Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU123799" target="_blank" >RIV/00216305:26110/17:PU123799 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1877705817324979" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1877705817324979</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2017.05.357" target="_blank" >10.1016/j.proeng.2017.05.357</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters

Popis výsledku v původním jazyce

Structural concrete of the building of Vítkovice railway station from 1970s is characterized via mechanical fracture parameters. In this paper, six core-drilled cylindrical specimens with diameter of 75 mm were provided by a Chevron type notch of depth of 12 mm. Three-point bending fracture tests were conducted on these specimens supported as beams with the span of 170 mm. Load vs. deflection and load vs. crack mouth opening displacement diagrams were recorded from which modulus of elasticity (E), fracture toughness (KIc) and fracture energy (GF) were determined using linear elastic fracture mechanics approach and work-offracture method. Mean values of these parameters (with their coefficient of variability) were obtained as follows: E = 39.4 GPa (29.1 %), KIc = 0.90 MPa m1/2 (18.5 %), GF = 174.0 J/m2 (26.0 %). These parameters can serve as first guess or indicative values for structural assessment and life-time predictions.

Název v anglickém jazyce

Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters

Popis výsledku anglicky

Structural concrete of the building of Vítkovice railway station from 1970s is characterized via mechanical fracture parameters. In this paper, six core-drilled cylindrical specimens with diameter of 75 mm were provided by a Chevron type notch of depth of 12 mm. Three-point bending fracture tests were conducted on these specimens supported as beams with the span of 170 mm. Load vs. deflection and load vs. crack mouth opening displacement diagrams were recorded from which modulus of elasticity (E), fracture toughness (KIc) and fracture energy (GF) were determined using linear elastic fracture mechanics approach and work-offracture method. Mean values of these parameters (with their coefficient of variability) were obtained as follows: E = 39.4 GPa (29.1 %), KIc = 0.90 MPa m1/2 (18.5 %), GF = 174.0 J/m2 (26.0 %). These parameters can serve as first guess or indicative values for structural assessment and life-time predictions.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Procedia Engineering: Structural and Physical Aspects of Construction Engineering

ISBN

978-80-553-2643-6

ISSN

1877-7058

e-ISSN

—

Počet stran výsledku

5

Strana od-do

414-418

Název nakladatele

Elsevier

Místo vydání

Netherlands

Místo konání akce

High Tatras, Štrbské Pleso

Datum konání akce

9. 11. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000416996800059