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Re: Canadian reinforcement[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: Canadian reinforcement
- From: Robert Kazanjy <rkazanjy(--nospam--at)gmail.com>
- Date: Wed, 18 Jan 2006 07:37:30 -0800
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.
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
vicpeng(--nospam--at)telus.net----- Original Message -----From: Kevin BelowSent: Tuesday, January 17, 2006 6:35 PMSubject: Canadian reinforcementDoes 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.
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