facades: chi 2013 - stefan behnisch
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Facades+: Chicago 2013 Stefan Behnish Powerpoint PresentationTRANSCRIPT
FACADES+ PERFORMANCE CHICAGO 10/2013
Stefan Behnisch
Behnisch Architekten Stuttgart München Boston
Our Built Environment
Urban Public Realm Witnesses of Our Cultural Abilities
Material Responsibility Reuse of Valuable Resources
Nature Air / Climate Daylight Artificial Light
Cultural Context
Energy
Focus on Facades
Urban Public Realm Witnesses of Our Cultural Abilities
Material Responsibility Reuse of Valuable Resources
Nature Air / Climate Daylight Artificial Light
Cultural Context
Energy
Urban? Why?
More efficient infrastructure
No sprawl
Stabilize the economy
Not just cities, dense cities
What determines density?
Quality of living
The public realm is more than infrastructure, it is our cultural stage
Infrastructure is defined per person, not by area
What is the appropriate density?
Dubai 1990 Sheik Zayed Road
Dubai 2007 Sheik Zayed Road
A competition for the tallest building in the world can be observed before the onset of each economic crisis, according to the Washington Post – January 2012 Context? What context forms the basis of cultural stability?
Behnisch, Behnisch & Partner
Behnisch, Behnisch & Partner
Behnisch, Behnisch & Partner
Behnisch, Behnisch & Partner
Behnisch, Behnisch & Partner
Behnisch, Behnisch & Partner
Behnisch, Behnisch & Partner
Ground Level
BEHNISCH ARCHITEKTEN
3rd Floor
BEHNISCH ARCHITEKTEN
UnileverHaus HafenCity, Hamburg
+ Insulating Low-E Coated Low-Iron Glazing + ETFE (Ethylene Tetrafluorethylene) + Membrane is lighter than utilizing glazing + Network of cable frames create saddle construction for membrane
façade + Pressure Rods and Tension Cables hung from slab edges with
outriggers + Wind Suction cables take pressure off membrane
ASSEMBLY Double Skin Facade
BEHNISCH ARCHITEKTEN
Energy Concept
outgoing air
natural ventilation
airconditioning heat exchanger
thermo active building systems
green roofs sun protection
LED lighting
foil fassad
BEHNISCH ARCHITEKTEN
Sustainability
Grey energy depending on the construction method and gross floor surface
Mass construction with glass
Mass construction
Mixed construction
Light wood construction
Location Conference Hall
Roberto Burle Marx Garden
GBI (4)
GBII (5)
PCT (6)
New Conference Hall (2)
Presentation model Conference hall
Visualization of the inside of the Conference Hall
Energy Concept
Lounge
Perspective from Place des Nations
BEHNISCH ARCHITEKTEN
BEHNISCH ARCHITEKTEN
+ Ramps, walkways, and stairs connect work areas + Meeting points along these routes for staff encourage exchanges between colleagues + Varied sequences of spaces enrich the working environment + Communication + Informal Spaces
DESIGN CONCEPT Atrium Neighborhoods
Option 1
Street Level
Mt. Royal Avenue
Level 7
Level 12
OFFICE/CLASSROOM FAÇADE ALL WORKSPACES HAVE OPERABLE WINDOWS AND INDIVIDUALLY CONTROLLABLE, EXTERNALLY MOUNTED, SUN PROTECTION A GLASS RAINSCREEN PROTECTS BOTH THE PROGRAMMATIC INTERIOR WORKSPACES AND THE SUN SHADING DEVICES FROM STRONG WINDS
+ Insulating Low-E Coated Low-Iron Glazing + ½” Tempered Laminated Low-Iron Glazing + Opaque Metal Composite Panels + Operable Windows + External Shading
ASSEMBLY Double Skin Facade
University of Baltimore Law School Baltimore, Maryland
Landesgirokasse Stuttgart, Germany
+ Distribution of daylight + Solar Radiation: Allow daylight & block short and long-wave spectrum + Retract @ 23 MPH + Controlled by BMS + Provide User Comfort – Air Temperature & Humidity + Reduce use of artificial light
SOLAR CONTROL External Venetian Blinds
