Arch5120 Spring 2014 kurlbaum bgreer edame

Connect Split + Splay Subtract Pin

Boston University Common + Urban Ecological Institute

Benjamin Greer + Elizabeth Dame

IBS Contents:

Statement | Project Numbers 3Model Photos 4-6Sketches 7Future Scenario 29-37Construction Assembly 50-62Comfort Strategy Diagram 67Integrated Systems Diagram 68-69Wall Section 87Peel Away Axon 88-91Sections 64-66, 71-81Plans 83-85

The site is situated next to a heavily traversed yet under-utilized intersection. There is no com-munity engagement, it is not profitable, and it suffers from a polluted ecology. Our proposal ad-heres to two scales of integration to address these problems. At the scale of the city, our design strategy is to invest in the intersection. The interconnection of community, the private sector, BU as an institution, and ecology are crucial for the site’s successful remediation and development. Any proposal must coordinate these separate interests for a thriving system. At the scale of the building, the interior grain of program must be allowed to change within a simple structural sys-tem that remains constant. Multi-functional infrastructural components can be designed to ac-commodate both utilitarian and programmatic uses while anticipating future modifications.

Site: 70,000 SFGround Floor: 17,000 SFMain Floor: 24,800 SFTotal SF: 41,800 SFFAR: .6

Statement:

Numbers:

ResearchProblem | StrategyPhasingUrban ScaleBuilding Scale

Massachusetts Watersheds Charles River Watershed

Rainfall42”

Evapotranspiration15”

Runoff10”

Ground Water Recharge17”

Watershed InfoArea 308 Miles/SqTowns 35Wetland 8,000 Acres

Charles River InfoLength 80 milesHeight 350’Dams 20

Echo LakeHopkington

Upper Basin

Middle Basin

Lower Basin

40%

24%

36%

* 1” of rain across the entire watershed produces 5,352,596,480 gallons of water 64% of that (3,425,661,747 gallons) makes it to the Charles River

Charles RiverDam

Sub-Watershed

Watershed Outled

Combined Sewer Overflow

Watershed Boundary

1890 Shoreline

1630 Shoreline

Sub-Watershed

A B C D EDry-weather portion

Stormwater portion

A- Upstream of Watertown damB- Laundry Brook subbasin C- Faneuil Brook subbasinD- Muddy River subbasinE- Stony Brook subbasin

Fecal Coliform Bacteria

Phosphorus

The Site

Drainage Outflow

87%

67%

99%

93%

81%

53%

57%

21%

94%

40%

45%

15%

OverallEPA RatingsIn The Charles

Dry Weather Wet Weather

2012 B+

1996 C-

Boating

Boating

Swimming

Swimming

Tufts

Bentley Brandeis

Harvard

Harvard

M.I.T.

BU

N.E.U.

B.C.

UMass

Site

Muddy RiverWatershed

Charles River

BU

Outflow / CSO

Subwatershed Area

Esplanade

City Scale

I-90 and Rail Lines: Existing

I-90 and Rail Lines: Future

Connect future system to Comm Ave.

*Harvard University land open for development

Boston University Campus

West Campus

East Campus

South Campus

CommonwealthLanding

Bike Volumes - Peak Hours Morning - 659 Afternoon - 641

Pedestrian Volumes - Peak Hours Morning - 1,032 Midday - 1,630 Afternoon - 2,042

Vehicle Volumes - Daily 36,300

MBTA Daily Passenger Boardings BU West - 899 Central - 2,524 Bus 57 - 1,661 St Mary’s St - 992 University Rd - 4 Amory St - 237

47

CT2

57

Am

ory

St.

St. M

ary’s

St.Mou

ntfo

rt S

t.

Uni

vers

ity R

d.

Storrow Drive

Soldiers Field Rd.

I-90

Commonwealth Ave.

Esse

x St

.

