文献类型：期刊文献

中文题名：不同标准体系中结构用规格材目测分级规则的比较

英文题名：Comparison of visual grading rules for structural lumber in different standards

作者：江京辉[1] 吕建雄[1] 任海青[1] 朱长庆[2]

第一作者：江京辉

机构：[1]中国林业科学研究院木材工业研究所,国家林业局木材科学与技术重点实验室,北京100091;[2]江苏柯诺地板有限公司,江苏丹阳212300

年份：2009

期号：6

起止页码：25-29

中文期刊名：南京林业大学学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家“十一五”科技支撑计划(2006BAD18B07)

语种：中文

中文关键词：标准;规格材;目测分级

外文关键词：standard; lumber; visual grade

分类号：S781

摘要：分析比较了我国GB 50005—2003《木结构设计规范》、北美规格材目测分等规则NLGA(2003)、英国针叶材强度目测分级规则BS 4978—2007、国际结构用规格材强度目测分级ISO 9709(2005)和澳大利亚结构用针叶材锯材目测分等标准AS 2858—2008等5种标准的异同。结果表明:中国与北美分等标准基本相同,不同之处是中国分等标准采用国际单位,而北美分等标准采用英制单位;英国与国际分等标准基本相近,结构用规格材都分为两个等级,不同之处为国际分等标准中提出非结构用规格材强度特征值的限定;澳大利亚分等标准中通过密度区分结构用材和非结构用材,并且在对钝棱、轮裂和生长轮平均宽度的计算及界定时,均与其他4种标准不同。此外,笔者提出了对我国结构用规格材目测分等规则的修改建议。
The difference of visual grading rules on dimension lumber among the Chinese standard GB 50005--2003, North American standard NLGA （2003）, British standard BS 4978--2007, International standard ISO 9709 （2005） and Australian standard AS 2858--2008 were analyzed. The results showed that there was the same visual grading rule on di- mension lumber between Chinese standard and North American standard, the only difference was that international unit was used to Chinese standard, and the British unit was used to North America standard; The British standard and the interna- tional standard was similar to the structure dimension lumber with specifications are divided into two grades. The difference was that the strength characteristics of non-structural lumber of international standard was limited. The dimension lumber of Australian standard through the density was graded structural lumber and non-structural lumber. Australian standard on measuring wane, shake and the average width of growth ring was difference from the other four standards. Based on the resuits, some of suggestions were proposed to revise the Chinese visual grading rules for structural lumber.