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M BAU 2011Messe BAU 2011:Neues Denken für Nachhaltiges Bauen
AMECO Design SoftwareAMECO Design Software“Sustainable buildings made of steel”
January 2011 Matthias BraunArcelorMittalCommercial Sections
23/02/2011
Commercial Sections Technical Advisory
Life cycle assessmentM
ittal
Life cycle assessmentprinciples
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Raw materials extraction
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Product manufacturing Product usage Recycling,
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Product life cycle
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production phase use phase end of life
Steel life cycle assessmentSteel life cycle assessment
• LCI of steel product• Environmental impactEnvironmental impact• Credit method
– Basic principle: An environmental value is allocated to scrap.Basic principle: An environmental value is allocated to scrap. – Why? scrap recycling avoids primary production of steel, the
environmental impact avoided is the difference between primary and secondary impacts
Steel life cycle for hot rolled profiles based on data 2010
Use phase
End of LifeRecovery Rate Beam 99%
~40%
1000 kg output
~60%input
profilep
990 kg scrapNet value: 990 – 849 = 140 kg
European Average Primary Steel P d ti
•CO2 credit : 1600 CO2/t. * 140 kg= 227 kg of CO2
Total Global Warming Potential
input849 kgscrap
Production
1143 kg CO2/ton
Total Global Warming Potential
916 kg CO2eq/t. of Sections
Environmental Product DeclarationEnvironmental Product Declaration
• To meet future European regulation of CE MarkEPD f St t l St l• EPD for Structural Steel: Sections and Plates according to ISO 14025g
EPD - LCA according to ISO 14040 ff.EPD LCA according to ISO 14040 ff.Structural Steel: Sections and Plates
Unit per kg Production End-of-Life Total
Primary energy, non-renewable [MJ] 19,48 -7,70 11,78
Primary energy, renewable [MJ] 0,65 -0,08 0,57-------------------
12,35
Global Warming Potential (GWP 100 years)
[kg CO2-Eq.] 1,68 -0,88 0,80
Ozone Depletion Potential (ODP) [kg R11-Eq.] 3,19E-08 1,04E-08 4,23E-08
Acidification Potential (AP) [kg SO2-Eq.] 3,47E-03 -1,68E-03 1,79E-03
Eutrophication Potential (EP) [kg PO4 3-Eq.] 2,89E-04 -1,31E-04 1,58E-04
Photochemical Ozone Creation Potential (POCP)
[kg C2H4-Eq.] 7,55E-04 -4,57E-04 2,98E-04
Validated by:
Calculation examplesCalculation examplesSoftware AMECO
Composite / Concrete BeamsComposite / Concrete Beams
Live Load, Cat. C – 5.00kN/m2,Additional Dead Load – 1.00kN/m2
Beam Distance a = 2.40mS L 14 40L = 14.4m
a = 2.4m
Span Leff = 14.40m
Composite Beam: Grades S235 / S460Composite Slab: C30/37, dSlab = 15cm
Cofraplus 60 tN = 0 75mmCofraplus 60, tN 0.75mmDead Load slab: 2.87kN/m2
Concrete Beam: C30/37Dead Load slab: 3.00kN/m2
Composite Beams
S235 - Composite Beam: IPE A 500, g = 79.4kg/m102 Shear Studs per Beam: ¾’’ (= 19mm) l = 100mm102 Shear Studs per Beam: ¾ (= 19mm), lStud = 100mm
S460 - Composite Beam: IPE 360, g = 57.1kg/m140 Shear Studs per Beam: ¾’’ (= 19mm), lStud = 100mm
Concrete T-Beam
C30/37 – Concrete Composite T-BeamDesign Example taken fromDesign Example taken from “Beispiel zur Bemessung nach DIN 1045-1, Band 1: Hochbau”-> see additional file
Life Cycle Assessment of beamsLife Cycle Assessment of beams
L = 14.4m, a = 2.4m
100%
8090
100
63%
100%
708090
100 85%
61%
100%
708090
100
19% 14%3040506070
63%
45%
3040506070
3040506070
14%
0102030
Steel beam S235 Steel beam S460 Concrete beam0
1020
Steel beam S235 Steel beam S460 Concrete beam0
1020
Steel beam S235 Steel beam S460 Concrete beam
Weight Global Warming Potential
Primary Energy Consumption
Steel / Concrete ColumnsSteel / Concrete Columns
Load assumptions -> see beamspInterior Column Distance x = 5.00mColumn Distance y = 14.40mB kli l th 3 50m Buckling length sk = 3.50m5 Floors above columnLoad influence area per floor = 72m2s k
= 3.
5m
Steel Columns: Grades S235 / S460Concrete Columns: C35/45
Steel ColumnsSteel ColumnsS235 – Steel Column: NEd = 5*72m2 * (1.35*4.19 + 1.5*5)kN/m2
S235 Steel Column: N = 4739kNS235 – Steel Column: NEd = 4739kN
-> HD 400 x 187, g = 187kg/m, h x b = 368mm x 391mm
S460 – Steel Column: NEd = 5*72m2 * (1.35*4.10 + 1.5*5)kN/m2
S460 – Steel Column: NEd = 4694kN
-> HD 320 x 97.6, g = 97.6kg/m, h x b = 310mm x 300mm
Concrete ColumnConcrete ColumnConcrete Column: NEd = 5*72m2 * (1.35*5.63 + 1.5*5)kN/m2
N = 5434kNNEd = 5434kNColumn C35/45, h x b = 0.50m x 0.50m
Reinforcement: BSt 500Longitudinal: 24 20mmMin length of overlap = 60cmMin. length of overlap 60cm
Total Quantity of Stirrups: 22 8mmLength of one stirrup = 184cm
Weight of reinforcement: 73.9 kg/mg g
Life Cycle Assessment of columns
s k=
3.5m
100%
708090
10083% 100%
708090
100
110%100%
80
100
120
27%14%30
40506070
43%
3040506070
57%
40
60
80
14%
0102030
Steel S235 Steel S460 Concrete0
1020
Steel S235 Steel S460 Concrete0
20
Steel S235 Steel S460 Concrete
Weight Global Warming Potential
Primary Energy Consumption
Optimized steel solutionsHi h t th t lHigh strength steel
The Federation tower in MoscowUp to 30% saving CO emission for construction
The Colgate Center, Jersey CityCO2 emission saving of about 17%Up to 30% saving CO2 emission for construction
thanks HISTAR® steelsCO2 emission saving of about 17%
thanks A913-gr65 steel (S460)instead of gr50 (S355) in columns
Sustainability Optimized steel solutions - High strength steel Design tools
Steel - Trend setting and long lastingCrescent Hotel, Baku – Azerbaijan, 2010+
Tour Eiffel, F, 1889 Guggenheim Museum, Bilbao, ES, 1997
Iron Bridge, Coalbrookdale, UK, 1779
Millau Viaduct, F, 2004
www arcelormittal com/sectionswww.arcelormittal.com/sections
Thank you for your attention!Thank you for your attention!
Emirate Towers DubaiEmirate Towers - Dubai
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