Behavior of high strength concrete encased steel composite short columns subjected to axial load

Sasikumar P

doi:10.7764/RDLC.24.1.172

Authors

Sasikumar P Kumaraguru College of Technology, Anna University, Coimbatore (India)

DOI:

https://doi.org/10.7764/RDLC.24.1.172

Keywords:

High strength concrete, analytical study, numerical analysis, peak ductility, stiffness.

Abstract

Present-day high strength concrete (HSC) encased steel composite (ESC) columns play a significant role in the construction industry. ESC resists steel sections from corrosion and fire resistance, increasing the load-carrying capacity compared to conventional reinforced concrete columns. This study investigated the behaviour of high-strength concrete encased steel composite short columns subjected to axial load. This study included analytical, experimental and numerical studies. The main objectives of this study are the axial load-carrying capacity of columns, mode of failure, peak ductility and stiffness at yield and ultimate point. A total of three column specimens were chosen in this study: one is a strength concrete ESC column, the second one is a strength reinforced concrete column, and the final one is a steel column; all columns were designed with the Indian standard code. The experimental study was compared to the analytical and numerical analysis; analytical and numerical studies also help predict the experimental research. Analytical and numerical study results were highly correlated to the experimental test results.

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