RELIABILITY ASSESSMENT OF REINFORCED CONCRETE STRUCTURES BY USING SIX SIGMA CONCEPTS

Abstract

The present investigation is mainly focused on reliability assessment to the Reinforced Concrete (RC) Structures by using six sigma concepts using Non-Destructive Testing (NDT) technique. Schmidt Rebound Hammer (SRH) estimating the strength on RC Structures. Now-a-days determination of reliability of complex structures is a major problem. It will take very much time and also difficult to assess the reliability of a complex structure in an economical way. NDT compressive strength results of the RC Structures can be used to calculate reliability of complex structures. NDT methods that are available show some sensitivity to concrete properties or defects. These are more common to assess condition on the RCS. Yield (Y) is an important to measure process capability and it is expressed as percentage of Defects Per Million Opportunities (DPMO). It is a measure of number of defects in terms of million opportunities. Sigma quality level is a measure of process defect rate a higher sigma level indicate the process results in lower defects where as a lower sigma level means higher defect rate. In this paper, case study of an existing building of the college campus has been considered and test results are analyzed and presented.