1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS F 2848 KS F 2848 :2010 2010 12 28 http:/www.kats.go.krKS F 2848:2010 : ( ) ( ) ()ANC () LH ( ) : (http:/www.standard.go.kr) ： ：2005 9 2 ：2010 12 28 2010-0636 ： ： ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS F 2848:2010 Method for calculating fire p
2、rotective thickness of structural steel according to section factor 1 , , . 2 . . ( ) . KS D 3502, KS D 3566, KS D 3568, KS F 22571, KS F 22576, KS F 22577, 3 . 3.1 H P /A(m 1 ) H P ： (m) A ： (m 2 ) 3.2 KS F 2848:2010 2 3.3 3.4 KS F 22571, KS F 22576, KS F 22577 7. 3.5 KS F 22571, KS F 22576, KS F 2
3、2577 , 3.6 1 m, 1.5 m 3.7 3.8 K . 0 1 , 0 , 1 . 3.9 KS F 22571, KS F 22576, KS F 22577 . . 4 1 , KS D 3502 , I, , T, H KS D 3566, KS D 3568 110 . KS F 2848:2010 3 H 4B2H2t 3B2H2t 2B2H T 2B2H B2H 2B2Ht 2B2H B2H 2B2Ht 4B2H2t 4BH2t 3B2H2t 2B2H B2H 2B2H H H 1 (H P ) 5 5.1 , KS F 22571, KS F 22576, KS F
4、22577 . 5.1.1 1 . KS F 2848:2010 4 1 ( ) (H P /A) mm 3 4 K 300200812 300200812 4 m 161.9 161.9 1.0 0.0 3001506.59 3001506.59 250175711 250175711 350175711 350175711 1.5 m 221.7 221.7 177.6 177.6 191.8 191.8 0.2 0.8 0.5 0.4 0.5 0.8 10010068 3 m 268.5 1.0 H 150150710 200200812 2502501414 3503501219 1
5、m 220.7 186.4 142.5 119.4 0.0 1.0 0.2 0.3 5.1.2 2 . , 3 . KS F 2848:2010 5 2 ( ) (H P /A) mm 3 4 K 400200711 4 m 190.5 1.0 250175711 350175711 400200711 6003001423 1.5 m 177.6 191.8 190.5 92.9 200200812 3 m 186.4 1.0 H 150150710 200200812 250250914 2502501414 1 m 220.7 186.4 160.8 142.5 3002006.0 4
6、m 138.8 1.0 1501009.0 3002006.0 1.5 m 100.8 138.8 2002006.0 3 m 133.8 1.0 75753.2 1001004.5 1251255.0 1501505.0 2002006.0 25025012.0 30030012.0 1 m 336.1 240.0 214.0 211.6 133.8 90.5 89.2 5.1.3 3 . 3 ( ) (H P /A) mm 4 K 200200812 3 m 186.4 1.0 150150710 220.7 0.0 200200812 186.4 1.0 2502501414 142.5
7、 0.2 H 3503501219 1 m 119.4 0.3 2002006 3 m 133.8 1.0 1501505 211.6 0.0 2002006 133.8 1.0 25025012 90.5 0.2 35035012.5 1 m 88.3 0.3 KS F 2848:2010 6 5.2 5.2.1 KS F 22571, KS F 22576, KS F 22577 . a) , 10 % . b) 5.2.1.1 , 5.2.1.2 . c) KS F 22571 6.3 . 5.2.1.1 KS F 22571, KS F 22577 , KS F 22571, KS F
8、 22576 2 T . 2 KS F 22571, KS F 22576 5.2.1.2 KS F 22571, KS F 22576, KS F 22577 3 , 2 . 1 m, 1.5 m . 4 m KS F 2848:2010 7 3 5.2.2 5.2.1 . 5.2.3 KS F 22571, KS F 22577 . 5.2.3.1 KS F 22571, KS F 22577 . 5.2.3.2 KS F 22571, KS F 22577 3 , 1 m . 6 4. , 5.1 , 5.2 . . , 6.1 6.2 , , 7. . 6.1 . 6.1.1 KS F
