You go RON, now if we all didn't have to do others work, as stated above, I'd certainly have more hair.
On Wed, Jul 21, 2010 at 9:54 PM, Ron Greenman <[email protected]> wrote: > George, > > Providing the information about the ceiling IS outside of your scope. > You only have to comply with the rules dependent on the ceiling > arrangement. Submittal drawings need only carry a note that to the > effect that if the ceiling is not seismically qualified then you will > comply with one of the two methods allowed per 13. Or just put the big > plate option on then tell the architect that that is what you intend > to do because you don't know about the seismic qualities of the > ceiling. I'll bet it takes no more than a couple of hours to get the > info of what the CEILING GUY intends to do and I'll bet he will intend > to brace the grid. This getting us to do all this leg work like making > sure the building will hold up the pipes is one of my pet peeves. > HELLO!!!! It's not my building. I don't have to put the pipes in, the > owner does. He just hired me to do it 'cause he can't/he's lazy/he's > got other stuff to do/etc. The pipes weigh what they weigh. I'll tell > him how much and I'll even tell him what the point loads will be and > find what I consider the best points of attachment to be. That's my > job. Whether the building is strong enough to deal with those forces > is his and his BUILDING DESIGNER's problem. I'm happy to coordinate > but it's HIS building. Same applies to the ceiling. I have enough of a > problem hitting center tile per the plans and then getting on site to > find that the layout has been turned 90 degrees or started from the > opposite end than was on that plan. As to what's meant by head > extension I've always read that to mean "drop" and not a "head > extender" per se. > > On Wed, Jul 21, 2010 at 12:57 PM, George Medina Jr <[email protected]> > wrote: > > > > I have a plan checker requiring me to call out the required T-bar ceiling > grid construction in accordance with ASCE- 7-05 (Sec. 13.5.6.2.2 - 13.6.8.4) > I do not have sections 13.3.1. & 13.3.2 which are referenced in the > aforementioned sections. Does anyone have code sections 13.3.1 & 13.3.2? The > fire sprinkler plan checker had sent me copies from there FPE who happens to > be on vacation for 2 weeks. > > I believe the t-bar ceiling call out is outside my scope of work, but > upon further reading There is a requirement for Fire Sprinkle Piping for > being in Seismic Zone 4. Section 13.5.6.2.2 (e.) > > States: > > "Except where rigid braces are used to limit lateral deflections, > sprinkler heads and other penetrations shall have a 2" oversize ring, > sleeve, or adapter through the ceiling tile to allow for free movement of at > least 1 in. in all horizontal directions. Alternatively, a swing joint that > can accommodate 1 in. of ceiling movement in all horizontal directions is > permitted to be provided at the top of the sprinkler head extension" Does > head extension imply drop? > > > > How would I determine the Design Strength of Sections 13.6.8.3 - 3 > (a.),(b.) & (c.)? > > > > I am not Familiar with these code sections, and if there is anyone with > experience in it, your guidance would greatly be appreciated. > > > > George Medina Jr. > > > > = > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > For Technical Assistance, send an email to: [email protected] > > > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > > (Put the word unsubscribe in the subject field) > > > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering > Bates Technical College > Tacoma, WA > > Member: > AFT WA 4184/AFL-CIO, SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > -- Tom Poisal, CET _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
