Xieshan Palace Ancient Buildings Structure Dynamic Performance Research

Jehiel mountain type palace is a typical system of ancient architecture,ancient building to the structure finite element analysis in the structure of ancient architecture heritage detection,seismic strengthening,aseismatic appraisal,etc,have great help.Based on mountain type palace ancient buildings as the research object,through detailed analysis of the historical documents and the actual engineering data on the wood material characteristic test,static analysis was carried out on the structure,the bearing capacity of beams,this article on the shaking table test model modeling method is proven to be correct and reasonable,on the basis of MIDAS finite element software is adopted to establish the four different structure model of mortise and tenon joint,column development node connections,and the four groups of structural dynamic characteristics analysis,in-depth study different ways of mortise and tenon joint,column development node is connected to the influence of the structure of the overall dynamic performance.The main contents are as follows:(1)Through the wood for material test,analyzes the mechanical performance index of the wood and factors that influence the mechanical properties of hall get jehiel mountain type material characteristic of ancient architecture,provide reliable mechanical parameters set up model for later.The static analysis of the structure of the resting hill palace structure is analyzed,and the structure of the structure is under static load,and the bearing capacity of the beam column can meet the structural design requirement.(2)Of timber frame shaking table test model was simplified,the structure finite element model is established,the experiment and calculation data fitting,proved that using the virtual spring unit group of the rationality and validity to simulate the semi-rigid nodes,in order to establish the rest later mountain type palace structure integrated model provides a basis and methods.(3)On four groups of jehiel mountain type palace buildings structure modal,response spectrum and time history analysis,and compared with mortise and tenon joint node connection,column development of semi-rigid connection on the extension of structural natural vibration period superiority is bigger;The semi-rigid connections of the column and the semi-rigid connections of the tenon nodes can reduce the peak of structural displacement,and have a good vibration isolation effect.Column development of semi-rigid connections can enhance ability to resist overturning of the structure,so as to reduce the peak acceleration of superstructure of that column development semi-rigid connection has good energy dissipation damping effect.Study shows that the mortise and tenon joint semi-rigid column in succession and development of semi-rigid connection to jehiel mountain type palace buildings aseismic play a good role,for isolation bearing and provide theoretical basis for the design of vibration isolation components.