Abstract
There is an architectural, structural and economic importance of
the study of the reinforced concrete haunched beams (RCHBs). In this study,
mechanical behavior of steel fiber reinforced concrete haunched beams was
investigated. The study included 8 self-compacted concrete beams (7 of which
are RCHBs and one of which are prismatic beams), Two different ratios of steel
reinforcement were considered. The stirrup reinforcement was used for half specimens.
Three steel fiber
ratios (0%, 0.5% and 1%) were adopted.
Two angle of inclination which are 10o & 15o, were
considered for the study. The results showed that load capacity of the beams
was inversely proportional to the increase in the angle of inclination and was
proportional to the increase in the ratio of the steel fiber. Effect of steel
fiber was much more apparent, as the inclination angle of the haunched beams
increased. Moreover, use of steel fiber reduced the crack width of all beams at
failure leading to increase in the service life of the beams. the addition of
fibers with sufficient ratio changed the failure mode of RC haunched beams
without stirrups from shear to flexure mode. Therefore, the steel
fibers can be considered as a suitable solution to replace the stirrups in the reinforced
concrete haunched beams.
Steel fiber self-compacting concrete Haunched beams shear stress
Birincil Dil | İngilizce |
---|---|
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 31 Ocak 2018 |
Kabul Tarihi | 8 Şubat 2018 |
Yayımlandığı Sayı | Yıl 2018 Cilt: 3 Sayı: 1 |
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