steel section fire resistant-hpa value
TRANSCRIPT
Steel section Profile protection
Universal beams, universal 4 sides 3 sides .3 sides 2 sides 1 side
(plain and castellated) ~
~ Partially exposed Partially exposed
~ H~ 2B+2D+2(B—t) B+2D÷2(B —t) B÷2d÷(B—t) B+D+2(B— t)/2 B=4B+2D—2t =3B+2D—2t =2B+2d— t =2B÷D—t
Structural and rolled tees 4 sides 3 sides 3 sides
-/V ,~ V/-V,~Zy7/
~ TLTLD~f~~It Flange to soffit Toe of web to soffit
H~ 2B+2D B+2D B+2D÷(B_ t)
= 2B + 2D — t
Angles 4 sides 3 sides 3 sides
...
DIj”T Flange to soffit Toe of flange to soffit
~I-4-t H~, 2B+2D B+2D B+2D-t-(B— t)
=2B+2D — t
Channels 4 sides 3 sides 3 sides... -‘yzy zzZz ,~ -½Y /~
~DJ t Web to soffit Flange to soffit
~ H~ 2B+2D+2(B— t) 2B+D+2(B— t) B+2D+2(B_- t)=4B+2D—2t =4B+D—2t =3B+2D—2t
Hollow sections, 4 sides 3 sidessquare or rectangular
H~ 2B+2D B+2D
Hollow sections,circular
0HpQ
Example a) Profile protection — 4 sided exposure b) Profile protection — 3 sided exposureusing 203 x 203 x 52 leg/rn H = 4B + 2D — 2t H = 3B + 2D —21universal column
.. H~, 4x203.9+2x206.2— 2x8.0 =611.7+412.4—16B 203.9mm; D 206.2 mm 1008mm=1.008mt = 8.0mm. A 66.4cm2 1212 mm = I .2l2m H/A = 1.008/0.00664 = l5l.8m~
Hr/A 1.212/0.00664 182.5m’
Figure 4. Protection configurations with values of perimeter H~ for use in the calculation of section factor, H~JA
Note: The values are approximate in that radii at corners and roots of all sections are ignored
13
Steel section Box and solid protection
Universal beams , universal 4 sides 3 sides 3 sides 2 sides 1 sidecolumns and joists ~ ‘zzzzzzz’.~-’,-(plain and castellated) ~J_{f’ d]~_~~j~
Partially exposed Partially exposed
H~ 2B+2D B+2D B+2d B+D B
Structural and rolled tees 4 sides 3 sides 3 sides
mi ‘irrir mrFlange to soffit Toe of web to soffit
H~ 2B+2D B+2D B+2D
Angles 4 sides 3 sides 3 sides
fl 7fl i~TFlange to soffit Toe of flange to soffit
HP 2B+2D B+2D B+2D
Channels 4 sides 3 sides 3 sides
~j ..i TIE 7UWeb to soffit Flange to soffit
H~ 2B+2D 2B+D B+2D
Hollow sections, 4 sides 3 sidessquare or rectangular
H~ 2B+2D B+2D
Hollow sections, .circular Note. The air space created in boxing a section improves the insulation and
~ a value of He/A, and therefore Hp, higher than that for profile protection: would be anomalous. Hence Hp is taken as the circumference of the tube
and not 4D.irD
P
Example continued c) Box — 4 sided exposure d) Box — 3 sided exposure
H~ = 2B+2D 407.8+412.4 H~ = B+2D = 203.9+412.4~
820.2mm 0.820 m 61 6.3 mm 0.616 m
:. Hr/A = 0.82/0.00664 = l23.Sm~ .~. Hr/A 0.616/0.00664 92.8iu~
Figure 4. cont’d
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4 B Section factor Hr/ATable 1.2 Profile Box
Universal columns D 3 sides 4 sides 3 sides 4 sides
L 1[_~, ~•~ ~T L_~ .__J :::jzz~ rDesignation Depth Width Thickness
of of — Area :Serial Mass per section section Web Flange of ~ ~ ~———~ L I Lsize metre D B t T section —‘ —
mm kg mm mm mm mm cm2 m1 m1 m’ m1
