COLUMNS WITH SPIRAL REINFORCEMENT UNDER CONCENTRIC COMPRESSION

Ioannis A. Tegos, Theodoros A. Chrysanidis

Abstract: The work is experimental and has to do with the behavior of circular cross-section (piles or columns) under axial compressive load. 10 column specimens having a diameter of 205mm and height 800mm were studied. The main parameters whose influence was examined are: (1) Spiral reinforcement ratio, (2) Density (step) of spiral reinforcement, (3) The ductility of spiral reinforcement, (4) The strength of spiral reinforcement and (5) Opportunities for improving the mechanical behavior (strength and ductility) of these components by using either special ties or fiber reinforced concrete. Using experimental results, stressstrain diagrams s-e are constructed from which interesting conclusions emerged.

Keywords: Columns, Spiral reinforcement, Compression, Circular

DOI: https://doi.org/10.15623/ijret.2014.0308020