Dynamics of prestressed beams coupled with a string

摘要

A new coupled system beam and string, connected together with an elastic layer of Winkler type, is suggested in this paper. The double system presents the diminishing of the response under a moving force in some cases. The theoretical model looks like a Bernoulli-Euler beam with an axial force and a string with a tensile force. The investigated case represents a simple theoretical model of a prestressed bridge.