文献类型：期刊文献

英文题名：PREDICTION OF COMPRESSION STRENGTH OF WOOD USUALLY USED IN ANCIENT TIMBER BUILDINGS BY USING RESISTOGRAPH AND SCREW WITHDRAWAL TESTS

作者：Xue, Shuo[1] Zhou, Haibin[1] Liu, Xiaona[1] Wang, Weibin[2]

第一作者：Xue, Shuo

通信作者：Zhou, HB[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China;[2]Shanxi Supervis Stn Maintenance Qual Tradit Const, Taiyuan, Shanxi, Peoples R China

年份：2019

卷号：64

期号：2

起止页码：249-260

外文期刊名：WOOD RESEARCH

收录：;EI(收录号：20192307009570);Scopus(收录号：2-s2.0-85066461172);WOS:【SCI-EXPANDED(收录号:WOS:000467016100007)】；

基金：This research was supported by the National Natural Science Fund of China (2015BAD14B05).

语种：英文

外文关键词：Compression strength parallel to grain; density; resistograph; screw withdrawal

摘要：Ultimate compression strength parallel to grain (UCS) of wood is one of important performance to evaluate the structural security of old wood buildings. Poplar wood (Populus tomentosa Corriere), Chinese larch wood (Larix gmelinii (Rupr.) Kuzen.) and Chinese fir wood (Cunninghamia lanceolata (Lamb.) Hook) were selected as the models in this paper. The aim of study is to predict UCS of wood by using resistograph and screw withdrawal methods. Compared with the screw withdrawal method (SW), resistograph method (RM) is generally more reliable, but because of the expenses involved, SW should also be considered as a much cheaper alternative. The results showed that the correlation coefficient between the RM and the UCS ranged from 0.5 to 0.7. The correlation coefficient between the double-start thread screw withdrawal force (SWDST) and the UCS distributed from 0.1 to 0.65, while the values of coefficients for the single-start thread screw withdrawal (SWSST) differed from 0.4 to 0.65. In screw withdrawal method, greater pitch of screw resulted in higher correlation coefficient.