Strength of Axially Loaded Concrete Filled Steel Tube Elements of Self-Stressing Concrete

Abstract:

This work is dedicated to an experimental research of strength and resistance characteristics of axially loaded concrete filled steel tube elements of self-stressing concrete, including high-performance concrete. Labcrete specimens of circular section 112 mm in diameter and 1000 mm in length were used in experiments. The research shows that the use of self-stressing concrete increased the strength of the specimens by approximately 10%, and enhanced elastic behavior limit by 20-33%. In the course of testing self-stressing concrete specimens, registered longitudinal deformations were within 0.52-0.75%. Analysis of the obtained results indicates a significantly greater case effect in the pre-stressed specimens. This effect is somewhat less pronounced in high-performance concrete specimens, yet still prominent.

• Periodical: Key Engineering Materials (Volume 792)
• Pages: 160-165
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.792.160
• Online since: December 2018
• Authors: A.L. Krishan, Maria A. Astafyeva, Elvira P. Chernyshova*
• Keywords: Axial Load, Case Effect, Concrete Filled Steel Tube Elements, High-Performance Self-Stressing Concrete, Strength

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