Historical/ Commecial
Re s id e nt ial/ Commecial
FLEXIBLE JUNCTION
Commecial/ Historical
Historical
College Ave
Flexible Junction is located on the corner of 6th avenue and College Ave in Des Moines, Iowa. 6th avenue is a currently underutilized commercial corridor that is situated within, in many respects, a disenfranchised neighborhood. Our goal here was not to offer a panacea for the corridor’s socio-economic issues by making a new attraction, but to offer a socially and environmentally responsible solution that
could be easily altered, deconstructed, and or used elsewhere as the corridor changed. In tvvvhhhhhhis sense, Flexible Junction is a building proposal that equally strives to achieve net-zero and create a c ontex tuall y s ensiti ve design through flexibility in its form and function.
Evolution
Elementary School
Residential/ Commecial
6 th Ave
Residential/ Commecial
Step 2
Step 1
Step 4
Step 3
Function
Coffee shop
Book store
Icecream /deli
N Our programmatic solutions are inspired by the temporal parameters established by the live/ work dichotomy present in the existing neighbor. We envision their functions not only serving the surrounding community but enhancing it.
Site Plan Typical routine of a 6th avenue resident Wake up
Grab a coffee
Accessible residential units
Go to work
Eat at home
Watch Tv
Shower
Commute
Sleep Attend school
An average day of energy consumption- peaks and plateaus
Lunch at Ice cream shop/ deli
Study in bookstore
SYSTEMS & PERFORMANCE
Permeable concrete ensures t hat t he 3 6.02 "average annual percipitation returns to the soil or is stored in our 2300 gallon sized grey/ rain water tanks and reused fo r i r r i gat i o n a n d to li et s.
P V inte rg rate d aw nin g s line the perimenter of the the bottom lower half of t he s out her n facade; providing dual shading a n d r e n e wa b l e e n e r g y.
G e ot h e r ma l of f s et s t h e heating and coolings loads placed on our domestic hot water heater and HVAC
Southern residential facade utilzes the solar gain generated by the solar room for passive heating and cooling U-factor= 0.37 (SHGC) = 0.33 (VT) = 0.57
20% of the roof is covered in skylights with a visible transmittence of 0.52 to increase daylight efficiency (average 3-6%) and faciltate stack ventilation through solar gain (U-factor= 0.2) (SHGC) = 0.3)
2000 sqf t. of PV panels generate electricity and offset both the appliances in the building as well as seldom needed HVAC
Radiant h eat ing /c o o ling i s available on the commercial floor, cooling on the residential, and radiant heating in the storage rooms
ADAPTABILE COMFORT Thermostatically operable curbed skylight 1/4”Concrete finish Permeable paver
2” Concrete w. Radiant Heating Vapor barrier
Filter fabric
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2
3
4
5
6
7
8
9
10
summer
1
2
3 4 Rainwater 5& grey water tanks
2
6 3
8 7 9HVAC 10 duct Ventilation/ 4 5
6
47 1
Radiant 10 cooling 39 floor 4 28 5 5
4 7
258
39 410 5 Thermostatic skylight awning
8
36 9
69
4 5 Thermostatically 8 7 9 10 10 linked fan 7 9 4 10 working station 58 10 Geothermal
7
58 9 10
9 Domestic hot water tank 10 10 Radiant floor heating
Thermal mass
Wall to floor connection Wall U-value: 0.02
CLT to concrete connection at grade
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2
3
4
5
6
7
8
9
10
diffuse light
direct light
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3
4
5
6
7
8
9
10
6 6 7 7 8 8
4 4 5 5
9 9 1010
1
2
3
4
5
6
7
8
9
10
Roof to wall connection Roof U-value: 0.03
winter 26.5°
1
Steel gusset plate and galvanized bolts
2” Rigid insulation
73.5°
1 1 2 2 3 3 3 4concrete 2 5 Permable
2” EPS rigid insulation
Aluminium plate
7.87’’ CLT
6.66’’ Cross-laminated timber
House wrap
Foundation to ground connection Foudation U-value: 0.03
Rain collecting gutter
Vapor Barrier
10” Gravel sub-base
Plywood
Drainage
Rigid insulation
Double-stud wall w. mineral wool insulation 5 1/2” each
6” Aggregate
4” Rigid Insulation
Aluminium curb
Radient heating/cooling
1/2” Insulated firing
18” concrete 4” Reinforced concrete
Wood flooring
1” Air Gap
Concealed galvanized steel connector
Concrete edge 1 1/2” restraint Bedding rock
House wrap
1
9
Brick/Wood Veneer
2” EPS rigid insulation
1
2
3
4
5
6
7
8
9
10
1
1 2
6
6 7
3
2
8
7
1
2
3
3 4 6
4 5
5
7
8
8 9
9 10
10
4
5
9
10
LASTING EXPERIENCE Weekly tenant
Ice cream/deli
Book store
Coffee shop Book store mezzanine
UP
DN
Monthly tenant
Yearly tenant Solar corridor
Solar room Solar corridor I
Yearly tenant
Floor 1 UP
CLT or cross laminated timber is our primary structure. This prefabricated, low carbon and recyclable panel system, allows us to create the most flexibilty in our form, as the potential function of the space changes with the neighborhood. With slight variation to the envrionmental systems, the various combinations provide alternative infill solutions for the remaining corridor.
DN
Floor 2
TYPE 2
Yealry tenant
TYPE 1
Coffee shop
More and or all residential/ commercial In this combination we infill the open cut out in the walls in the lower volume and in fill the atrium by switching out panels. Would be best suited for a parcel that recieves cross ventilation.
TYPE 3
Book store
Flexible junction currently The current layout facilitates community interation with its open concept. It also allows the residential and commercial volumes passive systems to work independently of each other. Icecream/deli
Town homes or live work businesses In this combination we include additional staircases allowing the use of both floors. Would be best to extend the solar room down on both floors and include a trombe wall.