presentation to section 106 consulting parties … · 2020-04-09 · presentation to section 106...
TRANSCRIPT
060929 Sect 106 - 1
PRESENTATION TOSECTION 106 CONSULTING PARTIES
SEPTEMBER 29, 2006
060929 Sect 106 - 2
AGENDA
1. Welcome
2. Review of Agenda
3. Museum Experience – WTCMF4. Memorial/Museum Design Update – DBB
a. North and South Tower Plansb. Footings
5. Access Considerations – DBBa. Slurry Wallb. Perimeter Box Beam Column Remnantsc. Consultation
6. Site Status – DBBa. Conditions Survey Statusb. Footprint Slab Remnantc. Construction Update
7. Vesey Street Stair Remnant Update – PANYNJ8. Artifacts Update – PANYNJ9. Next Steps
060929 Sect 106 - 3
Exhibition Sequence
060929 Sect 106 - 4September 5, 2006
Building the Memorial and MuseumBuilding the Memorial and Museum
060929 Sect 106 - 5
Aerial View of Memorial Quadrant
060929 Sect 106 - 6
The Memorial: Reflecting Absence
060929 Sect 106 - 7
The Memorial Plaza
060929 Sect 106 - 8
2
Cross-section of Memorial and Museum
060929 Sect 106 - 9
Memorial Museum Exhibit Level
OVERLOOK
060929 Sect 106 - 10
Memorial Museum Descent and Overlooks
OVERLOOK
060929 Sect 106 - 11
Memorial Museumat Bedrock
060929 Sect 106 - 12
060929 Sect 106 - 13
Design Update
060929 Sect 106 - 14EL.+242’: “BEDROCK” LEVEL
Key Responses:Minimized structural impactfrom columns.
Eliminated shear wallsfrom footprint areas.
Relocated mechanicalequipment.
Reorganized egress stairlocations.
060929 Sect 106 - 15
PLAN:SEPTEMBER 14, 2005
BEDROCK LEVEL: EL. +242’MEMORIAL MUSEUM SCHEMATIC DESIGN UPDATE
MUSEUMMEMORIALFAMILYMECHANICAL RM. AND EGRESS STAIRSOTHER PROJECTS
PATH TERMINAL
CHILLER PLANT
PLAN:AUGUST 31, 2006
CHILLER PLANT
MEMORIAL MUSEUMEGRESS STAIRSOTHER PROJECTS
PATH TERMINAL
060929 Sect 106 - 16
North Tower Construction
060929 Sect 106 - 17
North Tower Construction
85 ft133 ft
060929 Sect 106 - 18EL.+242’: “BEDROCK” LEVEL
North Tower Footprint South Tower Footprint
AREA OF TOWER CORE FOOTPRINTS
060929 Sect 106 - 19
Access ConsiderationsSLURRY WALL
060929 Sect 106 - 20
Key Design Issues:Long term solution.
Constructability.
Preservation.
Visitor experience.
Waterproofing.
Cost.
060929 Sect 106 - 21
Truss / Liner Wall / Counterfort Option
PREVIOUS SLURRY WALL OPTIONS (presented January 11, 2006)
Truss / Full Counterfort Option
060929 Sect 106 - 22
SLURRY WALL OPTION 1:LINER WALL / GLASS ENCLOSUREEXPOSED WALL = 20 ft x 48 ft
SLURRY WALL OPTION 2 :LINER WALL / OPEN PANELEXPOSED WALL = 20 ft x 58 ft
060929 Sect 106 - 23
SLURRY WALL OPTION 1:LINER WALL /GLASS ENCLOSURE
SLURRY WALL OPTION 2 :LINER WALL / OPEN PANEL
Option 1 Key Design Issues:Long term solution. PANYNJ Review Pending
Constructability. Resolved
Preservation. Consultation Pending
Visitor experience. Consultation Pending
Waterproofing. Resolved
Cost. Cost Estimate Pending
Option 2 Key Design Issues:Long term solution. PANYNJ Review Pending
Constructability. Resolved
Preservation. Consultation Pending
Visitor experience. Consultation Pending
Waterproofing. Resolved
Cost. Cost Estimate Pending
060929 Sect 106 - 24
Access ConsiderationsPERIMETER BOX COLUMNS
060929 Sect 106 - 25EL.+242’: “BEDROCK” LEVEL
Perimeter Slab Remnant Accessible at “Bedrock” LevelPerimeter Box Column Remnant Accessible at “Bedrock” Level
PERIMETERSLAB REMNANTACCESSIBLE AT“BEDROCK” LEVEL
PERIMETERBOX COLUMN REMNANTACCESSIBLE AT“BEDROCK” LEVEL
PERIMETERSLAB REMNANTACCESSIBLE AT“BEDROCK” LEVEL
PERIMETERBOX COLUMN REMNANTACCESSIBLE AT“BEDROCK” LEVEL
060929 Sect 106 - 26
Western Perimeter of North Tower, July 27,2005
Meaningful Access
Key Considerations:Preservation.
