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Fire Flow Report0 P- C) q -')t FIRE FLOW ANALYSIS UNDER THE IFC 2000 For: Vision Mission Church (formerly the Korean Mission Church of Texas A &M) Prepared By: CSC Engineering & Environmental Consultants, Inc. April 26, 2004 F 0 0NUN, ,IS. / 44.481 a. • DC �C • 1D SUMMARY OF FIRE FLOW ANALYSIS (Code Analysis Per International Fire Code 2000) I. BUILDING INFORMATION Building T III B Minimum Distance Flow Number Number of Stories: One (1) 2 of Hydrants Between Hydrants feet Building Fire Area: 14,400 square feet 2 Fire Flow Requirement of Building Use: Church 1,500 gpm Building Sprinkled: Yes II. CODE ANALYSIS — REQUIRED FIRE FLOWS AND DURATION Minimum Required Fire Flow and Flow Duration for Buildings Table B105.1 from l FC 2000 FIRE FLOW (gallons per minute FLOW DURATION ours Minimum Distance Flow Number For Building Type III B of 14,440 square feet size 2,500 2 of Hydrants Between Hydrants feet Street or Road Frontage to a Hydrant feet Reduction in required fire flow of up to 75 percent because building is sprinkled 625 1 ' 2 Notes: a. Resulting fire flow (from sprinkler reduction) shal not be less that 1,500 gallons per minute (Section B 105.2 of IBC 2000) III. CODE ANALYSIS — NUMBER AND DISTRIBUTION OF FIRE HYDRANTS (Table C105.1 from IFC 2000) Fire Minimum Average Minimum Distance Flow Number Spacing from Any Point on Requirement (gamems per minute) of Hydrants Between Hydrants feet Street or Road Frontage to a Hydrant feet Fire Flow Requirement of 1 500 250 1,500 gpm Appendix B FIRE -FLOW REQUIREMENTS FOR BUILDINGS SECTION B101 GENERAL B101.1 Scope. The procedure for determining fire -flow re- quirements for buildings or portions of buildings hereafter con- structed shall be in accordance with this appendix. This appendix does not apply to structures other than buildings. B104.3 Type IA and Type IB construction. The fire area of buildings constructed of Type IA and Type IB construction shall be the area of the three largest successive floors. Exception: Fire area for open parking garages shall be de- termined by the area of the largest floor. SECTION B105 FIRE -FLOW REQUIREMENTS FOR BUILDINGS SECTION B102 DEFINITIONS B102.1 Definitions. For the purpose of this appendix, certain terms are defined as follows: FIRE AREA. The floor area, in square feet, used to determine the required fire flow. FIRE FLOW. The flow rate of a water supply, measured at 20 pounds per square inch (psi) (138 kPa) residual pressure, that is available for fire fighting. SECTION B103 MODIFICATIONS B103.1 Decreases. The fire chief is authorized to reduce the fire -flow requirements for isolated buildings or a group of buildings in rural areas or small communities where the devel- opment of full fire -flow requirements is impractical. B103.2 Increases. The fire chief is authorized to increase the fire -flow requirements where conditions indicate an unusual susceptibility to group fires or conflagrations. An increase shall not be more than twice that required for the building under con- sideration. B103.3 Areas without water supply systems. For informa- tion regarding water supplies for fire - fighting purposes in rural and suburban areas in which adequate and reliable water supply systems do not exist, the code official is authorized to utilize NFPA 1142 or the IFCI Urban Wildland Interface Code. SECTION 8104 FIRE AREA B104.1 General. The fire area shall be the total floor area of all floor levels within the exterior walls, and under the horizontal projections of the roof of a building used to protect storage or use areas, except as modified in Sections B 104.2 