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中国古建筑是中华文明的重要组成部分,尤其是木结构古建筑。该类古建筑数量众多且蕴含丰富的历史文化信息,因此,如何珍惜和保护这些古迹,使其免受强震的破坏是我们面临的挑战。在前人研究的基础上,进一步研究了古建筑榫卯节点的动力特性和抗震性能:针对榫卯连接的梁柱构件进行了刚度矩阵的推导;分别对二维和三维古建筑木结构进行了模态分析和地震反应时程分析,对比了榫卯节点与刚接、铰接节点结构抗震性能的差异,得到了榫卯节点具有更好抗震性能的结论;运用谱分析理论,进一步验证了三维榫卯木结构框架的良好抗震性能。
Ancient Chinese architecture is an important part of Chinese civilization, especially the ancient wooden structure. These ancient buildings are numerous and contain rich historical and cultural information. Therefore, how to cherish and protect these monuments from being destroyed by strong earthquakes is a challenge we face. On the basis of previous studies, the dynamic and anti-seismic performance of mortise-tenon joints in ancient buildings are further studied. The stiffness matrices are deduced for the tenon-to-mortise joints of beams and columns. The two-dimensional and three- Modal analysis and seismic response time history analysis, the difference of the seismic performance of the tenon-dagged joint with the rigid joint and the hinged joint is contrasted, and the conclusion is obtained that the tenon joint and the diverter joint have better seismic performance. Using the spectrum analysis theory, Uechu structural framework of the good seismic performance.