Analysis Forcetr Ansmission Mechanism And Seismic Of China Timber Structure

After thousands of years of evolution, China timber structure has its unique architecture form,and many times after earthquake, still stands, reflects the unique structural characteristics-flexible weakly connected system. Understanding of timber structure framework, the main components of the type and name of ancient wood structure and the construction technique, statistical analysis of timber structure in earthquake seismic damage performance and characteristics, may help studying the study of ancient wood structure seismic performance and timber structure reinforcement and maintenance.Now,we know that the earliest records of specific structural forms are Tailiang system, Chuandou system and Well-fram, Raised-beam fram contain of palace structure and hall structure. Present,more studying on palace type frame, but ansysis Chuandou system less or even a blank. In this thesis, summarizes the existing research results of the ancient timber structural system frist.Revealed the unique seismic mechanism components, the base sliding isolation, mortise and tenon joints sliding friction energy dissipation, energy dissipation seismic isolation layer properties. Based on the existing research results, using the palace structure test model and Chuandou construction entity buildings as research object, with the spring element to simulate the structural energy dissipation factor, analysis the structure dynamic.Through the framework of each layer of the maximum displacement and the displacement difference, maximum acceleration, the tenon.and mortise Zhang Jiao and brackets the maximum displacement and. rotation of the comparative analysis, fully proved that the previous analysis of the correctness of the theory as well as the spring element simulation rationality. Model analysis, change of each spring element stiffness value and the elimination of the elastic connection, show a mortise and tenon joint of framework of the energy dissipation effect is most pronounced, In addition, altering the mortise and tenon joint stiffness value of Chuandou system on the time history analysis results show that, the flexible connection of tenon and mortise in a certain stiffness within the components of the energy dissipation effect. This prompted us, in the ancient timber structure reinforcement and repair, and does not mean "put" or "solid", should choose the appropriate materials and reasonable reinforcement scheme, the mortise and tenon joint played the most important role, otherwise it will run counter to one’s desire.