Visitor Experience.
Accessibility.
Safety.
060929 Sect 106 - 27
REMNANT
4” Thick Topping slab outsideof tower footprint
RAISED WALKWAYBETWEEN COLUMN REMNANTS
REMNANT
RAISED WALKWAYBETWEEN COLUMNREMNANTS
TOPPING SLAB
060929 Sect 106 - 28
Perimeter Slab Remnant4” topping slab
Perimeter Box Column RemnantsRaised Walkways (Locations TBD)
Recommended Access For AllAvailable Box Columns
060929 Sect 106 - 29
NORTH TOWERFOOTPRINT AREA
North Tower Excavation
South Tower Excavation
SOUTH TOWERFOOTPRINT AREA
Additional ProposedTreatment of Box Columns inSelect Areas
060929 Sect 106 - 30“BEDROCK LEVEL” - EXCAVATIONS
South Tower Excavation Area
North Tower Footprint South Tower Footprint
North Tower Excavation Area
Exposed Remnant
Exposed Remnant
Additional Proposed Treatment of Box Columns in Select Areas
060929 Sect 106 - 31“BEDROCK LEVEL” - EXCAVATIONS
Typical Excavated Remnant
Excavated Earth
Exposed Remnant
Excavated Perimeter Slab
060929 Sect 106 - 32“BEDROCK LEVEL” – NORTH TOWER EXCAVATION
1. North Tower Excavation Area Plan
2. North Tower Excavation Area Section
NORTH TOWERFOOTPRINT AREA
WALKWAY
060929 Sect 106 - 33“BEDROCK LEVEL” – SOUTH TOWER EXCAVATION
1. South Tower Excavation Area Plan
2. South Tower Excavation Area Section
SOUTH TOWERFOOTPRINT AREA
WALKWAY
060929 Sect 106 - 34
Raised Walkway:
Recommended Access For AllAvailable Box ColumnsProvides long term preservation.
Respectful and meaningful Visitor experience.
Resolves issues of accessibility and safety.
Areas of Excavation:
Proposed Treatment of BoxColumns in Select Areas
060929 Sect 106 - 35
SITE STATUSCONDITIONS SURVEY STATUS
060929 Sect 106 - 36
Survey dated May 3, 2006
Site Survey
Additional Information
North Tower Footprint:4 Core Columns Located
14 Steel Base Plates Located
South Tower Footprint:6 Additional Core Columns Located
(18 total located)
5 Steel Base Plates Located
060929 Sect 106 - 37
Site StatusFOOTPRINT SLAB
060929 Sect 106 - 38EL.+242’: “BEDROCK” LEVEL
Footprint Slab: Protective Membrane and Topping SlabTypical Museum Floor: 4” Topping Slab
FOOTPRINT SLAB:PROTECTIVEMEMBRANE ANDTOPPING SLAB
TYPICAL MUSEUMFLOOR: 4” TOPPINGSLAB
EXPOSEDPERIMETER SLABREMNANT
060929 Sect 106 - 39FOOTPRINT SLAB: Section & Detail
CONCRETE NOSE4” CONCRETE SLABPROTECTION BOARDWATERPROFFING MEMBRANESLAB TO REMAIN
BOX BEAM AND PERIMETERSLAB REMNANTS
TYPICAL 4” MUSEUM TOPPING SLAB
TYPICAL MUSUEMTOPPING SLABBOX BEAM AND PERIMETER SLABREMNANTFOOTPRINT SLAB
060929 Sect 106 - 40FOOTPRINT SLAB: Details
BOX BEAM AND PERIMETERSLAB REMNANTS
SLAB REMNANTBELOW
4” CONCRETE SLAB
4” CONCRETE SLAB
VISIBLESLAB REMNANT
DENSE FOAMPROTECTION BOARD
DENSE FOAMPROTECTION BOARD
060929 Sect 106 - 41
FOOTPRINT SLAB REMNANTS
North Tower Footprint South Tower Footprint
EL.+242’: “BEDROCK” LEVEL
060929 Sect 106 - 42EL.+242’: “BEDROCK” LEVEL
PROPOSED SLAB TO REMAIN IN SITU
North Tower Footprint South Tower Footprint