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Probability calibration of deformation factor for timber roofs in the Polish mountain zones

The resistance parameters of timber material structures decrease with time, depending on the type of load and timber classes. Strength and Modulus of Elasticity reduction effects, referred to as creeprupture effects, due to long term loading at high stress ratio levels are known for many materials.... Full description

Journal Title: MATEC Web of Conferences 2018, Vol.163, p.07003
Main Author: Domański, Tomasz
Other Authors: Kmiecik, Kamil
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 2261-236X ; DOI: http://dx.doi.org/10.1051/matecconf/201816307003
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recordid: crossref10.1051/matecconf/201816307003
title: Probability calibration of deformation factor for timber roofs in the Polish mountain zones
format: Article
creator:
  • Domański, Tomasz
  • Kmiecik, Kamil
subjects:
  • Reliability Analysis
  • Timber
  • Stress Ratio
  • Reliability Aspects
  • Probabilistic Models
  • Reduction
  • Roofs
  • Snow
  • Parameter Estimation
  • Probabilistic Methods
  • Modulus of Elasticity
  • Deformation
  • Timber (Structural)
  • Statistical Analysis
  • Limit States
  • Computer Simulation
  • Process Parameters
ispartof: MATEC Web of Conferences, 2018, Vol.163, p.07003
description: The resistance parameters of timber material structures decrease with time, depending on the type of load and timber classes. Strength and Modulus of Elasticity reduction effects, referred to as creeprupture effects, due to long term loading at high stress ratio levels are known for many materials. Timber materials are highly affected by this reduction in strength and deflection with duration of load. Characteristic values of load duration and deformation factors are calibrated by means of using probabilistic methods. The reliability is estimated by means of using representative short-and long-term limit states. Time variant reliability aspects are taken into account using a simple representative limit state with time variant strength and simulation of whole life time load processes. The parameters in these models are fitted by the Maximum Likelihood Methods using the data relevant for Polish structural timber . Based on Polish snow data over 45 years from mountain zones in: Zakopane –...
language: eng
source:
identifier: E-ISSN: 2261-236X ; DOI: http://dx.doi.org/10.1051/matecconf/201816307003
fulltext: fulltext
issn:
  • 2261236X
  • 2261-236X
url: Link


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titleProbability calibration of deformation factor for timber roofs in the Polish mountain zones
creatorDomański, Tomasz ; Kmiecik, Kamil
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subjectReliability Analysis ; Timber ; Stress Ratio ; Reliability Aspects ; Probabilistic Models ; Reduction ; Roofs ; Snow ; Parameter Estimation ; Probabilistic Methods ; Modulus of Elasticity ; Deformation ; Timber (Structural) ; Statistical Analysis ; Limit States ; Computer Simulation ; Process Parameters;
descriptionThe resistance parameters of timber material structures decrease with time, depending on the type of load and timber classes. Strength and Modulus of Elasticity reduction effects, referred to as creeprupture effects, due to long term loading at high stress ratio levels are known for many materials. Timber materials are highly affected by this reduction in strength and deflection with duration of load. Characteristic values of load duration and deformation factors are calibrated by means of using probabilistic methods. The reliability is estimated by means of using representative short-and long-term limit states. Time variant reliability aspects are taken into account using a simple representative limit state with time variant strength and simulation of whole life time load processes. The parameters in these models are fitted by the Maximum Likelihood Methods using the data relevant for Polish structural timber . Based on Polish snow data over 45 years from mountain zones in: Zakopane –...
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