Abstract
Test results for four prestressed concrete beam-column connections subjected to reversed cyclic loading are reported. The specimens were part of an experimental program designed to investigate the effect of design provisions/specifications and concrete strength on seismic performance behavior of such connections. The major design parameters varied in the specimens were the design code (AASHTO versus New Zealand codes) and the concrete strength (high versus normal strength concrete). From the test results, it was concluded that both the AASHTO and New Zealand codes provide sufficient capacities for earthquake-resistant design, and before spalling of the concrete cover, the stiffness degradation of the specimen with high strength concrete was less serious than that with normal strength concrete. To account accurately for the hysteretic behavior, a new set of rules for such connections to predict the hysteretic loops is proposed.
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