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town hall 2
PROF.
AMBER
BARTOSH
DEREK
A system of truss girders spanning the width of the site suspend programmatic volumes and connecting walkways which shift around a cental atrium. The volumes are constructed as rigid steel frames clad selectively in transparent, translucent and opaque material as required by the programs they contain. TOWN2HALL | 02
CHEN
AARON
GOLDSTEIN
LUIS
T
GRAVELEY
tension hangers, truss girders, lightweight frames, polycarbonate, suspended walkways
JR
view of meeting hall approach from central atrium with suspended walkways
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SECTION LOOKING EAST 1/16” = 1’-0” TOWN2HALL | 04
SECTION LOOKING SOUTH 1/8” = 1’-0” TOWN2HALL | 05
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SITE PLAN
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The town hall for Owego is envisioned as an urban microcosm which rescales, internalizes, and reenacts the interchange and activity of a town. Public functions are contain within stratified volumes which are suspended from a matrix of truss girders. A glazed ceiling canopy, perforated facade, and interior circulatory armatures are also hung from this structural system. Lighting conditions vary between spaces; the meeting room receives indirect reflected light from light monitors, light enters the atrium through a suspended fritted glass ceiling, and smaller volumes facing the street receive northern light filtered through a perforated screen. “Exterior� views join seemingly disparate and isolated spaces to one another. Due to the slippage and shifting of programmatic volumes, multiple spaces may be inhabited, both physically and visually, simultaneously.
STRUCTURAL AXONOMETRIC TOWN2HALL | 07
NORTHERN (FRONT STREET) ELEVATION
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SOUTHERN (RIVERWALK) ELEVATION
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UP
UP
UP
UP
UP
UP
OPEN TO BELOW
OPEN TO BELOW
UP
UP
BASEMENT PLAN 1/32” = 1’-0”
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GROUND FLOOR PLAN 1/32” = 1’-0”
OPEN TO BELOW UP
UP
UP
OPEN TO BELOW
UP
UP
UP
UP
UP
UP
UP UP
UP
UP
OPEN TO BELOW
UP
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OPEN TO BELOW
UP
OPEN OPENTO TO BELOW BELOW
OPEN TO BELOW
OPEN TO BELOW
UP
UP
UP
OPEN TO BELOW
SECOND FLOOR PLAN 1/32” = 1’-0”
UP
OPEN TO BELOW
THIRD FLOOR PLAN 1/32” = 1’-0”
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air intake exhaust pathway
MECHANICAL SYSTEMS Air is delivered into the atrium and adjacent spaces from a mechanical room in the basement. Ducts occupy the plenum between suspended volumes and travel underneath the spanning bridges, allowing for the placement of diffusers at multiple elevations. The meeting space is served by its own system whose equipment is located on the roof of the egress stair tower.
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CIRCULATION The town hall is served by two stair towers on at the Northwestern and Southeastern corners of the building. The Northwestern core contains an elevator with access to all floors. The cores double as structural elements, acting as rigid bracing elements. Primary circulation occurs on the stairs, ramps, and walkways in the central atrium. These circulatory elements terminate in balconies which overlook the atrium space. TOWN2HALL | 13
DAYLIGHTING AND SHADING Light is dealt with differently based on programmatic necessity. Working and learning spaces on the north side of the building receive diffuse northern light through the facade screen, and borrowed light from the atrium. The atrium itself and the spaces below are lit through a fritted glass ceiling canopy which minimizes heat gain while allowing light and views to the structure above. The meeting space on the southern end of the building is top-lit exclusively, with deep light monitors reflecting light into the space. The overhanging volume of the meeting space acts as a shading device, shielding the recessed patio and day-care from harsh sunlight and permitting glazing for views of the river.
