> "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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