Publication detail

Theoretical Analysis and Experimental Verification of Moment Resistance of Steel and Timber Beams Strengthened by External CFRP Composites

KARMAZÍNOVÁ, M.

Original Title

Theoretical Analysis and Experimental Verification of Moment Resistance of Steel and Timber Beams Strengthened by External CFRP Composites

English Title

Theoretical Analysis and Experimental Verification of Moment Resistance of Steel and Timber Beams Strengthened by External CFRP Composites

Type

journal article - other

Language

en

Original Abstract

The paper is focused on problems of the application of external reinforcement based on FRP composites for strengthening steel and timber beams to increase their bending moment resistance. Strengthening steel or timber beams using external bonded CFRP composites can appear the advanced way, but the result effect of this reinforcing can be questionable. In this paper the brief information on some results of the research oriented to the investigation of the actual behaviour and resistance of steel and timber beams strengthened by CFRP reinforcement is presented. With respect to practical usage and requirements the attention is paid to the strengthening by externally bonded carbon lamellas. For this problem solution the theoretical analysis and experimental verification mainly are utilized. This paper shows the results and evaluation of experiments realized so far, to verify the actual behaviour and to obtain the objective resistance of reinforced (i.e. externally strengthened by bonded CFRP lamellas) steel and timber beams in comparison with the objective resistance of non-reinforced steel and timber beams obtained from the tests and also in comparison with the predicted resistances, which have been calculated using general principles of the determination of composite cross-section bending resistance, and based on these results to assess the efficiency of CFRP lamellas strengthening. This research is realized on the author workplace in co-operation with the company of PREFA KOMPOZITY Inc. focusing on the development and production of the reinforcement based on glass-fibre or carbon-fibre reinforced composites, among others.

English abstract

The paper is focused on problems of the application of external reinforcement based on FRP composites for strengthening steel and timber beams to increase their bending moment resistance. Strengthening steel or timber beams using external bonded CFRP composites can appear the advanced way, but the result effect of this reinforcing can be questionable. In this paper the brief information on some results of the research oriented to the investigation of the actual behaviour and resistance of steel and timber beams strengthened by CFRP reinforcement is presented. With respect to practical usage and requirements the attention is paid to the strengthening by externally bonded carbon lamellas. For this problem solution the theoretical analysis and experimental verification mainly are utilized. This paper shows the results and evaluation of experiments realized so far, to verify the actual behaviour and to obtain the objective resistance of reinforced (i.e. externally strengthened by bonded CFRP lamellas) steel and timber beams in comparison with the objective resistance of non-reinforced steel and timber beams obtained from the tests and also in comparison with the predicted resistances, which have been calculated using general principles of the determination of composite cross-section bending resistance, and based on these results to assess the efficiency of CFRP lamellas strengthening. This research is realized on the author workplace in co-operation with the company of PREFA KOMPOZITY Inc. focusing on the development and production of the reinforcement based on glass-fibre or carbon-fibre reinforced composites, among others.

Keywords

Theoretical analysis, experimental verification, resistance, steel, timber, beam, strengthening, carbon fibre-reinforced polymer, composites, external reinforcement, plasticity, elasticity.

RIV year

2012

Released

01.08.2012

Publisher

North Atlantic University Union

Location

U.S.A., elektronické vydání: http://www.naun.org/wseas/cms.action?id=2829

ISBN

1998-4448

Periodical

International Journal of Mechanics

Year of study

6 (2012)

Number

3

State

US

Pages from

168

Pages to

178

Pages count

11

Documents

BibTex


@article{BUT93110,
  author="Marcela {Karmazínová}",
  title="Theoretical Analysis and Experimental Verification of Moment Resistance of Steel and Timber Beams Strengthened by External CFRP Composites",
  annote="The paper is focused on problems of the application of external reinforcement based on FRP composites for strengthening steel and timber beams to increase their bending moment resistance. Strengthening steel or timber beams using external bonded CFRP composites can appear the advanced way, but the result effect of this reinforcing can be questionable. In this paper the brief information on some results of the research oriented to the investigation of the actual behaviour and resistance of steel and timber beams strengthened by CFRP reinforcement is presented. With respect to practical usage and requirements the attention is paid to the strengthening by externally bonded carbon lamellas. For this problem solution the theoretical analysis and experimental verification mainly are utilized. This paper shows the results and evaluation of experiments realized so far, to verify the actual behaviour and to obtain the objective resistance of reinforced (i.e. externally strengthened by bonded CFRP lamellas) steel and timber beams in comparison with the objective resistance of non-reinforced steel and timber beams obtained from the tests and also in comparison with the predicted resistances, which have been calculated using general principles of the determination of composite cross-section bending resistance, and based on these results to assess the efficiency of CFRP lamellas strengthening. This research is realized on the author workplace in co-operation with the company of PREFA KOMPOZITY Inc. focusing on the development and production of the reinforcement based on glass-fibre or carbon-fibre reinforced composites, among others.",
  address="North Atlantic University Union",
  chapter="93110",
  institution="North Atlantic University Union",
  number="3",
  volume="6 (2012)",
  year="2012",
  month="august",
  pages="168--178",
  publisher="North Atlantic University Union",
  type="journal article - other"
}