Dynamic Characteristics of Reinforced Concrete Axisymmetric Shell with Initial Imperfection (II)-effect of wall imperfection on the dynamic response -

초기결함을 갖는 철근 콘크리트 축대칭 쉘의 동적 특성 (II)-벽체결함의 영향을 중심으로

In this study, a computer program considering iniial imperfectiionof axiymmetric reinforced concrete shell which show plastic deformation by large external loading was developed . Initial imperfection of wall was assumed as 'sine curve' which can be expressed as Wi =W0 sin(n$\pi$/1y). The developed model was applied to the analysis of dynamic response of axisymmetric reinforced concrete shell when it has initial imperfection . The initial imperfection of 0.0, -5.0 and 5 cm and steel ration 0 , 3 and 5% were tested for numerical examples.