100. Use of steel fibres to enhance bond and development of reinforcing bars in high-strength reinforced concrete beams

Title: 100. Use of steel fibres to enhance bond and development of reinforcing bars in high-strength reinforced concrete beams
Author(s): P. Bischoff, F. Berube, G. Lawrence
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1103 - 1112
Total Pages: 10
Nb references: 12
Language: English

Abstract: A pilot test study was carried out on two reinforced concrete beams (220 mm x 330 mm x 3 m long) in order to investigate the effect of using steel fibre reinforced concrete (SFRC) to improve development and lap splice length of deformed reinforcing steel bars. Both beams used high strength concrete having a compressive cylinder strength of 80 MPa, one with 40 kg/m3 of steel fibres added to the concrete and the other using plain concrete without any stirrups along the lap splice length. Test results show an improvement in bond strength that occurs because of a reduction in bar stress and additional transverse confinement that both result from the increased post-cracking resistance provided by the SFRC. Recommendations are given for code implementation.

Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00