and B 104.3. B104.2 Area separation. Portions of buildings which are sepa- rated by fire walls without openings constructed in accordance with the International Building Code are allowed to be consid- ered as separate fire areas. B105.1 One- and two -family dwellings. The minimum fire flow requirements for one- and two - family dwellings having a fire area which does not exceed 3,600 square feet (344 m shall be 1,000 gallons per minute (3785 Umin). Fire flow and flow duration for dwellings having a fire area in excess of 3,600 square feet (344 m shall not be less than that specified in Table B105.1. Exception: A reduction in required fire flow of 50 percent, as approved, is allowed where the building is equipped throughout with an approved automatic sprinkler system in accordance with Chapter 9 of the International Fire Code. B105.2 Buildings other than one- and two -family dwellings. The minimum fire flow and flow duration for buildings other than one- and two - family dwellings shall be as specified in Ta- ble B105.1. Exception: A reduction in required fire flow of up to 75 per- cent a �pjroved is allowed wh en the building ispro a __ with an app roved automatic spnnkler system installed in aS ._...__ c ordance with S 9_0_3 or 9 03.3.1.2 of the I n te rn -_ tional Fire Code. The resulting fire flow shall not be less than 1,500 gallons per minute (5678 Umin.). SECTION B106 REFERENCED STANDARDS NFPA 1142 Standard on Water B 103.3 Supplies for Suburban and Rural Fire Fighting IFCI UWIC Urban Wildland B 103.3 Interface Code 2000 INTERNATIONAL FIRE CODE® 357 APPENDIX B FIRE -FLOW REQUIREMENTS FOR BUILDINGS TABLE 8105.1 MINIMUM REQUIRED FIRE FLOW AND FLOW DURATION FOR RWLDINGS FIRE AREA (square feet) FIRE FLOW (gallons per minute) FLOW DURATION (hours) Type IA and 113* Type IIA and IIIA' Type IV and V A' Type 116 and IIIB' Type V B' 0- 22,700 0- 12,700 0 -8,200 0 -5,900 0 -3,600 1,500 22,701- 30,200 12,701- 17,000 8,201- 10,900 5,901 -7,900 3,601 -4,800 1,750 30,201 - 38,700 17,001- 21,800 10,901- 12,900 7,901 -9,800 4,801 -6,200 2,000 38,701 - 48,300 21,801- 24,200 12,901- 17,400 9,801 - 12,600 6,201 -7,700 2,250 2 48,301 - 59,000 24,201 - 33,200 17,401- 21,300 12,601- 15,400 7,701 -9,400 2,500 59,001- 70,900 33,201 - 39,700 21,301- 25,500 15,401- 18,400 9,401 - 11,300 2,750 70,901 - 83,700 39,701 - 47,100 25,501- 30,100 18,401- 21,800 11,301- 13,400 3,000 83,701 - 97,700 47,101 - 54,900 30,101- 35,200 21,801- 25,900 13,401- 15,600 3,250 3 97,701- 112,700 54,901- 63,400 35,201- 40,600 25,901- 29,300 15,601- 18,000 3,500 112,701 - 128,700 63,401 - 72,400 40,601 - 46,400 29,301 - 33,500 18,001- 20,600 3,750 128,701- 145,900 72,401 - 82,100 46,401 - 52,500 33,501- 37,900 20,601- 23,300 4,000 145,901- 164,200 82,101- 92,400 52,501 - 59,100 37,901 - 42,700 23,301- 26,300 4,250 164,201 - 183,400 92,401 - 103,100 59,101- 66,000 42,701 - 47,700 26,301- 29,300 4,500 183,401 - 203,700 103,101- 114,600 66,001 - 73,300 47,701 - 53,000 29,301- 32,600 4,750 203,701- 225,200 114,601- 126,700 73,301 - 81,100 53,001 - 58,600 32,601- 36,000 5,000 225,201- 247,700 126,701 - 139,400 81,101- 89,200 58,601- 65,400 36,001- 39,600 5,250 4 247,701 - 271,200 139,401 - 152,600 89,201- 97,700 65,401- 70,600 39,601- 43,400 5,500 271,201 - 295,900 152,601- 166,500 97,701 - 106,500 70,601 - 77,000 43,401- 47,400 5,750 295,901- Greater 166,501- Greater 106,501- 115,800 77,001 - 83,700 47,401 - 51,500 6,000 - - 115,801- 125,500 83,701- 90,600 51,501 - 55,700 6,250 - - 125,501- 135,500 90,601 - 97,900 55,701- 60,200 6,500 - - 135,501 - 145,800 97,901 - 106,800 60,201- 64,800 6,750 - - 145,801 - 156,700 106,801 - 113,200 64,801- 