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• II. To [hc .�us::cr obtaincd 1n E, suUtract [hc valuo nbt;ilncd in F ;:nd add ;}ii. <br /> valuc obtained in G. <br /> Round oII the final ansG�er [o Lhe nearcat 250 �pm if less [han 2500 gpm and <br /> to the neares[ 500 spm if grea[er than 2500 gpm. <br /> Use of Tables (5[pps A B1� D) <br /> The tables use the GROLT7D AREA of the building and the heigh[ of the buildine <br /> ic� stories. L'sing the table correspanding to the type of construc[ion, look under <br /> the number of staries and loca[e Che ground area oY [he building(s) being considered <br /> be[ween tGo ground areas given in the table. The corresponding fire flou is found <br /> in the left r�lucm. <br /> Examples <br /> a. Given: A 3- story building of ordinary construct3on of 7300 square fee[ <br /> (ground area) . Using the table C = 1.0, in the 3-s.*.ory coluam, 7300 square <br /> fee[ falls bet�een 7100 and 8500 square feet and ihe corresponding fire <br /> " flow is 2750 gpm. <br /> b. Give:n: A 3-story bui2ding of ordinary construction of 7300 square feet <br /> i <br /> (ground area) cou�unicating to a 5-story building of ordinary construction <br /> of 9700 square feet (ground area) for a total ground area of 17,000 square <br /> feet. Determine the total floor area which equals 3 (7300) T 5 (9700) _ <br /> 70,400 square feel-. Using the table C = 1.0, under rhe one s[ory colu� <br /> for 70,400 square feet the corresponding fire flrn: is 4750 gpm. <br /> i <br /> c. Given: A 3-story wood frame building of 7300 square feet (ground area) <br /> communicating with a 5-story building of ordinary construction of 9)00 <br /> square feet (ground area) for a total ground area of 17,000 square fee[. <br /> De:ermine the total floor area for each type of construction and for the <br /> fire area �.�hich is 3 (7300) = 21,900 square feet of vood frame construc- <br /> [ion, 5 (9700) = 48,500 square feet of ordinary construction, and a total <br /> area of 70,400 square feet with 31Y. being of wood frame cons[ruction and <br /> 69X being of ordinary construction. Under [he one-story colu�an in the <br /> woud fraae construction table (C = 1.5) , an area of 70,400 square feet <br /> has a corresponding fire flow of 7250 gpm. Sic�ilarly, under the one-story <br /> column in the ordina=� construction table (C = 1.0), an area af 70,400 <br /> square feet has a corresponding fire-Elow of 4750 gpm. In this case, the <br /> fire flou will be 31X (7250) + 69�G (4750) = 2250 + 3280 = 5530 gpm or, [o <br /> the neatest 250 gpm = 5500 gpm. <br /> d. Given: A 2-story building consisting of 10,000 square feet (ground area) <br /> of wood frame construction, 15,000 square fee[ (ground area) of ordinary <br /> construction, 20,000 square feet (ground area) of noncembustible con- <br /> struction, and 25,000 square feet (ground area) of fi:e resis[ive con- <br /> struction. The [otal floor area is 140,000 square feet. The oaximum fire <br /> flov for Wood frame construction is at 85,100 square feet (see [able) . <br /> Note: "kfien the total area exceeds [he upper limi[ for the poorest type of <br /> � construc[ion, limi[ the floor area of [he hest type(s) of construction so <br /> tha[ the total area consi.dered does no[ exceed [he upper limit for the <br /> poorest type of construction." Consider 2 r. 10,000 = 20,000 sqiare feet <br /> -4- <br />