Experimental study on seismic performance of Song-style Dou-gong joints in Chinese traditional building

Research on the mechanics performance of Song-style Dou-gong joints is absent currently, especially considering Xiaang and Angshuan in this type of joints. Two different types of Dou-gong joints were experimentally studied by making models in this paper. The Dou-gong joints can maintain good integrity and rotate around the bottom member in the longitudinal plane under horizontal loads, which shows poor seismic performance. The displacement of layers is less, Xiaang and Angshuan can limit slippage between components to some extent, but they had little effect on the seismic performance of the Dou-gong joints. (paper)