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RE: Lift Lug

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That requirement is not applicable for my problem. I
am designing lift lugs on a skid. The requirement you
have mentioned is for cases where the two connected
parts cannot be allowed to rattle.

Rajendran 

--- "Sherman, William" <ShermanWC(--nospam--at)cdm.com> wrote:
> What about the requirement in the same section that
> states "the diameter of
> the pin hole shall not be more than 1/32-inch
> greater than the diameter of
> the pin"? 
> 
> > -----Original Message-----
> > From: Padmanabhan Rajendran
> [mailto:rakamaka(--nospam--at)yahoo.com]
> > Sent: Friday, February 09, 2001 12:14 PM
> > To: seaint(--nospam--at)seaint.org
> > Subject: Lift Lug
> > 
> > 
> > One of the criteria for lift lug design is to
> check
> > the tension on the net section passing through the
> > pinhole. AISC (ASD) Section D3.2 states: "For
> > calculation purposes, the distance from the edge
> of
> > the pinhole to the edge of the plate...., shall
> not be
> > assumed to be more than 0.8 times the diameter of
> the
> > pinhole". (Please note that in the original
> > publication a factor of 1.25 was printed which was
> > subsequently corrected to be 0.8 per Errata issued
> by
> > AISC). Also, the maximum width from the edge of
> the
> > pinhole is limited to 4 times the plate thickness.
> > 
> > Therefore, in order to satisfy this criterion
> (tension
> > capacity), one can increase the pinhole diameter
> or
> > increase the plate thickness. In a design I
> completed
> > recently, I chose to increase the hole diameter:
> The
> > pin diameter was 2.5" and the hole diameter came
> out
> > to be 5". The design, while technically correct,
> > seemed odd because of a large hole to accommadate
> a
> > smaller pin. Am I missing something?
> > 
> > Rajendran
> > 
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