详细信息
古建筑木材中应力波传播速度的影响因素 被引量:13
Effects on Stress Wave Speed inside Wood Members in Historical Buildings
文献类型:期刊文献
中文题名:古建筑木材中应力波传播速度的影响因素
英文题名:Effects on Stress Wave Speed inside Wood Members in Historical Buildings
作者:陈勇平[1] 李华[1] 黎冬青[2] 张涛[2]
第一作者:陈勇平
机构:[1]中国林科院木材工业研究所国家林业局木材科学与技术重点实验室;[2]北京市古代建筑研究所
年份:2012
卷号:26
期号:2
起止页码:37-40
中文期刊名:木材工业
外文期刊名:China Wood Industry
收录:CSTPCD;;北大核心:【北大核心2011】;
基金:北京市古建筑木结构安全状况无损检测技术研究与应用(Z090506016609002)
语种:中文
中文关键词:古建筑;木材;应力波速度;含水率;传播方向
外文关键词:historical building; wood; stress wave velocity; moisture content; propagation direction
分类号:TS759;S791.18
摘要:对应力波在古建筑木材中传播速度的影响因素及其影响规律进行了检测和分析,目的是找出各种因素变化与应力波扫描图像之间的关系,从而更好地判定木材内部缺陷的位置和面积。研究表明:含水率对应力波传播速度影响显著;在相同含水率下,应力波径向传播速度大于弦向,其传播方向偏离髓心越远,传播速度越小;树种和年代对应力波传播速度也有影响。
The authors studied the effect of moisture, species, and duration of service on stress wave speed in wood members located in historical buildings. The results showed that wood sample moisture content had a considerable effect on stress wave speed. The speed decreased when moisture content increased. Stress wave speed was found to be higher in the radial direction than in the tangential direction at the same moisture content. It was also found that species and duration of service also affected stress wave speed.
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