Research On The Mechanical Characteristics Of Luoyang Kyushu Pool Yaoguang Temple Structure

The Chinese ancient architecture have great differences with modern buildings in materials,construction and other aspects,so that the mechanical system and performa-nce of them are also very different.Many special structures of the ancient timber structure buildings,such as plinth floating resting,mortise tenon connection,not only constitute its unique artistic style, but also determine the load transfer mechanism and the seismic performance.In this paper, taking the Loyang Jiuzhou pool Yaoguang temple as the research object, through the establishment of structural model,stress analysis and the results of the analysis contrast, the influences of semi-rigid nodes on the force characteristics of the whole structure are further gone into.According to the structural characteristics and mechanical properties of timber structure, three groups of different nodes connections whole structure finite element models are built in MIDAS/Gen software. Through the static test and dynamic analysis, study the effect of different node connections on the mechanical characteristics of the structure. The following conclusions are obtained:(1) Through the simplification of the vibration table test model of timber frame, build structure calculation model,the data fitting is carried out, which proves the rationality of using the virtual spring element to simulate the semi-rigid node.(2) Through the static checking, the results show that under the action of static load, the beam column bearing capacity to meet the requirements of the structure design and its strength has greater surplus.(3) By the modal analysis,it shows that floating shelf type connection,tenon and mortise connection can extend the structure self vibration cycle, thereby reducing the structure by the horizontal earthquake action. Compared to the modern rigid connection, it has a significant effect of damping energy dissipation,while almost has no effect on the vibration of the structure, slip, reverse direction.(4) Through the analysis of reaction spectrum and dynamic time history analysis, it is found that the semi-rigid connection can reduce the internal force of the structure, weaken its acceleration and displacement peak value, so as to improve the structure’s ability to resist deformation and enhance the stability of the structure.Under the earthquake action, because of the column base sliding, the structure by the horizontal earthquake action is reduced. This shows column floating shelf type connection has a certain vibration and energy consumption.(5) Through the optimization of the beam and column section size, get the best section size, which not only reduce the weight of the structure, but save the material.Based on analysis, the fundamental reason why the seismic performance of the timber structure is superior is acquired. It could provide theoretical basis for the isolation bearing and the isolation components.