9、 2848:2010 8 KS F 22571, KS F 22576, KS F 22577 . , 538 538 . 6.1.2 . a) ( ) (1) (k 0 , k 1, k 2 ) . t k H tA k k FR P 2 1 0 / ) ( (1) FR ： () k 0 , k 1,k 2 ： t ： (mm) b) (1) (k 0 , k 1, k 2 ) (R 2 ) 0.95 . c) (2) . ) / ( ) ( 2 1 0 k H A k k FR t P (2) d) , . 6.2 . 6.2.1 KS F 22571, KS F 22576, KS F
10、 22577 . , 538 538 . 6.2.2 (3) . ) ( ) ( ) ( ) ( ) ( 1 1 2 1 2 1 1 x x x x x t x t x t x t (3) t 1 (x) ： (x) t(x 2 ) ： (x 2 ) t(x 1 ) ： (x 1 ) x ：x 2 x 1 KS F 2848:2010 9 x 2 , x 1 ： 7 7.1 a) , I, , T, H , 3 4 , 4 . 3 4 4 3 4 b) , . c) 1) (web) 700 mm (flange) 300 mm . d) H (t) (t ) , (t ) 250 m 1 0
11、00 1 / 1 A H t P . 25 0 310 m 1 1.25 t . e) , I, , T (bracing) , H (t) 200 m 1 . 7.2 a) H , 4 , 4 . b) 7.1 c) . 7.3 a) H , 3 4 , 4 . b) , , . 10 % . c) 7.1 c) . d) . 1) KS F 2848:2010 10 8 . a) b) c) d) e) f) g) h) (/ ) i) j) k) l) m) n) KS F 2848:2010 11 1 H (H P /A) (H P /A) / 3 4 4 () HB t 1t 2r
12、mm mm mm mm mm cm 2k g / m m 1m 1m 110050 10050 5 7 8 11.85 9.30 286.9 329.1 253.2 100100 100100 6 8 10 21.90 17.20 222.8 268.5 182.6 12560 12560 6 8 9 16.84 13.20 248.2 283.8 219.7 125125 125125 6.5 9 10 30.31 23.80 201.9 243.2 165.0 15075 15075 5 7 8 17.85 14.00 288.5 330.5 252.1 150100 148100 6 9
13、 11 26.84 21.10 217.6 254.8 184.8 150150 150150 7 10 11 40.14 31.50 183.4 220.7 149.5 17590 17590 5 8 9 23.04 18.10 264.8 303.8 230.0 175175 175175 7.5 11 12 51.21 40.20 167.9 202.1 136.7 19899 4.5 7 11 23.18 18.20 295.1 337.8 256.3 200100 200100 5.5 8 11 27.16 21.30 253.7 290.5 220.9 200150 194150
14、6 9 13 39.01 30.60 211.7 250.2 176.4 200200 8 12 13 63.53 49.90 154.9 186.4 125.9 200200 200204 12 12 13 71.53 56.20 138.1 166.6 113.0 248124 5 8 12 32.68 25.70 262.5 300.5 227.7 250125 250125 6 9 12 37.66 29.60 229.2 262.3 199.2 250175 244175 7 11 16 56.24 44.10 177.6 208.7 149.0 250250 9 14 16 92.
15、18 72.40 133.7 160.8 108.5 250250 250255 14 14 16 104.70 82.20 118.1 142.5 96.5 298149 5.5 8 13 40.80 32.00 252.9 289.5 219.1 300150 300150 6.5 9 13 46.78 36.70 221.7 253.7 192.4 300200 294200 8 12 18 72.38 56.80 161.9 189.6 136.5 294302 12 12 18 107.70 84.50 136.5 164.5 110.7 300300 10 15 18 119.80
16、 94.00 123.5 148.6 100.2 300300 300305 15 15 18 134.80 106.00 110.2 132.8 89.8 346174 6 9 14 52.68 41.40 228.2 261.2 197.4 350175 350175 7 11 14 63.14 49.60 191.8 219.5 166.3 350250 340250 9 14 20 101.50 79.70 139.1 163.7 116.3 344348 10 16 20 146.00 115.00 117.3 141.1 94.8 350350 350350 12 19 20 17
17、3.90 137.00 99.3 119.4 80.5 KS F 2848:2010 12 1 H (H P /A)() (H P /A) / 3 4 4 () HB t 1t 2r mm mm mm mm mm cm 2k g / m m 1m 1m 1396199 7 11 16 72.16 56.60 190.5 218.1 164.9 400200 400200 8 13 16 84.12 66.00 164.5 188.3 142.7 400300 390300 10 16 22 136.00 107.00 122.1 144.1 101.5 388402 15 15 22 178.