+ Natural Ventilation – Fresh Air Supply + Sun & Wind Protection + Comfort Factors as Parameters of Building Skin Design + Module Sizes: Based on typical programmatic unit (the office)
Construction Drawings
BEHNISCH ARCHITEKTEN
DAYLIGHTING Spatial Organization & Local Control + Daylight Factor Level +3% + Exterior retractable louvers
reduce glare + Exterior blind tilt angles vary to
allow daylight to be redirected in the upper 1/3rd of interior
+ Descend or retract when façade radiation passes certain limits
+ Local override for daylight
BEHNISCH ARCHITEKTEN
Corridor Office
Enlarged Plan at Vertical Passive Transfer Air Slot
+ Manual Operation of Vents – User notified by indicator light
THERMAL COMFORT Window Automation
+ Heat Transfer by building occupancy + Use of thermal mass + Active Slab Operation allowed during natural ventilation + Windows automatically close when conditions surpass the acceptable range
THERMAL COMFORT Active Slabs
Vertical Passive Air Transfer Slot Locations – Level 5
9’ or 10’ Length Passive Transfer Air Slot
Passive Transfer Air Duct with Sound Attenuator 7 sq.ft. Free Area
+ Mechanical Ventilation disabled upon window opening for perimeter zones + Mechanical Ventilation always active for interior zones + Transfer Air Slots used for both mechanical and natural ventilation modes + “Used” air is recycled in the Atrium, which can accommodate fluctuations in temperature better than offices
THERMAL COMFORT Transfer Air
+ Operable windows can be used for ~4 months a year
+ Smoke exhaust fans at skylight maintain negative pressure in atrium
+ Occupants choose between mechanical and natural modes
+ Natural mode deactivates when windows are opened
INDOOR CLIMATE CONCEPT Natural Ventilation Mode
+ Provided by active slabs in occupied spaces + AHU delivers minimum outside air – Air Quality & Dehumidification + Classrooms are delivered air via displacement air + Offices are fed air via windows or overhead systems monitored by VAV + Transfer air sent to atrium
INDOOR CLIMATE CONCEPT Cooling Mode
LIBRARY FAÇADE
BEHNISCH ARCHITEKTEN
+ Insulating Low-E Coated Low-Iron Glazing w/ Gradient Frit Pattern + Insulating Low-Iron Full Ceramic Frit Spandrel Glazing + Insulated Operable Awning Vent
ASSEMBLY Checkerboard Unitized System
BEHNISCH ARCHITEKTEN
+ No external shading + Pattern minimizes coverage near ceiling + Deep spaces force strategic programmatic layouts – Stacks & circulation located in interior while reading rooms & group study rooms located near façade + Interior programs benefit from daylight from atrium + Glare protection achieved with interior screens
DAYLIGHT AND THERMAL CONTROL Silkscreen Pattern
ATRIUM FAÇADE
BEHNISCH ARCHITEKTEN
+ Automatic Vent Operation – Opens when conditions permit, not by push button operation Radiant Fin Tubes + Downdraft of cold air at atrium facades create cold spots which would cause local discomfort
THERMAL COMFORT Window Automation
+ Spacing to block intense solar rays but still allow plenty of views outward + Minimal reliance on artificial light in atrium allows for more creative design
DAYLIGHTING Fixed Blade Louvers
Thema der Folie
Ergonomic Improvements
Reduced Emissions Optimization of Interior Space
Functional Diagram
Integration of PV Elements in Facade
Zumtobel Intelligent Facade Exhibit, 2010 Light + Building Conference, Frankfurt
Zumtobel Intelligent Facade Exhibit, 2010 Light + Building Conference, Frankfurt
Interior View
Siteplan IIT Campus
Interior Organisation and Outer Envelope
Thema der Folie
BEHNISCH ARCHITEKTEN
Thema der Folie
Section
Thema der Folie
Facade Pattern
BEHNISCH ARCHITECTS INC.
Smart Envelope
BEHNISCH ARCHITEKTEN
Climate Concept
Thema der Folie