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The article presents a method for assessing dynamic resistance of existing reinforced concrete slab road viaducts subjected to mining tremors. For this purpose there are formulated six criteria to determine the maximum permissible value of the component ground vibrations (ax,dop, ay,dop, az,dop).Within each criterion, a reference is made to the most critical components, for which for which the Author has formulated strength and kinematic conditions, reflecting the behaviour of the structure under dynamic excitation caused by mining tremor. The permissible range of structural behaviour was set by comparing the effects of load combinations adopted at the design stage with a seismic combination proposed in [12]. In the field of dynamic analysis the response spectrum method was used, taking into account the guidelines for the adaptation of Eurocode 8 for the calculation the response of construction to the influence of mining tremors. Finally, in accordance with the established procedure calculations were carried out and and results are presented for a sample reinforced concrete slab road viaduct

A PROPOSAL FOR AN ASSESSMENT METHOD OF THE DYNAMIC RESISTANCE OF CONCRETE SLAB VIADUCTS SUBJECTED TO IMPACT LOADS CAUSED BY MINING TREMORS