STRUCTURAL PERFORMANCE AND INVESTIGATION OF DOUBLE SKIN RUBBERIZED STEEL FIBER MIXED COMPOSITE COLUMN USING ANSYS
Author(s):
Praveen D, Sri Ruban.D, Manisha S, Sakthi K, Sethupathi M
Keywords:
ANSYS, CFST, Double skin, Dynamic Load, Finite Element Analysis, Rubberized concrete, Static Load. Abbreviations: CFST- Concrete Filled Steel Tube, HS – Hexagonal in Square, HC – Hexagonal in Circle, HH- Hexagonal in Hexagonal.
Abstract
This paper discusses about concrete-filled steel tubular (CFST) structures which offers numerous structural benefits, including high strength and fire resistance, favorable ductility and large energy absorption capacities. This investigation study carries the structural performance of double skin rubberized steel fiber mixed composite column by using ANSYS. The column utilized both compressive strength of concrete and tensile strength of steel. Initially the performance of rubberized steel fiber mixed concrete is determined. Crumb rubbers of 20mesh are used to increase the damping property and arrest the vibration. Different ratio (5%,10%,15%,20%) of crumb rubbers are replaced with fine aggregate. Steel fibers are added in 0.75% to minimize the diffusion of crack and withstand against dynamic and static load. The compressive strength test, splitting tensile strength test, and flexural strength tests were conducted. The compression strength, split tensile strength and flexural strength increases with crumb rubber replacement up to 15%, after that the strength tends to decreases, hence it is found that crumb rubber replacement up to15% and steel fiber 0.75% can be adopted. Various type of columns is modeled (Hexagonal in square (HS), Hexagonal in circular (HC), and Hexagonal in Hexagonal (HH)and analyzed their structural performance loads. CFST columns are economical, speed in construction and withstand high load when compared to normal Reinforced concrete (RC) columns. Axial load is applied and analyzed the above columns by using ANSYS (finite element method). Finally, the result was compared with various sections of column. The load carrying capacity of HS column is twice when compared with HS and HH columns.
Article Details
Unique Paper ID: 154784

Publication Volume & Issue: Volume 8, Issue 12

Page(s): 824 - 829
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