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Model Uncertainties of FEM Nonlinear Analyses of Concrete Structures

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00300244" target="_blank" >RIV/68407700:21110/16:00300244 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.249.197" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SSP.249.197</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.249.197" target="_blank" >10.4028/www.scientific.net/SSP.249.197</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Model Uncertainties of FEM Nonlinear Analyses of Concrete Structures

  • Original language description

    Advanced numerical simulations are more often used due to the increasing possibilities of computer technology. For material descriptions, generally nonlinear constitutive relations are employed. It is expected that in the near future the reliability of structures will be assessed by use of these sophisticated calculations. For this purpose, it is firstly necessary to evaluate the model uncertainty of the numerical model, because the structural reliability is directly affected by the model uncertainty. Recommended values of model uncertainties differ in individual scientific literary sources. In standard codes the partial safety factor for model uncertainty is set by relatively low value. This value was assessed by empirical way and it seems that such value is valid only for flexural failure. Contemporary numerical simulations indicate larger model uncertainties. Moreover, the value of model uncertainty should be related to particular failure mode. This paper presents a comprehensive procedure for the determination of model uncertainties of nonlinear analyses. In the second part, the value of model uncertainties is derived for punching of slabs.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JN - Civil engineering

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings from 22nd Czech Concrete Day 2015 (print)

  • ISBN

    978-3-03835-675-2

  • ISSN

    1012-0394

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    197-202

  • Publisher name

    Trans Tech Publications Ltd.

  • Place of publication

    Pfaffikon

  • Event location

    Litomyšl

  • Event date

    Nov 25, 2015

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article