维普中文期刊产品整合服务

Quantitative Analysis on Measure Results by Resistograh for Wood Decay of Ancient Architecture

查看全文 作　　者：WANG [1]Xiaohuan;HUANG [1]Rongfeng;ZHENG [2]Hongkui;LI [1]Hua;LIU [1]Xiuying 高影响力作者 机构地区：[1]Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, P.R.China;[2]Inner Mongolia Agricultural University, Hohhot, 010018, P.R.China高影响力机构 出　　处：《Chinese Forestry Science and Technology》索引2006年第5卷第4期,共7页高影响力期刊 基　　金：This work was supported by Ministry of Science and Technology Project (No.2004DIB5J187) and State Administration of CultureHeritage Project (No. 2003022) 摘　　要：The air-dried density, bending strength (MOR) and compressive strength parallel to grain of different grades of rotten wood were measured with test specimens of 100-130 year-old larch (Larix sp.) collected in Wu Ying Dian, the Forbidden City. In addition, the MOR of specimens was measured by Resistograph and the correlations were analyzed between resistance value and mechanical properties of wood. The correlations are significant for quantitative evaluation of wood structural condition by Resistograph. The results showed that wood air-dried density, strength properties and resistance values decreased significantly with the increase of decay degree, and there were remarkable differences among various grades of wood. Based on the rotten degree, the attenuation rate is in the following order: MOR> compressive strength parallel to grain > air-dried wood density > resistance value, and the above 4 indexes were 32%, 53%, 73% and 74% of those of intact wood, respectively, when the degree of rotten wood reached grade 3. Significant positive correlation at 0.01 level was showed between the wave trough values and wood air-dried density, MOR, compressive strength parallel to grain. The correlations between the wave peak values and the average value and air-dried wood density, MOR reached 0.01 level, and the correlations between the wave peak values and the average value and compressive strength parallel to grain reached 0.05 level. Based on the correlation between resistance value and physico-mechanical properties of wood, the values could be analyzed quantitatively. 关 键 词：古代建筑 木材腐烂 抗弯强度 数量分析
相关文献

参考文献(10)

引证文献(6)

耦合文献(138)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费