Amorn Pimanmas

pp. 323 - 332

Abstract

This paper presents a test of non-seismically detailed reinforced concrete beam-column connections under reversed cyclic load. The tested specimens represented those of the actual mid-rise reinforced concrete frame buildings, designed according to the non-seismic provisions of the ACI building code. The evaluation of 10 existing reinforced concrete frames was conducted to identify key structural and geometrical indices. It was found that there existed correlation VS structural and geometrical characteristics and the column tributary area. Hence, the column tributary area was chosen as a parameter for classifying the specimens. The test results showed that specimens representing small and medium column tributary area failed by brittle joint shear, while specimen representing large column tributary area failed by ductile flexure, even though
no ductile seismic details were provided.