Title: Seismic Behavior and Design of Unbonded Post-Tensioned Precast Concrete Frames
Date: May-June, 1999
Volume: 44
Issue: 3
Page number: 54-71
Author(s): Magdy T. EI-Sheikh, Richard Sause, Stephen Pessiki, Le-Wu Lu
https://doi.org/10.15554/pcij.05011999.54.71
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Abstract
Unbonded post-tensioned precast concrete beam-column subassemblages have been studied in previous research and were found to be a promising seismic resistant structural system. The behavior of two ix-story unbonded post-tensioned frames is studied using nonlinear push-over static analyses and time-history dynamic analyses. Two analytical models are developed for the analyses; the fiber model and the spring model. The results show that the behavior of unbonded post-tensioned precast frames, in particular, the strength, ductility and self-centering capability is more than adequate for severe earthquake loading.
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