andrea detweiler

P O R T F O L I O

2012-20

15

4

14

20

26

C O N T E N T SHOUSING IN CHICAGOLAND Resiliency in the Face of Impending Climate Doom

LIGHT, AIR, MOVEMENT Kinetic Skylight

SARAHA NYINGMA BUDDHIST INSTITUTE Here Now

WATERSHED JUNCTION A Machine is a Wetland for Parking In

TYPE, PLACE, TIME | PROFESSOR PETER KEYES | WINTER-SPRING 2015

In the near future, energy prices will become increasingly unaffordable as oil becomes more scarce. This project proposes housing that will remain affordable to heat and cool even after energy prices become unaffordable.

Energy scarcity will become particularly problematic in areas like suburban Chicago. It is a particularly relevant case study to examine given its significant heating and cooling season and its car-oriented development pattern.

Though suburban Chicago poses unique challenges, it is also promising in terms of opportunity for change. This housing solution makes use of Chicago’s repetitive block pattern and lot size to propose a replicable multifamily housing module. It also makes use of Chicago’s well-established commuter rail system, Metra, to propose a less energy-intensive alternative to car-oriented development.

HOUSING IN CHICAGOLAND: RESILIENCY IN THE FACE OF IMPENDING CLIMATE DOOM

TRANSIT-ORIENTED DEVELOPMENTThe proposed multifamily building fits on three adjacent 30’x125’ lots, of which Chicago has thousands. This three-lot solution comprises 19 housing units, which would replace only three single-family homes. Placing these denser buildings near commuter rail stations would contribute to a hierarchy of density within the endless repetitive blocks of single-family housing. Mapped below are the lots within half a mile of a transit station, showing the significant number of lots on which this solution might be applicable.

10,000 - 145,000

PEOPLE PER SQUARE MILE METRA LINES

PROPOSED METRA LINES

3,000 - 10,000

1,000 - 3,000

100 - 1,000

10,000 - 145,000



3,000 - 10,000

1,000 - 3,000

100 - 1,000

10,000 - 145,000



3,000 - 10,000

1,000 - 3,000

100 - 1,000

COMMUTER RAIL LINES + POPULATION DENSITY

SITE PLAN

CONNECTION TO THE OUTDOORSEvery unit has private outdoor space, and the larger family units also have direct access to the semiprivate courtyards. Unconditioned glass enclosures provide circulation to 6-7 units each and provide a warm indoor/outdoor space in which residents can enjoy daylight in the cool spring and autumn.

UNITS WITH A MINIMAL FOOTPRINTThe dwellings make use of the spatial techniques diagrammed at right in order to feel more generous than their areas would suggest.

The residents of suburban Chicago are accustomed to private outdoor space in addition to larger units. By incorporating outdoor space in a way that it feels like part of the unit, even small dwellings have access to outdoor space with a high degree of privacy.

With carefully placed windows along sightlines and at the corners of rooms, the dwellings create a feeling of connection to the outdoors and avoid the “thermos-bottle” effect of many Passivhaus buildings.

34' - 0"

14' -

6"

27' - 0"

18' - 0"

18' -

0"

36' -

6"

34' - 0"

14' -

6"

27' - 0"

18' - 0"

18' -

0"

36' -

6"

STUDIO 290 SF 1 BR 490 SF

OUTDOOR SPACE AS PART OF THE UNIT

SPATIAL LAYERING

CONTRAST BETWEEN TIGHTLY PACKED POCHE

AND FLEXIBLE OPEN SPACE

EROSION AT CORNERS

UP

34' - 0"

14' -

6"

16' - 0"

40' -

0"

UP

34' - 0"

14' -

6"

16' - 0"

40' -

0"

DN

DN

34' - 0"

14' -

6"

27' - 0"

18' - 0"

18' -

0"

36' -

6"

2 BR 980 SF 1 BR 660 SF 3 BR 1120 SF

ENERGY ANALYSIS

RESULTS

SUMMARY

Comparison to Passivhaus Standard

Cooling Demand: 4.00 kBTU/sf/yr

Heating Demand: 3.93 kBTU/sf/yr

Source Energy Demand: 49.3 kBTU/sf/yr

22.5 Occupants

9 Dwelling Units

Heating Setpoint: 65 F

Cooling Setpoint: 77 F

Gross Floor Area: 5625 sf

Net Floor Area: 4500 sf

Walls

Windows

Doors

Roof

Floor

Airtightness

Heating: Air-Source Heat Pump

Cooling: Air-Source Heat Pump

Heat-Recovery Ventilator

Heat Pump Water Heater

40.3

R-value

6.5

5.6

79.8

51.2

.3 ACH

100%

E�ciency

410%

83%

180%

83%

84%

130%

ENERGY ANALYSISTaking a Passivhaus approach to heating and cooling, these are well-insulated, air-tight buildings. Analysis was done using studio energy consultant Dylan Lamar’s custom software, a simplification of the Passivhaus software. The building’s heating and cooling demand both meet Passivhaus standards. The thick walls are expressed as a shell from which windows have been cut away, leaving blue “poche” where openings are punched out of the enclosure.

