文献类型：期刊文献

英文题名：Effects of Decay on the Mechanical Properties of Nailed Joints in Light Wood Frame Structure

作者：Gao, Ying[1] Mei, Shiyi[1] Ma, Xingxia[2] Meng, Xinmiao[3]

第一作者：Gao, Ying

通信作者：Gao, Y[1]

机构：[1]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China;[3]Beijing Forestry Univ, Coll Soil & Water Conservat, Beijing, Peoples R China

年份：2021

卷号：71

期号：1

起止页码：46-57

外文期刊名：FOREST PRODUCTS JOURNAL

收录：;EI(收录号：20212110377958);Scopus(收录号：2-s2.0-85105926184);WOS:【SCI-EXPANDED(收录号:WOS:000665397800007)】；

基金：This research work was jointly supported by the National Key R&D Program of China (2017YFC 0703503) -Safety, durability, welfare adaptability and evaluation technique for wood and bamboo structures, and the National Natural Science Foundation of China (31770602) -Flexural rupture mechanism and design calculation method of Steel-wood composite column/beam. Ying Gao directed and reviewed the manuscript; Shiyi Mei, Xingxia Ma, and Xinmiao Meng designed and performed the experiment, prepared and edited the manuscript. The authors thank Ying Zhang for assisting in performing the experiment and analyzing data. This study was funded by the National Key R&D Program of China (2017YFC 0703503) and the National Natural Science Foundation of China (31770602). The data sets used and/or analyzed during the current study are available from the corresponding author on reasonable request. The authors declare that they have no competing interests.

语种：英文

外文关键词：Codes (standards) - Energy utilization

摘要：For this study, spruce-pine-fir (Picea-Pinus-Abies [SPF]) specification material, oriented strand board (OSB), and domestic twisted nails that were driven vertically and perpendicular-to-grain were selected. Referring to GB/T 13942.1-2009, nailed joints specimens were exposed both to white rot fungus and brown rot fungus for 1 month to 6 months. The monotonous loading test was applied to the specimens based on ASTM D1761-88. The holding power of the nails and weight loss of both OSB and SPF were investigated. Theoretical maximum load of the nailed joints was calculated according to Eurocode5. Results illustrated that the load, stiffness, and energy consumption of the nailed joints showed significant linear decline with the decay time. A linear decline of the ductility coefficient was not obvious, and there was no obvious difference between white rot fungus and brown rot fungus. Effect of decay on the OSB was much greater than the impact on the SPF. The decay grade of the nailed joints was established according to the linear relationship between weight loss and maximum load. Based on Eurocode5, the study calculated the maximum load of the nailed joints and introduced the correction coefficient gamma to better predict the maximum load.