Abstract
This paper proposes a vibration model in which the lateral inertia force is considered in order to analyze the dynamic post-buckling behavior of truss members. The post-buckling behavior of perfectly symmetrical truss-structures and symmetrical truss-structures with a small imperfection are analyzed. The structures analyzed are a plane parallel chord truss structure and a double-layer space truss structure. The load-deformation relationships obtained by static and dynamic analyses are compared. It is found that the dynamic load-displacement relationship oscillates around the static relationship after buckling. Some examples show that the buckling mode and the post-buckling load-displacement relationship differ remarkably between static and dynamic analysis.
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