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

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*.str file developed by the pre processor in Figure B.1 for a 180UB16.1 beam exposed to an ISO 834 fire on 4 sides. NMAT 1 ELEMENTS SOLID 27 NG 2 NVOID 0 NODES NODE 1 0 0 NODE 2 0 0.0085 NODE 3 0 0.0171 NODE 4 0 0.0256 NODE 5 0 0.0342 NODE 6 0 0.0427 NODE 7 0 0.0472 NODE 8 0 0.0558 NODE 9 0 0.0643 NODE 10 0 0.0729 NODE 11 0 0.0814 NODE 12 0 0.09 NODE 13 0.007 0 NODE 14 0.007 0.0085 NODE 15 0.007 0.0171 NODE 16 0.007 0.0256 NODE 17 0.007 0.0342 NODE 18 0.007 0.0427 NODE 19 0.007 0.0472 NODE 20 0.007 0.0558 NODE 21 0.007 0.0643 NODE 22 0.007 0.0729 NODE 23 0.007 0.0814 NODE 24 0.007 0.09 NODE 25 0.0388 0.0427 NODE 26 0.0388 0.0472 NODE 27 0.0706 0.0427 NODE 28 0.0706 0.0472 NODE 29 0.1024 0.0427 NODE 30 0.1024 0.0472 NODE 31 0.1342 0.0427 NODE 32 0.1342 0.0472 NODE 33 0.166 0 NODE 34 0.166 0.0085 NODE 35 0.166 0.0171 NODE 36 0.166 0.0256 NODE 37 0.166 0.0342 NODE 38 0.166 0.0427 NODE 39 0.166 0.0472 NODE 40 0.166 0.0558 NODE 41 0.166 0.0643 NODE 42 0.166 0.0729 NODE 43 0.166 0.0814 NODE 44 0.166 0.09 NODE 45 0.173 0 NODE 46 0.173 0.0085 NODE 47 0.173 0.0171 NODE 48 0.173 0.0256 NODE 49 0.173 0.0342 157
NODE 50 0.173 0.0427 NODE 51 0.173 0.0472 NODE 52 0.173 0.0558 NODE 53 0.173 0.0643 NODE 54 0.173 0.0729 NODE 55 0.173 0.0814 NODE 56 0.173 0.09 NODELINE 0.0 0.0 YC ZC 0.0 0.0 FIXATIONS NOD<strong>OF</strong>SOLID ELEM 1 1 2 14 13 1 ELEM 2 2 3 15 14 1 ELEM 3 3 4 16 15 1 ELEM 4 4 5 17 16 1 ELEM 5 5 6 18 17 1 ELEM 6 6 7 19 18 1 ELEM 7 7 8 20 19 1 ELEM 8 8 9 21 20 1 ELEM 9 9 10 22 21 1 ELEM 10 10 11 23 22 1 ELEM 11 11 12 24 23 1 ELEM 12 18 19 26 25 1 ELEM 13 25 26 28 27 1 ELEM 14 27 28 30 29 1 ELEM 15 29 30 32 31 1 ELEM 16 31 32 39 38 1 ELEM 17 33 34 46 45 1 ELEM 18 34 35 47 46 1 ELEM 19 35 36 48 47 1 ELEM 20 36 37 49 48 1 ELEM 21 37 38 50 49 1 ELEM 22 38 39 51 50 1 ELEM 23 39 40 52 51 1 ELEM 24 40 41 53 52 1 ELEM 25 41 42 54 53 1 ELEM 26 42 43 55 54 1 ELEM 27 43 44 56 55 1 FRONTIER 1 FISO FISO FISO 2 FISO FISO 3 FISO FISO 4 FISO FISO 5 FISO FISO 6 FISO 7 FISO FISO 8 FISO FISO 9 FISO FISO 10 FISO FISO 11 FISO FISO FISO 12 FISO FISO 13 FISO FISO 14 FISO FISO 15 FISO FISO 16 FISO FISO 17 FISO FISO FISO 18 FISO FISO 19 FISO FISO 20 FISO FISO 21 FISO FISO 158
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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
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FIGURE 5.11: TEMPERATURE CONTOUR LI
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designed with confidence. Full scal
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eams and struts when subjected to a
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Gilvery and Dexter, (1997), prepare
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with conditions specified to ensure
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1.6 BACKGROUND INFORMATION: 1.6.1 F
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experienced in fire situations, but
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The thermal conductivity is not imp
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[ The heated perimeter of the steel
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The advantages of board systems are
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The values for the thermal properti
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insulation has on the rise of the s
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( T − T ) k H p f s ∆t ∆T
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spreadsheet method very closely, wi
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protection, and for user defined fi
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This equation originates from the y
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1400 1200 1000 800 600 400 200 0 0.
