Behavior of Reinforced Concrete Column–Steel Beam Roof Level T-Connections under Displacement Reversals

Configuration Features and Calculation Mechanisms of the Composite RC Column-Steel Beam (RCS) Joints: State of the Art

“…According to the tested results of the beam-through RCS roof level T-connections with details of FBPs and steel band plates, ultimate horizontal joint shear strength was given by the contributions from the steel web panel and the inner and outer diagonal strut [29]. Te shear force versus shear distortion envelope responses of the RCS roof T-connections referred to that of Parra-Montesinos et al [22].…”

“…To study the composite efects of RCS joint with the RC slab, extensive data [3,[19][20][21][22][23][24][25] indicate that (1) the specimens following the strong column weak beam criterion formed the plastic hinges at the beam ends and showed a good cyclic performance (Figure 1); (2) the comparison of interior RCS subassemblies without the RC foor slab, the ultimate shear strength of the composite beam-slab sections was calculated, and 20% strength increase was seen in the specimen due to RC slab; (3) avoiding the high compressive stresses by the involvement of cast in situ slab in the joint region resulted in the area of concrete getting crushed near the corners of column, and guidelines and recommendations for the RCS connections with proper details, e.g., cover plates, band plates, and shear studs, were necessary for seismic design; and (4) efective fange width of the composite beam-slab sections has a signifcant efect on the capacity of beam moment and equivalent elastic moment of inertia values. To evaluate the behavior of the exterior RCS connections [17,[26][27][28][29][30], various details, such as end plates, shear keys, and extended cover plates, and the shear strength models have been proposed. Additionally, the infuential factors of the RCS connections on the static performance including the axial compression ratio, steel insert length, the thickness of end plate, and the column concrete grade was also studied.…”

RCS Moment Frames in High Seismic Zones in the United States

“…A 400 mm square column was used in all specimens while the depth of the continuous steel beam ranged from 240 mm to 400 mm. Two joints with a T-configuration were also tested under reversed cyclic loading in the early 2000s [8]. A 400 mm square column was used, and the joints featured face bearing plates, steel band plates and steel columns.…”

Investigations of seismic behavior of hybrid connections

“…14 An experimental study on the welded connections consisting of steel beams and reinforced concrete columns encased with steel plates proved to be satisfactory in terms of strength and ductility under large inelastic deformation reversals, such as strong earthquakes. 15 It may be noted that although a few research studies on hybrid beamcolumn connections with cast-in-place concrete specimens are available, literature related to hybrid precast concrete joints is scarce. gular column simulated two different structural combinations: one was strong column-weak beam and another was weak column-strong beam.…”