Publication detail

Experimental Verification of Load-Bearing Capacity of FRP Bars under Combined Tensile and Shear Forces

GIRGLE, F. JANUŠ, O. KOSTIHA, V. ŠTĚPÁNEK, P.

Original Title

Experimental Verification of Load-Bearing Capacity of FRP Bars under Combined Tensile and Shear Forces

Type

journal article in Web of Science

Language

English

Original Abstract

In recent decades, the number of applications of fiber-reinforced polymer (FRP) reinforcement for concrete has significantly expanded. This fact is mainly due to the FRP reinforcement cost competitiveness, the increasing availability of design provisions, and due to the advantageous physical-mechanical and chemical properties of this composite material, which open up new possibilities for the design and implementation of extremely durable elements. Currently, the most commonly used types of reinforcement bars are those containing glass FRP (GFRP) or basalt FRP fibers, which is mainly the result of their favorable price and high resistance to aggressive environments. The use of composites in construction is wide-ranging: it is possible to apply FRP bars not only in the design and strengthening of concrete structures but also in the installation of shear dowels in concrete pavement, as rock bolts or as anchors for overhanging facade components. In the case of the design of load-bearing elements subjected to a combination of tensile and shear force, it is necessary to quantify their shear resistance and concisely describe the effect of the interaction of the tensile and shear force on the load-bearing capacity of the reinforcing element. This is a broadly addressed area as regards composite laminates and fabrics, but when it comes to FRP bars, there are very few available experimental results. For that reason, this research deals with the experimental testing and quantification of the influence of the interaction of normal and shear force. The behavior of GFRP bars from two different manufacturers, with three different diameters, different surface treatments, and mechanical characteristics, was experimentally verified. The findings are presented, a material failure curve is compiled, and the results are compared with those predicted according to the available relationship for composite laminates and von Mises theory.

Keywords

FRP; combined tensile and shear force; load-bearing capacity; experimental verification

Authors

GIRGLE, F.; JANUŠ, O.; KOSTIHA, V.; ŠTĚPÁNEK, P.

Released

18. 1. 2023

Publisher

Journal of Composites for Construction

Location

United States

ISBN

1090-0268

Periodical

JOURNAL OF COMPOSITES FOR CONSTRUCTION

Year of study

27

Number

2

State

United States of America

Pages count

12

URL

https://ascelibrary.org/doi/10.1061/JCCOF2.CCENG-4013

BibTex

@article{BUT181489,
  author="František {Girgle} and Ondřej {Januš} and Vojtěch {Kostiha} and Petr {Štěpánek}",
  title="Experimental Verification of Load-Bearing Capacity of FRP Bars under Combined Tensile and Shear Forces",
  journal="JOURNAL OF COMPOSITES FOR CONSTRUCTION",
  year="2023",
  volume="27",
  number="2",
  pages="12",
  doi="10.1061/JCCOF2.CCENG-4013",
  issn="1090-0268",
  url="https://ascelibrary.org/doi/10.1061/JCCOF2.CCENG-4013"
}