Shaking Table Test of aa RC Box Shear Wall under Uni-directional Input Motion

摘要

Shaking table tests of RC box shear walls subjected to uni- or multi-directional input motions have beenrnconducted in this research series. This paper describes the result of an uni-directional horizontal input shaking tablerntest carried out as the first step of this research series. The employed specimens referred to the models of previousrnstatic loading tests by Nuclear Power Engineering Corporation of Japan. The main objective of this study is to grasprndynamic behaviour of RC shear walls.rnFrom the result of the shaking table test, inelastic behaviour of a RC box shear wall under uni-directionalrnhorizontal input was grasped. The final failure mode was shear slip failure at the wall bottom after flexural yielding.rnThe obtained envelope curve was compared with a result of a past static loading test.rnGenerally, in case of shaking table tests with the conventional control technique, there is a problem that thernfidelity of input waves gets worse when structural characteristic of the specimen changes during shaking. This studyrnemployed a newly developed real-time compensation system to improve control accuracy during such nonlinearrnshaking. The test result verified that the shaking table was controlled with sufficient fidelity by this system.