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RE: Minimum steel connections

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The OSHA requirement is contained in 29 CFR 1926 Subpart R, 1926.751(a).
You can't release the load from the hoist unless a minimum of 2 bolts are
installed to "wrench tight".

Regards,
Harold Sprague


> -----Original Message-----
> From:	Brian K. Smith [SMTP:smithegr(--nospam--at)bellsouth.net]
> Sent:	Thursday, July 06, 2000 4:39 PM
> To:	seaint(--nospam--at)seaint.org
> Subject:	RE: Minimum steel connections
> 
> I believe this is an OSHA requirement, not AISC.
> 
> Brian K. Smith, P.E.
> 
> > -----Original Message-----
> > From: Paul Feather [mailto:pfeather(--nospam--at)san.rr.com]
> > Sent: Thursday, July 06, 2000 3:33 PM
> > To: seaint(--nospam--at)seaint.org
> > Subject: Re: Minimum steel connections
> >
> >
> > I don't believe there is a specific two bolt minimum requirement per
> code,
> > but it simply makes sense.  When the steel member is swung into
> position,
> > the erector needs one hole for the spud wrench to capture and align the
> > pieces and at least one other hole to install a bolt and "make".  Even
> if
> > the bolts are only an erection aid for a welded connection two
> > bolts ea. end
> > should be the minimum.
> >
> > Paul Feather
> > ----- Original Message -----
> > From: Bill Allen <Bill(--nospam--at)AllenDesigns.com>
> > To: <seaint(--nospam--at)seaint.org>
> > Sent: Thursday, July 06, 2000 10:36 AM
> > Subject: RE: Minimum steel connections
> >
> >
> > > Isn't there a "two bolt minimum" specification somewhere?
> > >
> > > Just a thought,
> > >
> > > Bill Allen, S.E. (CA #2607)
> > > ALLEN DESIGNS
> > > Laguna Niguel, CA
> > > http://www.AllenDesigns.com
> > >
> > > ||-----Original Message-----
> > > ||From: Rick.Drake(--nospam--at)fluor.com [mailto:Rick.Drake(--nospam--at)fluor.com]
> > > ||Sent: Thursday, July 06, 2000 10:14 AM
> > > ||To: seaint(--nospam--at)seaint.org
> > > ||Subject: Re: Minimum steel connections
> > > ||
> > > ||
> > > ||
> > > ||
> > > ||Per the ASD Specification, the 6 kip unfactored load can be
> > > ||resisted by one 5/8"
> > > ||A307 bolt in tension or two 5/8" A307 bolts in shear.  (You
> > > ||get the same answer
> > > ||using the 10 kip factored load in the LRFD Specification.)
> > > ||These do not seem
> > > ||like unreasonable minimum connectors.
> > > ||
> > > ||Rick Drake, SE
> > > ||Fluor Daniel, Aliso Viejo, CA
> > > ||
> > > ||*******************************
> > > ||
> > > ||
> > > ||
> > > ||
> > > ||
> > > ||"Jason Emoto" <jasone(--nospam--at)kpff.com> on 07/06/2000 09:15:49 AM
> > > ||
> > > ||Please respond to seaint(--nospam--at)seaint.org
> > > ||
> > > ||To:   <seaint(--nospam--at)seaint.org>
> > > ||cc:
> > > ||
> > > ||Subject:  Minimum steel connections
> > > ||
> > > ||
> > > ||AISC ASD specification section J1.6 calls for steel connections to
> be
> > > ||designed to support a minimum load of 6 kips (LRFD section
> > > ||J1.7 specifies 10
> > > ||kips).  Lacing, sag bars and girts are excepted from this
> > > ||requirement.  Are
> > > ||there any other exceptions explicity given?
> > > ||
> > > ||Suppose a canopy connection (within the scope of sructural
> > > ||steel as defined
> > > ||by specification section A2.1 and Code of Standard Practice
> > > ||section 2.1)
> > > ||supports a load of 600 lb.  It seems like overkill to design
> > > ||the connection
> > > ||for ten times this force.
> > > ||
> > > ||Jason Emoto, P.E.
> > > ||


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