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Influence of aging of concrete on the dynamic response of structures
Fischer, Ondřej ; Pirner, Miroš
Downtrend of the fundamental natural frequency of a structure with time, detected by periodical diagnostic in situ measurements, can signal damage, starting anywhere in the structure, or the progressing degradation of its material. The influence of aging (creep) of concrete on E-modulus is examined in the paper, using the data found on a real chimney during the first 7 years of its existence. An attempt to take the uncertainty of the measured input data for the prognosis of the future behaviour of the structure into account with the use of the SBRA method, is given.
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Experimentally obtained values and their elaboration using SBRA-method
Pirner, Miroš
The article is aimed to inform about the knowledge accumulated in the field of dynamic experiments and identification of condition of concrete bridges, attention is primarily given to the method of Simulation Based Reliability Assessment (SBRA-method). The second part informs about application of this method in the field of aerodynamics of civil engineering structures.
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