earticle

영어

The paper experimentally investigates the seismic performance of a damaged RC wall repaired and strengthened by using Textile Reinforced Mortars (TRM). The TRM combines mesh fabrics with cement-based mortars, and thus it has outstanding properties of high tensile strength, ductile behavior, and low layer thickness. To enhance the durability and adhesion capacity of a repaired and retrofitted specimen, styrene butadiene rubber (SBR) is mixed in mortars and injection-type chemical anchors are utilized. The seismic performance of the RC wall specimen repaired and retrofitted with the TRM, is evaluated through a static cyclic test and compared with those of the intact RC wall specimens. The test result shows that the ultimate displacement and ductility ratio of the retrofitted specimen significantly increase compared to those of the intact specimens. Therefore, it is concluded that the repairing and retrofitting method using TRM for RC walls could be an effective solution to restore and improve the structure capacity of damaged RC walls.