Intersection Analysis

ProgramInstitutionalCivicPrivateResidentialIndustrial

Boston UniversityCivic / GovernmentPrivate InterestCommunity groups, NGOsResidents / StudentsTourists

College attendence numbersLocal and regional masterplansZoning and CodeEnvironmental concernsPopulation statisticsDemographicsReal estate trends

AcademiaBuilding / ConstructionEcology / LandscapeUrbanism / PlanningDevelopmentPolitics

Extereme weather eventsEconomic booms, depressions, and growthPopulation shifts

Stakeholders

Trends

Disciplines

NoCommunityEngagement

Not Profitable

PollutedEcology

Variety ofPublic Spaces

IncreasedDensity

Site asRemediator

PlazasAccess toRiverfront

CommunityProgram

Buildingas Income

Plan forExpansion

CommunityProgram

UrbanWild

CSO landscape

filter

GreywaterWetlands

Extremes

Research ProblemHighly traversed yet under-utilized intersection.

Invest in the Intersection.Solution Strategies

Urban, Economic, Ecology

ResearchProblem / StrategyPhasingUrban ScaleBuilding Scale

Responsible Land Banking

Scenario 1

Urban Ecology Research Institute

Scenario 2

Commercial Rent in Boston

Structure

BU Expansion Needs+ Income over time= Project is Viable

Capital Injection toDevelop the Land

No Current BU Need

BU Receives Steady Income

Lease Out the Space

Intersection BecomesMore Valuable

Increased PropertyValues Around BU

Local BusinessesBenefit

BU Owns

LandUnvaluableValuable

$46 per square foot a year (average)

35,000-40,000 rentable sq. ft.

$1,610,000 - $1,840,000 Yearly Income

Local Comparison:1079 Comm. Ave$40 / sq ft

GridRepititious structural bay allows easy partitioning of varying scaled spaces. “Feet”Heavy specialized foundations in feet in anticipation of future vertical expansion.

Land Value Comparisons

Utilities

Site

Our SiteBU Academy855 Comm. Ave871 Comm. Ave881 Comm. Ave704 Comm. Ave

Land Value

$798,800 $4,071,300$11,694,200$4,932,800$5,876,200$2,210,600

Cost/Square Foot

$21.70$47.17$154.22$118.81$226$341

Infrastructure cores puncture storage spaces below and house utility and HVAC services. Maintenance personnel are afforded constant access to main ducts, valves, electrical etc. These cores can double as break or conference rooms.

Cores are located to allow expansion upward to service a future tower.

Resiliency in Extreme: Economic Boom vs. RecessionLimited job options College Attendance Increases Space Taken Over for BU OperationsRecession

Growing Businesses Rent Prices Increase BU has Higher Income Future BU DevelopmentBoom

Structure Lab ModuleUtilities

Performative Landscape

Increased Funding Research

Viewable to Public

Increased Awareness

Educate the Public

Academic Study

Increased Funding

Viewable to Public

Increased Awareness

Educate the PublicIncome andReputation for BU

Attracts MoreScience Students

BU BecomesResearch Leaderin the Discipline

GridRepititious structural bay allows easy partitioning of varying scaled spaces. “Feet”Heavy specialized foundations in feet to house and support wet-labs VibrationVibration-sensitive equipment located on grade-support slabs.

Adjacent spaces service the teaching labs off the central corridor. Infrastructure cores puncture research labs and house large utility and HVAC services. Maintenance personnel are afforded constant access to main ducts, valves, electrical etc without having to enter the lab. These cores can double as rooms where large common lab equipment i.e. freezer rooms can be located.

30’

12’

10’ SupportMod

ular

Exp

ansio

n

Resiliency in Extreme: 100 Year StormBuilding is Elevated Crucial Equipment is within Concrete Cores

Second Fr. “Served Space” 15’ above GroundMove equipment up through cores to higher level

Flood

Active WetlandsSidewell Friends School6,300 sq. ft. of wetlands treats 3,000 gallons a dayWater circulates through wetlands for3-5 days before reuse in the building92% yearly savings

Boston Common Wetlands40,500 sq. ft. of wetlandsEstimated to treat up to 19,285 gallons of water a day

BU Research2012 - BU received $273 million in federal funding for research + training

