残损古建筑木结构力学性能相关研究进展与展望

Research Progress and Prospect on Mechanical Properties of Damaged Ancient Timber Structures

古建筑木结构具有极其宝贵的历史文化价值、艺术价值和科学研究价值,但在环境侵蚀、人为损坏以及自然灾害等影响下,其材料、构造与结构等方面都会产生不同程度的损伤,对结构的承载能力、稳定性以及安全性造成不利影响。结合古建筑木结构残损与破坏特点,总结了近年来国内外对木材性能,榫卯节点、斗拱节点以及梁、柱等典型构件残损,以及整体结构抗震性能等方面的理论、试验与数值模拟等研究现状,重点分析了残损对古建筑木结构承载能力和抗震性能的影响,在此基础上探讨了基于残损的古建筑木结构力学性能研究发展趋势并进行展望,以期为木结构古建筑的预防性保护未来研究课题提供参考。

Ancient timber structure is the most representative page of ancient civilization in China,and it has extremely valuable historical and cultural value,artistic value and scientific research value.However,under the influence of environmental erosion,man-made damage and natural disasters,its material,structure and structure will be damaged to varying degrees,which will adversely affect the bearing capacity,stability and safety of the structure.Combined with the damage and destruction characteristics of ancient timber structures,the research status of theory,experiment and numerical simulation on wood properties,mortise and tenon joints,bucket arch joints,typical components such as beams and columns,and seismic performance of the whole structure in recent years at home and abroad were summarized,focusing on the analysis of the impact of damage on the bearing capacity and seismic performance of ancient timber structures.On this basis,the research development trend and prospect of mechanical properties of ancient timber structures based on damage were discussed,which can provide reference for future research topics of preventive protection of ancient timber structures.