Author(s)

L. Fryba, M. Pirner & S. Urushadze

Abstract

The reinforced concrete plates with two stiffening girders have been tested by both the static and dynamic loads. The finite element method was ap- plied to both the static and dynamic analysis and the hammer blow method together with the modal analysis show the degradation of specimens as a function of the static load. The degradation is demonstrated in the form of a decreasing tendency of the natural frequency if the applied static load grows. 1 Introduction Plates and girders are two main elements of reinforced concrete bridges. Therefore, the European Rail Research Institute (ERRI) established a com- mittee of experts (under the chairmanship of the first of the authors) which has investigated the int

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