Probabilistic design of fibre concrete structures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28399269%3A_____%2F17%3AN0000004" target="_blank" >RIV/28399269:_____/17:N0000004 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1757-899X/246/1/012004" target="_blank" >http://dx.doi.org/10.1088/1757-899X/246/1/012004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/246/1/012004" target="_blank" >10.1088/1757-899X/246/1/012004</a>

Result language

angličtina

Original language name

Probabilistic design of fibre concrete structures

Original language description

Advanced computer simulation is recently well-established methodology for evaluation of resistance of concrete engineering structures. The nonlinear finite element analysis enables to realistically predict structural damage, peak load, failure, post-peak response, development of cracks in concrete, yielding of reinforcement, concrete crushing or shear failure. The nonlinear material models can cover various types of concrete and reinforced concrete: ordinary concrete, plain or reinforced, without or with prestressing, fibre concrete, (ultra) high performance concrete, lightweight concrete, etc. Advanced material models taking into account fibre concrete properties such as shape of tensile softening branch, high toughness and ductility are described in the paper. Since the variability of the fibre concrete material properties is rather high, the probabilistic analysis seems to be the most appropriate format for structural design and evaluation of structural performance, reliability and safety. The presented combination of the nonlinear analysis with advanced probabilistic methods allows evaluation of structural safety characterized by failure probability or by reliability index respectively. Authors offer a methodology and computer tools for realistic safety assessment of concrete structures; the utilized approach is based on randomization of the nonlinear finite element analysis of the structural model. Uncertainty of the material properties or their randomness obtained from material tests are accounted in the random distribution. Furthermore, degradation of the reinforced concrete materials such as carbonation of concrete, corrosion of reinforcement, etc. can be accounted in order to analyze life-cycle structural performance and to enable prediction of the structural reliability and safety in time development. The results can serve as a rational basis for design of fibre concrete engineering structures based on advanced nonlinear computer analysis. The presented methodology is illustrated on results from two probabilistic studies with different types of concrete structures related to practical applications and made from various materials (with the parameters obtained from real material tests).

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Article name in the collection

9th International Conference FIBRE CONCRETE 2017 Collection of papers

ISBN

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ISSN

1757-8981

e-ISSN

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Number of pages

10

Pages from-to

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Publisher name

Institute of Physics Publishing

Place of publication

Prague, Czech Republic

Event location

Prague, Czech Republic

Event date

Sep 13, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000423733300004