Stress Measurement Techniques for the Concrete Structures according to measuring displacement due to Stress-Relief

摘要

The present invention safety diagnosis of concrete structures such as tunnels, bridges, dams constructed by using the concrete and measuring the stress in the current state are receiving a number of load, by measured the current state of stress in concrete structures promote proper safety evaluation It relates to the wish to stress release during stress measurement method of the concrete structure in accordance with the displacement measurements, and the disc attachment step of attaching a disk for measuring a concrete specimen and more particularly, for measuring watching loads are encountered in the load state toward the respective upper and lower and attaching the displacement measuring step of measuring a station spacing of the disks, and perforation step of drilling a concrete test piece so that the core is obtained, with the perforation displacement measuring step of measuring the displacement station spacing of the disks for measurement, respectively facing toward the top and bottom, the measured displacement displacement comparison step of determining a representative displacement to be applied to the stress calculation and, with the modulus measured phase of the core obtained in the perforation step, the displacement calculation steps per unit stress to estimate interpretation displacement, the actual displacement calculated at the displacement comparison step by dividing the displacement calculated in the analysis unit calculates the displacement per step stress is characterized in that it consists of the stress calculation step of calculating stress. ; Stress, displacement, concrete core, precision safety diagnosis