A stochastic model for the capacity estimation of non-seismically designed beam-column joints

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F18%3A39912627" target="_blank" >RIV/00216275:25510/18:39912627 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.phdsymp2018.eu/dwn/Proceedings%20of%20the%2012th%20fib%20PhD%20Symposium.pdf" target="_blank" >http://www.phdsymp2018.eu/dwn/Proceedings%20of%20the%2012th%20fib%20PhD%20Symposium.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A stochastic model for the capacity estimation of non-seismically designed beam-column joints

Popis výsledku v původním jazyce

An analytical model based on nonlinear fracture mechanics was employed to evaluate the shear capacity of a substandard beam-column joint retrofitted by externally applied post-tensioned bars. The strength of the reference specimen was predicted as the capacity of plain concrete under tension with microcracks in the fracture process zone smeared over a band - i.e. crack band theory. Crack minimization effects in the specimens retrofitted by post-tensioned bars were considered by strain energy stored in the bars per unit fracture surface area. Due to the inherent uncertainty in material constitutive laws, the analytical model was evolved to a stochastic level to propose a more advanced model for estimating the capacity. It is found that the experimental results were within the prominent range of Probability Density Functions (i.e. mean ± one standard deviation) of the estimated joint tensile stress.

Název v anglickém jazyce

A stochastic model for the capacity estimation of non-seismically designed beam-column joints

Popis výsledku anglicky

An analytical model based on nonlinear fracture mechanics was employed to evaluate the shear capacity of a substandard beam-column joint retrofitted by externally applied post-tensioned bars. The strength of the reference specimen was predicted as the capacity of plain concrete under tension with microcracks in the fracture process zone smeared over a band - i.e. crack band theory. Crack minimization effects in the specimens retrofitted by post-tensioned bars were considered by strain energy stored in the bars per unit fracture surface area. Due to the inherent uncertainty in material constitutive laws, the analytical model was evolved to a stochastic level to propose a more advanced model for estimating the capacity. It is found that the experimental results were within the prominent range of Probability Density Functions (i.e. mean ± one standard deviation) of the estimated joint tensile stress.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 12th fib International PhD Symposium in Civil Engineering

ISBN

978-80-01-06401-6

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

7

Strana od-do

813-819

Název nakladatele

České vysoké učení technické v Praze

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

29. 8. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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