ASHEDSOUTH SIOUX CITY COMMUNITY ORCHARD FACILITY

ASHED is a showcase for South Sioux City’s Ash reclamation program and the first cross-laminated timber building in (name withheld). It was built in response to the growing concern of ash tree depletion by the Emerald Ash Borer beetle and a need to prepare students with knowledge of engineered lumber construction.

ASHED was conceived as a building that would compensate for the loss of ash trees in local parks. It was important that the timber reappeared within the community and that the building’s program would support the growth of new trees in the orchard.

In 2016 SSC Parks Director and City Administrators adopted a proactive policy to remove threatened trees and protect against further infestation.

In response to public reaction, the city agreed to mitigate the loss of trees by approaching various agencies for advice. This resulted in a collaboration between the (name withheld) Forestry Service, (name withheld) College of Architecture, and a community orchard program to create a small meeting hall and storage facility, using the felled trees as the basis of design.

ASHED is a symbol for community sharing and gathering; a place to harvest apples and honey for donation to the public and educate young community members on themes of food production. The building is a two-story structure with a main function of storing tools and supplies for orchard maintenance, while secondary functions include gathering spaces for education and harvest processing.

ASHED refers to a rural shed typology utilizing exterior awning doors for quick access to tools and to create shade for exterior gathering. At the end of each day, the doors fold back into the façade creating a seamless box.

ASHED was designed and built over a two-year period and incorporated several groups of students within the design-build program. From inception to completion students were involved in schematic design, construction drawings CLT shop drawings, site coorination and extensive hands on making. The Integration of local EAB Ash with advanced CLT construction presented students with a unique learning experience in design-build education.

Since the discovery of the Emerald Ash Borer near Detroit in 2002, the “jewel” beetle has caused extensive damage across the eastern portions of the United States. It is estimated that by 2020 these costs will reach $12.7 billion dollars nationally. To date the Ash Borer has been reported in 30 states with the Great Plains showing the most recent infestations.

ASHED was designed in response to the EAB and explores methods of localized milling, controlled transportaion, drying to provide solutions to cladding and interior furnishing.

THE EAB -HARVESTING

Kiln dried rough sawn Ash

Square to 1/4” max.

Square length to max. dim.

Lap-cut linear edges

TWP treatment and sticker stacking

t

3/4”

3/8”

ash cladding

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’6’8

ASH CLADDING

ASH CLADDING

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3/4”

3/8”

ash claddingStudents worked in conjunction with local forestry organizations in the harvesting and preparing ash. Selected trees were site-milled, transported, stored, and dried under the USDA-APHIS EAB Quarantine Regulations. 2000 BF of rough sawn boards were transported to (name withheld) and planned, edged, lap cut, and treated with a protective sealant in preparation for installation.

Cladding was designed to maximumized board feet usage from each reclaimed tree. Random width and length of each board were organzed by a series of horizontal dantum lines across the facade.

HANDRAIL AND COLUMN

13 4

"

4"

12

"

2" 218

"

1'-1

1 4"

81 2

"

214

"

8"

41

4"

21

4"

65

8"

87 16

"

1'-634

"

6"

LAMINATED ASH HANDRAIL

MAKING - STUDENT FABRICATED ITEMS (SFI).The integration of Ash with CLT presented students with the opportunity to develop detailing, fixtures, and openings which explored new opportunities afforded by through interfacing with engineered lumber construction.

The construction of the project was divided between elements made and installed by students (Students Fabricated Items) and the CLT primary structure which was designed and co-ordinated on site by students.

SFI items included cladding, awning/door/window mechanisms, dowel laminated stairs, handrials, seating, stack column and interior furniture.

A - Laminated Ash Handrail

D - bi-folding door wheelhouse

C - screened windows

B - Dowel laminated staircase

SFI’S - SECTION A

B - dowel laminated staircase

D - bi-folding door wheelhouse

SFI’S - SECTION B

HANDRAIL AND COLUMN

A - LAMINATED ASH HANDRAILASHED explores techniques of lamination in the fabrication of the steam bent double-curved handrail. Ash has unique flexibility that make it ideal for forming into both radial and torque twisted shapes. Students produced and installed the handrail through dowel balustrades insterted into the CLT slab on site.

Laminated ash handrial and stacked ply column

B - DOWEL-LAMINATED STAIRCASE

Tread( 2*4 wood)

Support ( 2*4 wood)

Riser ( ply wood )

5/8 dowel

Each 2*4 wood need glue together, and use dowel make it fastness.

