Detection of defects in bridges using joint shear wave technique: A laboratory study for structural health monitoring

Abstract

This paper reports on a study carried out regarding the performance of bridges. The applicability of a nondestructive testing instrument called MIRA which uses the powerful joint shear wave principle is demonstrated by working on laboratory test specimens. MIRA gives a superior performance as compared to other non-destructive testing instruments (such as ground penetrating radar) especially for concrete structures. The results obtained are recorded, with an explanation of how this instrument will help in discovering defects in bridge structures. A concrete box beam and a column were taken as test specimens in this study