Abstract
This paper discusses the methodology on performance assessment of un-reinforced concrete structures with cracks. Inspection on un-reinforced concrete coastal structures has been conducted to qunatitatively evaluate crack properties. The authors proposed an equation to estimate crack depths from their widths by the statistical analysis. Subsequently, an un-reinforced concrete parapet was modeled with various crack patterns by using the proposed equation considering the size of the structure. A finite element analysis was carried out to identify the relationship between crack patterns and structural performance of un-reinforced parapet. As a result, a deterioration grading criterion based on the surface crack width and the size of structure was newly proposed for assessment of structural performance of un-reinforced concrete coastal structures.
