Parametric study of flexural strengthening of concrete beams with prestressed hybrid reinforced polymer

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F19%3A00006766" target="_blank" >RIV/46747885:24620/19:00006766 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/12/22/3790" target="_blank" >https://www.mdpi.com/1996-1944/12/22/3790</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma12223790" target="_blank" >10.3390/ma12223790</a>

Result language

angličtina

Original language name

Parametric study of flexural strengthening of concrete beams with prestressed hybrid reinforced polymer

Original language description

Strengthening method of using hybrid fiber reinforced polymer is an effective way to increase the strengthening efficiency and lower the cost. This paper focuses on simulating the flexural behavior of reinforced concrete beam strengthened by prestressed C/GFRP (Carbon-Glass hybrid Fiber Reinforced Polymer) with different hybrid ratio and prestress level. An elastoplastic damage constitution is used to simulate the mechanical behavior of concrete. A cohesive zone model under mixed mode is adopted to describe the debonding behavior of the FRP-concrete and concrete-steel interface. The results show good agreement with experiment in the load-deflection curve, load-stress curve of steel and HFRP. And the failure mode of concrete and FRP debonding obtained from numerical simulation is the same as the test. Considering the improvement of bending capacity, stiffness and ductility of the strengthened beam in this paper, the best hybrid ratio of carbon to glass fiber is 1:1, and the suitable prestress level is between 30%-50% of its ultimate strength.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/EF16_025%2F0007293" target="_blank" >EF16_025/0007293: Modular platform for autonomous chassis of specialized electric vehicles for freight and equipment transportation</a><br>

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

12

Issue of the periodical within the volume

22

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

1-19

UT code for WoS article

000502284400147

EID of the result in the Scopus database

2-s2.0-85075795290