STRUCTURE HAVING A CORE BAR

The present invention relates to a structure having a core bar, in which the structure has superior mechanical strength and quality characteristics and significantly reduced manufacturing cost as compared with existing metal structures, and which enables frames of various curved shaped buildings including dome-shaped and arch-shaped buildings to be conveniently constructed without using a Truss structure or a cast to achieve economic advantages and superior construction ability and contribute to global environment protection. To accomplish this, the structure of the present invention comprises: one or more core bars having elasticity and a bar shape; and an outer body or an outer cover for insertion of said one or more core bars. Each core bar is made of at least one kind of wood including bamboo strips or bamboo-laminated bars, synthetic resin material, glass fiber composite and carbon fiber composite. The outer body or the outer cover is made of one or more metal materials including aluminum, synthetic resin material, glass fiber composite and carbon fiber composite.