Abstract
For seismically insufficient buildings, to retrofit the RC partition
walls using the Carbon Fiber Reinforced Polymer (CFRP) is of particular
interest at the present juncture in Taiwan after Chi-Chi Earthquake.
This paper describes theoretical and experimental studies related
to the seismic retrofits of the RC frames containing walls using
CFRP materials. Three В“as builtВ” RC frames with or without walls
and two В“retrofittedВ” RC frames with walls had been tested under
simulated seismic actions. Experimental observations and theoretical
analyses indicated that the shear resisting mechanism of the RC squat
walls can be modeled as the struts and ties, and that shear strength
of squat wall can be reasonably predicted by the softened strut-and-tie
model. The test results of the retrofitted squat walls indicated
that the CFRP with sufficient end anchorage is an effective retrofitting
measure.
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