Flexural behavior of indeterminate concrete structures reinforced with embedded FRP bars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0198762" target="_blank" >RIV/00216305:26110/26:0198762 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/chapter/10.1007/978-3-032-09399-8_58?utm_source=researchgate.net&utm_medium=article" target="_blank" >https://link.springer.com/chapter/10.1007/978-3-032-09399-8_58?utm_source=researchgate.net&utm_medium=article</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-032-09399-8_58" target="_blank" >10.1007/978-3-032-09399-8_58</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Flexural behavior of indeterminate concrete structures reinforced with embedded FRP bars

Popis výsledku v původním jazyce

The use of non-metallic composite reinforcement, such as Fiber Reinforced Polymer (FRP), in concrete structures is becoming increasingly common. While the design principles for statically determinate concrete structures reinforced with FRP are well-established, the behavior of statically indeterminate structures, such as continuous beams, remains less understood. Traditionally, in the case of steelreinforced continuous beams, it is possible to assume a certain redistribution of bending moments and to use the principle of linear elastic analysis with limited redistribution in design. However, ACI 440.1R- 15 and the new generation of Eurocode advise against considering moment redistribution in FRPreinforced structures due to the brittle nature of FRP materials and their linear elastic behavior up to failure. Despite the limited number of studies, existing research suggests some moment redistribution may occur in FRP-reinforced continuous beams. This paper explores this potential by presenting the results of an analytical study examining the moment-curvature relationship of concrete sections reinforced with FRP. A parametric study assesses the influence of reinforcement ratio and material properties of concrete on redistribution capacity. The goal is to develop a simplified model enabling moment redistribution in the design of continuous beams reinforced with FRP. By comparing the analytically determined internal forces with experimental results from tests on two-span continuous beams, the study seeks to validate the proposed model. This research contributes to a deeper understanding of FRP-reinforced concrete structures, addressing current design limitations and potentially leading to more efficient and safer design practices.

Název v anglickém jazyce

Flexural behavior of indeterminate concrete structures reinforced with embedded FRP bars

Popis výsledku anglicky

The use of non-metallic composite reinforcement, such as Fiber Reinforced Polymer (FRP), in concrete structures is becoming increasingly common. While the design principles for statically determinate concrete structures reinforced with FRP are well-established, the behavior of statically indeterminate structures, such as continuous beams, remains less understood. Traditionally, in the case of steelreinforced continuous beams, it is possible to assume a certain redistribution of bending moments and to use the principle of linear elastic analysis with limited redistribution in design. However, ACI 440.1R- 15 and the new generation of Eurocode advise against considering moment redistribution in FRPreinforced structures due to the brittle nature of FRP materials and their linear elastic behavior up to failure. Despite the limited number of studies, existing research suggests some moment redistribution may occur in FRP-reinforced continuous beams. This paper explores this potential by presenting the results of an analytical study examining the moment-curvature relationship of concrete sections reinforced with FRP. A parametric study assesses the influence of reinforcement ratio and material properties of concrete on redistribution capacity. The goal is to develop a simplified model enabling moment redistribution in the design of continuous beams reinforced with FRP. By comparing the analytically determined internal forces with experimental results from tests on two-span continuous beams, the study seeks to validate the proposed model. This research contributes to a deeper understanding of FRP-reinforced concrete structures, addressing current design limitations and potentially leading to more efficient and safer design practices.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural 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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2026

Kód důvěrnosti údajů

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

Název statě ve sborníku

12th International Conference on FRP Composites in Civil Engineering (CICE 2025)

ISBN

978-3-032-09399-8

ISSN

2366-2557

e-ISSN

2366-2565

Počet stran výsledku

8

Strana od-do

614-624

Název nakladatele

Springer, Cham

Místo vydání

—

Místo konání akce

Lisboa

Datum konání akce

14. 7. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—