科研之友
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摘要
For researching the seismic resistance capability of the concrete columns reinforced with CFRP (carbon fiber reinforced polymer) tendons and those affected by the earthquake, the four concrete columns reinforced with CFRP tendons were tested under the simulated seismic loading and the hysteretic loading-drift relationships, the behavior of deformation and dissipation of energy and the degeneration of the stiffness were analyzed, and the propositional modes of restoring force and the calculation methods about the skeleton curves were proposed. The experimental results show that the influence of the level of axial compression and the volumetric ratio of hoop on the behavior of seismic resistance of the concrete columns reinforced with CFRP tendons are significant, and the specimens have good deformation and bearing capacity; the traditional-ductility coefficient can not overall reflect the seismic resistance capability of the concrete columns reinforced with CFRP tendons, but the integrated performance index can reflect the influence of the level of axial compression and the volumetric ratio of hoop on the behavior of seismic resistance.