ProposedEcologyEnvironmental Biology

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value

Base SiteUrban

Phase: 0

Building

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value

Phase 1 Tier 1

Main Drain Pipe

Tier 2Tier 3

Water Filtration Strategy

Urban

Phase: 1

CSO Strategy

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value

Rentable Parcels

Circulation | Breakout

Commercial Incubators

Storage | Bathrooms

Infrastructural Cores

Community Program

Cores House Shared Amenitiesie Conference Room, Break Rooms

Mechanical

Deliveries

Restaurant | Food Court

Phase 2Urban

Phase: 2

Building

Phase 3

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value


Storage | Bathrooms


Community Program

Main Rentable Space

Single Tenant

Cores House Building Amenities

Of�ces

Open Floor Plan Work ZoneCommunity “Living Room”+ Event Space

Of�ces

Mechanical

Deliveries

Urban

Phase: 3

Building

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value

Rentable Parcels


Transition to Labs

Storage | Bathrooms


Community Program

Research Lab

Teaching Lab

Conference Room Core

Kitchen Core

Research Lab Core

Mechanical

Deliveries

Extension of BUStudent Center

Phase 4Urban

Phase: 4

Building

Phase 5

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value


Community Program

Of�ces

Teaching Lab

Research Lab


BU Lab Facility

Gallery of Research

Cores Service Research Labs

Of�ces

Mechanical

Deliveries

Urban

Phase: 5

Building

Phase 6

Civic

Program Economics

Institutional

Commercial

Laboratories

Ecological

Student Enrollment

Recycled Water

Research Funding

Yearly Rent Income

Land Value

BU Program


Vertical Expansion

Potential Dorms, Classrooms,Additional Labs

Cores Grow to Service Tower

Urban

Phase: 6

Building

Final Axon

0’ 50’ 100’ 200’ 300’

FutureDevelopment

Parcel

Student Center

LibraryLaw Tower

Air Rights Parcel # 2

New Building

FutureDevelopment

BU WEST

BU CentralTower

Urban Wild

GreywaterTreatment

New Quad

Air Rights Parcel # 3

FutureDevelopment

Parc

el

Boston UniversityCommon

Urban Common Concept

Typical Collegiate Quad Urban Collegiate Common

1- Urban Wild 2- Riverfront

3- Plaza 4- Quad

Boston University Common

1

2

3

3

44

2

View Across Plaza

View of “Bolt” Across Quad

Connect Split + Splay Subtract Pin

Insulated CLT Panels

Structural Grid Envelope Flexibility Sectional Variety Infrastructural Pins Wood + Concrete + Steel

Glu-lam Post + Beam Window CLT Flooring ConcreteInfrastructural Cores

Perimeter Steel TrussInner Steel Trusses

Components

Why CLT Panels?

Material Source

Construction Method

Fire Resistance

Acoustics

Environmental

Composed of several layers of boards stacked crosswise and nailed together. The wood is sourced from sustainably managed forests. Fast-growing softwoods not traditionally used for structural purposes are replaced with seedlings after being felled for materials. The forest ecology is maintained with cyclical replanting.

Because they are a prefabricated building system, CLT structures are quickly erected in the �eld with a small crew workers. The 8 CLT �oors of the Stadhaus in London were constructed in one month with only 4 workers. This is a huge time saver which saves developers and owners money.

CLT’s have been tested for �re resistance, and prove to act as heavy timbers in �re. A char layer builds up on the outer layers of the thick panels, allowing the inner layers of the panels to retain their structural capacities for 2-3 hours.

Wood has wonderful insulating properties, both thermal and acoustical, and the many layers of wood in CLT panels reinforce this material quality. This project’s �oor assembly of 6” of CLT boards, 3” of rigid insulation, and 3” of concrete with hydronic radiant �ooring perform extremely well acoustically. Code dictates that the minimum Sound Transmission Class, which deals with airborne sound, is 50 for �oors. This project’s �oor assembly’s STC is 64. Code dictates that the minimum Impact Insulation Class, which deals with structure-borne sound, is 50 for �oors. This project’s �oor assembly IIC is 72.

Wood is a far more environmentally friendly building material than steel or concrete. Wood production has lower air and water toxicity indexes, produces less solid waste, and has signi�ciantly lower embodied energy than steel or concrete (53% less and 120% less, respectively). The sustainable forests which the material is sourced from are also carbon sinks. The wood products themselves store carbon. One cubic meter of wood can sequester 1-1.6 tons of carbon. These enviromental bene�ts recommended wood as the primary structural material.