356x406 634 474.7 424.1 47.6 77.0 808.1 25 30 15 20551 455.7 418.5 42.0 67.5 701.8 30 35 20 25467 436.6 412.4 35.9 58.0 595.5 35 40 20 30393 419.1 407.0 30.6 49.2 500.9 40 45 25 35340 406.4 403.0 26.5 42.9 432.7 45 55 30 35287 393.7 399.0 22.6 36.5 366.0 50 65 30 45235 381.0 395.0 18.5 30.2 299.8 65 75 40 50
356x 368 202 374.7 374.4 16.8 27.0 257.9 70 85 45 60177 368.3 372.1 14.5 23.8 225.7 80 95 50 65153 362.0 370.2 12.6 20.7 195.2 90 110 55 75129 355.6 368.3 10.7 17.5 164.9 105 130 65 90
305x305 283 365.3 321.8 26.9 44.1 360.4 45 55 30 40240 352.6 317.9 23.0 37.7 305.6 50 60 35 45198 339.9 314.1 19.2 31.4 252.3 60 75 40 50158 327.2 310.6 15.7 25.0 201.2 75 90 50 65137 320.5 308.7 13.8 21.7 174.6 85 105 55 70118 314.5 306.8 11.9 18.7 149.8 100 120 60 8597 307.8 304.8 9.9 15.4 123.3 120 145 75 100
254x 254 167 289.1 264.5 19.2 31.7 212.4 60 75 40 50132 276.4 261.0 15.6 25.3 167.7 75 90 50 65107 266.7 258.3 13.0 20.5 136.6 90 110 60 7589 260.4 255.9 10.5 17.3 114.0 110 130 70 9073 254.0 254.0 8.6 14.2 92.9 130 160 80 110
203x203 86 222.3 208.8 13.0 20.5 110.1 95 110 60 8071 215.9 206.2 10.3 17.3 91.1 110 135 70 9560 209.6 205.2 9.3 14.2 75.8 130 160 80 11052 206.2 203.9 8.0 12.5 66.4 150 180 95 t2546 203.2 203.2 7.3 11.0 58.8 165 200 105 140
152x 152 37 161.8 154.4 8.1 11.5 47.4 160 190 100 13530 157.5 152.9 6.6 9.4 38.2 195 235 120 16023 152.4 152.4 6.1 6.8 29.8 245 300 155 205
16
Section factor Hr/ATable 1.3 ~ ‘~1~ Profile Box
Joists Dl ~ 3 sides 4 sides 3 sides 4 sides
~ ‘//////////~/; -~ - -- ——— -
Designation Depth Width ThiCkness Ar
Serial Mass per section section Web Flange of ,_=__i [J,size metre D B t T section
mm kg mm mm mm mm cm2 rn_i m~1 rn1 m~
254x203 81.85 254.0 203.2 10.2 19.9 104.4 95 115 70 90254x 114 37.20 254.0 114.3 7.6 12.8 47.4 165 190 130 155
203x 152 52.09 203.2 152.4 8.9 16.5 66.4 115 140 85 105203x 102 25.33 203.2 101.6 5.8 10.4 32.3 205 235 155 190
178x 102 21.54 177.8 101.6 5.3 9.0 27.4 225 260 165 205
152x 127 37.20 152.4 127.0 10.4 13.2 47.5 130 155 90 120152x 89 17.09 152.4 88.9 4.9 8.3 21.8 245 285 180 220152x 76 17.86 152.4 76.2 5.8 9.6 22.8 215 245 165 200
127x 114 29.76 127.0 114.3 10.2 11.5 37.3 140 175 100 130127x 114 26.79 127.0 114.3 7.4 11.4 34.1 155 190 110 140127x 76 16.37 127.0 76.2 5.6 9.6 21.0 205 245 155 195127x 76 13.36 127.0 76.2 4.5 7.6 17.0 265 310 195 240
114x 114 26.79 114.3 114.3 9.5 10.7 34.4 145 180 100 135
102x 102 23.07 101.6 101.6 9.5 10.3 29.4 150 185 105 140102x 64 9.65 101.6 63.5 4.1 6.6 12.3 295 345 215 270102x 44 7.44 101.6 44.4 4.3 6.1 9.5 320 365 260 305
89x 89 19.35 88.9 88.9 9.5 9.9 24.9 155 190 105 145
76x 76 14.67 76.2 80.0 8.9 8.4 19.1 175 220 120 16576x 76 12.65 76.2 j 76.2 5.1 8.4 16.3 205 250 140 185
B Section factor H IA. V1~~ Profile Box
Channels 1”~ff t 3 sides 4 sides 3 sides 4 sidesDj~j~T
L~ ~W///~ ~Z’////%~ r--~ ~ ~W///,~ ~7/////
