Title:
Seismic Response of Connections in Two-Bay Reinforced Concrete Frame subassemblies with a floor slab
Author(s):
Hikmat E. Zerbe and Ahmad D. J. Durrani
Publication:
Structural Journal
Volume:
87
Issue:
4
Appears on pages(s):
406-415
Keywords:
beams (supports); columns (supports); concrete slabs; connections; cyclic loads; earthquake resistant structures; frames; joints (junctions); reinforced concrete; shear strength; stiffness; strength; structural design; Design
DOI:
10.14359/3046
Date:
7/1/1990
Abstract:
The effect of the presence of a floor slab on the behavior of beam-column connections was studied by testing two-bay subassemblies. Each subassembly consisted of two exterior connections and an interior connection. Individual interior and exterior connections were also tested to study the effect of continuity on the response of connections. The tests have shown that a larger slab width contributed to the flexural capacity of beams in continuous subassemblies compared to that observed in tests on single connections of both the continuity of the test subassembly, as well as the presence of the floor slab, resulted in increased shear in the joints. The energy-dissipation capacity in continuous subassemblies was not affected by the presence of the slab; however, the lateral-load resistance increased by as much as 30 percent at 3 percent lateral drift, and the degradation of stiffness was considerably delayed. Based on the results of this study, suggestions are made to include the effect of a floor slab in the procedure for designing beam-column connections.