FIRE DESIGN OF STEEL MEMBERS - Civil and Natural Resources ...

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The Eurocode 3 Document <strong>and</strong> the British Steel code do not have recommendations on the fire resistance of beam web penetrations. 49
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Fire Design of Steel Members K R Le
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ABSTRACT: The New Zealand Steel Cod
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TABLE OF CONTENTS: ABSTRACT:.......
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5.4 RESULTS FOR FOUR SIDED EXPOSURE
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LIST OF FIGURES: FIGURE 1.1: VARIAT
Page 14: FIGURE 5.11: TEMPERATURE CONTOUR LI
Page 17 and 18: designed with confidence. Full scal
Page 19 and 20: eams and struts when subjected to a
Page 21 and 22: Gilvery and Dexter, (1997), prepare
Page 23 and 24: with conditions specified to ensure
Page 25 and 26: 1.6 BACKGROUND INFORMATION: 1.6.1 F
Page 27 and 28: experienced in fire situations, but
Page 29 and 30: The thermal conductivity is not imp
Page 31 and 32: [ The heated perimeter of the steel
Page 33 and 34: The advantages of board systems are
Page 35 and 36: The values for the thermal properti
Page 37 and 38: insulation has on the rise of the s
Page 39 and 40: ( T − T ) k H p f s ∆t ∆T
Page 41 and 42: spreadsheet method very closely, wi
Page 43 and 44: protection, and for user defined fi
Page 45 and 46: This equation originates from the y
Page 47 and 48: 1400 1200 1000 800 600 400 200 0 0.
Page 49 and 50: time. The value of the wall lining
Page 51 and 52: The Eurocode does not define a meth
Page 53 and 54: f f y y ( T ) (20) = 1.0 0 < T < 21
Page 55 and 56: temperature is chosen because it is
Page 57 and 58: The variation of yield stress data
Page 59 and 60: 15 m -1 < H p /A < 275 m -1 in NZS
Page 61 and 62: = H p A (m -1 ) 7.85 The cons
Page 63: Connections: NZS 3404 requires that
Page 67 and 68: Three beam sizes have been consider
Page 69 and 70: 4.2 RESULTS FOR FOUR SIDED EXPOSURE
Page 71 and 72: temperature is 360 °C. This result
Page 73 and 74: 1000 Temperature ( o C) 800 600 400
Page 75 and 76: the test. This formula has a limit
Page 77 and 78: Equation 4.1 from NZS 3404 is much
Page 79 and 80: Concrete slab Steel UB beam Figure
Page 81 and 82: The results found from the SAFIR si
Page 83 and 84: 1000 800 Temperature ( o C) 600 400
Page 85 and 86: From Figure 4.11 a-c, the spreadshe
Page 87 and 88: The SAFIR curves are the result of
Page 89 and 90: The temperature range that equation
Page 91 and 92: Figure 4.13 shows that using the sa
Page 93 and 94: When comparing Firecalc and the Spr
Page 95 and 96: three sided exposure with a slab pr
Page 97 and 98: unprotected steel. The thermal prop
Page 99 and 100: than elsewhere, and more insulation
Page 101 and 102: Temp ( o C) 800 700 600 500 400 300
Page 103 and 104: thicker beams have not yet reached
Page 107 and 108: Mandolite by Firepro Safety Ltd Spe
Page 111 and 112: above the SAFIR curve. The maximum
Page 113 and 114: Temperature ( o C) 1200 1000 800 60
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5.4.1 Steel Beams with Box Protecti
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The spreadsheet method gives temper
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The time-temperature curve of the s
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From Figure 5.10 a-c, the ECCS equa
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steel interface even though the tem
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The spreadsheet results are from ca
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1000 Temperature ( o C) 800 600 400
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The properties of the protection ap
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experimental tests. The formula giv
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6.2.2 Assumptions: When using the E
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This time-temperature curve shows t
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Protected steel exposed to the Euro
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6.3.1 Unprotected Steel: The experi
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the lower flange and web tend to th
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The fire data entered into the SAFI
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strength design actions are modifie
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carried out. Here the design action
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Alternatively, for a conservative e
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factor for lateral torsional buckli
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The variation of the mechanical pro
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This Annex makes a distinction betw
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8 CONCLUSIONS AND RECOMMENDATIONS:
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9 NOMENCLATURE: When equations are
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10 REFERENCES: Anchor, R.D., Malhot
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Harmathy, T.Z.,1993. Fire Design an
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Thomas. G.C. 1997. Fire Resistance
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Below is an example of a spreadshee
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SAFIR INPUT *.dat file developed by
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NODE 50 0.173 0.0427 NODE 51 0.173
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DIAMOND OUTPUT From the Diamond out
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