Glulam – closed form solution using statistical smearing, truncating, calibrating

IF 0.9 Q4 ENGINEERING, CIVIL
H. Milner
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引用次数: 0

Abstract

ABSTRACT This paper describes a relatively simple closed form formula for predicting the strength of glulam assemblies in bending about the major axis based on statistical engineering mechanics using the tension strength of finger jointed of bonded lamination pairs. It has been calibrated against the strengths of full-size glulam beams ranging in depths from 150 mm to 1200 mm over spans of 2.7 m up to 19.5 m. Comparisons are made at both the mean strength and 5th percentile strength levels with the latter drawing attention to the fact that all test series invariably involve observation of minimum values that means the statistical distributions are invariably truncated. For Weibull distributions, this has an impact on the shape factor and, therefore, the local coefficient of variation of the lower tail, which plays an important role in size effects in glulam and potentially has wider implications.
胶合板-封闭形式溶液采用统计涂抹,截断,校准
摘要本文基于统计工程力学,利用胶合层合副手指接头的抗拉强度,给出了一个相对简单的封闭形式公式,用于预测胶合层合件在主轴弯曲时的强度。它已根据全尺寸胶合木梁的强度进行校准,深度从150毫米到1200毫米,跨度从2.7米到19.5米。在平均强度和第5百分位强度水平上进行比较,后者提请注意这样一个事实,即所有测试系列总是涉及最小值的观察,这意味着统计分布总是被截断。对于威布尔分布,这会影响形状因子,从而影响下尾的局部变异系数,后者在胶合材的尺寸效应中起着重要作用,并可能具有更广泛的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.50
自引率
0.00%
发文量
31
期刊介绍: The Australian Journal of Structural Engineering (AJSE) is published under the auspices of the Structural College Board of Engineers Australia. It fulfils part of the Board''s mission for Continuing Professional Development. The journal also offers a means for exchange and interaction of scientific and professional issues and technical developments. The journal is open to members and non-members of Engineers Australia. Original papers on research and development (Technical Papers) and professional matters and achievements (Professional Papers) in all areas relevant to the science, art and practice of structural engineering are considered for possible publication. All papers and technical notes are peer-reviewed. The fundamental criterion for acceptance for publication is the intellectual and professional value of the contribution. Occasionally, papers previously published in essentially the same form elsewhere may be considered for publication. In this case acknowledgement to prior publication must be included in a footnote on page one of the manuscript. These papers are peer-reviewed as new submissions. The length of acceptable contributions typically should not exceed 4,000 to 5,000 word equivalents. Longer manuscripts may be considered at the discretion of the Editor. Technical Notes typically should not exceed about 1,000 word equivalents. Discussions on a Paper or Note published in the AJSE are welcomed. Discussions must address significant matters related to the content of a Paper or Technical Note and may include supplementary and critical comments and questions regarding content.
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