Paper Details

Composite sections are often used for tall bridge columns to reduce their mass, reduce seismic inertia forces,and reduce foundation forces. However, the seismic performance of Composite columns is still not fully understoodalthough a few experimental works were conducted previously. The behavior of nine flexure-dominant circularComposite reinforced concrete cubes, under axial loading is investigated through a experimental studies. Comparisonbetween test results of nine Composite and nine solid reinforced concrete cubes is presented. All of the 18 cubes weredesigned as Composite sections to resist combined load of bending, torsion and shear. Every pair (one Composite andone solid) was designed for the same load combinations and provided similar reinforcement. Test results showed thataverage 15% rise in Composite circular bar’s compressive strength compare to regular bar. All solid beams cracked andfailed at higher loads than their counterpart Composite beams. The smaller the ratio of torsion to bending the larger thedifferences in failure loads between the Composite and solid beams. The longitudinal steel yielded while the transversesteel experienced lower strain values.

Megha Patel, Niharika Sharma, Amin Mitha, “Feasibility of Composite Reinforcement for Heavy Structure”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 15, pp. -, January 2018.