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RE: Bracing of pendant lighting

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Here, if the hanging item can swing to 45d+/- vertical angle without bumping 
 into anything, it can be left to swing.  That said, the holding line has 
to be able to carry the tensions generated.

Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC
Victoria, BC
Email: vicpeng(--nospam--at)
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-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of Lloyd Pack, P.E. Sent: August-29-14 3:58 PM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Bracing of pendant lighting


How does the light stay in the horizontal plane when it's a pendant light?

If the light moves in any direction from its at-rest position then it will 
have to break the horizontal plane and begin ascending on an arc.  It would 
 seem that it can only spin in position and remain in the horizontal plane.

Is there any commentary on this section?  It seems like it needs more than 
what is given to really understand what they're trying to convey.

Good luck, and please let us know what you find out.

On 29 Aug 2014 at 12:20, Drew Morris wrote:

> In ASCCE 7-10 13.6.1, there is an exception for the bracing of pendant
> lighting if the connection to the structure shall allow a 360 degree
> range of motion in the horizontal plane. How is the horizontal plane
> defined? I read this to mean that if the light hangs down 10 feet,

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