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

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FIRE DESIGN OF STEEL MEMBERS A report submitted in partial fulfilment of the requirements for the degree of Master of Fire Engineering at the University of Canterbury, Christchurch, New Zealand. By Kathryn R. Lewis Supervised by Assoc. Prof. Andrew H. Buchanan February 2000
Page 1: Fire Design of Steel Members K R Le
Page 6: ACKNOWLEDGMENTS: Throughout my time
Page 9 and 10: 3.1.1 Determination of Period of St
Page 11 and 12: 8.4 FURTHER RESEARCH: .............
Page 13 and 14: FIGURE 4.9: LOCATION OF MAXIMUM AND
Page 16 and 17: 1 INTRODUCTION: 1.1 OBJECTIVES: The
Page 18 and 19: as well with the experimental data.
Page 20 and 21: and that the effect of slab-beam in
Page 22 and 23: Results from experimental tests sho
Page 24 and 25: 1.5.2 AS 4100:1990 The Australian S
Page 26 and 27: place when higher temperature ‘po
Page 28 and 29: Sp. Heat (J/kg K) 2000 1600 1200 80
Page 30 and 31: where the temperature of the steel,
Page 32 and 33: 1.6.4 Methods of steel protection:
Page 34 and 35: 2 FIRES AND THERMAL ANALYSIS COMPUT
Page 36 and 37: ρ s is the density of steel (kg/m
Page 38 and 39: If the above equation is true then
Page 40 and 41: ∆T s ki = dics p s H p A
Page 42 and 43: capabilities has been limited to th
Page 44 and 45: esponse times of sprinklers or smok
Page 46 and 47: can be compared to other building p
Page 48 and 49: t d 0.00013et = A v H v A t w
Page 50 and 51: 3 FIRE SECTION OF THE STEEL CODES:
Page 52 and 53:
elasticity with temperatures as giv
Page 54 and 55:
adjust for this underestimate of st
Page 56 and 57:
Figure 3.4: Stress strain curves wi
Page 58 and 59:
1 T s, cr = 39.19ln −1 + 482 3.
Page 60 and 61:
can be obtained from either a singl
Page 62 and 63:
e) The conditions of support are th
Page 64:
The Eurocode 3 Document and the Bri
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 105 and 106:
1000 Temperature ( o C) 800 600 400
Page 107 and 108:
Mandolite by Firepro Safety Ltd Spe
Page 109 and 110:
1200 Temperature ( o C) 1000 800 60
Page 111 and 112:
above the SAFIR curve. The maximum
Page 113 and 114:
Temperature ( o C) 1200 1000 800 60
Page 115 and 116:
5.4.1 Steel Beams with Box Protecti
Page 117 and 118:
The spreadsheet method gives temper
Page 119 and 120:
The time-temperature curve of the s
Page 121 and 122:
From Figure 5.10 a-c, the ECCS equa
Page 123 and 124:
steel interface even though the tem
Page 125 and 126:
The spreadsheet results are from ca
Page 127 and 128:
1000 Temperature ( o C) 800 600 400
Page 129 and 130:
The properties of the protection ap
Page 131 and 132:
experimental tests. The formula giv
Page 133 and 134:
6.2.2 Assumptions: When using the E
Page 135 and 136:
This time-temperature curve shows t
Page 137 and 138:
Protected steel exposed to the Euro
Page 139 and 140:
6.3.1 Unprotected Steel: The experi
Page 141 and 142:
the lower flange and web tend to th
Page 143 and 144:
The fire data entered into the SAFI
Page 145 and 146:
strength design actions are modifie
Page 147 and 148:
carried out. Here the design action
Page 149 and 150:
Alternatively, for a conservative e
Page 151 and 152:
factor for lateral torsional buckli
Page 153 and 154:
The variation of the mechanical pro
Page 155 and 156:
This Annex makes a distinction betw
Page 158 and 159:
8 CONCLUSIONS AND RECOMMENDATIONS:
Page 160 and 161:
9 NOMENCLATURE: When equations are
Page 162 and 163:
10 REFERENCES: Anchor, R.D., Malhot
Page 164 and 165:
Harmathy, T.Z.,1993. Fire Design an
Page 166:
Thomas. G.C. 1997. Fire Resistance
Page 169 and 170:
Below is an example of a spreadshee
Page 171 and 172:
SAFIR INPUT *.dat file developed by
Page 173 and 174:
NODE 50 0.173 0.0427 NODE 51 0.173
Page 175 and 176:
DIAMOND OUTPUT From the Diamond out
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