2014 Volume 70 Issue 3 Pages 272-288
This paper proposes an estimation method of flexural capacity of RC-beams having corroded re-bars, and the method is based on non-destructive inspections. Observing crack width and the drop of wave velocity associated with the re-bars corrosion, the flexural capacity of RC-beams is calculated by substitutions of the reduced re-bar areas estimated from the non-destructive inspections into the formula shown in the Standard Specifications for Concrete Structures of the Japan Society of Civil Engineers. The calculated flexural capacity is checked with results of loading test, and some statistical procedures are studied to obtain conservative flexural capacity overcoming scattered results of the non-destructive inspections.
