STAINLESS STEEL IN FIRE (SSIF) - Steel-stainless.org

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Table 3.1Load-bearing fire test specimens with predicted temperature distributionsTest Material Profiles1- Nested tubes with fireprotection (injected mineralwool)EN 1.4301and mineralwool 30kg/m 3RHS 300 x 300 x 10 &RHS 200 x 200 x 82- Column section in corner,Siporex 1) wallEN 1.4301 RHS 300 x 300 x 10Siporex 1) wall (150 mmthick)3- Column exposed to fire fromone sideEN 1.4301 RHS 200 x 100 x 64- Column of two parts exposedto fire from one sideEN 1.4301RHS 150 x 100 x 6 &RHS 20 x 100 x 21)Siporex is lightweight autoclaved aerated concrete which is completely cured, inert and stable form of calciumsilicate hydrate. It is a structural material, approximately one quarter the weight of conventional concrete,composed of minute calls which give the material light weight and high thermal insulation properties. It is availableas blocks and pre-cast reinforced units, i.e. floors, roofs, walls and lintels.16
ExposedMid-depth ofinsulationInnerprofilesteelCentre-pointFigure 3.1Predicted temperature rise for the nested column conceptFigure 3.2Load-bearing test specimens:Left: Nested tube prior to testing, Right: Corner column during testNested tubesThe temperature at mid height of the furnace averaged 973°C after 60 minutes in the standard fire. Inthe middle of the outer tube (RHS 300x300x10), the mean value of measured temperatures was 925°Cand in the middle of the inner tube (RHS 200x200x8), the mean value of measured temperatures was414 °C. This means that the inner tube had about 60% of its capacity left according to EN 1993-1-2.Column section in the cornerThe temperature differences between the exposed and unexposed sides were remarkable. The maximumtemperature in the exposed corner (mid height of the column) was 878°C and in the unexposed corner(mid height of the column) was 466°C after 60 minutes standard fire. To utilise the low temperatures,the connection between the column and wall should be ensured.17
Page 1 and 2: Research Programme of the Research
Page 3 and 4: CONTENTSPage No.ABSTRACT 5FINAL SUM
Page 5: ABSTRACTThe relatively sparse body
Page 9: 8. WP7: Design aids and softwareRat
Page 12 and 13: 1.2Stiffness E( ) retention / E(20
Page 15: 3 WP1: FIRE RESISTANT STRUCTURES AN
Page 20 and 21: system thus achieved a 60 minute fi
Page 22 and 23: than the carbon steel columns; the
Page 24 and 25: For case 1 (pinned ends), the stain
Page 26 and 27: 10 68.5 10 61.5θg2= 20°C; α = 9
Page 28 and 29: of part of the cross-section being
Page 30 and 31: Load testing:1000 kN PressEnd plate
Page 32 and 33: Table 4.3 shows failure times, fire
Page 34 and 35: 4.3.3 Design method for composite c
Page 36 and 37: 4.3.5 Design method for composite b
Page 38 and 39: 4.3.6 Comparison between stainless
Page 41 and 42: 5 WP3: CLASS 4 CROSS SECTIONS IN FI
Page 43 and 44: FWater cooled steelload equipmentSu
Page 45 and 46: Table 5.4 Comparison of strength re
Page 47 and 48: 5.3.3 Development of design guidanc
Page 49 and 50: 6 WP4: PROPERTIES AT ELEVATEDTEMPER
Page 51 and 52: Table 6.3Test programme for transie
Page 53 and 54: The following procedure used to eva
Page 55: Table 6.4Material reduction factors
Page 58 and 59: T= 100 °C T=200°CT= 300 °C T=400
Page 60 and 61: Grade 1.4318: Welded (W) v.s. Base
Page 62 and 63: Figure 7.5Connection design for bol
Page 64 and 65: Table 7.2Detailed results of shear
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dilatation caused by heating may ca
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8 WP6: PARAMETRIC FIRE DESIGNDetail
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Table 8.1Cross-sectionTemperature f
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analyses (Figure 8.2). The differen
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calculated according to EN 1993-1-4
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The following observations were not
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9 WP7: DESIGN AIDS AND SOFTWARE9.1
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9.3 Design of stainless steel beams
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Figure 9.4Column buckling tests at
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The main assumptions made by the so
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Figure 9.7Fire design software: fir
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11 FINAL WORK PACKAGE REPORTSAll de
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12.2 Dissemination of project resul
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13 CONCLUSIONSThis report summarise
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Figure 6.3 EN 1.4541 steel stress-s
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Table 8.5 Buckling resistance at ro
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[22] ECSC Final Report, Development
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Table A.4Values of parameters L θ
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Table B.1Experimental data on stain
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EUROPEAN COMMISSIONRESEARCH DIRECTO
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