Seismic Vulnerability Analysis and Seismic Isolation Performance Research Based on Yingxian Wooden Tower
Yingxian wooden tower is the best existing wooden structure in our country,has very precious cultural properties.After thousands of years of wind and frost,the wooden tower has a certain degree of disease.To ensure that the wooden tower can be used normally under the influence of sudden earthquakes,it is necessary to strengthen and repair the wooden tower.In this paper,a three-dimensional model of Yingxian wooden tower is established by finite element method based on the characteristics of the whole structure,and the damage of the wooden tower under different earthquakes is analyzed.The results show that the upper part of the wooden tower structure belongs to the weak layer,and obvious damage occurs in the upper part of the tower under the action of large earthquake.According to the results of damage analysis,three different isolation combination schemes are designed to explore their isolation effects,and it is concluded that the isolation scheme has the best isolation effect.
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