Designation Depth Width Thickness Area ~ L~ IL L’~ LiSerial Mass per section section Web Flange of ——
size metre D B t T section
mm kg mm mm mm mm cm2 m~ m1 m~1 rn1 m’ m1 m~1 m1
432x 102 65.54 431.8 101.6 12.2 16.8 83.49 135 95 75 145 115 75 75 130381x102 55.10 381.0 101.6 10.4 16.3 70.19 145 105 85 160 125 85 85 140
305x 102 46.18 304.8 101.6 10.2 14.8 58.83 145 110 85 165 120 85 85 140305x 89 41.69 304.8 88.9 10.2 13.7 53.11 155 115 90 175 130 90 90 150254x 89 35.74 254.0 88.9 9.1 13.6 45.52 160 125 95 180 130 95 95 150254x 76 28.29 254.0 76.2 8.1 10.9 36.03 195 145 115 215 160 115 115 185
229x 89 32.76 228.6 88.9 8.6 13.3 41.73 165 130 95 185 130 95 95 150229x 76 26.06 228.6 76.2 7.6 11.2 33.20 195 150 115 220 160 115 115 185203x 89 29.78 203.2 88.9 8.1 12.9 37.94 165 135 100 190 130 100 100 155203x 76 23.82 203.2 76.2 7.1 11.2 30.34 195 155 115 220 160 115 115 185
178x 89 26.81 177.8 88.9 7.6 12.3 34.15 170 145 105 195 130 105 105 155178x 76 20.84 177.8 76.2 6.6 10.3 26.54 205 170 125 235 165 125 125 190152x 89 23.84 152.4 88.9 7.1 11.6 30.36 175 155 110 205 130 110 110 160152x 76 17.88 152.4 76.2 6.4 9.0 22.77 220 185 135 255 165 135 135 200
127x 64 14.90 127.0 63.5 6.4 9.2 18.98 215 185 135 250 165 135 135 200102x 51 10.42 101.6 50.8 6.1 7.6 13.28 245 210 155 285 190 155 155 23076x 38 6.70 76.2 38.1 5.1 6.8 8.53 285 240 180 330 225 180 180 270
17
t Section factor_Hr/ATable 1.5 Profile Box
Equal angles 3 sides 4 sides 3 sides 4 sides
rSize Thickness Mass Area
per ofDx D t metre section
mm mm kg cm2 m~ m1 m’ m~ rn1
200x 200 24 71.1 90.6 65 85 85 65 9020 59.9 76.3 75 100 105 80 10518 54.2 69.1 85 110 115 85 11516 48.5 61.8 95 125 125 95 130
150x 150 18 40.1 51.0 85 110 115 90 11515 33.8 43.0 100 135 135 105 14012 27.3 34.8 125 165 170 130 17010 23.0 29.3 150 200 200 155 205
120x 120 15 26.6 33.9 105 135 140 105 14012 21.6 27.5 125 170 170 130 17510 18.2 23.2 150 200 200 155 205
8 14.7 18.7 185 250 250 190 255
bOx 100 15 21.9 27.9 105 135 140 105 14512 17.8 22.7 130 170 170 130 175
8 12.2 15.5 185 250 250 195 255
90x 90 12 15.9 20.3 130 170 175 135 17510 13.4 17.1 150 200 205 155 210
8 10.9 13.9 190 250 250 195 2606 8.30 10.6 245 330 330 255 340
80x 80 10 11.9 15.1 155 205 205 160 2108 9.63 12.3 190 250 255 195 2606 7.34 9.35 250 330 335 255 340
70x 70 10 10.3 13.1 155 205 210 160 2158 8.36 10.6 190 250 255 195 2606 6.38 8.13 250 330 335 255 340
60x 60 10 8.69 11.1 155 205 210 160 2158 7.09 9.03 190 250 260 200 2656 5.42 6.91 250 330 335 260 3455 4.57 5.82 300 395 400 305 410
50x 50 8 5.82 7.41 195 255 260 200 2706 4.47 5.69 255 335 340 260 3505 3.77 4.80 300 400 405 310 415
45x45 6 4.00 5.09 255 335 340 265 3505 3.38 4.30 300 400 405 310 4154 2.74 3.49 370 490 495 385 510
40x 40 6 3.52 4.48 255 340 345 265 3555 2.97 3.79 305 400 410 315 4204 2.42 3.08 375 495 500 390 515
25x 25 5 1.77 2.26 315 415 430 335 4454 1.45 1.85 390 515 525 405 5453 1.11 1.42 505 680 685 530 710.
