Dynamic analysis of a cable-stayed bridge: Correlation with experimental results on the physical model and on the prototype

This paper presents a comparison of modal parameters of a cable-stayed bridge (Jindo Bridge, in South Korea) calculated numerically based both on the prototype and on a physical model, and the corresponding values identified experimentally, performing a modal survey of the physical model using an electrodynamic shaker and a shaking table. As a complement, some main results of dynamic measurements made on the prototype with a monitoring system are also presented. This study, that made clear evidence of the dynamic cable-deck interaction effect, served to validate the numerical models subsequently used in numerical simulations of the seismic response of the bridge.