苏州艺圃乳鱼亭木构件材质与结构安全性评估  

Assessment of Wood Quality and Structural Safety of Ruyu Pavilion in Suzhou Cultivation Garden

作　　者：陈勇平[1] 赵鹏[2] 杨红[2] CHEN Yongping;ZHAO Peng;YANG Hong(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China;The Palace Museum,Beijing l00009,China)

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091 [2]故宫博物院,北京100009

出　　处：《木材科学与技术》2023年第2期53-58,共6页Chinese Journal of Wood Science and Technology

基　　金：国家重点研发计划课题“明清官式建筑材料科学化认知研究”(2020YFC1522402);中央级公益性科研院所基本科研业务费专项资金“刺入式探测对木柱承载能力的影响机制”(CAFYBB2019SY033)。

摘　　要：通过传统勘察和现代无损检测技术,对苏州艺圃乳鱼亭木构件用材树种和材质现状进行检测评估,并建立乳鱼亭的三维有限元模型。研究结果表明:乳鱼亭木构件用材树种主要为云杉(Picea sp.)和杉木(Cunninghamia sp.),仅少部分木构件存在开裂和腐朽问题,腐朽主要为柱底易受潮区域。按照GB 50005—2017《木结构设计标准》规定,云杉和杉木强度等级TC11-A进行设计值取值,并考虑实际使用年限、使用环境等情况进行折减,最终有限元分析结果显示,乳鱼亭竖向荷载主要由其4根角柱承担,整体结构的承载力仍能满足承载力极限状态要求。研究结果为乳鱼亭修缮加固处理提供基础数据支撑。Through traditional surveys and modern non-destructive testing technology,the material quality of each component in the wood structure of the Ruyu Pavilion in Suzhou Cultivation Garden was evaluated.An three-dimension finite element model of the whole wood structure of Ruyu Pavilion was established.The results show that the wood species used in the wooden structure of Ruyu Pavilion are mainly spruce and Chinese fir.Only a small number of wood components in the wood structure of Ruyu Pavilion have cracking and decay problems,mainly in the areas prone to dampness at the bottom of the column.The design value is considered according to the strength grade TC11-A in the national standard GB 50005—2017 Standard for design of timber structures.The actual service life,the use environment,and other conditions are also considered.Finally,the finite element analysis shows that the vertical load of the wooden structure of Ruyu Pavilion is mainly borne by four corner columns.The bearing performance of the overall structure meets the ultimate state requirements of bearing capacity.This paper provides basic data support for the subsequent repair and reinforcement treatment for Ruyu Pavilion.

关 键 词：乳鱼亭 木结构 安全分析 用材树种 材质现状 三维有限元模型 强度等级 

分 类 号：S781[农业科学—木材科学与技术] TU366.2[农业科学—林学]