文献类型：会议论文

英文题名：Strength properties of structural FJ Chinese fir lumber

作者：Zhou, Haibin[1]

第一作者：周海宾

通信作者：Zhou, H.|[a0005a885ce604ee8d88b]周辉;[a00051c5ec97ddc83f0bd]周虹;[a0005dbe2ed8f32154ebf]周浩;[a0005a3c2be1759ae35e5]周红;[a00056ed1ca03b9846a53]周昊;[a0005cd7a254ecff6c338]周昊;[a0005e6d21def0c6460c4]周慧;[a0005879b44aa07f4cc20]周浩;[a00051f8b7e122250f1ec]周华;[a000589baba84879faf92]周慧;

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China

会议论文集：Future Control and Automation - Proceedings of the 2nd International Conference on Future Control and Automation, ICFCA 2012

会议日期：July 1, 2012 - July 2, 2012

会议地点：Changsha, China

语种：英文

外文关键词：Automation - Bending strength - Grading - Tensile strength

年份：2012

摘要：As a good building material, structural Finger-jointed (FJ) lumber are used mainly in structural applications. The paper evaluated strength properties of structural FJ Chinese fir lumber. Lumber was sawn from the logs following a pattern typically used in China to maximize the volume of recovered sawn timbers. After kiln-drying, the rough-sawed lumber was planned to 4.5 cm thick, 9.0 cm wide and 100cm long. The lumber pieces were assigned to two groups according to their dynamical MOE. FJ lumber was produced by cutting a series of sloping fingers on the end of the wood pieces to be joined and interlocking the two pieces by MDI glue. The FJ lumber was nondestructively tested using edge-wise bending, longitudinal and transversal vibration methods respectively. After three methods, tensile and bending strengths of FJ lumber were tested. The results showed that machine grading can help the finger joint played more active role, and dynamical MOE was a good indicator of the static MOE. ? 2012 Springer-Verlag.