文献类型：期刊文献

英文题名：Mechanisms of transverse compression damage and reinforcement strategies for Larch wood

作者：Huang, Lei[1] Wang, Ying[1] Han, Xu[1] Zhou, Haibin[1] Wang, Shuangyong[1]

第一作者：Huang, Lei

通信作者：Wang, SY[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2025

外文期刊名：WOOD MATERIAL SCIENCE & ENGINEERING

收录：;EI(收录号：20250617808109);Scopus(收录号：2-s2.0-85216610441);WOS:【SCI-EXPANDED(收录号:WOS:001411800100001)】；

基金：The authors are grateful for the financial support from the Chinese Academy of Forestry Fundamental Research Fund (grant number CAFYBB2023PA004) and National Key R&D Program of China (grant number 2023YFF0906301).

语种：英文

外文关键词：Larix princips-rupprechtii; transverse compression; compressive strength; failure mechanismt

摘要：Transverse compression damage frequently affects active wooden components of ancient architecture, such as beams and Dou-gong, compromising structural safety. Larch (Larix gmelinii var. principis-rupprechtii (Mayr) Pilger) wood, commonly used in ancient northern Chinese architecture, has limited studies on its transverse compression damage mechanisms. Traditional reinforcement methods are often ineffective. The present study integrated plastic equilibrium theory and static loading experiments to examine the transverse compression damage mechanism of larch wood under significant deformation. It also introduced an innovative method for parcel constraints to enhance the compression strength of wooden components in ancient architecture. Results showed the transverse compressive strength of larch wood ranges from 3 to 17 MPa, with maximum load-bearing capacity doubling after enhancement. End-wrapping confinement increased the load-bearing capacity by over 16%. Load-displacement curves under different compression conditions followed a three-stage pattern: elastic, plastic, and densification. Damage in larch wood began in the plastic stage. Under localized compression, samples exhibited a sudden drop in load-bearing capacity and secondary failure at 60-70% strain. This study offers valuable insights into the damage and residual load-bearing capacity of transversely compressed wooden components. The proposed compression enhancement strategy can reinforce damaged wooden components in ancient architecture, contributing to preserving cultural heritage.