Long-term behavior of concrete slabs prestressed with CFRP rebars subjected to four-point bending

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322720" target="_blank" >RIV/68407700:21110/18:00322720 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0950061818320208" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061818320208</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2018.08.084" target="_blank" >10.1016/j.conbuildmat.2018.08.084</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long-term behavior of concrete slabs prestressed with CFRP rebars subjected to four-point bending

Popis výsledku v původním jazyce

The present study investigates behavior of concrete slabs prestressed with carbon-fiber-reinforced polymers (CFRP) subjected to four-point bending. The main experimental set comprised 10 identical 4.5 m long specimens from which 8 were subjected to quasi-static loading until failure. The remaining two specimens were exposed to sustained loading with duration of 1 and 7 years, and subsequently were loaded until failure. The main objective of this study is to analyze the long-term behavior in order to assess the assumption of several authors that no significant creep or stress relaxation occurs in CFRP prestressed rebars. To achieve that, the experimental data were compared to the results of a complex finite element model in which the CFRP is modeled by a linear elastic material (without creep) which allowed us to confirm the initial hypothesis that no considerable creep or stress relaxation occurs in the prestressed CFRP rebars.

Název v anglickém jazyce

Long-term behavior of concrete slabs prestressed with CFRP rebars subjected to four-point bending

Popis výsledku anglicky

The present study investigates behavior of concrete slabs prestressed with carbon-fiber-reinforced polymers (CFRP) subjected to four-point bending. The main experimental set comprised 10 identical 4.5 m long specimens from which 8 were subjected to quasi-static loading until failure. The remaining two specimens were exposed to sustained loading with duration of 1 and 7 years, and subsequently were loaded until failure. The main objective of this study is to analyze the long-term behavior in order to assess the assumption of several authors that no significant creep or stress relaxation occurs in CFRP prestressed rebars. To achieve that, the experimental data were compared to the results of a complex finite element model in which the CFRP is modeled by a linear elastic material (without creep) which allowed us to confirm the initial hypothesis that no considerable creep or stress relaxation occurs in the prestressed CFRP rebars.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Construction and Building Materials

ISSN

0950-0618

e-ISSN

1879-0526

Svazek periodika

188

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

781-792

Kód UT WoS článku

000447579600069

EID výsledku v databázi Scopus

2-s2.0-85052445612