Statistical Analysis of Data for Timber Strengths

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Abstrakt

Statistical analyses are performed for material strength parameters from a large number of specimens of structural timber. Non-parametric statistical analysis and fits have been investigated for the following distribution types: Normal, Lognormal, 2 parameter Weibull and 3-parameter Weibull. The statistical fits have generally been made using all data and the lower tail of the data. The Maximum Likelihood Method and the Least Square Technique have been used to estimate the statistical parameters in the selected distributions. The results show that the 2-parameter Weibull distribution gives the best fits to the data available, especially if tail fits are used whereas the Log Normal distribution generally gives a poor fit and larger coefficients of variation, especially if tail fits are used. The implications on the reliability level of typical structural elements and on partial safety factors for timber are investigated.
OriginalsprogEngelsk
TitelReliability and Optimization of Structural Systems : Proceedings of the 10th IFIP WG7.5 working conference on reliability and optimization of structural systems
RedaktørerH. Furuta, M. Dogaki, M. Sakano
Antal sider10
Udgivelses stedHolland
ForlagCRC Press/Balkema
Publikationsdato2003
Sider131-140
ISBN (Trykt)90-5809-553-3
StatusUdgivet - 2003
BegivenhedIFIP WG7.5 Working Conference on Reliability and Optimization of Structural Systems - Osaka, Japan
Varighed: 25 mar. 200227 mar. 2002
Konferencens nummer: 10

Konference

KonferenceIFIP WG7.5 Working Conference on Reliability and Optimization of Structural Systems
Nummer10
LandJapan
ByOsaka
Periode25/03/200227/03/2002

Emneord

  • Timber
  • Stochastic model
  • Statistical analysis
  • Characteristic values
  • Partial safety factors

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  • Citationsformater

    Sørensen, J. D. (2003). Statistical Analysis of Data for Timber Strengths. I H. Furuta, M. Dogaki, & M. Sakano (red.), Reliability and Optimization of Structural Systems: Proceedings of the 10th IFIP WG7.5 working conference on reliability and optimization of structural systems (s. 131-140). CRC Press/Balkema.