In situ Stress Assessment in Concrete Structures Under Bi-axial Condition by Trepanning Technique



Assessment of in situ stresses in concrete structures which are under bi-axial stress state is complex to handle. In this paper, a trepanning technique is developed to assess the in situ stress. The proposed technique employs a three-element strain gage rosette to measure the strain release due to core drilling. The reliability of the proposed technique is evaluated through laboratory studies.