18
+ Section factor Hr/ATable 1.6 Profile Box
Unequal angles D~ ~ 3 sides 4 sides 3 ~ides 4 sides
H ~,‘,‘,‘, ~Y////~ ~7//% ~Z’////4 ~W//z
Designation Mass Area [IL~3 [I:: [[~ LL~i ~ [[~J L—~Size Thickness per of
Dx B t metre section
mm mm kg cm2 rn~ rn-i rn-1 rn4 m~ m~ rn1 rn1 rn-i rn~
200x 150 18 47.1 60.0 110 110 90 80 115 90 85 90 85 11515 39.6 50.5 135 135 105 95 135 110 100 110 100 14012 32.0 40.8 165 165 130 120 170 135 120 135 120 170
200x 100 15 33.7 43.0 135 135 115 90 135 115 95 115 95 14012 27.3 34.8 165 165 140 110 170 145 115 145 115 17010 23.0 29.2 195 195 165 135 200 170 135 170 135 205
150x 90 15 26.6 33.9 135 135 110 95 140 115 95 115 95 14012 21.6 27.5 165 165 140 115 170 140 120 140 120 17510 18.2 23.2 200 200 165 140 205 170 140 170 140 205
150x 75 15 24.8 31.6 135 135 115 90 140 120 95 120 95 14012 20.2 25.7 165 165 140 115 170 145 115 145 115 17510 17.0 21.6 200 200 170 135 205 175 140 175 140 210
125x 75 12 17.8 22.7 165 165 140 115 170 145 120 145 120 17510 15.0 19.1 200 200 165 140 205 170 145 170 145 210
8 12.2 15.5 245 245 205 170 250 210 175 210 175 260bOx 75 12 15.4 19.7 170 170 135 125 175 140 125 140 125 180
10 13.0 16.6 200 200 160 145 205 165 150 165 150 2108 10.6 13.5 250 250 200 180 255 205 185 205 185 260
lOOx 65 10 12.3 15.6 200 200 165 140 205 170 145 170 145 2108 9.94 12.7 245 245 200 175 255 210 180 210 180 2607 8.77 11.2 280 280 230 200 290 235 205 235 205 295
80x 60 8 8.34 10.6 250 250 200 180 255 210 190 210 190 2657 7.36 9.38 285 285 225 205 290 235 215 235 215 3006 6.37 8.11 330 330 265 240 335 270 250 270 250 345
75x 50 8 7.39 9.41 250 250 205 180 260 210 185 210 185 2656 5.65 7.19 330 330 270 235 340 275 240 275 240 345
65x 50 8 6.75 8.60 250 250 205 185 260 210 190 210 190 2656 5.16 6.58 335 335 265 245 340 275 250 275 250 3505 4.35 5.54 395 395 315 290 405 325 295 325 295 415
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Section factor Hr/ATable 1.8 B Profile Box
Structural tees L......~C_J 3 sides ‘ 4 sides 3 sides 4 sides
from universal columns D~ ~/~/////~ ~f//~f/// •W//~Y///~ 7//////4~
— ~~-—-1 r-—-~ ill I I I ISerial Mass Width Depth Thickness Area ilL I I I I Isize per of of of U L U L__!__J L___1 L_I_J
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mm kg mm mm mm cm2 m1 m1 m1 m’ rn-1 rn~
406x 178 118 395.0 190.5 18.5 149.9 50 75 75 50 50 80
368x 178 101 374.4 187.3 16.8 129.0 55 85 85 60 60 8589 372.1 184.2 14.5 112.9 65 95 95 65 65 10077 370.2 181.0 12.6 97.6 75 110 110 75 75 11565 368.3 177.8 10.7 82.5 85 130 130 90 90 130
305x 152 79 310.6 163.6 15.7 100.6 60 90 95 65 65 9569 308.7 160.3 13.8 87.3 70 105 105 70 70 11059 306.8 157.2 11.9 74.9 80 120 120 85 85 12549 304.8 153.9 9.9 61.6 95 145 145 100 100 150
254x 127 66 261.0 138.2 15.6 84.5 65 90 95 65 65 9554 258.3 133.4 13.0 68.3 75 110 115 75 75 11545 255.9 130.2 10.5 57.0 90 130 135 90 90 13537 254.0 127.0 8.6 46.4 105 160 160 110 110 165
203x 102 43 208.8 111.1 13.0 55.0 75 110 115 80 80 11536 206.2 108.0 10.3 45.5 90 135 135 95 95 14030 205.2 104.8 9.3 37.9 105 160 160 110 110 16526 203.9 103.1 8.0 33.2 120 180 180 125 125 18523 203.2 101.6 7.3 29.4 135 200 205 140 140 205
152x 76 19 154.4 80.9 8.1 23.7 130 195 195 135 135 20015 152.9 78.7 6.6 19.1 160 235 240 160 160 24012 152.4 76.2 6.1 14.9 200 300 305 205 205 310
Section_factor_Ha/ATable 1.9 Profile Box
