古建筑落叶松木构件自然老化材性变化OA北大核心CSTPCD
Properties change under natural aging of ancient building larch members
为探究古建筑木构件自然老化材性变化,以距今约350 a的一段古建筑华北落叶松木构件及与其具有相似年轮宽度的落叶松新材为研究对象,加工标准力学试件,测定试件的材性参数(颜色、全干密度、力学性能参数)及无损检测参数(微钻阻力值、超声波波速),对比分析自然老化木材试件的无损检测参数与材性参数的变化及分布规律,并基于所测得的新旧材两类试件的材性及无损检测参数建立落叶松木材物理力学性能参数的多元回归模型;研究结果表明:所测老化木材试件物理力学参数及无损检测…查看全部>>
In order to explore the change of wood properties of ancient building members under natural aging,a part of larch(Larix principis-rupprechtii Mayr)timber member of ancient building,which is about 350 years old,and a new timber with the same species and similar annual wheel width were used in this study.Small clear specimens were processed to measure the material properties(color,dry density and material mechanics property parameters)and non-destructive testi…查看全部>>
张典
故宫博物院,北京 100009
土木建筑
古建筑木构件故宫养心殿自然老化材性衰减
ancient buildingtimber membersYangxin Hall of the Palace Museumnatural agingproperty of woodattenuation
《土木与环境工程学报（中英文）》 2024 (3)
144-151,8
中国博士后科学基金(2018M641225)故宫博物院科研项目(201909012) China Postdoctoral Science Foundation(No.2018M641225)Project of the Palace Museum(No.201909012)
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