ETFE – Trend or Resilient Technology Edward M Peck, AIA, LEED AP Vice President I Thornton Tomasetti I Building Skin Practice
Lance Evans Vice President I HKS I Sports and Entertainment
FACADES + Performance I Resilience Building Skin Practice
ETFE – Trend or Resilient Technology Define Resilience ETFE System Examples Technology – Components Technology – System Properties Future Developments System Suppliers Case Studies
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ETFE – Trend or Resilient Technology RESILIENCE I The Intentional Design of Buildings in Response to Vulnerabilities to Disasters Scenarios RESILIENCE I Life and Longevity of Building Systems During Standard Operation – Holistic Durability RESILIENCE I Technology Stands the Test of Time – Performance Requirements of Today and the Future
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ETFE – Trend or Resilient Technology Resilience I Disasters Scenarios I Specific to Location / Region Resilience I Holistic Durability I Life Safety Resilience I Sustainability I To Endure I Performative Design
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ETFE – Trend or Resilient Technology Today I The Technology is Associated with Innovative and Iconic Structures Tomorrow I Will the Technology Transition to Mainstream Architecture? Resilience I Performance Requirements of Today and the Future
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Today I Innovative and Iconic Structures
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Iconic Example I 2000
Vector Foiltec
Eden Biomes Building Skin Practice
Iconic Example I 2002
SuperSky
National Space Centre Building Skin Practice
Iconic Example I 2006
Seele Cover (Covertex)
Allianz Arena Building Skin Practice
Iconic Example I 2008
Vector Foiltec
National Swimming Center - WaterCube Building Skin Practice
Iconic Example I 2014
Vector Foiltec
Sochi 2014 Building Skin Practice
Iconic Example I 2016
Vector Foiltec
Minnesota Multipurpose Stadium Building Skin Practice
Today and Tomorrow I Transition into Mainstream Architecture Potential Tipping Point of the Technology Comparable Materials and Technologies Still Dominate Market Moving Beyond Trend
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Technology Development I 1986
Vector Foiltec
Chelsea Hospital I Early Example of Program Building Skin Practice
Technology Development I 1996
Vector Foiltec
Hampshire Tennis Complex I Cable Structure Building Skin Practice
Technology Development I 2000
Vector Foiltec
Festo Headquarters I Dynamic Shading Building Skin Practice
Technology Development I 2002
Vector Foiltec
Kapuziner Atrium – Existing Building Building Skin Practice
Technology Development I 2004
Vector Foiltec
Oval Complex Atrium I Lightweight Solution Building Skin Practice
Technology Development I 2004
Vector Foiltec
Art Center College of Design I First US Project Building Skin Practice
Technology Development I 2004
Vector Foiltec
Siren Photography Studio I Faรงade Application Building Skin Practice
Technology Development I 2006
Vector Foiltec
US Federal Building – ATF I Blast Considerations Building Skin Practice
Technology Development I 2007
Structureflex
Charlotte Light Rail I Single Layer Building Skin Practice
Technology Development I 2007
Boca Raton Resort and Club I Hurricane Considerations Building Skin Practice
Technology Development I 2009
Vector Foiltec
Unilever Headquarters I Double Wall Integration Building Skin Practice
Technology Development I 2011
Novum
SUNY Albany Canopy I Existing Building Building Skin Practice
Technology Development I 2013
CURTAIN WALL + ETFE
Birdair I Seele
Yonkers Race Track I LED Integration Building Skin Practice
Technology Development I 2010
Hightex
Dolce Vita Shopping Center I Foil Compositions Building Skin Practice
Technology – Components
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Technology
Composition of ETFE Building Skin Practice
Technology
Stress
!
Steel
ETFE-film
Strain !
