Shaking table test and evaluation of a novel high-rise large span concrete cassette structure

Abstract

This paper discusses the seismic performance of a novel high-rise large span concrete cassette structure based on shaking table tests and finite element models (FEMs). A 1/8 scaled 15-story high-rise concrete cassette model structure was established, and a shaking table test was conducted. Seven different intensity levels of ground motions were used based on the design spectra, and the overall performance of the structure, including the story drift ratio, roof displacement, acceleration-amplification coefficient and failure mode, was studied. During the test, the cassette structure showed a good seismic performance, and the structural integrity was maintained even under the ultimate large ground motion. After the test, the structure was free from collapse, and obvious damages could be found only in three stories. Afterwards, a comparison study was conducted between the cassette structure and a frame structure through the FEM, and based on the test and simulation results, the cassette structure exhibited better seismic performance and architectural function. Finally, design recommendations were proposed based on the test and simulation results.