基于应县木塔的地震易损性分析及隔震性能研究  

Seismic Vulnerability Analysis and Seismic Isolation Performance Research Based on Yingxian Wooden Tower

作　　者：王雷雷 韩晓飞[1,2] WANG Leilei;HAN Xiaofei(Shanxi Earthquake Agency,Taiyuan,Shanxi 030021,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局,山西太原030021 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2024年第4期33-39,52,共8页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-2401)。

摘　　要：应县木塔是我国现存最为完好的木结构建筑,有着珍贵的文物属性。木塔历经千年风霜,发生一定程度的损害。为确保木塔在遭受突发地震影响时可正常使用,需对木塔进行加固与修缮。本文从整体结构特性出发,采用有限元方法建立应县木塔三维立体模型,分析木塔在不同地震作用下的损害情况。结果显示,木塔结构上部属于薄弱层,在大震作用下发生明显损害,根据分析结果,设计三种不同隔震组合方案,探究其隔震效果,得出隔震方案一隔震效果最佳,并提出木塔后续修缮工作建议。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.

关 键 词：三维立体模型 应县木塔 高烈度地震 隔震方案 

分 类 号：TU352.1[建筑科学—结构工程]