STANDING SEAM METAL ROOF

WEATHER BARRIER

PLYWOOD SHEATHING

18” WOOD TRUSS

18” BLOWN-IN FIBERGLASS INSULATION

CUSTOM GUTTER/FASCIA

ZOLA THERMOCLAD CASEMENT WINDOW

2X6 STUD WALL

5.5” BLOWN-IN FIBERGLASS INSULATION

12” I-JOIST WITH FIBERGLASS INSULATION

CONCRETE FOOTING

GROUND-CONTACT RATED BOARD

WOOD SIDING

3/4” VERTICAL BATTENS

4” POLYISO FOAM INSULATION, TAPED AT SEAMS

LIQUID-APPLIED WEATHER AND AIR BARRIER

WOOD BEAM

.5” GYPSUM BOARD

WOOD SIDING


4” POLYISO FOAM INSULATION


2X6 STUD WALL


.5” GYPSUM BOARD

ZOLA THERMOCLAD FIXED WINDOW

FLASHING

STANDING SEAM METAL ROOF

WEATHER BARRIER

PLYWOOD SHEATHING

18” WOOD TRUSS

18” BLOWN-IN FIBERGLASS INSULATION

CUSTOM GUTTER/FASCIA

ZOLA THERMOCLAD CASEMENT WINDOW

2X6 STUD WALL


12” I-JOIST WITH FIBERGLASS INSULATION

CONCRETE FOOTING

GROUND-CONTACT RATED BOARD

WOOD SIDING


4” POLYISO FOAM INSULATION, TAPED AT SEAMS


WOOD BEAM

.5” GYPSUM BOARD

WOOD SIDING


4” POLYISO FOAM INSULATION


2X6 STUD WALL


.5” GYPSUM BOARD

ZOLA THERMOCLAD FIXED WINDOW

FLASHING

SHELL WITH PUNCHED OPENINGS

PLAN DETAILWALL SECTION

KINETIC ARCHITECTURE | PROFESSOR STEPHEN DUFF | SPRING 2014

LIGHT, AIR, MOVEMENT: A KINETIC SKYLIGHT

An entirely human-powered device, this kinetic feature draws attention to passive ventilation and daylight. The skylights lift up and off of the building, poeticizing the movement of air through the atrium. The apertures were designed around the necessity to create a weatherproof enclosure, and they are sized to meet 50% of the building’s cooling load through stack ventilation.

Counterweights minimize the force necessary to operate the mechanism. The skylights can be opened by one person turning a hand wheel, applying about one quarter horsepower over 12 seconds.

Project completed with teammates Alexandra Forin and Benjamin Toda.

CLICK TO WATCH ANIMATION https://www.youtube.com/watch?v=2x9PUYEtma8

90� bevel gears

90� bevel gears7:1 gear reduction

4:1 gear reduction

3’ handwheel

1.5” torsion tube

2.5” torsion tube

wheels and axle

W4x13 link arms

HSS 3x1.5 - 1/4 window3/8” tempered glass

270 lb counterweight

DRIVE SYSTEM

SKYLIGHT SYSTEM

ASSEMBLYEnsuring safety, there are no exposed mechanisms within a person’s reach. A rotary viscous damper keeps the mechanism operating at a constant speed and avoids uncontrolled movement, and a locking mechanism prevents unintended motion due to wind.

Stack ventilation accounts for 12btu/ h ft2, or about 50% of the building’s cooling load.

Stack opening area: 288 ft2

Total floor area: 10,000 ft2

Daylight factor: 5%Heat gain: 25.7 btu/ h ft2

The counterweight is designed to minimize the amount of work necessary to open the skylights. As the graph at right shows, the horizontal distance of the counterweight to the axle (and therefore the moment force of the counterweight) closely resembles the distance of the window to the axle at each point during the wheel’s rotation, canceling each other out nearly exactly. The power needed to open the window was calculated using the maximum difference between the window and counterweight’s moment (3200 #in). The largest differences occur at the beginning and end of the wheel’s rotation, helping to keep the skylight shut when it is shut and open when it is open.

MECHANICAL DESIGN

PERFORMANCE

COUNTERWEIGHT

DEGREE OF ROTATION

80º0º

3”

4”

2”

1”

10º 20º 30º 40º 50º 60º 70º 90º 100º 110º 120º

WINDOW

HO

RIZ

ON

TA

L D

IST

AN

CE

F

RO

M A

XL

E T

O P

IN

STACK VENTILATION CAPACITY

STACK HEIGHT

Btu/ h ft2

30%

75

60

45

30

15

20%

10%

0

ST

AC

K A

RE

AP

ER

CE

NT

AG

E O

F F

LOO

R A

RE

A

0 10 20 30 40 50

ft

HERE NOW | PROFESSOR KEVIN NUTE | FALL 2013

SARAHA NYINGMA BUDDHIST INSTITUTE | EUGENE, OR

Saraha Nyingma Buddhist Institute was established in 2011 in a building that was originally a Unitarian Church. This project converts that building into a temple more suited to their needs, which include educating newcomers about the Dudjom Lineage and the paths to Enlightenment. They hope this renovation enhances their welcoming presence in Eugene, increasing public awareness of Tibetan Buddhism and inviting new practitioners to the site.

