木结构残损榫卯节点抗震性能及加固修复研究进展

RESEARCH PROGRESS ON SEISMIC PERFORMANCE AND REINFORCEMENT REPAIR OF DAMAGED MORTISE-TENON JOINTS IN WOODEN STRUCTURES

由于木材的生物特性,榫卯节点会随时间的增长出现不同程度的残损,严重时会导致整个结构发生倒塌,因此探讨木结构残损榫卯节点的抗震性能及加固修复具有重要意义。国内外学者对残损榫卯节点的抗震性能及加固方式进行了大量研究,文中将相关研究成果依据研究方法分类,从模型试验和数值模拟对残损榫卯节点抗震性能研究现状进行总结,并对其加固方式进行对比研究。建议提高试件的加工精度和增加试件的数量来减少残损构件的抗震试验结果误差,提出引进新材料对其进行加固,并对榫卯节点的抗震性能研究发展趋势进行了展望,以期为古建筑木结构的保护和修缮提供参考。

Due to the biological characteristics of wood, the mortise-tenon joints damage at varying degrees over time, which would lead to the collapse of the whole structure in serious cases. In this paper, the research progress is classified according to the research methods, and the current status of the research on the seismic performance of mortise-tenon joints is summarized in terms of model tests and numerical simulations, in which the reinforcement methods are compared and studied. It is suggested to improve the processing accuracy of test pieces and increase the number of test pieces to reduce the error of seismic test results of the damaged members. The introduction of new materials for their reinforcement was proposed, and the research trend of seismic performance of mortise and tenon nodes was pointed out, providing reference for the conservation and repair of ancient wooden structures.