ANALYSIS OF HIGH-RISE BUILDING WITH OUTRIGGER USING NON-DIMENSIONAL PARAMETER

As lack of land and increase in population density, new challenge in infrastructure is to attain the height of building by maintaining the stability of structure. The outrigger structural system is an appropriate structural system to improve the performance of super high-rise buildings because the wind loads govern more effect than the earthquake loads. The optimum position of the outrigger beam is necessary to increase the stiffness of the structure and to make structure more proficient under the action of lateral forces. Two non-dimensional parameter α (core-to-column rigidity) having constant value and β (core-to-outrigger rigidity) having different value are used observe the behaviour of outrigger structural building. Key parameter discussed in this paper includes the overturning moment due to rotation of the core, story drift, and lateral deflection.