PARAMETRIC STUDY OF VARIOUS TUBE IN TUBE STRUCTURES
Keywords:
Tube in tube, Lateral load , ETABS 2015 , Base shear, shear lag , Tall building , story drift , story displacement , Time PeriodAbstract
Tubular structures are common structural system for tall buildings in past few years. The tubular
structures are different types. The tube in tube structures are more suitable for high rise buildings. A tube in tube
structure is formed by outer core (external tube) tube and inner core (internal tube) tube connected by floor slab.
It is act like a huge tube with a smaller tube in middle of it. The load is transfer between these two tubes. In which
a strong center tube of high strength concrete is the main load carrying structure. the load is carried by long
vertical tubes at perimeter of building connected by periphery walls. This structural system improves the
structural stability and increases the floor space to be utilized