Open AccessPerformance of High-Strength Concrete One-Way Slabs with Embedded BFRP Bar Reinforcement
Author(s) -
Qasim M. Shakir
Publication year - 2018
Publication title -
international journal of applied science
Language(s) - English
Resource type - Journals
eISSN - 2576-7259
pISSN - 2576-7240
DOI - 10.30560/ijas.v1n1p25
Subject(s) - reinforcement , materials science , structural engineering , deflection (physics) , ultimate tensile strength , slab , basalt fiber , durability , composite material , steel bar , bar (unit) , finite element method , engineering , fiber , geology , optics , oceanography , physics
Since the invention of reinforced concrete, steel bars had been used as tension device to resist tensile stresses. Recently, several experimental and theoretical studies have been achieved to verify that FRP composites bars (CFRP and GFRP) may be a good competitive alternatives due to strength ,durability and weight aspects. Few studies have been published about the performance of BFRP bars in reinforced concrete simply supported or continuous slabs. Thus, In the present work, a theoretical study based of the finite element approach is achieved utilizing ANSYS-15 package to investigate the performance of the reinforced concrete one-way slabs with embedded basalt (BFRP) bars under monotonic loads. Six slabs have been considered, two were simply supported and four were continuous each with two-span. Several parameter have been studied such as continuity condition, reinforcement ratio, position of reinforcement and the effect of replacement basalt bars by steel bars.
It is concluded that slabs reinforced with BFRP bars have lower performance if compared with that reinforced with steel bar reinforcement. Also, it is found that the steel is more effective in bottom face within the midspan zone and basalt bars are inactive in top compression zone. It is found with an efficient distribution of bars that for slab with reinforcement ratio of 0.7%, the load capacity is improved by 12.5% and a reduction in max. deflection 46%. while the load capacity is improved by 61% when adopting a ratio of 1% while the max. deflection is reduced by 56%.