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

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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!

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