Engineering Mechanics

International Conference

Proceedings Vol. 30 (2024)


ENGINEERING MECHANICS 2024

30th INTERNATIONAL CONFERENCE
May 14 – 16, 2024, Milovy, Czech Republic
;
Editors: Vladimír Fuis and Petr Hájek

Copyright © 2024 Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno

ISBN 978-80-214-6235-9 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Prefabricated system for strengthening full-size wooden girders using pre-stressed fiber-reinforced polymers and steel – bending shear tests
Wdowiak-Postulak A., Świt G., Krampikowska A.
pages 318 - 321, full text

This paper describes a study of four-point bending with shear of full-size KG and KS grade glulam beams using glued-in pre-stressed basalt BFRP, glass GFRP and steel rods. From the tests, it was found that the composite bars as well as the glass bars perfectly compensated for the heterogeneous structure of the timber, showing significant ductility in contrast to the brittle fracture of unreinforced beams, the same applies to the shear area in the support zones and on the supports. Using pre-stressed composite bars and pre-stressed steel bars in tension and compression, the following results were obtained: an increase in load capacity and stiffness, respectively steel bars - 39.2 %, 20.2 %; basalt bars - 35.4 %, 19.4 %; glass bars - 32.7 %, 17.2 % compared to unreinforced beams, also influenced by the distance from the neutral axis. The use of composite and steel bars is an effective, economical, environmentally friendly, ecological and natural technology for the repair of elements, as well as the possibility of increasing the span of the girders and reducing their crosssections, which gives an increase in the possibility of using wood-based products with other materials, including natural materials - fibre-reinforced polymers - for structural elements.


back to list of papers

Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


Publication Ethics - Ethical guidelines for publication
Webmaster contact: admin@it.cas.cz

imce   Powered by Imce 3.20  © 2023, Pavel Formánek, Institute of Thermomechanics AS CR, v.v.i. [generated: 0.0256s]