nach oben

European Journal of Wood and Wood Products

Erschienen in:

01.05.2015 | Original

Probabilistic modelling of the tensile related material properties of timber boards and finger joint connections

verfasst von: Gerhard Fink, Jochen Kohler

Erschienen in: European Journal of Wood and Wood Products | Ausgabe 3/2015

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

In the present paper a probabilistic approach for modelling the tensile strength and tensile stiffness properties of timber boards and finger joint connections is presented. The approach includes the geometrical setup of timber boards (the position of knot clusters) and a hierarchical representation of two strength and stiffness related indicators. One indicator to describe the mean material properties of timber boards and one indicator to describe the lengthwise variability due to knots. Based on the two indicators the tensile strength and tensile stiffness of timber board sections and finger joint connections are estimated using material models. The application of the approach is illustrated. For this purpose, finger joint connections and timber boards with different length are simulated and the material properties are compared with values proposed in the literature.

Vorheriger Artikel Study of stress distribution and stress concentration factor in notched wood pieces with cohesive surfaces

Nächster Artikel Prediction of tension properties of cork from its physical properties using neural networks

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 340 Zeitschriften

aus folgenden Fachgebieten:

Bauwesen + Immobilien
Business IT + Informatik
Finance + Banking
Management + Führung
Marketing + Vertrieb
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Barrett J, Lam F, Lau W (1995) Size effects in visually graded softwood structural lumber. J Material Civil Eng 7(1):19–30CrossRef

Benjamin JR, Cornell CA (1970) Probability, statistics, and desision for civil engineers. MCGraw-Hill Book Company

Blaß H, Frese M, Glos P, Denzler J, Linenmann P, Ranta-Maunus A (2008) Reliability of spruce-glulam with modified set-up (in German), vol 11. KIT Scientific Publishing

Colling F (1990) Bending strength of glulam beams depending on strength related parameters (thesis, in German). Versuchsanst. für Stahl, Holz und Steine

Colling F, Dinort R (1987) The knot frequency of conifer timber used in glulam factories (in German). Holz Roh- Werkst 45(1):23–26CrossRef

Czmoch I, Thelandersson S, Larsen H (1991) Effect of within member variability on bending strength of structural timber. In: Proceedings of the 24th Meeting, International Council for Research and Innovation in Building and Construction, Working Commission W18 - Timber Structures, Oxford, United Kingdom, CIB-W18, Paper No. 24-6-3

DIN 4074–1 (2008) Strength grading of wood—Part 1: Coniferous sawn timber; German version

Ehlbeck J, Colling F, Görlacher R (1985) Influence of fingerjointed lamellae on the bending strength of glulam beams (in German). Holz Roh- Werkst 43(8):369–373CrossRef

EN 1194 (1999) Timber structures—glued laminated timber—strength classes and determination of characteristic values; German version

EN 14081–4 (2009) Timber structures—strength graded structural timber with rectangular crosssection—Part 4. In: Machine grading—grading machine settings for machine controlled systems; German version

EN 1912 (2012) Structural timber—strength classes—assignment of visual grades and species; German version

EN 338 (2010) Structural timber—strength classes; german version

EN 384 (2004) Determination of characteristic values of mechanical properties and density; german version

EN 408 (2003) Timber structures—structural timber and glued laminated timber - Determination of some physical and mechanical properties; German version

Faber M (2012) Statistics and Probability Theory. In Pursuit of Engineering Decision Support, vol 18. Springer

Fink G (2014) Influence of varying material properties on the load-bearing capacity of glued laminated timber—Diss. ETH NO. 21746. PhD thesis, ETH Zurich, Zurich, Switzerland

Fink G, Kohler J (2011) Multiscale Variability of Stiffness Properties of Timber Boards. In: ICASP Applications of Statistics and Probability in Civil Engineering. Zurich, Switzerland

Fink G, Kohler J (2012) Non-destructive test to determine the modulus of elasticity of timber boards (in German). IBK Report No. 339, ETH Zurich, Zurich

Fink G, Kohler J (2014) Model for the prediction of the tensile strength and tensile stiffness of knot clusters within structural timber. Eur J Wood Prod 72(3):331–341CrossRef

