Experimental Study On Seismic Behavior Of Chinese Ancient Wooden Building With Strengthened Mortise-Tenon

Chinese ancient wooden buildings are important in Chinese traditional culture, and to some degree they represent the development level of science and technology in ancient China. How to protect the cherished relic from being destroyed by strong earthquakes is the challenge to us.In this paper, with the aseismic behavior of Chinese ancient buildings in several respects of the structural system and form, we realize that on the conceptual design, the construction, the dissipating energy and the reducing response of structure under earthquake, the Chinese ancient building is in accordance with those of recent aseismic principle. Through an experimental study on three wooden frame models made in accordance with the requirements for the shape and structure by Ying Zao Fα Shi (Building Standards) of the Song dynasty, the tenon-mortise joint mechanisms of such frame, the failure modes and the seismic performance in the corresponding state has been put to analysis and proposed a calculating model for this type of wooden structure under horizontally seismic load. Based on good behaviors of energy dissipation of the mortise-tenon and its importance on the connection between the various parts of structure, it's realized that consolidating the mortise-ten on joint will be one of the effective anti-seismic strengthening methods of Chinese ancient wooden building. In order to prove efficiency, we make a model according to the actual ancient wooden place with a scale of 1/3.52 of the prototype structure whose mortise-tenon joints has been consolidated or not, on which the shaking table experiment is carried out by comparing and measuring the dynamic characteristics of frequency damping ratio and seismic responses of model.