Strengthening of short circular columns using FRP materials – determining the effect of confinement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU119502" target="_blank" >RIV/00216305:26110/16:PU119502 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scientific.net/KEM.691.61.pdf" target="_blank" >http://www.scientific.net/KEM.691.61.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.691.61" target="_blank" >10.4028/www.scientific.net/KEM.691.61</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Strengthening of short circular columns using FRP materials – determining the effect of confinement

Popis výsledku v původním jazyce

This paper is addicted to strengthening of loadbearing reinforced concrete vertical members by composite materials. These modern materials are used more and more in the last years. Using of the FRP fabrics as confinement has several advantages but, there are some questions within the frame of design (such as determining the compressive strength of confined concrete and limit strain of confined concrete). An assessment of influence of the confinement on the members (its load bearing capacity and ductility) is necessary for design. There are a large number of analytical formulas, prescriptive approaches and prescriptions, which specify the resulting influence on the confinement. The paper draws attention to the considerable dispersion between these obtained results. The article presents an analysis of an influence of confinement on reinforced concrete columns, which are wrapped with FRP fabric. The obtained theoretical results were compared with a real behaviour of several samples of confined concrete columns. The short reinforced concrete circular columns were used as the experimental samples. The high to the diameter ratio of the columns was 2:1, thus, an influence of slenderness to loadbearing capacity of the column can be neglected. Therefore, the influence of confinement can be maximized and the dispersion of results according to different methodologies can be emphasized.

Název v anglickém jazyce

Strengthening of short circular columns using FRP materials – determining the effect of confinement

Popis výsledku anglicky

This paper is addicted to strengthening of loadbearing reinforced concrete vertical members by composite materials. These modern materials are used more and more in the last years. Using of the FRP fabrics as confinement has several advantages but, there are some questions within the frame of design (such as determining the compressive strength of confined concrete and limit strain of confined concrete). An assessment of influence of the confinement on the members (its load bearing capacity and ductility) is necessary for design. There are a large number of analytical formulas, prescriptive approaches and prescriptions, which specify the resulting influence on the confinement. The paper draws attention to the considerable dispersion between these obtained results. The article presents an analysis of an influence of confinement on reinforced concrete columns, which are wrapped with FRP fabric. The obtained theoretical results were compared with a real behaviour of several samples of confined concrete columns. The short reinforced concrete circular columns were used as the experimental samples. The high to the diameter ratio of the columns was 2:1, thus, an influence of slenderness to loadbearing capacity of the column can be neglected. Therefore, the influence of confinement can be maximized and the dispersion of results according to different methodologies can be emphasized.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/TA04010881" target="_blank" >TA04010881: Stanovení dlouhodobé spolehlivosti kompozitních výztuží s ohledem na zvýšení jejich užitných vlastností</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Key Engineering Materials (print)

ISSN

1013-9826

e-ISSN

—

Svazek periodika

691

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

61-72

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84959432986