A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ductility of Heavily Reinforced Concrete Beams
Abstract The overall depth of concrete structures is mostly limited due to boundaries coming from architecture or technical installations. On the other hand, there exists from the same side a demand for larger spans which requests higher span/depth ratios. A combination of high strength concrete and high reinforcement ratios for the longitudinal reinforcement can meet the requirements concerning the flexural strength. However, one of the major concerns is the possible loss in ductility of the beams and slabs. This paper investigates the ductility of heavily reinforced concrete beams. The results of an experimental study of four reinforced concrete beams subjected to a four-point bending test until failure are presented. To enhance the ductility transverse reinforcement is applied to confine the concrete. The ductility of each beam is calculated using the load-deflection curve. Measured strains are used to evaluate the stress distribution in a cross section. The results show that ductility can be guaranteed with even higher reinforcement ratios as indicated in EN 1992-1-1 by upgrading concrete quality and using stirrups as confining reinforcement.
Ductility of Heavily Reinforced Concrete Beams
Abstract The overall depth of concrete structures is mostly limited due to boundaries coming from architecture or technical installations. On the other hand, there exists from the same side a demand for larger spans which requests higher span/depth ratios. A combination of high strength concrete and high reinforcement ratios for the longitudinal reinforcement can meet the requirements concerning the flexural strength. However, one of the major concerns is the possible loss in ductility of the beams and slabs. This paper investigates the ductility of heavily reinforced concrete beams. The results of an experimental study of four reinforced concrete beams subjected to a four-point bending test until failure are presented. To enhance the ductility transverse reinforcement is applied to confine the concrete. The ductility of each beam is calculated using the load-deflection curve. Measured strains are used to evaluate the stress distribution in a cross section. The results show that ductility can be guaranteed with even higher reinforcement ratios as indicated in EN 1992-1-1 by upgrading concrete quality and using stirrups as confining reinforcement.
Ductility of Heavily Reinforced Concrete Beams
Gysel, Ann (author) / Molkens, Tom (author) / Deygers, Inge (author)
2017-08-06
8 pages
Article/Chapter (Book)
Electronic Resource
English
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