

Considering the trend in the last decades of using lightweight materials and, in some sense extraordinary structural configurations, structures have become more and more slender and therefore more susceptible to dynamic excitation. This holds especially for long-span and slender footbridges, since such structures commonly have natural frequencies that fall within the respective frequency range of human excitation. The present paper regards in details the procedures of the current codes of practice. It may serve as a background for subsequent assessment of the dynamic behaviour of footbridges.