FINITE ELEMENT ANALYSIS OF JACKETED REINFORCED CONCRETE COLUMN SUBJECTED TO AXIAL AND UNIAXIAL LOAD

Vijaya Kumar Y M, Gopi Siddappa, Suresh Chandra, Anushree

Abstract: One strategy for the jacketing of reinforced concrete column is to target the improvement of local vulnerabilities in columns related to inadequate strength (compressive & Flexural) or poor ductility. Theoretical analysis have been carried out in the present study for different column sections of jacket thickness of 75mm and 100mm for jacketed RC columns subjected to axial and uni-axial compressive loading. The uni-axial load carrying capacity along the major axes has been carried out under balanced section condition. Linear static finite element analysis has been carried out for the jacketed RC columns to compare the confined concrete strength (fcc) of finite element analysis with that of theoretical analysis, to plot the variation of stresses at the central core concrete and at the interface of old and new concrete. The maximum shear stress for the columns is also noted down. The displacement at core with respect to major axis is also plotted.

Keywords: Axial load, Uni-axial load, NISA Display IV, Jacketing, confined compressive strength.

DOI: https://doi.org/10.15623/ijret.2015.0404023