earticle

영어

The tube structure is one of the most efficient lateral resisting structural system. But as a result of the flexural and shear flexibilities of the frame members, the behavior of the tube structure is complicated by the "shear lag" phenomenon which has the effects of increasing the axial stress in the corner columns, decreasing those in the inner columns and reducing the lateral
stiffness of the structure. The outrigger system is a solution to decreasing the shear lag phenomenon and displacement.
The purpose of this study is to investigate the shear lag phenomenon of high-rise buildings of tube structure system with outrigger tube structure. The control of top displacement and core moment of a tall building structure under lateral loads have become two main concerns in structural design of tall building. The outrigger system is regarded as one of the most effective
lateral resisting structural system and widely used in tall structures.
In this study, to analyze the behavior of simplified model with outrigger system, has some differences - location, number & stiffeners of outrigger.