DRAWING STAIR

Your Name ：Bingcheng Wang 12-07-17 ARCH510-004 Jason Griffiths

COMMUNITY ORCHARD EDUCATIONAL CENTERSouth Sioux City, NE

A major SFI included the design and fabrication of the dowel laminated stairs. Students produced each stair tread from parrallel bonded dimesional lumber with 3/4” dowels pierced at random angles (to prevent delamination). The treads spaned the stairwell bearing on the CLT walls either side.

Dowel-laminated staircase, Ash handrail and balustrade

KEEP OUT RAIN

BUILT IN BUG SCREENS

KEEP OUT INSECTS

AWNING STYLE WINDOW SHUTTERS

ALLOW BREEZE IN FOR VENTILATION

issues:

Solutions:

second floor windows

Aubrey Wassung 12-07-17 ARCH610-004 Jason Griffiths

COMMUNITY ORCHARD EDUCATIONAL CENTERSouth Sioux City, NE

2 ND FLOOR WINDOWS

1/4” shim

3-ply clt

3/4” birch plywood

3/4” ash cladding

1x2 pine batten

1” pneumatic nail

2 1/4” deck screw

2” hex bolt

1x1 batten

1/8” steel plate

1x1 steel tubing

steel tube

lift arm storage clip

steel rod

lift arm

door stop

ball bearing

lift arm rest

flashing

3” lag screw

1/8” steel plate

dowel latch

170 lb/force gas piston

2” hinge

sill plate

2 ND FLOOR DOORS AND WINDOWS

C - SCREENED SHUTTER WINDOWS

DOOR LOCKS

DAYNA BARTELS 12-07-17 ARCH510-004 Jason Griffiths

COMMUNITY ORCHARD EDUCATIONAL CENTERSouth Sioux City, NE

KEEP OUT RAIN

BUILT IN BUG SCREENS

KEEP OUT INSECTS

AWNING STYLE WINDOW SHUTTERS

ALLOW BREEZE IN FOR VENTILATION

issues:

Solutions:

second floor windows

Aubrey Wassung 12-07-17 ARCH610-004 Jason Griffiths

COMMUNITY ORCHARD EDUCATIONAL CENTERSouth Sioux City, NE

The screened shutter windows allows users to operate the winter shutters from inside without allowing insects to enter the building.

Ash awning stutters with screened openings

CLT CONSTRUCTIONCLT

ASHED is constructed of prefabricated and site-assembled CLT panels. Working in conjunction with industry partners, like (name withheld), taught students about “design assist” agreements and how to work with “file-to-factory” fabrication procedures. Students coordinated delivery and negotiated site assembly processes with a local contractor.

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ISSUE DATE:

05/03/17SHEET TITLE:

SCALE:

DRAWING NO.

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CLT assembly drawing to meet suppliers notation, tolerance, panel size and connection requirements.

Bolt AssemblyLock Nut1.5” Bolt 0.25” DIA

Bolt AssemblyLock NutCompression Spring4” Bolt 0.25” DIA

Caster Wheel3” DiameterSwivel Action

Wheelhouse Assembly

Ash Cladding0.75” Thick

0.25” Steel PlateWelded Connections

16 GuageSteel Tubing1” by 1”

High StrengthCompression Springs

3” DiameterSwivel Caster Wheel

2.5” Long Bolts0.25” Diameter

D - BI-FOLDING DOOR WHEELHOUSE

Bolt AssemblyLock Nut1.5” Bolt 0.25” DIA

Bolt AssemblyLock NutCompression Spring4” Bolt 0.25” DIA

Caster Wheel3” DiameterSwivel Action

Wheelhouse Assembly

The bi-folding corner door required a unique design solution to allieviate the load placed on the primary structure. The weight of the Ash had to transfer to 3 hinges along the door frame and then to the stoop beneath the door. For this door system, students fabricated several custom made wheelhouses to distribute the load, streamline the door’s movement, and to help balance the overall load of the door.

4

5a-305

4a-305

a-306

exter ior ash cl adding

cor r ugated metal panels

cl t r oof panel

cl t wall panel

unl fab screen window

cl t f l oor panel

llaw metsbir malulg

pavers s l ab on grade

tre nch footi ng

unl fab. awning door

cl t wall panel

l ocking mechanism

GA Section A

GA Section B

Detialed Section CFirst Floor Plan

C

5’ 5’

PLAN AND WALL SECTION

South west view

West elevation - tool storage access panels on hydrualic openers.

Ash table and dowelled benches.

Interior looking north west