69,600 7,000 - - 156,701 - 167,900 113,201 - 121,300 69,601 - 74,600 7,250 - - 167,901 - 179,400 121,301 - 129,600 74,601- 79,800 7,500 - - 179,401 - 191,400 129,601 - 138,300 79,801- 85,100 7,750 - - 191,401- Greater 138,301- Greater 85,101- Greater 8,000 For SI: 1 square foot = 0.0929 m 1 gallon per minute = 3.785 Lm, 1 pound per square inch = 6.895 kPa. a. Types of construction are based on the International Building Code. b. Measured at 20 psi. 358 2000 INTERNATIONAL FIRE CODE® • Appendix C FIRE HYDRANT LOCATIONS AND DISTRIBUTION SECTION C101 GENERAL C101.1 Scope. Fire hydrants shall be provided in accordance with this appendix for the protection of buildings, or portions of buildings, hereafter constructed. SECTION C102 LOCATION C102.1 Fire hydrant locations. Fire hydrants shall be pro- vided along required fire apparatus access roads and adjacent public streets. SECTION C103 NUMBER OF FIRE HYDRANTS C103.1 Fire hydrants available. The minimum number of fire hydrants available to a building shall not be less than that listed in Table C105. L The number of fire hydrants available to a complex or subdivision shall not be less than that determined by spacing requirements listed in Table C 105.1 when applied to fire apparatus access roads and perimeter public streets from which fire operations could be conducted. SECTION C104 CONSIDERATION OF EXISTING FIRE HYDRANTS C104.1 Existing fire hydrants. Existing fire hydrants on pub- lic streets are allowed to be considered as available. Existing fire hydrants on adjacent properties shall not be considered available unless fire apparatus access roads extend between properties and easements are established to prevent obstruction of such roads. SECTION C105 DISTRIBUTION OF FIRE HYDRANTS C105.1 Hydrant spacing. The average spacing between fire hydrants shall not exceed that listed in Table C105.1. Exception: The fire chief is authorized to accept a defi- ciency of up to 10 percent where existing fire hydrants pro- vide all or a portion of the required fire hydrant service. Regardless of the average spacing, fire hydrants shall be lo- cated such that all points on streets and access roads adjacent to a building are within the distances listed in Table C105.1. TABLE C105.1 K—SER AND ni43TRIRI1TIAN OF FIRE HYDRANTS FIRE -FLOW REQUIREMENT (911m) MINIMUM NUMBER OF HYDRANTS AVERAGE SPACING BETWEEN HYDRANTS' b, ° (feet) MAXIMUM DISTANCE FROM ANY POINT ON STREET OR ROAD FRONTAGE TO A HYDRANT 1,750 or less 1 500 250 2,000 -2,250 2 450 225 2,500 3 450 225 3,000 3 400 225 3,500 -4,000 4 350 210 4,500 -5,000 5 300 180 5,500 6 300 180 6,000 6 250 150 6,500 -7,000 7 250 150 7,500 or more 8 or more' 200 120 For SI: 1 foot = 304.8 mm, 1 gallon per minute = 3.785 Um. a. Reduce by 100 feet for dead -end streets or roads. b. Where streets are provided with median dividers which can be crossed by fire fighters pulling hose lines, or where arterial streets are provided with four or more traffic lanes and have atraffic count of more than 30,000 vehicles per day, hydrant spacing shall average 500 feet on each side of the street and be arranged on an al- ternating basis up to a fire-flow requirement of 7,000 gallons per minute and 400 feet for higher fire-flow requirements. c. Where new water mains are extended along streets where hydrants are not needed for protection of structures or similar fire problems, fire hydrants shall be pro- vided at spacing not to exceed 1,000 feet to provide for transportation hazards. d. Reduce by 50 feet for dead -end streets or roads. e. One hydrant for each 1,000 gallons per minute or fraction thereof. 2000 INTERNATIONAL FIRE CODE® 359