DAMAGE DETECTION AND LOCALISATION ON REINFORCED CONCRETE SLABS BASED ON MODAL ANALYSIS

摘要

In practice, various kinds of damage on reinforced concrete structures can be found. Undetected damage can lead gradually to the failure of structural members or the structure at all. Therefore monitoring of deterioration degree and damage detection of a structure at the earliest possible stage is very important. The need for methods that can be applied to complex structures led to the development of methods that examine changes in modal characteristics of the structure. Methods, which use results of an experimental modal analysis for estimation of a degradation degree of a structure, are suitable to be verified on simple structural elements where we know their damage state.