Title
Eksperimentalno-teorijska analiza graničnih stanja armiranobetonskih kontinualnih greda od samougrađujućeg betona ojačanih vlaknima armiranim polimerima (Fiber-reinforced polymer - FRP)
Creator
Petrović, Žarko I. 1974-
Copyright date
2016
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
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Language
Serbian
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 30.09.2016.
Other responsibilities
mentor
Mijalković, Marina
član komisije
Ranković, Slobodan
član komisije
Brčić, Stanko
Academic Expertise
Tehničko-tehnološke nauke
University
Univerzitet u Nišu
Faculty
Građevinsko-arhitektonski fakultet
Group
Katedra za tehničku mehaniku i teoriju konstrukcija
Alternative title
Experimental-theoretical analysis of limit states of continuous beams made of self-compacting concrete strenghtened with fiber reinforced plymer (FRP)
Publisher
[Ž. I. Petrović]
Format
30 cm XXV, 247 listova
description
Biografija autora: list 247
description
Technical mechanics and theory of structures
Abstract (en)
The paper presents the results of experimental and numerical investigations
of the reinforced (RC) continuous beams made of self-compacting concrete
strengthened with fiber reinforced polymer (FRP). Strengthening was
performed by mounting glass and carbon FRP bars under the concrete
surface (NSM method) as well as by glueing the FRP strips on the tensioned
concrete surface (EB method). Six continuous beams were tested during
which the deformations of beams and the strains in concrete, steel and FRP
reinforcement were recorded until failure under monotonically incresed
loading. By strengthening beams with additional glass (Ø10 mm) and
carbon (Ø8 mm) FRP bars increasing in bearing capacity was achieved
compared to control (unstrengthened) beam of 22% to 82% depending on
the type and the position of FRP reinforcement while by strengthening beam
with FRP strips increasing in bearing capacity was achieved of 50%. In
addition to observed the ultimate strength state, the ultimate serviceability
state was verified, while the stress-strain states of the beams and formation
of plastic joints were monitored. By using FEM, continuous beams were
modelled, and numerical non-linear analysis was conducted using the
program ANSYS. The obtained results of numerical analysis correlated very
well with the experimental results. Based on the carried out investigation it
is concluded that a significant increase in capacity can be achieved by
strengthening of continuous beams using reinforcement made of FRP
materials, regardless of the type of FRP reinforcement and strengthening
method, whereby the NSM method has many advantages compared to the
EB method.
Authors Key words
samougrađujući beton, vlaknima armirani polimeri, armiranobetonski kontinualni nosači, eksperimentalno ispitivanje, numerička nelinearna analiza, metod konačnih elemenata
Authors Key words
self-compacting concrete, fiber reinforced polymer, reinforced-concrete
continuous beams, experimental research, numerical non-linear analysis,
finite element method
Classification
624.072.2 (043.3)
Subject
T002
Type
Elektronska teza
Abstract (en)
The paper presents the results of experimental and numerical investigations
of the reinforced (RC) continuous beams made of self-compacting concrete
strengthened with fiber reinforced polymer (FRP). Strengthening was
performed by mounting glass and carbon FRP bars under the concrete
surface (NSM method) as well as by glueing the FRP strips on the tensioned
concrete surface (EB method). Six continuous beams were tested during
which the deformations of beams and the strains in concrete, steel and FRP
reinforcement were recorded until failure under monotonically incresed
loading. By strengthening beams with additional glass (Ø10 mm) and
carbon (Ø8 mm) FRP bars increasing in bearing capacity was achieved
compared to control (unstrengthened) beam of 22% to 82% depending on
the type and the position of FRP reinforcement while by strengthening beam
with FRP strips increasing in bearing capacity was achieved of 50%. In
addition to observed the ultimate strength state, the ultimate serviceability
state was verified, while the stress-strain states of the beams and formation
of plastic joints were monitored. By using FEM, continuous beams were
modelled, and numerical non-linear analysis was conducted using the
program ANSYS. The obtained results of numerical analysis correlated very
well with the experimental results. Based on the carried out investigation it
is concluded that a significant increase in capacity can be achieved by
strengthening of continuous beams using reinforcement made of FRP
materials, regardless of the type of FRP reinforcement and strengthening
method, whereby the NSM method has many advantages compared to the
EB method.
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