The Steel Workshop S16-2009: What's New? - CISC-ICCA

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Clause 27 Seismic designBuckling restrained bracesGenerally patented systemsOften made of a steel plate inside a steel tube (round or square)stuffed with grout.Steel plate extends beyond steel tubeConnection made to steel plate not the tube.Tube contains groutGrout and tube restrain buckling of the plate under compressiveforces.Plate tends to buckle like a series of sinusoidal waves along therestrained lengthS16 -2009What’s New?
Clause 27 Seismic design27.8 Type D (ductile) buckling restrained braced frames,R d = 4.0, R o = 1.2Provides R d = 4.0 and R o = 1.2Uses a new brace that restrains buckling to raise compressiveresistance to level of the tensile resistanceKnee and K-braced frames excludedHeight of BRBF = 40 m unless stable inelastic responseNo height restriction whenIF S 0.2) 0. 35Eaa ( S16 -2009What’s New?
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1: Scope and application• Scope:
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1: Scope and application• Inspect
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4: Structural documents• Drawings
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5: Material - Standards and identif
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6: Design requirementsSeveral new r
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6: Design requirementsWind loads:On
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13.6 Bending - Laterally unsupporte
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Position of the load with respect t
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13.6 (e) Flexure of monosymmetric s
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13.6 (e) Flexure of monosymmetric s
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13.4 Shear13.4.1.1 Elastic analysis
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13.2 Tension & 13.11 Block ShearUlt
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13.11 Block shearBlock shearApplies
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13.11 Block shear 10Block shearConn
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13.3 Axial compressionCompression M
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13.3 Axial compressionModified dete
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13.3.3 Single-angle members in comp
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13.3.3.2 Individual members and pla
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13.3.3.3 Box and space trussesTo de
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13.3.3.4 Other membersWhen1 - Angle
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13.3.5 Members in compression subje
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25 Column bases and anchor rodsNew
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15 TrussesAnalysis MethodsSplices1
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16 Open-web steel joists16.5.3 Veri
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16 Open-web steel joists16.5.16 Wel
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17 Composite beams, trusses, and jo
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18 Composite columns 2018.3 Partial
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20 Plate wallsGeneralClauses have b
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20 Plate walls20.5 Limits on column
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20 Plate walls20.7 & 20.8 Lateral s
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20 Plate wallsType D (ductile) plat
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20 Plate walls27.9.2.3 Perforated i
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20 Plate walls27.9.3 BeamsClass 1 a
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20 Plate walls27.9.7 Protected zone
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13.12 Bolts and local connection re
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Page 84 and 85: 13.14 Welds and high-strength bolts
Page 86 and 87: 21.8.1. Fillers in bolted connectio
Page 88 and 89: 22.2.2 Use of pretensioned high-str
Page 90 and 91: Annex L Design to prevent brittle f
Page 98 and 99: Annex K Structural design for fire
Page 118 and 119: Clause 27 Seismic designClause 27
Page 120 and 121: Clause 27 Seismic design27.1.2 Capa
Page 122 and 123: Clause 27 Seismic design27.1.7 Prob
Page 124 and 125: Clause 27 Seismic design27.1.9 Prot
Page 126 and 127: Clause 27 Seismic design 4027.2.8 P
Page 128 and 129: Clause 27 Seismic design27.6 Type L
Page 130 and 131: Clause 27 Seismic design27.7 Type D
Page 134 and 135: Clause 27 Seismic design27.8.3 (BRB
Page 136 and 137: Clause 27 Seismic design27.8.4 (BRB
Page 138 and 139: Clause 27 Seismic design27.11 Conve
Page 140 and 141: Clause 27 Seismic design27.11 Conve
Page 142 and 143: AcknowledgementsMany thanks go toMi
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The Steel Workshop S16-2009: What's New? - CISC-ICCA

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