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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Interaction Between Bond at Beam Bars and Shear Reinforcement in R/C Interior Joints
Author(s): T. Ichinose
Publication: Special Publication
Appears on pages(s): 379-400
Keywords: anchorage (structural); beams (supports); columns (supports); bond (concrete to reinforcement); joints (junctions); reinforced concrete; reinforcing steels; shear properties; Structural Research
Abstract:A set of shear-resistant actions is presented to analyze reinforced concrete interior beam-column joints in weak beam-strong column ductile frames. The proposed analysis explains the results of experiments of beam-column joints with and without bond at beam bars and with various horizontal shear reinforcement. Local bond strength at beam bars affects horizontal hoop stress. Under or up to the limit of enough bond, larger local bond strength demands larger horizontal hoop stress. Over this limit, larger local bond strength demands smaller horizontal hoop stress. Joint shear reinforcement improves anchorage of beam bars because horizontal hoop stress guarantees bond stress outside diagonal strut. This results in smaller compressive stresses of joint concrete, preventing compressive shear failure.
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