Reuse of Steel Cladding Systems Markus Kuhnhenne London, 08.10.2019
Reuse of Steel Cladding Systems
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Microsoft PowerPoint - 5 Kuhnhenne_London_20191008_final wide.pptxLondon, 08.10.2019
Introduction
Introduction
European Commission - Framework / Macro level
European Innovation Partnership on Raw Materials
"The supply and affordability of raw materials are of strategic importance for the future of the European economy and society. With the European Innovation Partnership, the raw materials community has taken important steps towards increased security of supply and a more circular economy. Today, we made the case for the need to support investment in the field of raw materials, in particular for start-ups and SMEs trying to optimise their resource use."
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.20195
European Building Stock Data
Renovation market
• The renovation market overtook the market for new buildings since 2010
OPENEXP (2016)
2005 2009 2015 New Residential Newnonresidential Renovation residential Renovation nonresidential
46 %
54 %
50 %
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.20196
EU-RFCS Project „PROGRESS“
• Project duration 36 months (1.6.2017 - 31.5.2020)
• Focus on single-storey steel buildings
• Existing and future buildings
• Design from reused elements
• Design for improved reusability
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.20198
PROGRESS
PROGRESS
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201911
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201912
PROGRESS
[ W
(( m
1970
0.80 W/(m²·K)
• ca. 9 Mio. Residential Buildings • ca. 2 Mio. Non-Residential Buildings • only 15 % with U < 0,30 W/(m²·K) • Umax = 0,24 W/(m²·K) for renovation
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201913
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201914
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201915
Reuse of liner tray profiles and over-cladding with sandwich panels
Energetic aspects
• Hybrid-Façade FEM – Model
Hybrid Solution: Existing Cassette (100 mm ; MW 035) plus Sandwich Panel (type I, 60 mm, PU 024)
Existing Solution: Cassette Profile (100 mm ; MW 035)
Steel
Reuse of liner tray profiles and over-cladding with sandwich panels
Energetic aspects
FEM – Result (temperature distribution)
8
7
6
5
4
3
2
1
0
20
19
18
17
16
15
14
13
12
11
10
9
Reuse of liner tray profiles and over-cladding with sandwich panels
Whole Building Performance – Energy saving potential, Hybrid-Facade
Definition sample hall:
• Effect of this refurbishment method on building level
Variation Cloud (10.000 variations before & after renovation) - Width: 10 ≤ B ≤ 50 m - Length: 20 ≤ L ≤ 100 m - Height: 5 ≤ H ≤ 25 m
Hall 1: A/V = 0,36 m-1
Hall 2: A/V = 0,47 m-1
Hall 3: A/V = 0,57 m-1
Hall 4: A/V = 0,70 m-1
A/V: Ratio of surface area (A) to volume (V)
Element U [W/(m²K)]
Roof light 2,50
Reuse of liner tray profiles and over-cladding with sandwich panels
Whole Building Performance – Energy saving potential, Hybrid-Facade
Renovation – Transmission Heat Transfer HT'
U = 0,81 W/(m²K) U = 0,17 W/(m²K)
• Effect of this refurbishment method on building level
After renovation: 100 mm cassette, MW 035
+ 120 mm sandwich type I, PU 024
Before renovation: 100 mm cassette, MW 035
+ 3 mm separation stripe
41 %
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201920
Reuse of Sandwich Panel Constructions
End-Of-Life of Sandwich Panels
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201921
Reuse of Sandwich Panel Constructions
End-Of-Life of Sandwich Panels
Reuse of Sandwich Panel Constructions
End-Of-Life of Sandwich Panels
• State-of-the art End of Life scenarios according to Environmental Product Declarations
Double skin steel faced sandwich panels with a core made of polyurethane
Double skin steel faced sandwich panels with a core made of mineral wool
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201923
Reuse of Sandwich Panel Constructions
Challenges for Reuse of Sandwich Panels
• Screw holes “Push through mounted fastener” are
usually used Connection to the substructure is a direct
or hidden fixation direct fixation
hidden fixation
• Outer layer is aesthetical not sufficient
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201924
Reuse of Sandwich Panel Constructions
Thermal Performance – Requirements in Germany
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
60 80 100 120 140 160 180 200 220 240 260 280 300 320
U -W
er t [
W /(m
²· K
Dämmstoffdicke [mm]
SE Typ 1 MF 044 SE Typ 3 PU 024 SE Typ 3 PU 018 DIN 4108-2, ≥ 12 °C EnEV Ref., 12 bis 19 °C EnEV Ref., ≥ 19 °C Passivhaus
EnEV San., 12 bis 19 °C EnEV San., ≥ 19 °C
SE MW 044
SE PU 024
SE PU 018
Reuse of Sandwich Panel Constructions
Airtightness
Reuse of Sandwich Panel Constructions
Over-cladding sandwich panel construction
Reuse of Sandwich Panel Constructions
Design for improved reusability
Development of innovative fixing technologies
Example: Light Steel Noise Barriers
Development of new fixation system using clamping technology instead of bolts
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201928
Design for improved reusability
Design for improved reusability
Design for improved reusability
Practical Example – SandwichCUBE
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201932
Practical Example – SandwichCUBE
Practical Example – SandwichCUBE
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201934
Practical Example – SandwichCUBE
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201935
Practical Example – SandwichCUBE
Assessment of sandwich panels after a lifetime of 14 Years
Tests according to EN 14509
• Cross panel tensile strength
• Compressive strength
• Compressive modulus
• Shear strength
• Shear modulus
• Wrinkling stress
Reuse of Steel Cladding Systems
Need for new design & maintenance concepts for improved reusability
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201937
Reuse of Steel Cladding Systems
Need for new design & maintenance concepts for improved reusability
Reuse of Steel Cladding Systems Markus Kuhnhenne
London, 08.10.2019
Introduction
Introduction
European Commission - Framework / Macro level
European Innovation Partnership on Raw Materials
"The supply and affordability of raw materials are of strategic importance for the future of the European economy and society. With the European Innovation Partnership, the raw materials community has taken important steps towards increased security of supply and a more circular economy. Today, we made the case for the need to support investment in the field of raw materials, in particular for start-ups and SMEs trying to optimise their resource use."
