Based on the previous dynamic analysis models and the structure characteristics of self-anchored suspension bridge with steel-concrete composite girder,a new 3D FEM model is built up for the Guihua bridge,which includes beams,plate,bar and link elements,and the several main frequencies and modal shapes were obtained through modal analysis procedure. Time response histories of the bridge under the ambient excitation and vehicle excitation were recorded. The main frequencies,modal shapes and corresponding damping ratios of the bridge were obtained by of the field testing. MAC was employed to com...
