1. AN EXPERIMENTAL STUDY OF REINFORCED CONCRETE BEAMCOLUMN JOINT WITH PARTIALLY HIGH STRENGTHENED LONGITUDINAL BAR.
- Author
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YOSHIYUKI MURATA, KAZUHIRO KITAYAMA, SHINJI KISHIDA, and KEN MURAKAMI
- Subjects
REINFORCED concrete buildings ,BARS (Engineering) ,EARTHQUAKES ,BENDING strength ,INDUCTION heating - Abstract
It is necessary to generate the yield position away from the column face to minimize damage to the beam-column joint during a large earthquake in a reinforced concrete building. The same efficacy can be realized using partially high strengthened rebar. The number of longitudinal bars can be calculated for a bending moment smaller than the column face, reducing their number compared to the conventional bar-arrangement method. This paper describes reinforced concrete an interior beamcolumn subassemblage tests using this rebar as the longitudinal bars of beams and a column. The beam yield hinge was formed at a position apart from the column face, and the damage to the beam-column joint was less than the conventional bar-arrangement method. Additionally, the good performance was obtained if the bending strength of the column was large, even if the shear capacity margin of the beam-column joint was small. The column-beam flexural strength ratio and shear capacity margin at the beam-column joint need to be set with consideration of their relationship. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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