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44x44 4.11 44.4 44.4 6.4 5.24 255 325 340 255 3403.14 44.4 44.4 4.8 4.00 335 430 445 335 445
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Rectangular Sectionhollow sections D factor Hp/A
(square) 3 sides 4 sides
~ F~
[ 1~Designation Mass Area ‘I
ofper :~Size Thickness metre sectionDXD t
~ mm mm kg cm2 m1 m~
Table 1.11continued Section
factor Hp/A
3 sides 4 sides
Designation Mass Area
ofSize Thickness metre section Jper
DXD t
mm mm kg cm2 m’40X40
50X50
60X60
70X70
80x80
90x90
bOx 100
120x 120
140x 140
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10.05.06.38.0
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10.012.5
2.923.453.664.465.403.714.394.665.726.978.495.345.676.978.54
10.512.86.287.46
10.112.515.37.228.59
11.714.417.89.72
13.316.420.412.014.818.422.927.918.022.327.934.241.621.126.332.940.449.5
3.724.404.665.686.884.725.605.947.288.88
10.86.807.228.88
10.913.316.38.009.50
12.915.919.59.20
10.914.918.422.712.416.920.925.915.318.923.429.135.522.928.535.543.553.026.933.541.951.563.0
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150x 150
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34.243.053.065.281.4
30.538.248.059.373.091.5
48.160.575.092.6117
57.973.190.7112142
85.7106132167
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28.936.045.155.568.084.5
30.938.548.359.573.043.654.767.583.0104
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Table 1.13 Castellated Sections
914x419 1371x419 388343
914 x 305 1371 x 305 289253224201
838x292 1257x292 226194176
762x 267 1143 xx 267 197173147
686x254 1029x254 170152140125
610 x 305 915 x 305 238179149
610x229 915x229 140125113101
533 x 210 800 x 210
457 x 191 686 x 191
457 x 152 686 x 152 8274676052
406 x 178 609 x 178 74676054
406 x 140 609 x 140 4639
356x 171 534x 171 67575145
356x127 534x127 3933
305x 165 458x 165 544640
305x 127 458x 127 484237.
305 x 102 458 x 102 332825
254 x 146 381 x 146 433731
254 x 102 381 x 102 282522
356 x 406 546 x 406 634551467393340287235
356 x 368 534 x 368 202177153129
305 x 305 458 x 305 28324019815813711897
254x 254 381 x254 1671321078973
203 x 203 305 x 203 8671605246
152 x 152 228 x 152 373023
254x203 381x203 81.85254x114 381x114 37.20203 x 152 305 x 152 52.09203 x 102 305 x 102 25.33178 x 102 267 x 102 21.54152 x 127 228 x 127 37.20152x 89 228x 89 17.09152x 76 228x 76 17.86127x114 191x114 29.76127x114 191x114 26.79127 x 76 191 x 76 16.37127 x 76 191 x 76 13.36114x114 171x114 26.79102x102 153x102 23.0789x 89 134x 89 19.3576x 76 114x 76 12.65
432 x 102 648 x 102 65.54381 x 102 572 x 102 55.10305 x 102 458 x 102 46.18305 x 89 458 x 89 41.69254 x 89 381 x 89 35.74254 x 76 381 x 76 28.29229x 89 344x 89 32.76229 x 76 344 x 76 26.06203 x 89 305 x 89 29.78203 x 76 305 x 76 23.82178x 89 267x 89 26.81178x 76 267x 76 20.84152x 89 228x 89 23.84152x 76 228x 76 17.88127x 64 l9lx 64 14.90102x 51 153x 51 10.4276x 38 114x 38 6.70
Castellated Universal Beams Castellated Universal Columns Castellated Joists Castellated Channels
Serial size Mass Serial size Mass Serial size Mass Serial size Massper per per per
metre metre metre metreOriginal Castellated Original Castellated Original Castellated Original Castellated
mm mm kg mm mm kg mm mm kg mm mm kg
1221(1910192829889827467
203 x 133 305.x 133 3025
26