Tuesday, September 22, 2009

Re: AISC Specification

Thanks Christopher and Scott,
Your answers are what I suspected, but I haven't dealt with that part of
the AISC spec in a long time. I do get work occasionally from a couple
of firms across the border; small jobs but I don't and can't stamp
anything and they then get their own engineer to stamp the final drawings.

The large firm I had the fight with sent me the requested information
yesterday afternoon. It probably took them all of 15 minutes to find the
forces and send them to me.
Gary

Christopher Wright wrote:
>
> On Sep 21, 2009, at 8:54 AM, Scott Maxwell wrote:
>
>> "Structural Design Drawings and Specifications
>>
>> The design drawings and specifications shall meet the requirements of
>> the
>> 'Code of Standard Practice for Steel Buildings and Bridges', except for
>> deviations specifically identified in the design drawings and/or
>> specifications."
>
> That's another thing to remember--all but the most basic provisions of
> every design specification I've ever used have exceptions like the
> foregoing. The ASME Pressure Vessel Code is also full of them. Very
> little is absolutely prescriptive, so you're still faced with the
> decision as to the 'best practice' for a great many situations. In
> that regard, the AISC Code doesn't work like a law. I've seen more
> than a few instances where someone looking for a way out of a jam will
> cite some exception or another as an escape mechanism--a favorite for
> me is someone who wants to ignore basic engineering principles for a
> low pressure tank 'because the Code says it isn't a pressure vessel.'
> citing the scope of Section as as generally meant for pressures above
> 15 psi. 'Best practices' begin with the first principle of
> engineering: Never try to con Mother Nature by splitting hairs.
>
> Christopher Wright P.E. |"They couldn't hit an elephant at
> chrisw@skypoint.com | this distance" (last words of Gen.
> .......................................| John Sedgwick, Spotsylvania
> 1864)
> http://www.skypoint.com/members/chrisw/
>
>
>
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