The Effect of Initial Combined Load on the Lateral Free Vibration on the Aarch and P-M Interaction Curve

아치의 곡률면외 자유진동 해석과 P-M상관도

The effect of initial combined load on the lateral free vibration of arches is investigated. For the analysis, P-M interaction curves for the arches are obtained. The arches are circular arches which have constant cross-section and simply supported. Also, the arches are subjected both radial uniform distributed load which results in an axial compression on the cross-section and end moments that cause uniform bending action at the same time. All analysis are performed by finite element method based on Kang and Yoo's curved beam theory.