SITE ANALYSIS + CONCEPTS

Transcription

1 SITE ANALYSIS + CONCEPTS SITE AND SEASONAL QUALITIES S CSBR L.ARCH ARCH CORE: a new programmatic core is the counterpart of the piazza of the courtyard. It serves as a circulation backbone, connecting the formerly disparate departments of architecture, landscape architecture, and the CSBR, catalyzing interaction between these departments and integrating the CSBR into the university culture. The core also serves as a passive strategy; it pours diffuse north light into the new atrium and pulls stale air out of the building through stratification. SB UR BUNGE LL Y PREDOMINANT SUMMER WIND NORTHRUP PUBLIC FRONT REACTION: the inner-facing ERY ART TH L and universal Cerny building is acknowledged and re-interpreted in the CSBR addition. The reclusive O is broken into a South-facing C, exposing the inner loop circulation to generous south light and opens the building to cool summer breezes. HEAVILY SHADED CHU RCH S T. NOR MAL RUP ARCHITECTURAL CONCEPT PREDOMINANT WINTER WIND PI SUN PATH DEC. 21 LAYERS: the CSBR addition is conceptualized as a series of delaminated layers, gradually opening to the South of the building, forming a gradient of spaces from seasonally exposed outside courtyards to semienclosed meeting spaces to fully sheltered workspaces. Layers are exposed on the East and west facades, but continue through the building, defining separations in program. SUN PATH JUN. 21 ECOLOGICAL CONNECTIVITY Campus ecological corridors,...and linear rain gardens running populated with native south toward the Mississippi River... vegetation.....transition with the dramatic topography of the river bank... ECOLOGICAL LANDSCAPE CONCEPT... terminating at the Mississippi river ecosystem Intimate front porch off of conference room Gathering space on public west front Native seasonal Rain garden delineating shading device southern boundary Extensive sedum green roof above courtyard S

2 DAYLIGHT AND THERMAL PROGRAM THERMAL PROGRAM 3RD FLOOR 4TH FLOOR THERMAL PROGRAM ZONES RESEARCHERS OFFICES & RECEPTION ATRIUM DAYLIGHTING CIRCULATION ENERGY & INDOOR AIR QUALITY ZONE 1: THERMAL FLUX F (conditioned range) Most direct connection to exterior thermal conditions. Temperature shifts with season, sunlight intensity, and weather. CONFERENCE PORCH SUNSPACE CIRCULATION MATERIALS SITE & WATER OUTSIDE DEMONSTRATION OUTSIDE ZONE 2: SOUTH FACING F (conditioned range) South facing areas that take full advantage of direct passive gains. Shading devices allows occupants to regulate temperature. ZONE 3: NORTH FACING F (conditioned range) Fewer windows and increased insulation for thermal stability. Limited passive gains from adjacent zones. OUTSIDE NORTH ^ DAYLIGHT PROGRAM 3RD FLOOR 4TH FLOOR DAYLIGHT PROGRAM ZONES RESEARCHERS lux OFFICES & RECEPTION lux ATRIUM lux DAYLIGHTING lux CIRCULATION lux ENERGY & INDOOR AIR QUALITY ZONE 1: SOLAR FLUX lux Most direct connection to exterior atmospheric conditions. Shifting light conditions according to season, time, and weather. CIRCULATION lux MATERIALS lux DEMONSTRATION ZONE 2: FULL DAYLIGHTING CONFERENCE PORCH SUNSPACE lux SITE & WATER Direct sunlight controlled through louvers and light shelves to minimize need for electrical lighting during occupancy hours. ZONE 3: AMBIENT DAYLIGHT lux Ambient north light provides lower but even light quality with points of task lighting as needed. ZONE 4: MINIMAL DAYLIGHT lux Low occupancy spaces with minimal daylighting required. NORTH ^ Pergolas create shaded outdoor spaces Conference room with visual connection to atmospheric conditions Ambient north lighting in researchers offices South facing corridors feed light into adjacent rooms Ample light through central core Outdoor demonstration area with protection from wind and connection to interior space Lab spaces set back from glass to reduce allow only indirect daylight Deep overhangs on 4th floor corridor allows direct sun in winter but shade in summer

3 ENVELOPE & SYSTEMS INTEGRATION LIGHTING AND HEATING STRATEGY (PASSIVE + ACTIVE) Tall, native plants filter direct summer light Overhang designed to maximize direct solar gain in winter Operable louvers block out high summer sun Solar panels angled based on 44 north latitude Radiant heat system integrated with thermal mass to supplement solar gain Solar voltaic placement COOLING AND VENTILATION STRATEGY (PASSIVE + ACTIVE) Existing forces air system Operable windows Air/Heat exchange unit Operable windows for passive ventilation Radiant Heating System Radiant Cooling System Geothermal ground loop supports heating & cooling systems Closed ground loop geothermal Atrium facilitates passive ventilation through stratification WALL SECTION SYSTEMS INTEGRATION Double-sealed window with cork separator Airducts Triple-pane glass with argon fill Concrete floor slab Ventilation duct Louver system Concrete facing panels Lighting strip Weatherproofing Rigid insulation (protects VIP from puncture) Porextherm vacuum insulated panel (primary insulation) OSM Moisture barrier Gypsum board Radiant cooling ceiling panel VIP panel insulation Radiant floor system Thermal/daylight control shutters ENVELOP PRECEDENTS Waldsee BioHaus, Bemidji, MN [Stephen Tanner of INTEP, Inc] Porextherm Vacupor VIPs meet the requirements of the German energy conservation provision EnEV without dramatically increasing the insulation thickness. They allow a slimness, which offers more space for design and is ideal for inside and outside areas. Waldsee BioHaus Made of spruce/fir, cork, larch, and aluminum cladding, Optiwin s 3 wood window is the world s finest window. It achieves the German Passivhaus Certification with an over all R-value of 8.0. Omega Center, Rhinebeck, New York (BNIM Architects) The Omega Center takes full advantage of photovoltaic roof panels, geothermal, thermal masses, natural ventilation, passive cooling, daylighting, passive heating, and shading. School Complex, Pichling, Austria [Loudon + Habeler] In the winter, fresh air is pre-heated through geothermal heat exchange and pre-cooled in the summer. Exhaust air is collected for heat recovery through rotary heat exchanger. The core of the building will act as a thermal chimney. Toronto City Hall, Toronto, Canada [PLANT Architect Inc. / Shore Tilbe Irwin & Partners] An extensive green roof offers a delightful outdoor space for work and demonstrations as well as thermal insulation in the winter and cooling in the summer. Local vegetation will connect with the surrounding environment, attract wildlife, and collect/filter rain.