24’

3” Concrete PourRadiant Coil

24” Glulam

CLT Panel

Rigid InsulationCLT Panel

24’

6’ 12’

Structural Assembly

Construction Assembly

1: Plaza, Excavate Site, Retaining Walls,

2: Geothermal, Plant Forest, Program Plaza

3: Concrete Footings/Cores

4: Ground Floor, Pierce Bridge with Trusses

5: First Floor Framing, Temporary Bridge

6: Second Floor

7: Second Floor Framing

8: Roof / Connection to Esplanade

9: Build Wetland Tiers

10: Flood

11: Outposts

Full Buildout

View From Plaza Across Wetlands

Structure Geothermal Shading

Natural Ventilation Water Mitigation Evaporative Cooling

w

Phase 1

Holding Tank

Phase 2

Phase 3

Phase 4

Polluted Air

Shallow Ground Source LoopHeatPump

EVAPORATIVE COOLING

Natural Ventilation

Enlarged Foundations for Future Vertical Expansion

Ground as Insulation

I:90

Excavated Soil from theCreation of Wetlands

Forest Captures and CleansExhaust Air From Highway

Phase 1

Holding Tank

Phase 2

Phase 3

Phase 4

Polluted Air

Shallow Ground Source LoopHeatPump

EVAPORATIVE COOLING

Natural Ventilation

Enlarged Foundations for Future Vertical Expansion

Ground as Insulation

I:90

Excavated Soil from theCreation of Wetlands

Forest Captures and CleansExhaust Air From Highway

Geothermal Shading Natural Ventilation Water Mitigation Evaporative Cooling

w

D

UU

D

U

N 1’ = 1/16”

Second Floor

Window Wall

Skylight

57’

100’

U

U

U

UU

U

N1’

= 1

/16”

Firs

t Fl

oor

Ground Floor Plan

D

UU

D

U

N1’

= 1

/16”

Seco

nd F

loor

First Floor Plan

N1’

= 1

/16”

Roof

Roof Plan

View From Roof

1

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1011121314151617181920212223242526272829303132333435363738394041424344454647

SkylightRecessed Mullion1’ Concrete Core6“ Light Seam1’ Planting Layer on 1/4” Filter Fabric1” Drainage Gravel on 1/4” Filter Fabric3” Rigid Insulation on 1/4” Root Barrier Membrane+ 1/2” Water Proo�ng Membrane6” Cross Laminated Timber (CLT) Structural Roof PanelMechanical Ducts and Pipe Lines for Research LabMaintenance CatwalkFloor Recessed into Concrete Core6” Structural Concrete SlabConcrete Core FootingVentilation Duct6” Light Seam3” Non-structural Concrete Slab as Thermal MassHydronic Radiant Floor Coils3” Rigid Insulation6” CLT Floor PanelSteel Bracket Connecting Glu-lam Beam to Concrete WallGlu-lam BeamFlinch Plate Connecting Glu-lam Beam to CLT PanelSteel Plates down-bolt to connect Floor Panel to Wall Panel1’ x 12’ Structural CLT PanelL-Brackets Connect Wall Panel to Floor PanelLight SeamSteel Plate Connects Concrete Beam to Concrete CoreConcrete BeamLight Concrete FootingGlass GuardrailWood Panel FasciaRoof MembranesSteel C-channelBalcony Glazing with Door + Operable WindowsGlass Guardrail in Inset MullionMetal Cap Below InsulationGlazing with Operable Windows6 Inner 1“ Structural CLT Layers3” Rigid Insulation3 Outer 1” Facade Layers of CLT1‘ x 12’-6” Structural CLT PanelOperable Windows11’ x 12’ GlazingFlinch Plate Connecting CLT Panel to Concrete FootingBiology PondGround

Assembly

1

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4

5

6

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Column to Beam

A - Beam to Concrete Core

B - Panel to Foundation

Interior View

Boston University Common

Urban Ecological Research Institute

Arch5120 Spring 2014 kurlbaum bgreer edame

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