Giudiceandrea F (2005) Stress grading lumber by a combination of vibration stress waves and x-ray scanning. In: Proceedings of the 11th International Conference on Scanning Technology and Process optimization in the wood Industry (ScanTech 2005), Las Vegas

Görlacher R (1984) A new method for determining the modulus of elasticity of timber (in German. Holz Roh- Werkst 42:219–222CrossRef

Görlacher R (1990) Stress grading of laminates according to DIN 4074 by measuring longitudinal vibrations (in German). Bauingenieur 65:517–522

Heimeshoff B, Glos P (1980) Tensile Strength and MOE in Bending of Spruce Laminates (in German). Holz Roh- Werkst 38(2):51–59

Isaksson T (1999) Modelling the variability of bending strength in structural timber. PhD thesis, Lund Institute of Technology

JCSS (2006) Probabilistic Model Code Part III - Resistance Models (3.05 Timber). http://www.jcss.byg.dtu.dk/Publications/Probabilistic_Model_Code

Kersken-Bradley M, Rackwitz R (1991) Stochastic modeling of material properties and quality control. In: JCSS Working Document, IABSE-publication

Kline D, Woeste F, Bendtsen B (1986) Stochastic model for modulus of elasticity of lumber. Wood and Fiber Science 18:228–238

Köhler J, Faber MH (2004) Proposal for a probabilistic model code for design of timber structures. In: Proceedings of the 37th Meeting, International Council for Research and Innovation in Building and Construction, Working Commission W18 - Timber Structures, Edinburgh, UK, CIB-W18, Paper No. 37–104-1

Köhler J, Sørensen JD, Faber MH (2007) Probabilistic modeling of timber structures. Structural safety 29(4):255–267

Kohler J, Brandner R, Thiel A, Schickhofer G (2013) Probabilistic characterisation of the length effect for parallel to the grain tensile strength of central european spruce. Engineering Structures 56:691–697CrossRef

Lam F, Varoglu E (1991a) Variation of tensile strength along the length of lumber. Wood Sci Technol 25(5):351–359CrossRef

Lam F, Varoglu E (1991b) Variation of tensile strength along the length of lumber. Wood Sci Technol 25(6):449–458CrossRef

Madsen B, Buchanan AH (1986) Size effects in timber explained by a modified weakest link theory. Canadian Journal of Civil Engineering 13(2):218–232CrossRef

Pellicane P, Stanfill-McMillan K, Tichy R (1987) Effects of knots near the fingers of finger-jointed dimension lumber. Forest products journal 37(5):13–16

Samson M (1985) Potential of finger-jointed lumber for machine stress-rated lumber grades. Forest Products Journal 35(7/8):20–24

SIA 265–1,(2009) Timber Structures - Supplementary Specifications. German version, Schweizer Ingenieur- und Architektenverein, Zurich, Switzerland

Taylor SE, Bender DA (1991) Stochastic model for localized tensile strength and modulus of elasticity in lumber. Wood and Fiber Science 23(4):501–519

Weibull W (1939) A statistical theory of strength of materials. Nr. 151, Royal Swedish Institute for Engineering Research

Titel: Probabilistic modelling of the tensile related material properties of timber boards and finger joint connections
verfasst von: Gerhard Fink
Jochen Kohler
Publikationsdatum: 01.05.2015
Verlag: Springer Berlin Heidelberg
Erschienen in: European Journal of Wood and Wood Products / Ausgabe 3/2015
Print ISSN: 0018-3768
Elektronische ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-015-0895-z

Springer Professional

Abstract

Bitte loggen Sie sich ein, um Zugang zu Ihrer Lizenz zu erhalten.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Springer Professional "Wirtschaft"

Springer Professional "Technik"

Weitere Artikel der Ausgabe 3/2015

Life cycle assessment of wood construction according to the normative standards

Superheated steam application to optimize the kiln drying of rubberwood (Hevea brasiliensis)

Studies on drying of imperial bamboo

Surface wettability of short-term thermo-mechanically densified wood veneers

Measuring Young’s modulus of a wooden bar using longitudinal vibration without measuring its weight

Processing roughness of sanded beech surfaces