Resumen
The article, based on the example of an existing metal arch bridge in Zaporozhye, considers application of the «resilient models» technique in calculations of oscillations and stability of such structures. The own free vertical oscillations of the arch span of the bridge were found to be in a forbidden range (0.45 to 0.60 sec). Based on the presented technique, recommendations The article, based on the example of an existing have been developed on reconstruction and dynamic stabilization of the arch span structure.