Steel-fibre high-strength concrete prisms confined by rectangular ties under concentric compression

Title: Steel-fibre high-strength concrete prisms confined by rectangular ties under concentric compression
Author(s): H. C. Lima Júnior, J. S. Giongo
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 37
Issue: 274
Issue date: 2004-12-01
Publication year: 2004
Pages: 689 - 697
Total Pages: 9
Nb references: 17
Language: English

Abstract: This paper presents results from a continuing research program that aims to investigate the behaviour of high-strength concrete columns and to recommend some design procedures to Brazilian Building Code.
The specific current work deals with experimental behaviour of steel fibre high-strength concrete columns (SFHSCC) confined with low ratios of rectangular ties under concentric compression.
Twenty-four small-scale SFHSCC were tested under concentric loading and their behaviour were examined and compared with the behaviour of two normal-strength concrete columns.
The variables studied in this work were the concrete strength, amount of transversal reinforcement and volumetric fraction of steel fibre.
The results indicated that steel fibre not only improves the columns ductility, but also avoids the premature concrete cover spalling.
Further, to improve the ductility of high-strength concrete column, the used amount of steel reinforcement is the same when tie confinement or steel fibre is applied.

Online publication: 2004-10-17
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14092