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time. The value of the wall lining
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The Eurocode does not define a meth
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f f y y ( T ) (20) = 1.0 0 < T < 21
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temperature is chosen because it is
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The variation of yield stress data
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15 m -1 < H p /A < 275 m -1 in NZS
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= H p A (m -1 ) 7.85 The cons
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Connections: NZS 3404 requires that
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4 CALCULATION OF STEEL TEMPERATURES
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4.1.2 Analysis Between Methods of T
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Figure 4.2 shows the variation of t
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Minimum temperatures Maximum temper
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For all three sizes of beam, the sp
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Temperature ( o C) 1200 1000 800 60
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The ECCS equation has a time period
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4.3.1 Results from simulations with
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From Figure 4.5 a-c, the formula ra
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Temperature ( o C) 1000 800 600 400
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average temperature of the beam, be
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Temperature ( o C) 1400 1200 1000 8
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significantly decreased from a cool
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Since both programmes use the same
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Therefore, the ECCS equations provi
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5 CALCULATION OF STEEL TEMPERATURES
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calculations made by the spreadshee
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susceptible to heating, heat up mor
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Figure 5.3 a-c show the results fro
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7850*600*10500 > 2*775*1100*(1869*2
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As can be seen from Figure 5.4 a-c,
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310 UB 40.4 beam H p /A = 241 m -1
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The SAFIR results fit between the t
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constant specific heat being used i
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From Figure 5.7 a-c, it appears tha
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800 Temperature ( o C) 600 400 200
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To examine the limits of the thickn
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1000 Temperature ( o C) 800 600 400
Page 122 and 123: Thermal conductivity, k i = 0.19 W/
Page 124 and 125: 1000 Temperature ( o C) 800 600 400
Page 126 and 127: the slab except to reduce the secti
Page 128 and 129: Figure 5.14 shows the correlation b
Page 130 and 131: 5.8 CONCLUSIONS: The thermal behavi
Page 132 and 133: 6 COMPARISON OF METHODS USING OTHER
Page 134 and 135: Temperature ( o C) 1200 1000 800 60
Page 136 and 137: 6.2.4 Results for protected steel:
Page 138 and 139: Figures 6.2 b shows the comparison
Page 140 and 141: Figure 6.3 a shows that the average
Page 142 and 143: The fire that the test beams were e
Page 144 and 145: 7 ADDITIONAL MATERIAL IN EUROCODE 3
Page 146 and 147: For thermal analysis in Eurocode 3,
Page 148 and 149: To determine the performance of a s
Page 150 and 151: The plastic neutral axis is located
Page 152 and 153: It is therefore recommended that th
Page 154 and 155: These methods may be used to provid
Page 156: Eurocode has a large annex with gui
Page 159 and 160: 8.3 CHANGES TO NZS 3404: The follow
Page 161 and 162: H v height of the ventilation (m) I
Page 163 and 164: EC3, 1995. Eurocode 3: Design of St
Page 165 and 166: Temperature Conditions. National Re
Page 168 and 169: APPENDIX A - SPREADSHEET METHOD: Be
Page 170 and 171: APPENDIX B - SAFIR: In Figure B.2 i
Page 174 and 175: 22 FISO 23 FISO FISO 24 FISO FISO 2
Page 176: APPENDIX C - FIRECALC Below in Figu
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