Proceedings Vol. 30 (2024)

ENGINEERING MECHANICS 2024
May 14 – 16, 2024, Milovy, Czech Republic
Copyright © 2024 Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
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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 %
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