The potential application of ultrasonic testing in the in-situ assessment of Dou components in Chinese timber heritage conservation

IF 8 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Panpan Liu , Sok Yee Yeo , Hiroatsu Fukuda
{"title":"The potential application of ultrasonic testing in the in-situ assessment of Dou components in Chinese timber heritage conservation","authors":"Panpan Liu ,&nbsp;Sok Yee Yeo ,&nbsp;Hiroatsu Fukuda","doi":"10.1016/j.conbuildmat.2025.143880","DOIUrl":null,"url":null,"abstract":"<div><div>In ancient Chinese timber architecture, the <em>Dou</em> component plays a critical role in vertical load transfer and structural stability. Given its complex geometry and historical value, non-destructive and in-situ evaluation methods are essential for assessing its mechanical integrity. This study investigates the feasibility of using ultrasonic wave velocity to predict the vertical load-bearing capacity of full-scale <em>Dou</em> components made of Douglas fir and Mongolian Scots Pine. A total of 200 specimens were tested under cruciform-shaped and linear-shaped compression. Ultrasonic wave velocities were measured along both the longitudinal and transverse directions, and their correlations with stiffness (<em>k</em>) and proportional limit load (<em>F</em>) were analyzed using Spearman rank correlation. The results reveal that longitudinal ultrasonic wave velocity (<span><math><msub><mrow><mi>υ</mi></mrow><mrow><mi>L</mi></mrow></msub></math></span>) offers higher measurement stability and stronger predictive potential for stiffness, particularly in Douglas fir specimens. In contrast, transverse ultrasonic wave velocity (<span><math><msub><mrow><mi>υ</mi></mrow><mrow><mi>W</mi></mrow></msub></math></span>) showed weaker and less consistent correlations with mechanical parameters across both wood species. The findings highlight the influence of measurement direction, wood species, and compression shapes on predictive performance and provide a technical foundation for developing non-destructive evaluation strategies for traditional timber structures. However, due to sample size limitations, future research is needed to refine the statistical models and assess the performance of aged <em>Dou</em> components.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"497 ","pages":"Article 143880"},"PeriodicalIF":8.0000,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Construction and Building Materials","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0950061825040310","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

In ancient Chinese timber architecture, the Dou component plays a critical role in vertical load transfer and structural stability. Given its complex geometry and historical value, non-destructive and in-situ evaluation methods are essential for assessing its mechanical integrity. This study investigates the feasibility of using ultrasonic wave velocity to predict the vertical load-bearing capacity of full-scale Dou components made of Douglas fir and Mongolian Scots Pine. A total of 200 specimens were tested under cruciform-shaped and linear-shaped compression. Ultrasonic wave velocities were measured along both the longitudinal and transverse directions, and their correlations with stiffness (k) and proportional limit load (F) were analyzed using Spearman rank correlation. The results reveal that longitudinal ultrasonic wave velocity (υL) offers higher measurement stability and stronger predictive potential for stiffness, particularly in Douglas fir specimens. In contrast, transverse ultrasonic wave velocity (υW) showed weaker and less consistent correlations with mechanical parameters across both wood species. The findings highlight the influence of measurement direction, wood species, and compression shapes on predictive performance and provide a technical foundation for developing non-destructive evaluation strategies for traditional timber structures. However, due to sample size limitations, future research is needed to refine the statistical models and assess the performance of aged Dou components.
超声检测在中国木材遗产保护中原位鉴定Dou组分的潜在应用
在中国古代木结构建筑中,斗构件在竖向荷载传递和结构稳定中起着至关重要的作用。鉴于其复杂的几何形状和历史价值,非破坏性和原位评估方法对于评估其机械完整性至关重要。本研究探讨了超声波速预测花旗松和蒙古苏格兰松全尺寸Dou构件竖向承载能力的可行性。共对200个试件进行了十字形和线形压缩试验。测量了超声波速沿纵向和横向的变化,并利用Spearman秩相关分析了其与刚度(k)和比例极限载荷(F)的相关性。结果表明,纵向超声波速(l)具有更高的测量稳定性和更强的刚度预测潜力,特别是在花旗松试件中。相比之下,两种木材的横向超声波速(w)与力学参数的相关性较弱且不一致。研究结果强调了测量方向、木材种类和压缩形状对预测性能的影响,为开发传统木结构的无损评估策略提供了技术基础。然而,由于样本量的限制,未来的研究需要完善统计模型并评估老化Dou组件的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Construction and Building Materials
Construction and Building Materials 工程技术-材料科学:综合
CiteScore
13.80
自引率
21.60%
发文量
3632
审稿时长
82 days
期刊介绍: Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信