摘要
根据西安东岳庙大殿实测的几何尺寸和结构构造,采用变刚度单元模拟真实木结构梁柱的榫卯、斗木共连接,用虚拟弹簧单元的不同刚度条件反映真实的半刚性连接,建立合理的力学模型。得到典型榫卯、斗木共连接刚度以及大殿的固有频率、振型以及Elcentro地震波作用下的位移响应曲线。文中提供的方法和结论,可供古建筑保护工作者在进行类似结构分析的借鉴。
According to the measured geometric size and structural construction of Dongyue Temple in Xi＇an,a reasonable mechanical model is obtained by applying the variable rigid elements to simulate the joints of mortise and tenon of the beam-column system in the real wooden structure,and applying the different rigid conditions of the virtual spring element to reflect the real joints with semi-rigidity.Then the stiffness values of the joints can be obtained by model tests,and the inherent frequency and vibration mode and the displacement response curve under the action of Elcentro seismic wave are obtained by using the finite element method.Based on the results,the Dongyue Temple＇safety and reliability can be provided,and the analysis mentioned above could also be applied to other ancient wooden structures.
出处
《水利与建筑工程学报》
2009年第2期36-38,共3页
Journal of Water Resources and Architectural Engineering
基金
西安建筑科技大学基础研究基金项目(JC0722)
西安建筑科技大学人才基金项目(RC0823)
关键词
西安东岳庙
半刚性
频率
榫卯
Xi＇an Dongyue Temple
semi-rigidity
frequency
mortise and tenon
