Mechanical Behavior of Reinforced Concrete Beam-Column Assemblage with Different Floor Levels on Both Sides of Column

Abstract eng:
: The objects of this study are to give consideration to the mechanical behavior of beam-column subassemblage with different floor levels on both sides of column, and also to estimate the shear strength of joint in such a subassemblage. The number of test specimens with beam bar anchorage of the continuous hoop form within a joint is three and the variable of the test series is the distance between one beam axis and the other beam axis on both sides of column only. The failure mode of two specimens with zero distance and with the distance of a half beam depth between one beam axis and the other beam axis was the joint shear failure. At the maximum strength, the shear force of the joint zone between one beam axis and the other beam axis in the specimen with the distance of a half beam depth is larger than that of the joint zone in the specimen with zero distance. Therefore, the ultimate strength of joint with different floor levels should be estimated by means of the shear force of the joint zone between one axis and the other beam axis. As a result, the ultimate strength of joint relates with the ratio of the distance between one beam axis and the other beam axis to the column depth. Namely, as the value of ratio is smaller, the ultimate strength of joint increases.

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