Publication detail

Actual stresses in CFRP-reinforced composite timber beams

KARMAZÍNOVÁ, M.

Original Title

Actual stresses in CFRP-reinforced composite timber beams

English Title

Actual stresses in CFRP-reinforced composite timber beams

Type

conference paper

Language

en

Original Abstract

The paper is focused on the problems of composite beams based on timber and strengthened using CFRP reinforcement externally bonded on the tensile part of the beam to increase the member resistance from the viewpoint of both the ultimate and serviceability limit state. Usually for the resistance calculation the concept of the composite structural members on the base of the substitute cross-section is applied, but the usage of this principle is depending on the efficiency of the shear connection between CFRP reinforcement and basic material – timber. It is mainly influenced by the glue type and depending on that also by the bonded connection quality. The practical experiences obtained from the tests oriented to the experimental verification of the actual behaviour show that the efficiency is very different in the case of particular structural members. The paper presents some selected results of the measurement of the stresses in CFRP reinforcement and in timber base, which can give the information on the level of the mutual interaction between both materials and on the rightness of the substitute section approach mentioned above in the case of timber beams.

English abstract

The paper is focused on the problems of composite beams based on timber and strengthened using CFRP reinforcement externally bonded on the tensile part of the beam to increase the member resistance from the viewpoint of both the ultimate and serviceability limit state. Usually for the resistance calculation the concept of the composite structural members on the base of the substitute cross-section is applied, but the usage of this principle is depending on the efficiency of the shear connection between CFRP reinforcement and basic material – timber. It is mainly influenced by the glue type and depending on that also by the bonded connection quality. The practical experiences obtained from the tests oriented to the experimental verification of the actual behaviour show that the efficiency is very different in the case of particular structural members. The paper presents some selected results of the measurement of the stresses in CFRP reinforcement and in timber base, which can give the information on the level of the mutual interaction between both materials and on the rightness of the substitute section approach mentioned above in the case of timber beams.

Keywords

Stress, CFRP-reinforced composites, strengthening, external reinforcement, timber beam, bonded lamella, experimental verification, theoretical analysis, interaction.

RIV year

2012

Released

14.07.2012

Publisher

WSEAS Press

Location

Kos, Greece

ISBN

978-1-61804-110-4

Book

Proceedings of 7th WSEAS International Conference on Continuum Mechanics

Edition

I

Edition number

1.

Pages from

457

Pages to

460

Pages count

4

Documents

BibTex


@inproceedings{BUT94215,
  author="Marcela {Karmazínová}",
  title="Actual stresses in CFRP-reinforced composite timber beams",
  annote="The paper is focused on the problems of composite beams based on timber and strengthened using CFRP reinforcement externally bonded on the tensile part of the beam to increase the member resistance from the viewpoint of both the ultimate and serviceability limit state. Usually for the resistance calculation the concept of the composite structural members on the base of the substitute cross-section is applied, but the usage of this principle is depending on the efficiency of the shear connection between CFRP reinforcement and basic material – timber. It is mainly influenced by the glue type and depending on that also by the bonded connection quality. The practical experiences obtained from the tests oriented to the experimental verification of the actual behaviour show that the efficiency is very different in the case of particular structural members. The paper presents some selected results of the measurement of the stresses in CFRP reinforcement and in timber base, which can give the information on the level of the mutual interaction between both materials and on the rightness of the substitute section approach mentioned above in the case of timber beams.",
  address="WSEAS Press",
  booktitle="Proceedings of 7th WSEAS International Conference on Continuum Mechanics",
  chapter="94215",
  edition="I",
  howpublished="print",
  institution="WSEAS Press",
  number="1",
  year="2012",
  month="july",
  pages="457--460",
  publisher="WSEAS Press",
  type="conference paper"
}