Journal of the Korea Concrete Institute, v.34, no.3, pp.291 - 298
Abstract
This study focuses on conducting fragility analysis and estimating the change in fragility curve and the structural capacity due to the alkali-silica reaction (ASR) by using nonlinear seismic analysis. The shell element and nonlinear concrete constitutive model of Opensees have been adopted to conduct the nonlinear seismic analysis. As a result, the HCLPF of the containment structure is estimated as 1.407 g, and it is comparatively higher than the value reported by previous researches which use a lumped mass model. In addition, the median capacity of the containment structure is about 2.704 g when it is under the effects of ASR corresponding to the median longitudinal expansion of 0.013 %. Consequently, the median capacity of the containment structure is decreased about 17.5 % with the aforementioned level of alkali-silica reaction.