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Re: Fence Panel Evaluation

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Generally speaking be careful with aluminum, it's not steel!!

Welding is the biggest difference. It reduces the yield strength of the base 
 material near the weld, as one example....

Andrew Kester , PE
Sunshine state

On Sep 25, 2015, at 5:23 PM, Thor Tandy <vicpeng(--nospam--at)> wrote:
> My $0.02 worth.
> In Canada we have CSA S157 with relevant equations for capacities etc and
> ASTM has aluminum standards ...?
> Except for weld-heat impact, the equations are similar (not identical) to
> those for steel and other homogeneous isotropic materials.  So you could 
> use Mr=.9*S*Fy and use Fy = 1/2 the specified strength ... etc
> Single anchor at bottom seems a little light ...?  And I didn't think 6061 
> alloy came with 'T5' temper ... my data book shows 'T4' and 'T6' but that
> might be Canada ...
> I'd check that the 5052 alloy works, especially with the reductions if 
> welded. It's used more for architectural work than structural but it might 
> be enough. 
> Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC

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