Strength and crack resistance of steel and bfrp hybrid reinforced concrete beams

Abstract

This article presents a study on the use of combined steel and basalt fiber reinforced polymer (BFRP) reinforcement in the tensile zones of reinforced concrete beams. In the research, the effects of combined reinforcement on the strength of the beams, their behavior under loading, and the formation and development of cracks were learned deeply. In addition, the failure modes of such beams and the factors affecting their failure were investigated. The work of beams with combined steel–BFRP reinforcement was compared with conventional reinforced concrete beams. On this basis, conclusions were drawn regarding the pros and cons of both types of beams, their differences in load-bearing capacity, and crack formation. Additionally, the article highlights the optimal placement of BFRP reinforcement in the beams. The research results show that combined reinforcement improves the long-term performance of reinforced concrete elements and enhances their load-bearing capacity.