This intervention places particular emphasis on the temple, highlighting it as sacred space. The octagonal temple was part of the existing building; I stripped away the rest of the building and set it in a pool of water, emphasizing its uniqueness. The new building surrounding it is deferential to the temple and encloses the sacred space around it.

TEMPLE SET LIKE A JEWEL

TEMPLE SET LIKE A JEWEL

EXISTING FOOTPRINT

PERMEABLE BOUNDARY

The building surrounding the temple is a habitable edge from which the temple set in its wooded context can be viewed. It consists of a visitor’s center, library, classrooms, workshop, guest lodging, and an apartment for the resident Lama. A significant portion of the building is covered but not enclosed, allowing users to be outdoors for much of the year in the mild but rainy Eugene weather. This brings practitioners closer to the meditative qualities of nature. Stone bearing walls perpendicular to the temple open up views into the wooded site, giving it a welcoming presence while clearly defining it as sacred space.

HABITABLE BOUNDARY

COVERED TERRACE

ENTRANCE

VIEW FROM THE LIBRARY

A MACHINE IS A WETLAND FOR PARKING IN | PROFESSOR BROOK MULLER | WINTER 2014

WATERSHED JUNCTION | PORTLAND, OREGON

This project takes a parking garage, typically the bane of urban infrastructure, and uses it to address a broader reality of transportation. The addition of a biodiesel production facility, a museum of transportation, and a public wetland plaza exposes the past, present, and future of transportation and the energy and environmental systems related to it. To illustrate these systems, the design is a microcosm of the regional watershed. A slot carved into the building emphasizes the axis linking the Tualatin Mountains and the Willamette River, pointing to where Portland’s water comes from and where it goes to. This site is a link along that journey.

Project completed with teammates Lore Burbano and Nicole Ghiselli.

ARCH 484/584 A MACHINE IS A WETLAND FOR PARKING INWINTER 2014 | PROFESSOR BROOK MULLERLORE BURBANO | ANDREA DETWEILER | NICKI GHISELLI

WATERSHED CORRIDOR

ENERGY

TRANSPORTATION

ZIDELL DEVELOPMENT PLAN

MOVEMENT THROUGH THE SITEPEOPLE The garage is located at a new light rail stop, which a plaza links with the pedestrian river path. A mechanical parking garage connects auto commuters with the light rail and river path systems.

ANIMALS The pedestrian plaza overlays a constructed wetland that supports a prey base for salmonids in the river and reestablishes habitat for many species that used to reside in the area.

WATER A slot carved into the building emphasizes the axis linking the Tualatin Mountains and the Willamette River, symbolizing the direction of the watershed. Before it reaches the river, rainwater collected onsite passes through a biodiesel production plant, a carwash, a water treatment facility, and a constructed wetland.

MOVEMENT OF PEOPLE/WATER

Algae is grown in glass panels on the south facade and its oil extracted and made into biodiesel on-site. The green facade acts as a billboard for alternative energy.

OFFICES

A

B

TRANSPORTATION MUSEUM

FUEL STATION AND BIODIESEL PLANT

MECHANICAL PARKING

WETLAND PLAZA

DISPLAYING ALTERNATIVE ENERGYThis project exposes the energy systems involved in transportation. A museum on the prominent northwest corner of the site informs visitors about the history and future of modes of transportation and their energy use, including the site’s heritage as a shipyard during the World Wars. Juxtaposed with this is a production facility that researches turning algae into biodiesel.

algae production

biodiesel research

carwash

o ces

classroms and lecture hallreturn: nutrient-rich water

return: water purified with biosand filter

imagine the future

recollect the past

take part in the present

SECTION A MUSEUM AND BIODIESEL PRODUCTION FACILITY

SLOW THE WATER FLOW AVOID DEAD CORNERS INCREASE PERIMETER MAINTAIN WATER DEPTH

SECTION B PLAZA WITH CONSTRUCTED WETLAND

AREA WETLANDS

Biodiesel is sold on-site at the fueling station. A carwash completes this one-stop shop for people parking their cars at the garage. In addition, every car that enters the garage has its underbody rinsed in order to remove the buildup of brake dust, containing heavy metals. This prevents brake dust from ending up on the roads, where it is washed into wetlands and rivers, causing harm to amphibians and fish. Water from the carwash and biodiesel plant is treated before it is reintroduced into the wetland, through which it eventually reaches the river.

UNDERBODY CAR WASH

ENTER

EXIT

EXIT

MECHANICAL LIFTS

WATER COLLECTION

MECHANICAL PARKING

WATER

VIEW FROM THE MUSEUM TO THE PLAZA

T H A N K Y O UAndrea Detweiler

M. Arch., University of Oregon, June [email protected]

andrea detweiler

Documents