18、50 140.00 109.4 131.9 88.5 394398 11 18 22 186.80 147.00 104.9 126.2 84.8 400400 13 21 22 218.70 172.00 90.3 108.6 73.2 400408 21 21 22 250.70 197.00 79.1 95.3 64.5 414405 18 28 22 295.40 232.00 67.9 81.7 55.5 428407 20 35 22 360.70 283.00 56.5 67.8 46.3 458417 30 50 22 528.60 415.00 39.9 47.7 33.1
19、400400 498432 45 70 22 770.10 605.00 28.6 34.2 24.2 450300 440300 11 18 24 157.40 124.00 111.7 130.7 94.0 496199 9 14 20 101.30 79.50 155.1 174.7 137.2 500200 10 16 20 114.20 89.60 138.4 155.9 122.6 500200 506201 11 19 20 131.30 103.00 121.3 136.6 107.7 482300 11 15 26 145.50 114.00 126.6 147.2 107.
20、5 500300 488300 11 18 26 163.50 128.00 113.4 131.7 96.4 596199 10 15 22 120.50 94.60 146.8 163.3 132.0 600200 11 17 22 134.40 106.00 132.3 147.2 119.0 600200 606201 12 20 22 152.50 120.00 117.4 130.6 105.8 582300 12 17 28 174.50 137.00 116.9 134.1 101.1 588300 12 20 28 192.50 151.00 106.6 122.2 92.3
21、 600300 594302 14 23 28 222.40 175.00 92.9 106.5 80.6 692300 13 20 28 211.50 166.00 106.8 120.9 93.8 700300 700300 13 24 28 235.50 185.00 96.6 109.3 84.9 792300 14 22 28 243.40 191.00 100.9 113.2 89.7 800300 800300 14 26 28 267.40 210.00 92.4 103.7 82.3 890299 15 23 28 270.90 213.00 97.7 108.7 87.8
22、900300 16 28 28 309.80 243.00 86.1 95.8 77.5 900300 912302 18 34 28 364.00 286.00 74.0 82.3 66.7 KS F 2848:2010 13 2 (H P /A) (H P /A) / 3 4 AB t r 1r 2 mm mm mm mm cm 2k g / m m 1m 1m 12525 3 4 2 1.427 1.12 525.6 679.7 700.8 3030 3 4 2 1.727 1.36 521.1 677.5 694.8 4040 3 4.5 2 2.336 1.83 513.7 672.
23、1 684.9 4040 5 4.5 3 3.755 2.95 319.6 412.8 426.1 4545 4 6.5 3 3.492 2.74 386.6 504.0 515.5 4545 5 6.5 3 4.302 3.38 313.8 406.8 418.4 5050 4 6.5 3 3.892 3.06 385.4 503.6 513.9 5050 5 6.5 3 4.802 3.77 312.4 406.1 416.5 5050 6 6.5 4.5 5.644 4.43 265.8 343.7 354.4 6060 4 6.5 3 4.692 3.68 383.6 503.0 51
24、1.5 6060 5 6.5 3 5.802 4.55 310.2 405.0 413.7 6565 5 8.5 3 6.367 5.00 306.3 400.5 408.4 6565 6 8.5 4 7.527 5.91 259.1 337.5 345.4 6565 8 8.5 6 9.761 7.66 199.8 258.2 266.4 7070 6 8.5 4 8.127 6.38 258.4 337.1 344.5 7575 6 8.5 4 8.727 6.85 257.8 336.9 343.8 7575 9 8.5 6 12.690 9.96 177.3 229.3 236.4 7
25、575 12 8.5 6 16.560 13.00 135.9 173.9 181.2 8080 6 8.5 4 9.327 7.32 257.3 336.7 343.1 9090 6 10 5 10.550 8.28 255.9 335.5 341.2 9090 7 10 5 12.220 9.59 220.9 288.9 294.6 9090 10 10 7 17.000 13.30 158.8 205.9 211.8 9090 13 10 7 21.710 17.00 124.4 159.8 165.8 100100 7 10 5 13.620 10.700 220.3 288.5 29
26、3.7 100100 10 10 7 19.000 14.900 157.9 205.3 210.5 100100 13 10 7 24.310 19.100 123.4 159.2 164.5 120120 8 12 5 18.760 14.700 191.9 251.6 255.9 130130 9 12 6 22.740 17.900 171.5 224.7 228.7 130130 12 12 8.5 29.760 23.400 131.0 170.7 174.7 130130 15 12 8.5 36.750 28.800 106.1 137.4 141.5 150150 12 14 7 34.770 27.300 129.4 169.1 172.6 KS F 2848:2010 14 2 (H P /A)() (H P /A) / 3 4 AB t r 1r 2 mm mm mm mm cm 2k g / m m 1m 1m 1150150 15 14 10 42.740 33.600 105.3 136.9 140.4 150150 19 14 10 53.380 41.900 84.3 108.8 112.4 175175 12 15
