Mechanical Fracture Parameters of Concrete Specimens from One-Side-Heated Panels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU125019" target="_blank" >RIV/00216305:26110/17:PU125019 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical Fracture Parameters of Concrete Specimens from One-Side-Heated Panels

Popis výsledku v původním jazyce

This study deals with the characterization of fire damaged concrete panels. The attention is paid to determination of selected mechanical fracture parameters via evaluation of fracture tests of specimens from the concrete panels after their exposure to elevated temperatures. Experimental panels were heated according to the dynamic temperature-time curve ISO 834 (given by EN 1991-1-2.2010) with a subsequent maintained maximum nominal temperature 550, 600, 800 and 1000 °C for 60 minutes. Test specimens were obtained by cutting out from concrete panels after performing fire tests and provided with initial central edge notch. These specimens were tested in three-point bending test and loaded under displacement control. The load versus displacement and load versus crack mouth opening displacement diagrams were obtained and selected fracture parameters were subsequently evaluated: modulus of elasticity, effective crack elongation, effective fracture toughness and specific fracture energy.

Název v anglickém jazyce

Mechanical Fracture Parameters of Concrete Specimens from One-Side-Heated Panels

Popis výsledku anglicky

This study deals with the characterization of fire damaged concrete panels. The attention is paid to determination of selected mechanical fracture parameters via evaluation of fracture tests of specimens from the concrete panels after their exposure to elevated temperatures. Experimental panels were heated according to the dynamic temperature-time curve ISO 834 (given by EN 1991-1-2.2010) with a subsequent maintained maximum nominal temperature 550, 600, 800 and 1000 °C for 60 minutes. Test specimens were obtained by cutting out from concrete panels after performing fire tests and provided with initial central edge notch. These specimens were tested in three-point bending test and loaded under displacement control. The load versus displacement and load versus crack mouth opening displacement diagrams were obtained and selected fracture parameters were subsequently evaluated: modulus of elasticity, effective crack elongation, effective fracture toughness and specific fracture energy.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA16-18702S" target="_blank" >GA16-18702S: Problematika porušování v blízkosti rozhraní plniva a matrice kompozitů na silikátové bázi (AMIRI)</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

SP Report: Proceedings from the 5 th International Workshop on Concrete Spalling

ISBN

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ISSN

0284-5172

e-ISSN

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Počet stran výsledku

7

Strana od-do

105-111

Název nakladatele

RISE Research Institute of Sweden AB

Místo vydání

Boras

Místo konání akce

Boras

Datum konání akce

12. 10. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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