Bill, If a second person is going to review the plans design criteria documentation is crucial. Most projects have a time element. Without this portion of a submittal plan review doesn't start. Why look at pipe hangers or bracing if the design criteria hasn't been affirmed?
Plan reviewers review plans - they don't reverse engineer. I would also guess that occasionally the designer finds some error during the process of writing down the criteria, and self-corrects. Structural engineers don't just show how big a beam they are going to use, and what kind of connections. They show the calculations used to show that in accordance with generally accepted stardards, the beam and connections are adequate. Yours, Bruce Verhei ----- Original Message ----- From: "Bill Brooks" <[email protected]> To: [email protected] Sent: Wednesday, January 27, 2010 5:12:57 AM GMT -08:00 US/Canada Pacific Subject: How the Heck Did You Come Up With 0.58 over 2000? Wouldn't it be nice if sprinkler shop drawings for storage occupancies included a table or other method to show the derivation of the design density/area of coverage/head selection etc. As a suggestion, a table with the following data: Storage arrangement - Racks (single row, etc), shelf, bin box, solid pile, etc Rack height - Storage height - Shelf type - Aisle width - Commodity class - In-rack sprinklers - NFPA 13 table - NFPA 13 curve - Correction for height - In other words, show the steps used by the designer to get to the selected design parameters. Bill Brooks William N. Brooks, P.E. Brooks Fire Protection Engineering Inc. 372 Wilett Drive Severna Park, MD 21146-1904 410-544-3620 410-544-3032 FAX 412-400-6528 Cell _______________________________________________ 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) _______________________________________________ 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)
