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Composite Actions of Steel-Fibre Reinforced Polymer Composite Beams
The shear stiffness of proposed blind bolts was experimentally investigated in this chapter through steel-FRP joints loaded in tension, for shear connections within the steel-fibre reinforced polymer (FRP) composite beam systems. The number of bolt rows (either one or two bolt rows) and the effect of the pultrusion orientation of the FRP web-flange sandwich slab on the joint stiffness and joint capacity were examined. It was found that joint capacity and failure modes were dependent on the pultrusion configuration of the FRP slab and the number of bolt rows. A unidirectional configuration consisting of an FRP slab with box-profiles (i.e. square hollow sections) parallel to flat panels exhibited shear-out failure, whereas a bidirectional orientation consisting of an FRP slab with box-profiles perpendicular to flat panels exhibited both shear-out and net-tension failure in the FRP component. The experimentally derived shear connector stiffness was then used in a proposed design formulation to predict the bending stiffness of modular steel-FRP composite beam systems, considering two kinds of partial composite actions. These were the composite action provided by the blind bolt shear connector and the composite action provided by transversely-oriented webs within the slab. Agreement was observed between the experimental results and the proposed design formulation.
Composite Actions of Steel-Fibre Reinforced Polymer Composite Beams
The shear stiffness of proposed blind bolts was experimentally investigated in this chapter through steel-FRP joints loaded in tension, for shear connections within the steel-fibre reinforced polymer (FRP) composite beam systems. The number of bolt rows (either one or two bolt rows) and the effect of the pultrusion orientation of the FRP web-flange sandwich slab on the joint stiffness and joint capacity were examined. It was found that joint capacity and failure modes were dependent on the pultrusion configuration of the FRP slab and the number of bolt rows. A unidirectional configuration consisting of an FRP slab with box-profiles (i.e. square hollow sections) parallel to flat panels exhibited shear-out failure, whereas a bidirectional orientation consisting of an FRP slab with box-profiles perpendicular to flat panels exhibited both shear-out and net-tension failure in the FRP component. The experimentally derived shear connector stiffness was then used in a proposed design formulation to predict the bending stiffness of modular steel-FRP composite beam systems, considering two kinds of partial composite actions. These were the composite action provided by the blind bolt shear connector and the composite action provided by transversely-oriented webs within the slab. Agreement was observed between the experimental results and the proposed design formulation.
Composite Actions of Steel-Fibre Reinforced Polymer Composite Beams
Springer Tracts in Civil Engineering
Bai, Yu (editor) / Satasivam, Sindu (author) / Feng, Peng (author) / Bai, Yu (author) / Caprani, Colin (author)
2023-01-13
22 pages
Article/Chapter (Book)
Electronic Resource
English
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