ETFE Stress Strain Diagram Building Skin Practice
Technology
Foil Systems I Single Layer Membrane I Pneumatic Panels Building Skin Practice
Technology Cladding / ETFE Foils– single layer Frame / Pressure Plate – attachment to support structure Cable / Rod Tie Downs
Single Layer Membrane I Typical Edge Condition Building Skin Practice
Technology Cladding / ETFE Foils – Multiple Layers Extrusion / Pressure Cap – Capture of ETFE Bracket / Upstand – connection to structure
Multiple Layer Pneumatic System I Edge Condition Building Skin Practice
Technology
Two Types of Engineering Strategies Building Skin Practice
Clear Foil
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Dot-Matrix
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Custom Print
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White
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Color Tints
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Open
Closed
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Technology – System Properties
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Technology I System Properties / Advantages daylighting control I variability geometric capacities – free form structural performance – long-span / blast performance variable thermal properties catalyst for passive concepts acoustic performance fire self-venting / noncombustible unaffected by atmospheric pollution / low maintenance ecologically friendly / energy efficient lighting / projection opportunities Building Skin Practice
Technology I System Properties
Daylight Control I Variability Building Skin Practice
Technology I System Properties
Geometric Capacities Building Skin Practice
Technology I System Properties
Structural Performance Building Skin Practice
Technology I System Properties
3 layer system
.345
5 layer system
u-value
.208
Btu/h ft² f°
Thermal Performance I Variable Building Skin Practice
Technology I System Properties
Acoustic Building Skin Practice
Technology I System Properties
Catalyst for Sustainable / Passive Concepts Building Skin Practice
Technical I System Properties
Fire Characteristics Building Skin Practice
Technical I System Properties
Life / Longevity I Low Maintenance Building Skin Practice
Technology I System Properties
Ecology I Low Embodied Energy Building Skin Practice
Technology I System Properties
Ecology I Weight Building Skin Practice
Technology I System Properties
Light Projections / Display Building Skin Practice
Technology I Future Developments
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Technology I Future Developments Super Insulators I Nanogel Integration PV Integration Selective Coatings LED Grid Integration Composite System Development
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ETFE Manufacturers
CURTAIN WALL + ETFE
ETFE SPECIALIST
FABRIC + ETFE
Birdair Building Skin Practice
Case Studies
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Before
After
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Existing Condition: The Metro Dome
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Metro Dome Next 2007-2009
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2 Major Collapses
Great Recession Building Skin Practice
Metro Dome roof collapse 2010
Do You Need Retractably?
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Minneapolis Multi-Purpose Stadium
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Big Picture Planning Response
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In the Past and Present
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Geography
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Why ETFE
I. Climate
II. Connection
III. Sustainability
IV. Technology
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I.
Climate
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Typical Stadia Structure
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40%-50% PREMIUM FOR A RELATIVELY FLAT OR SHALLOW SLOPED ROOF IN MINNEAPOLIS 40%-50% Premium For a Relatively Flat or Shallow Sloped Roof in Minneapolis
$93M → $135M $70M → $125M
$85M → $150M
$90M → $140M Building Skin Practice
Rule Number One: Get The Snow Off The Roof
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01 GENERIC
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02 ADAPT
03 RESPOND
04 RESULT
Snow Removal Strategy
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ETFE’s Effect
13 psf reduction in snow loading
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PANEL LENGTH
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ht
300+ ft
Design of ETFE Building Skin Practice
Case Study
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Unbalanced Load Analysis
LOAD CASES Proposed Adjustment to Base Detail
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WELD I SNOW CABLE I PRINT PATTERN - ORIENTATION Snow Cable - Perpendicular
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The Super Truss: One of the Lightest Roof Structures in the NFL
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II.
Connection
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The MET
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Ability to Grow Turf
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Operability
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Clear is the New Retractable Building Skin Practice
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III.
Sustainability
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Solar Heat Gain Advantages/Disadvantages
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Solar Heat Gain Advantages/Disadvantages
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Solar Heat Gain Advantages/Disadvantages
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Solar Heat Gain Advantages/Disadvantages
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Solar Heat Gain Advantages/Disadvantages
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Sustainability Analysis – Solar Radiation
Opportunity Due To Exposure
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IV.
Technology
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Integral Lighting
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IV.
Technology
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