A REVIEW PAPER ON COMPARETIVE STUDY OF REINFORCED CONCRETE FILLED STEEL TUBE STRUCTURE WITH TRADITIONAL REINFROCED CONCRETE AND STEEL STRUCTURE

Abstract

In India reinforced concrete structures are mostly used since this is the most convenient & economic system
for low-rise buildings. However, for medium to high-rise buildings this type of structure is no longer economic because
of increased dead load, less stiffness, span restriction and hazardous formwork. Structural engineers are facing the
challenge of striving for the most efficient and economical design solution while ensuring that the final design of a
building must be serviceable for its intended function, habitable for its occupants and safe over its design life -time. A
concrete filled steel tubes (CFST) column is constructed by filling a hollow structural steel tube with concrete. As one
of the structural element, CFST column has high load bearing capacity, excellent earthquake resistance, good ductility,
high fire resistance and its higher stiffness delay the onset of buckling. Besides that, steel tube can function as a
permanent formwork as well as reinforcement, thus proving more economical. Comparative study on CFST, RCC and
Steel structure with different storey height of G+14, G+19 and B+G+20 stories with all structural systems as frame
structure is carried out. E-Tabs software is carried out for analysis. Comparison of parameters like axial force, joint
reaction, time period and story drift is done.