Reliability‑based analysis of the flexural strength of concrete beams reinforced with hybrid BFRP and steel rebars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00559699" target="_blank" >RIV/68378297:_____/22:00559699 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s43452-022-00493-7" target="_blank" >https://doi.org/10.1007/s43452-022-00493-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s43452-022-00493-7" target="_blank" >10.1007/s43452-022-00493-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reliability‑based analysis of the flexural strength of concrete beams reinforced with hybrid BFRP and steel rebars

Popis výsledku v původním jazyce

The durability of reinforced concrete structures has always been an important problem in civil engineering because steelnrebars rust easily. Therefore, fiber-reinforced polymer (FRP) rebars possessing good corrosion resistance, low weight, andneasy construction has become a substitute for reinforcement. However, since FRP rebar has a low elastic modulus and is anbrittle failure material, large deflections and cracks occur in the FRP concrete beam with no obvious warning before failure.nA hybrid reinforced concrete beam that combines the advantages of steel rebar and FRP rebar is a good structural form.nThe reliability of hybrid reinforced beams must be analyzed to ensure their safety. A flexural performance test of the hybridnbasalt FRP (BFRP)–steel-reinforced beam was performed, the failure mode was explored, and the numerical models werenestablished. The accuracy of the models was verified by comparing them with the test results. The numerical models werenused to establish a database (630 cases) that was combined with existing research results (33 cases), to obtain the statisticsnof the uncertainty of the prediction model. Reliability analysis of a large-scale design space was conducted to calibrate thenBFRP. Finally, the average deviation from the target reliability index suggested that the values of the partial coefficient ofnthe materials range from 1.2 to 1.4.

Název v anglickém jazyce

Reliability‑based analysis of the flexural strength of concrete beams reinforced with hybrid BFRP and steel rebars

Popis výsledku anglicky

The durability of reinforced concrete structures has always been an important problem in civil engineering because steelnrebars rust easily. Therefore, fiber-reinforced polymer (FRP) rebars possessing good corrosion resistance, low weight, andneasy construction has become a substitute for reinforcement. However, since FRP rebar has a low elastic modulus and is anbrittle failure material, large deflections and cracks occur in the FRP concrete beam with no obvious warning before failure.nA hybrid reinforced concrete beam that combines the advantages of steel rebar and FRP rebar is a good structural form.nThe reliability of hybrid reinforced beams must be analyzed to ensure their safety. A flexural performance test of the hybridnbasalt FRP (BFRP)–steel-reinforced beam was performed, the failure mode was explored, and the numerical models werenestablished. The accuracy of the models was verified by comparing them with the test results. The numerical models werenused to establish a database (630 cases) that was combined with existing research results (33 cases), to obtain the statisticsnof the uncertainty of the prediction model. Reliability analysis of a large-scale design space was conducted to calibrate thenBFRP. Finally, the average deviation from the target reliability index suggested that the values of the partial coefficient ofnthe materials range from 1.2 to 1.4.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Archives of Civil and Mechanical Engineering

ISSN

1644-9665

e-ISSN

2083-3318

Svazek periodika

22

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

20

Strana od-do

171

Kód UT WoS článku

000831210800001

EID výsledku v databázi Scopus

2-s2.0-85135004474