saw an e-mail the other day about 18 foot trapeze spans. wished someone had asked me.
i would have said---either: section modulus is moment divided by stress. moment is half the force(lb) times half the distance(in). the force is the weight of the water-filled pipe plus 250. the distance is 4ab/a+b. the stress is 15,000. or: double the required section modulus for a nine foot span. Brad Casterline, NICET IV Fire Protection Division FSC, Inc. P: 913-722-3473 [email protected] www.fsc-inc.com Engineering Solutions for the Built Environment _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