4 BUILDING DESIGN 4TH FLOOR FLOOR PLANS WOM. MENS WOM. ARCHERS OFFICES CLASSROOM GREEN SPACE LOBBY WOM MENS OUTDOOR /DEMO FERENCE 3RD FLOOR WOM. RESEARCHERS OFFICES CLASSROOM GREEN SPACE LOBBY CH/SUNSPACE MENS CONFERENCE PORCH/SUNSPACE WEST RAIN GARDEN OUTDOOR /DEMO MATERIAL INVENTORY CERNY BUILDING PUBLIC GREEN SPACE HOLL BUILDING MNZED OUTDOOR /DEMO PUBLIC GREEN SPACE N^ SOUTH ELEVATION WEST ELEVATION RELATIONSHIP TO CERNY: the CSBR offices acknowledges and reinterprets the aesthetic of the existing building. While the universal regularity of the existing windows of the first two floors are not directly continued upwards, the eight-foot spacing of the windows forms the basis of columnar structure and the expanding spacing of the layers. The blackpainted steel of the floor bands are carried up into the vertical louvers of the addition, while the mass of the brick changes to board-formed concrete, drawing on existing materials. NORTH FACE: The north and south faces of the addition, rather than expressing the cross-section of the concept, show the faces of these slices. The north face is made up of five compressed layers, the outermost of concrete, the inner layers are a soft underbelly of wood, barely visible in the window sections. The window placement articulates inner program needs; narrower windows reflect spaces adjacent to the light-filled core space, wider windows are adjacent to spaces higher daylighting needs. The form of the windows is a hybrid between the vertical slots present in the Cerny building and the punched squares in the Holl addition. NORTH ELEVATION

5 DAYLIGHT AND THERMAL STUDIES BASELINE DAYLIGHTING FINAL DAYLIGHTING PERSPECTIVE VIEWS WINTER SOLSTICE, 12:00 EQUINOX, 12:00 SUMMER SOLSTICE, 12:00 SUMMER SOLSTICE, 12:00 EQUINOX, 12:00 WINTER SOLSTICE, 12:00 ROOM ILLUMINANCE STUDY DAYLIGHT AUTONOMY UDI (USEFUL DAYLIGHT ILLUMINANCE) BASELINE: NO SHADING DEVICES FINAL DESIGN: OPERABLE SHUTTERS AND LIGHT SHELF % BASELINE THERMAL FINAL THERMAL FINAL W/ RENEWABLE ENERGY BUILDING LOADS BUILDING LOADS 2,000,000 Building Energy Use 1,500,000 1,000,000 KBtu 500,000 - THERMAL COMFORT THERMAL COMFORT (500,000) (1,000,000) Code Base Baseline Optimized Design Final Design Total Solar Thermal Output (kbtu) PV production (kwh) ,001 Total Ann. Equip. Load (kwh) 231, , , ,732 Total Ann. Lighting Load (kwh) 207, , ,083 89,171 Total Ann. Cooling Load (kbtu) 262, , ,429 63,891 Total Ann. Heating Load (kbtu) 1,101,406 1,201, , ,312 GAINS BREAKDOWN GAINS BREAKDOWN Project 2 Project 3 Code Base Baseline Optimized Design Final Design Load Type Case Case Case Case Total Ann. Heating Load (kbtu) 1,101,406 1,201, , ,312 Total Ann. Cooling Load (kbtu) 262, , ,429 63,891 Total Ann. Lighting Load (kwh) 60,828 60,828 35,801 26,150 Total Ann. Equip. Load (kwh) 67,984 67,984 61,185 52,121 TOTAL ENERGY USE (kbtu) 1,803,788 1,863, , ,270 TOTAL ENERGY USE INTENSITY (kbtu/sf) PV production (kwh) ,273 Total Solar Thermal Output (kbtu) Total Renewable Energy Production ,269 Net Energy Use (production) 1,803,788 1,863, ,514 1 Net Energy Use Intensity Kbtu PER SQ. FT. 36 Kbtu PER SQ. FT. 0 Kbtu PER SQ. FT.

6 EXPERIENTIAL QUALITIES LIGHT MODEL STUDY RENDERED VIEWS Dec 21, 9:00 Dec 21, 12:00 Dec 21, 15:00 Mar 21, 9:00 Mar 21, 12:00 Mar 21, 15:00 Jun 21, 9:00 Jun 21, 12:00 Jun 21, 15:00 Jun 21, 15:00 Mar 21, 15:00 View from flux space looking east Operable shutters linked to thermal flux zone allow users inside of rooms to control the amount of heat and light entering the space. Closed Block heat/light from flux space Angled open Allow some heat, block direct light Open Take full advantage of passive solar heat and outside light levels View from flux space looking south Isometric view of west facade