A review on “Study the performance of outrigger system under seismic loads”
Abstract
High-rise structures in high seismic zones are subjected to earthquake forces, where the building performance is weakest in storey displacement and storey drift. Many types of research have adopted various techniques to improve the performance of high rise building. These techniques include the provision of core shear wall, bracing systems, dampers, etc. these techniques are able to reduce storey displacement to some extent, but the storey drift is the constraint was the performance of building weakens. This constraint makes the research work to adopt the technique of outrigger as an ancient technique used to reduce the vibration of the structure under the seismic shake. Hence, in this paper, a review of literature is studied to check the performance of the outriggers structural system in high rise building under seismic regions. The outrigger location and depth play an important role in the performance of the building. It is also observed that the outrigger structural system along with the core system reduces storey displacement up to some extent, but helps to reduce storey drift within the limit.
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