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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
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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