Show simple item record

AuthorAbushanab, Abdulrahman Hamdi
AuthorAlnahhal, Wael I
Available date2021-10-18T06:52:16Z
Publication Date2021
Publication NameQatar University Annual Research Forum and Exhibition (QUARFE 2021)
CitationAbushanab A. H., Alnahhal W., "Parametric study on moment redistribution of fiber reinforced concrete continuous beams with basalt FRP bars", Qatar University Annual Research Forum and Exhibition (QUARFE 2021), Doha, 20 October 2021, https://doi.org/10.29117/quarfe.2021.0050
URIhttps://doi.org/10.29117/quarfe.2021.0050
URIhttp://hdl.handle.net/10576/24317
AbstractThe state of Qatar bears harsh environment and coastal conditions which stand for most of the year. As a result, steel-reinforced concrete structures are subjected to rapid corrosion and deterioration. Therefore, there is a necessity to replace the conventional steel reinforcement by fiber-reinforced polymers (FRP) bars. Apart from FRP bars' corrosion resistance, their strength to weight ratio is higher than steel reinforcement which makes the FRP bars a viable alternative to steel reinforcement. Continuous concrete beams are commonly used elements in structures such as parking garages and overpasses. In such structures, forces could be distributed between the critical sections after cracking. This phenomenon is called moment redistribution. It reduces the congested rebars in connections and enhances the ductility of the members. However, the linear-elastic behavior of FRP materials makes the ability of continuous beams to redistribute loads and moments questionable. This study aims to investigate the capability of moment redistribution of basalt fiber reinforced concrete (BFRC) continuous beams reinforced with basalt FRP (BFRP) bars. Ten reinforced concrete (RC) continuous beams of 200 x 300 x 4000 mm were tested up to failure under five-point loading. The main investigated parameters were the reinforcement ratio (0.6rb, 1.0rb, 1.8rb and 2.8rb; where rb is the balanced reinforcement ratio), stirrups spacing (80 and 120 mm) and volume fractions of Basalt-macro fibers (BMF) (0.75 and 1.5%). A parametric study was then conducted using a validated finite element (FE) model to extend the investigated parameters that may affect the moment redistribution of RC continuous beams. It was concluded that moment redistribution occurs in beams that have at least a ratio of bottom to top reinforcement of 0.3.
Languageen
PublisherQatar University Press
SubjectBasalt fiber reinforced concrete
Continuous beams
Moment redistribution
BFRP bars
TitleParametric study on moment redistribution of fiber reinforced concrete continuous beams with basalt FRP bars
TypePoster
dc.accessType Open Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record