3003 W CASINO RD BLDG 45-11 2018-09-20

415-10 AIRPORT TERMINAL BUILDINGS,FUELING RAMP DRAINAGE,AND LOADING WALKWAYS the testing authority to obtain representative information on actual usage shall be accomplished by one of the following two the performance of the walkway specimen under test.None of methods: the thermocouples shall be located nearer to the edges of the test specimen than one and one-half times the thickness of the (1) Asuperimposed load to the specimen shall be applied in a construction or 12 in. (305 mm).Thermocouples shall not be manner calculated to develop theoretically the design- located opposite or on top of beams, girders,or other struc- allowable stresses contemplated by the design during the tural members. test described in 6.4.2. (2) The yield strength of the structural medium shall be cor- 6.4.4.3 Temperature readings shall be taken at intervals not related to the maximum temperature recorded in 6.4.2. exceeding 15 seconds. Structural submittals shall be made using this new yield 6.4.4.4 Where the conditions of acceptance place a limitation strength showing nonfailure conditions have been met. on the temperature of the unexposed surface, the tempera- 6.4.6.2.1 Worst-case load combinations shall be derived from ture end point of the fire-endurance period shall be deter- the following: mined by the average of the measurements taken at individual points. If a temperature rise of 30 percent in excess of the (1) Floor live load:40 lb/ft2 (195 kf./m2) specified limit occurs at any one of these points, the remain- (2) Roof load:25 lb/ft2 (122 kg/m ) der shall be ignored and the fire-endurance period judged as (3) Wind load: 12.5 lb/ft2 (61 kg/m2) having ended. 6.4.6.3 The test shall be successful when the following condi- 6.4.5 Test Specimen. tions of acceptance are met: 6.4.5.1 The test specimen shall be representative of the con- (1) The wall or floor section shall have sustained the applied struction for the classification desired in regard to materials, load during the fire-endurance test without passage of workmanship, and details such as dimensions of parts and flame for a minimum period of 5 minutes.Flaming shall shall be built under conditions representative of actual air- not appear on the unexposed face. craft loading walkway construction and operation.The physi- (2) The maximum allowable surface temperature of the cool cal properties of the materials and ingredients used in the test side of a wall or floor section shall not exceed 250°F specimen shall be determined and recorded. (121°C) during a 5-minute exposure as determined by 6.4.5.2 The test specimen shall be protected during and after 6.4.4.4. fabrication to ensure normality of its quality and condition at the time of the test.The ambient air temperature at the begin- 6.4.7 Tests of Flexible Closures. ning of the test shall be within the range of 50°F to 90°F(10°C 6.4.7.1 The test specimen area exposed to the test fire shall to 32°C).The velocity of air across the unexposed surface of not be less than 2 ft x 2 ft(0.62 in x 0.62 m).The test specimen the sample, measured just before the test begins, shall not shall be representative of all elements of the flexible closure, exceed 4.4 ft/sec(1.3 m/s),as determined by an anemometer including framework assembly and mechanisms for attach- placed at right angles to the unexposed surface.If mechanical ment to the aircraft loading walkway. ventilation is employed during the test,an air stream shall not be directed across the surface of the specimen. 6.4.7.2 The test shall be successful when all the conditions of 6.4.5.3* The fire-endurance test shall be continued on the acceptance in 6.4.7.2.1 through 6.4.7.2.3 are met. specimen with its applied load,if any,until failure occurs, or 6.4.7.2.1 The test specimen shall have withstood the fire- until the specimen has withstood the test conditions for a pe- endurance test as defined by the time—temperature curve for riod of 10 minutes. external walkway wall exposure in Figure 6.4.2 without passage 6.4.5.4 Results shall be reported in accordance with the per- of flame for a minimum period of 5 minutes. formance in the tests prescribed in these methods. Time— 6.4.7.2.2 The closure material also shall pass the following temperature results shall be reported at 15-second intervals. test, designed to measure the radiant heat flux to which hu- Reports shall include observations of significant details of the mans can be subjected while exiting an aircraft under a fuel behavior of the material or construction during the test and after the furnace fire is cut off, including information on de- spill fire emergency condition.A specimen of the closure formation,spalling, cracking, burning of the specimen or its material that reproduces the most expanded actual field component parts,continuance of flaming,and production of operating configuration, regarding folds and pleats, existft . smoke. ing 6 (1.8 m) above the floor shall be tested in a furnace. The furnace temperature applied to the exposed exterior 6.4.6 Tests of Walls and Floors. surface of the closure material shall be raised in accordance 6.4.6.1 The dimensions of the sample to be tested shall be with the time—temperature curve for external walkway wall determined based on the construction features of the specific exposure in Figure 6.4.2.Measurements shall be taken by a walkway being tested. The dimensions selected shall ensure radiometer positioned between a minimum distance of that the sample,when tested, will demonstrate the ability of 39.4 in. (1 m) and a maximum distance of 78.7 in. (2 m) the most critical elements of the walkway to withstand stress away from the cool side surface of the test specimen. The concentrations without failure and without separations that radiometer shall have a view angle small enough such that it would permit fire and smoke intrusion.Verification documen- "sees"only the test specimen and not the frame or furnace wall. The approximate equivalent human exposure in talion supporting the selection of the dimensions shall be ap- the proved by the authority having jurisdiction. walkway shall not exceed 0.65 W/cm . The approximate equivalent human exposure shall be calculated by multiply- 6.4.6.2 The effect of exposure to elevated temperatures of ing the maximum actual radiometer reading for the test in working stress seen as worst-case load combinations during W/cm2 at the radiometer by the following: 2008 Edition