Shake-table Tests of A Half-scale Seven-story RC Structure with Stiffness and Damage Irregularities (Specimen-1)

A half-scale seven-story structure (Specimen-1) was tested on the high-performance shake table in the NCREE Tainan Laboratory. The tests aimed to investigate inelastic torsional response under uni-directional seismic excitation due to torsional stiffness irregularity (Series-1A) and unsymmetric damage (i.e. Series-1B with Damage Irregularity). In Series-1A, an unreinforced masonry infill wall was installed in one edge (West) of the first story of the structure, which resulted in high drift demand in the flexible East frame. Series-1B tested a system with damage irregularity caused by torsional response in Series-1A. The test data will be valuable to validate numerical analysis for the specimen as well as to improve seismic assessment for existing buildings subjected to inelastic torsional response.