| Cyclic loading tests using specimens approximately one-fourth the size of an actual structure was conducted for quantitative measurement of the repair effect depending on the degree of damage in the case of repair of an RC pier damaged by an earthquake. In the loading tests、 specimens to which a certain amount of damage was inflicted through preliminary loading were repaired by the injection of epoxy resin or section restoration using non-shrink mortar、 and load was then applied once again. The experiment revealed that tenacity and energy absorption could be improved in the repaired speciments and that their seismic performance could be equivalent to or higher than the specimens that had not been repaired、 although the rigidity decreased up until the first yield displacement. |
