仿古木结构抗风安全性检测与评估

Detection and Evaluation of Wind Resistant Security of Antique Wood Structure

主要研究仿古木结构在风荷载作用下关于结构安全性能的检测、评估方法。针对影响结构安全性的因素,介绍了仿古木结构现场检测及原材料试验的基本内容,讨论了木结构榫卯节点半刚性连接特性及其在有限元计算中的分析模型。以实际工程为例,运用现场检测、原材料试验及有限元技术,对某鼓楼抗风安全性进行了分析。结果表明,现场检测技术与有限元分析方法的有效结合,可为古建筑、仿古建筑的安全评估、维护和修缮提供理论依据。

This paper mainly researches on the safety detection and assessment method of antique wooden structure under wind loads. In view of the influence factor of structural reliability,this article describes the basic content of the antique wooden structure on-site detection and raw material test,then discusses the semi-rigid properties and FEA model of wood mortise and tenon joint. Taking a actual engineering for example,the wind resistance safety of a tower is calculated and analyzed by means of on-site detection, raw material test and finite element technology. The results show that the effective combination of on-site detection technology and FEA method can offer theoretical basis for safety assessment,maintenance and repairment of the antique structure.