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KARMAZÍNOVÁ, M.
Original Title
Theoretical Analysis and Experimental Verification of Moment Resistance of Steel and Timber Beams Strengthened by External CFRP Composites
Type
journal article - other
Language
English
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.
Keywords
Theoretical analysis, experimental verification, resistance, steel, timber, beam, strengthening, carbon fibre-reinforced polymer, composites, external reinforcement, plasticity, elasticity.
Authors
RIV year
2012
Released
1. 8. 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
United States of America
Pages from
168
Pages to
178
Pages count
11
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", journal="International Journal of Mechanics", year="2012", volume="6 (2012)", number="3", pages="168--178", issn="1998-4448" }