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MODEL OF STRUCTURE AND ENVELOPE 1/8” = 1’-0”
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W12 COLUMN TRUSS GIRDER SUPPORT STRUT BOLTED STEEL CHANNELS TRANSVERSE BEAM
SHEET METAL PARAPET COPING
ROOFING MEMBRANE COVER BOARD
LAMINATED SAFETY GLASS
ROOFING BOARD INSULATION
ALUMINUM CLADDING
SUBSTRATE BOARD
ROOFING MEMBRANE COVER BOARD
METAL ROOF DECKING
ROOFING BOARD INSULATION SUBSTRATE BOARD
5/8" GYPSUM BOARD
LAMINATED POLYCARBONATE CEILING PANEL STEEL SHELF ANGLE
SHEET METAL PARAPET COPING
4" STEEL STUD
HSS FRAME PERFORATED STEEL CLADDING PANEL CLAMPED GLASS PANEL STEEL SUPPORT STRUCTURE FOR CLADDING
LAMINATED POLYCARBONATE PANEL
2" FIBER-REINFORCED PRECAST CONCRETE PANEL CLADDING CLIP
CONCRETE SLAB THERMALLY BROKEN GLAZED ALUMINUM CURTAIN WALL SYSTEM WITH HIGH-PERFORMANCE INSULATING GLASS STEEL MESH INFILL PANEL
STEEL DECK
6" STEEL STUD
2" STEEL STUD
STEEL TENSION HANGER 6" TUBULAR STEEL COLUMN
1" STEEL GRATE STAIR TREAD
HARDWOOD FINISH FLOOR
PLYWOOD SUBFLOOR
CONC FILL ON COMPOSITE STEEL DECKING
STEEL CHANNEL WITH RAILING AND HANGER CONNECTORS BOLTED TO WEB RIGID INSULATION ESTCODE
ESTCODE
INSULATED WINDOW SYSTEM W/ ALUMINUM MULLION
EXTRUDED ALUMINUM SILL EXTENSION 5/8" GYPSUM BOARD STEEL SOFFIT PANEL
SHEET METAL FLASHING VERTICALLY STACKED VENEER BRICK FLUID-APPLIED AIR AND WEATHER RESISTIVE BARRIER CAVITY DRAINAGE MATERIAL
NO. 5 STEEL REINFORCING BAR 2" EXTRUDED POLYSTYRENE INSULATION 2" CAVITY ADJUSTABLE MASONRY VENEER TIE CONC FILL ON COMPOSITE STEEL DECKING
WEEP VENT CONCRETE FOUNDATION WALL STAINLESS STEEL THROUGH WALL FLASHING SELF-ADHERING SHEET WATERPROOFING RIGID BOARD INSULATION
CONCRETE SLAB ON GRADE VAPOR RETARDER GRAVEL SUB-BASE
MOLDED SHEET DRAINAGE PANEL FOUNDATION DRAIN
SECTION THROUGH NORTHERN FACADE TOWN2HALL | 16
CLADDING CLIP
PRECAST CONCRETE SOFFIT PANEL
HAT CHANNEL @ 24" O.C. 8" CMU
STEEL SUPPORT STRUT
ESTCODE
SECTION THROUGH SOUTHERN FACADE
CUTAWAY MODEL OF MEETING SPACE 3/16” = 1’-0”
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BOLTED BEAM SPLICE CONNECTION SHOP WELDED BEAM-COLUMN CONNECTION STIFFENER PLATE GUSSET PLATE DOUBLE L6X4 TRUSS MEMBER DOUBLE C15 TRUSS CHORD W12 COLUMN
BOLTED COLUMN SPLICE CONNECTION
STEEL BASEPLATE ANCHOR BOLT GROUT BED CONCRETE FOOTING
TRUSS GIRDER-COLUMN CONNECTION TYPICAL TRUSS GIRDER TO COLUMN CONNECTION SCALE: 1" = 1'-0"
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DETAIL OF SUSPENDED WALKWAY
DETAIL OF MEETING HALL CHAIR 1-1/2" DIAMETER STEEL PIPE RAILING 2" STEEL T SECTION STEEL MESH INFILL PANEL 3/4" STEEL GRATE WALKING SURFACE
9/16" DIAMETER STEEL TENSION HANGER
MOLDED PLYWOOD BACK
TURNBUCKLE STEEL ANGLE
HANGER ATTACHMENT
L3X2 STEEL ANGLE 1/2" STEEL PLATE CONNECTOR
RUBBER GASKET
C8 STEEL CHANNEL STEEL T-SECTION
1/8" STEEL PLATE
STEEL PLATE STIFFENER
MOLDED PLYWOOD SEAT
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INTERIOR VIEW OF CEREMONIAL STAIR
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