Probabilistic characterisation of the length effect for parallel to the grain tensile strength of Central European spruce

被引：8

作者：

Kohler, J. ^{[1
]}

Brandner, R. ^{[2
]}

Thiel, A. B. ^{[3
]}

Schickhofer, G. ^{[2
]}

机构：

[1] Norwegian Univ Sci & Technol, NTNU, Dept Struct Engn, NO-7491 Trondheim, Norway

[2] Graz Univ Technol, Inst Timber Engn & Wood Technol, Competence Ctr Holz Bau Forsch Gmbh, A-8010 Graz, Austria

[3] Competence Ctr Holz Bau Forsch Gmbh, A-8010 Graz, Austria

来源：

ENGINEERING STRUCTURES | 2013年 / 56卷

关键词：

Stochastic model; Local strength characteristics; Central European spruce; Length effects; Knot area ratio; Censored data analysis; CORRELATED LUMBER PROPERTIES; RECTANGULAR CROSS-SECTION; STRESS-DISTRIBUTION; VOLUME; TIMBER; MODEL; BEAM;

D O I：

10.1016/j.engstruct.2013.05.048

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The paper presents a probabilistic model characterising tensile strength parallel to grain of Central European spruce boards without longitudinal joints. The effect of length of members on strength is considered explicitly by considering a member by a serial arrangement of weak sections triggered by major knots of knot clusters. In order to demonstrate the applicability of the proposed model the model parameters are calibrated based on the analysis of three samples of spruce of Switzerland (Mischler-Schrepfer, 2000 [25]) and Austria (Schickhofer and Augustin, 2001 [28]), in total 460 boards tested in full size. This model might serve as basis for studies concerning the length effect of boards relevant for solid timber structures as well as basis for judging the length effect of finger jointed construction timber and glulam, and as starting point for modelling the process of proof loading. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：691 / 697

页数：7

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