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Re: Important Message: SEAINT Continues on LinkedIn SEAOSC group

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Fellow engineers,

       I will contribute.

I've copied Thor Tandy separately; Thor is active in EIC (Engineering Institute of Canada); perhaps EIC could take it on or help fund the effort.

       I will also check out a couple of private sources.

Regards,

H. Daryl Richardson

----- Original Message ----- From: "Bill McAbee" <billm(--nospam--at)pbsboston.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Friday, May 25, 2012 2:02 PM
Subject: RE: Important Message: SEAINT Continues on LinkedIn SEAOSC group


Great idea. Let's keep it going.


Bill McAbee
Project Engineer
Phoenix Bay State Construction Co., Inc.



-----Original Message-----
From: Tarek Mokhtar [mailto:Tarekmokhtar(--nospam--at)earthlink.net]
Sent: Friday, May 25, 2012 3:58 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Important Message: SEAINT Continues on LinkedIn SEAOSC group

I do not understand how much effort does it take to maintain this list, I thought it was on auto-pilot, with a moderator checking in when things got heated, a rare occurrence.

A big reason for maintaining my SEAOSC membership was this list, not sure really why I should keep sending $300 a year for? I think a lot of list members would pitch in a few dollars a year if someone is willing to rescue it, any takers?

Tarek Mokhtar, SE
TMM Structural Engineers, Inc
31645 S. Coast Hwy
Laguna Beach, CA., 92651
949-499-6254
949-499-2777 Fax







Quick, before it closes down, I have one last question. I have a
project with a circular stair. The owner wants a center stringer and otherwise open.
I'm thinking tube or pipe, but in any case, it will follow the geometry
of a helix.

Questions:

If the steel section is formed via heat, are there residual stresses or
can I assume stresses are zero until I apply load onto the stringer?
Same question if the stringer is formed with laminated wood.

I know a helical spring only sees torsion, but that is because one end
is moving with respect to the other. If I model this stringer, with the
top and bottom preferably pinned (in x, y and z directions), can I
trust the output if I have two load cases, full live load and unbalanced live load?

Finally, is there a question I forgot to ask?

Also, it would be a travesty not to acknowledge the work and foresight
provided by Shafat Qazi and Dennis Wish in conceptualizing, launching
and maintaining the best medium for structural engineers in my
lifetime. Thank you, gentlemen!


T. William (Bill) Allen, S.E. (CA #S2607)

ALLEN DESIGNS
 Consulting Structural Engineers
        32302 Camino Capistrano, #206
         San Juan Capistrano, CA 92675
    V (949) 248-8588.F (949) 209-2509


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