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.20195
European Building Stock Data
Renovation market
• The renovation market overtook the market for new buildings since 2010
OPENEXP (2016)
2005 2009 2015 New Residential Newnonresidential Renovation residential Renovation nonresidential
46 %
54 %
50 %
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.20196
EU-RFCS Project „PROGRESS“
• Project duration 36 months (1.6.2017 - 31.5.2020)
• Focus on single-storey steel buildings
• Existing and future buildings
• Design from reused elements
• Design for improved reusability
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.20198
PROGRESS
PROGRESS
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201911
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201912
PROGRESS
[ W
(( m
1970
0.80 W/(m²·K)
• ca. 9 Mio. Residential Buildings • ca. 2 Mio. Non-Residential Buildings • only 15 % with U < 0,30 W/(m²·K) • Umax = 0,24 W/(m²·K) for renovation
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201913
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201914
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201915
Reuse of liner tray profiles and over-cladding with sandwich panels
Energetic aspects
• Hybrid-Façade FEM – Model
Hybrid Solution: Existing Cassette (100 mm ; MW 035) plus Sandwich Panel (type I, 60 mm, PU 024)
Existing Solution: Cassette Profile (100 mm ; MW 035)
Steel
Reuse of liner tray profiles and over-cladding with sandwich panels
Energetic aspects
FEM – Result (temperature distribution)
8
7
6
5
4
3
2
1
0
20
19
18
17
16
15
14
13
12
11
10
9
Reuse of liner tray profiles and over-cladding with sandwich panels
Whole Building Performance – Energy saving potential, Hybrid-Facade
Definition sample hall:
• Effect of this refurbishment method on building level
Variation Cloud (10.000 variations before & after renovation) - Width: 10 ≤ B ≤ 50 m - Length: 20 ≤ L ≤ 100 m - Height: 5 ≤ H ≤ 25 m
Hall 1: A/V = 0,36 m-1
Hall 2: A/V = 0,47 m-1
Hall 3: A/V = 0,57 m-1
Hall 4: A/V = 0,70 m-1
A/V: Ratio of surface area (A) to volume (V)
Element U [W/(m²K)]
Roof light 2,50
Reuse of liner tray profiles and over-cladding with sandwich panels
Whole Building Performance – Energy saving potential, Hybrid-Facade
Renovation – Transmission Heat Transfer HT'
U = 0,81 W/(m²K) U = 0,17 W/(m²K)
• Effect of this refurbishment method on building level
After renovation: 100 mm cassette, MW 035
+ 120 mm sandwich type I, PU 024
Before renovation: 100 mm cassette, MW 035
+ 3 mm separation stripe
41 %
PROGRESS
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201920
Reuse of Sandwich Panel Constructions
End-Of-Life of Sandwich Panels
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201921
Reuse of Sandwich Panel Constructions
End-Of-Life of Sandwich Panels
Reuse of Sandwich Panel Constructions
End-Of-Life of Sandwich Panels
• State-of-the art End of Life scenarios according to Environmental Product Declarations
Double skin steel faced sandwich panels with a core made of polyurethane
Double skin steel faced sandwich panels with a core made of mineral wool
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201923
Reuse of Sandwich Panel Constructions
Challenges for Reuse of Sandwich Panels
• Screw holes “Push through mounted fastener” are
usually used Connection to the substructure is a direct
or hidden fixation direct fixation
hidden fixation
• Outer layer is aesthetical not sufficient
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201924
Reuse of Sandwich Panel Constructions
Thermal Performance – Requirements in Germany
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
60 80 100 120 140 160 180 200 220 240 260 280 300 320
U -W
er t [
W /(m
²· K
Dämmstoffdicke [mm]
SE Typ 1 MF 044 SE Typ 3 PU 024 SE Typ 3 PU 018 DIN 4108-2, ≥ 12 °C EnEV Ref., 12 bis 19 °C EnEV Ref., ≥ 19 °C Passivhaus
EnEV San., 12 bis 19 °C EnEV San., ≥ 19 °C
SE MW 044
SE PU 024
SE PU 018
Reuse of Sandwich Panel Constructions
Airtightness
Reuse of Sandwich Panel Constructions
Over-cladding sandwich panel construction
Reuse of Sandwich Panel Constructions
Design for improved reusability
Development of innovative fixing technologies
Example: Light Steel Noise Barriers
Development of new fixation system using clamping technology instead of bolts
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201928
Design for improved reusability
Design for improved reusability
Design for improved reusability
Practical Example – SandwichCUBE
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201932
Practical Example – SandwichCUBE
Practical Example – SandwichCUBE
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201934
Practical Example – SandwichCUBE
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201935
Practical Example – SandwichCUBE
Assessment of sandwich panels after a lifetime of 14 Years
Tests according to EN 14509
• Cross panel tensile strength
• Compressive strength
• Compressive modulus
• Shear strength
• Shear modulus
• Wrinkling stress
Reuse of Steel Cladding Systems
Need for new design & maintenance concepts for improved reusability
Reuse of Steel Cladding Systems | Markus Kuhnhenne | London, 08.10.201937
Reuse of Steel Cladding Systems
Need for new design & maintenance concepts for improved reusability
Reuse of Steel Cladding Systems Markus Kuhnhenne
London, 08.10.2019
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