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Re: Canadian reinforcement

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Do you have deformed wire available in Canada? 

On reduced scale structural models we have used various wire sizes & in particular have used D5 wire (.252" dia) in place of #2 bars.  

Most wires have much higher yield strengths (~90ksi) than the typical rebar.

We  would selectively anneal (actually draw down) the material to achieve a more reasonable yield strength if needed.
The wire material (C1009?) was not re-heat treatable so we only got one shot at getting the yield strength right, otherwise it wen to "dead soft" ~40ksi.

If yield strength is not an issue I would suggest W5 or D5 wire (or the Canadian equivalent) as a possible replacement for small rebars.

Cheers
Bob


On 1/17/06, Avicpeng <vicpeng(--nospam--at)telus.net> wrote:
It's not readily available, but 6mm (1/4") plain bar can be obtained.  You'll have to check availability with your local rebar supplier.  Otherwise using US bar is not treasonable (yet).

Thor Tandy P.Eng MIStructE
Victoria, BC
Canada
vicpeng(--nospam--at)telus.net
----- Original Message -----
From: Kevin Below
Sent: Tuesday, January 17, 2006 6:35 PM
Subject: Canadian reinforcement

Does anyone (Canadian) know if there are rebars in smaller diameters than 10M for use in hoops ?  I am doing a design with diagonal reinforcement in a coupling beam.  The last (and coincidentally the first) time I did this, I specified large diagonal bars to reduce the number, and 10M hoops, and there was a little too much steel in the region.  This time, I am going to use smaller bars, and if possible, 1/4" hoops.
The longitudinal bars must be weldable grade G30.18 (400)W, (Chapter 21), but I don't believe this restriction applies logically to the hoops. If there is no 1/4" Canadian bar available to G30.18, then I would be forced to use an equivalent US bar, heaven forbid.

 

 

Kevin Below


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