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A new type of RC core wall with steel tube-reinforced concrete columns and concealed steel plate is proposed. In order to know the seismic behavior of the composite core walls, a cyclic loading test on the 1/6 scale RC core walls with holes was carried out in this paper. Based on the experiment, the load-carrying capacity, hysteretic behavior, ductility, stiffness attenuation and failure are discussed. The tested results show that the seismic performance of the RC core walls with steel tube-reinforced concrete columns and concealed steel plate is better.
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