Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An Investigation of Crack Propagation in Steel Fiber-Reinforced Composite Beams
This paper investigates the cracking phenomena of fiber-reinforced concrete in steel and concrete composite beam systems. Various parameters contribute to the crack development and weakening of the composite system, while the concrete slab is bonded to the steel beam. The weakening can result from the longitudinal shear stress that causes cracking from shear connectors, cracking from tensile forces, crushing due to compressive forces and also cracking from concrete shrinkage. These cracks can contribute to premature failure of the composite beam. This paper investigates fiber reinforcement as a solution to decrease the amount of cracking in composite beams. The presented methodology includes experimental studies to evaluate cracking characteristics and strength of fiber-reinforced composite beams. Parameters of the study included spacing between studs, application of welded wire reinforcement, and fiber reinforcement. Results indicate the effectiveness of fiber-reinforcement in reducing crack widths and number of cracks, even though, spacing between studs and presence of welded wire were essential in crack control. Further, fiber-reinforced specimens showed higher compressive and tensile strength by 30% and 70% respectively. The deflection at the peak load also showed a 23% decrease for the specimen with hybrid fiber-wire reinforcement in comparison with the specimen reinforced with welded wire only.
An Investigation of Crack Propagation in Steel Fiber-Reinforced Composite Beams
This paper investigates the cracking phenomena of fiber-reinforced concrete in steel and concrete composite beam systems. Various parameters contribute to the crack development and weakening of the composite system, while the concrete slab is bonded to the steel beam. The weakening can result from the longitudinal shear stress that causes cracking from shear connectors, cracking from tensile forces, crushing due to compressive forces and also cracking from concrete shrinkage. These cracks can contribute to premature failure of the composite beam. This paper investigates fiber reinforcement as a solution to decrease the amount of cracking in composite beams. The presented methodology includes experimental studies to evaluate cracking characteristics and strength of fiber-reinforced composite beams. Parameters of the study included spacing between studs, application of welded wire reinforcement, and fiber reinforcement. Results indicate the effectiveness of fiber-reinforcement in reducing crack widths and number of cracks, even though, spacing between studs and presence of welded wire were essential in crack control. Further, fiber-reinforced specimens showed higher compressive and tensile strength by 30% and 70% respectively. The deflection at the peak load also showed a 23% decrease for the specimen with hybrid fiber-wire reinforcement in comparison with the specimen reinforced with welded wire only.
An Investigation of Crack Propagation in Steel Fiber-Reinforced Composite Beams
Soto, Adam (Autor:in) / Tehrani, Fariborz M. (Autor:in)
21.06.2018
doi:10.3311/PPci.10910
Periodica Polytechnica Civil Engineering; Vol 62 No 4 (2018); 956-962 ; 1587-3773 ; 0553-6626
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
TECHNICAL PAPERS - Fictitious Crack Propagation in Fiber-Reinforced Concrete Beams
| Online Contents | 2001
Experimental Study on Dynamic Crack Propagation of Steel Fiber Reinforced Concrete
| British Library Online Contents | 1998
Experimental investigation of steel fiber dispersed reinforced concrete beams
| DOAJ | 2025
Crack Resistance of Pre-Stressed Steel-Reinforced Concrete Composite Simple Supported Beams
| DOAJ | 2024