재료특성의 변동을 고려한 고층건축구조물의 확률론적 시공단계해석

Abstract

A probabilistic construction stage analysis using the SSM(Step-by-Step Method) and the Monte Carlo Simulation was performed to address the effects of uncertainty of the material properties for the construction stage analysis. Because of the common influencing factors in the material models for the creep and shrinkage it is reasonable to assume that the creep and shrinkage behavior of concrete are correlated by some degree rather than completely independent. Thus in this study multiple sets of analyses by changing the correlation coefficients between the creep and shrinkage coefficients from 0 to 0.6 with an increment of 0.2 were performed and the displacement estimates were compared. A two-bay plane frame structure was used for the example structure. Analysis results showed that the variance of total displacement also increases as the correlation between the creep and shrinkage was increased.