Shaking Table Test Study On The Traditional Chuan-Dou Style Wood Frame

Wooden structure building is a precious heritage of Chinese history and culture.It is the representative of Oriental architectural culture.It occupies an important position in the history of world architecture.The most widely used wooden structure in China is the lifting beam type and the wooden structure.In southwest China,there is a large number of wooden structures.As the country advocates the construction of the traditional style town,it is necessary to build and renovate a large number of wooden structure houses.In terms of structural design,the existing norms in China do not provide relevant provisions for the wooden structures.Therefore,the seismic behavior of the structure is studied,the seismic mechanism and the damage in the earthquake are studied.This is of great significance to the protection of traditional wooden structures.It can also provide theoretical basis and technical reference for the reinforcement and repair of traditional wooden structures.In the early stage of this research group,a systematic investigation was conducted on the residential structure of the wooden structure,and the low-cycle repeated load test of the tenon joint was completed.On the basis of this,this paper studies the seismic performance of the wooden structure house by seismic simulation.In this paper,a two-storey wooden structure housing model with a scale of 1/2 scale is designed,and the model is tested by seismic simulation.Observe the damage of the model structure under various intensities.The dynamic characteristics of the model structure are analyzed,and the acceleration response and displacement reaction under each intensity are analyzed.The results show that,with the increasing of the peak of seismic acceleration,the self-oscillation frequency of the model decreases,the damping ratio increases gradually,and the acceleration amplification coefficient decreases gradually.The model damage in the experiment is mainly concentrated on the tenon and tenon nodes,and the stiffness degradation is fast.The maximum displacement Angle of the non-wall model in the seismic phase of the seventh degree is satisfied.With the wall model,the maximum inter-storey displacement Angle is close to the standard limit but still meets the specification.It is proved that the structure has good seismic resistance and deformation performance.The finite element model was established by Ansys Workbench,and the dynamic time analysis of the model was carried out.A comparative analysis of the self-vibration frequency,acceleration response and displacement response of the model is completed.The results show that the calculated results agree well with the experimental structure.The accuracy and reliability of the program for the finite element simulation analysis of the wooden structure housing are verified.On the basis of this,the seismic capability of the model is investigated.