Analise Dinamica de Pontes para Peoes (Dynamic Analysis of Pedestrian Foot Bridges)

摘要

The work deals with the problem of pedestrian induced vibrations in footbridges. As the level of vibration is liable to be significant and capable of creating an unsafe feeling in the user, there is a need of being able to predict, in the design, the maximum amplitude of the structural response to the action. A formulation is presented and a computer program built to evaluate the dynamic response of footbridges subjected to pedestrian action is described. A simplified method for the maximum acceleration calculation is described as well as the simplistic hypothesis in which it is based and the limits to its application. The differences noticed between the two calculation procedures are analyzed.