Structural Assessment by Modal Analysis: Case Study of the New Algiers Airport

TL;DRAbstract

The assessment of the structural resistance of existing constructions such as buildings, bridges, dams etc. uses often mathematical models whose parameters can hardly be precisely estimated by analytical procedure only. Therefore, the elastic, mass and damping characteristics of the structure to be assessed must be known to a sufficient degree of accuracy in order to evaluate the actual structural capacity of the construction. The elastic dynamic properties, particularly the natural frequencies and the corresponding mode shapes are a combined measure of the structural characteristics of the construction. These model characteristics can be successfully estimated, especially in elastic range, using the well known ambient vibration testing. In this paper, the assessment procedure of the new Algiers airport building is described. The results of an extensive program of non-destructive and destructive tests on the concrete were put into the equations, and series of ambient vibration tests we

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