چكيده لاتين :
The effect of Alkali-Aggregate Reactions (AAR) in concrete dams was investigated using the
finite element method. Two models have been presented to assess the effects of the AAR In
concrete dams. The stress dependency of AARstrains has been taken into account in the models
and the degradation of concrete properties during the reaction has been implemented in the finite
element program. The results of the isothermal and nonisothermal analyses of a gravity section
of a Beauharnois power plant have been presented and compared with the measured data and
the results are in close agreement. The results of the analysis demonstrate the importance of
the AAR in concrete dams. High stresses and large deflections occur in the dam during the
reaction. Because of the stress dependency of the reaction, vertical displacements are smaller
than horizontal displacements.
