Spring Presentation may 9th 2014 - PBL Labpbl.stanford.edu/AEC projects/Year...

Spring Presentation

may 9th 2014

CONCRETE

DESIGN

CHOSEN

Winter quarter decision matrix

General conditions

Campus placed in concavity between arms of a

sierra nevada mountain range, which can be

seen from 2nd

level in the buildings

Site Analysis

-40

-20

0

20

40

60

80

100

120

Jan

Feb

Mar

Ap

r

May Jun

Jul

Au

g

Sep

Oct

No

v

Dec

Climate data

Precipitation inches x10

Snowfall inches x10

Record high °F

Average high °F

Average temp °F

Average low °F

Record low °F

● Summer: hot days / cold

nights

● Winter: Cold, Snowfall

● Sunshine hours a year: 3650

● Very dry desert climate

● Santana winds - dust / heat

Climate background

- Slightly sloped terrain

- Water Table an Frost Line at 4’ under grade

- Heavy Earthquakes

Probabilities for the next 50 years:

> 95 % magnitude 5.0

~ 20 % Magnitude 7.0

Site Constraints

View 1 View 2

View 3

View 1

View 2

View 3

3

1

2

View 4

View 5 View 6

4

5

6

Double diamond footprint Position on the site

INSPIRATION CAME FROM THE SURROUNDING ENVIRONMENT

1. IDEA OF CLIMBING THE

MOUNTAIN….

REVERSED!

2. SO THE BUILDING GROWS UP WHEN

YOU CLIMB IT TO GET NICE VIEWS TO

THE MOUNTAINS

3. CRACKING THE

BUILDING IN TWO

SEPARATE

4. SPLIT LEVELS

That enhances visual

connections in the

builidng and allow for

the bigger clearance in

rooms

5. CREATING A LIGHT

TUNNEL IN THE HEART

Atrium provides even

more daylight

6. CONNECTING SPLIT

LEVELS BY ADA RAMP

so continuous carpet is

created within entire

building

Slipping Building Concept: Split Floor Ramp System

Two halves of the building slide and connections are detailed

to allow slippage during earthquake.

ASCE 7-10 Chapter 12.12.3

Building designed for 2% Story Drift

Top of building seismic expansion joint

→ requires 1’ joint minimum.

Stanford University - Center

for Clinical Science Research

Seismic Expansion Joint

http://mmsystemscorp.com/ejp/

Roof and Façade DetailingTeflon and Polished

Steel Sliders

1’ gap at roof

Linear interpolation of gap sizing

at different story levels

Slipping Building Concept: Detailing

35‘ RC Beam

24“ x 12“

Seismic Gap 1‘

Deflections

0.03 in

10‘‘ Slab

Ramp Consideration

Roof sliders

Connection Details

Bolted Connection

Open or Closed

Swaged Socket

Gusset Plate

welded to C-Channel

Ramp Consideration

Temporary formwork for ramp

construction

• Reduce VOC loads

• Remove CO2, Replacing it with O2

• People perform better in

environments with plants

• Reduce Stress

• Prevent Fatigue

HEALTHY LIVING

DIRTT BREATHE WALL

Life Cycle

Renewable

LocalRecycle

Thermafleece

- Insulating

wool batt

Modular

floor carpet

tiles

Fiber Optic Daylighting

Passive Dynamic Glazing

Fall

protection

gear

HandrailsTemporary

Gravel

cover

Site visualization with BIM

BASEMENT LEVEL

ENTRANCE LEVEL

Level 1.5

Level 2

Level 2.5

Level 3

Prefabricated aluminum façade

• Sustainable

technology

• 1/10 installation time

• 20% cheaper

Dirtt modular internal walls

• Corrosion resistant

alloy

• Surface is dirt-

repellent

Production Strategy

Landscaping

EVACUATION EXITS FROM BASEMENT LEVEL AND LEVEL 1

1378 k (SW-side) / 1655 k (NE-side)

Site Class B (Rock)

Dead Load

125 psf

115 psf

115 psf

115 psf

Live Load

30 - 100 psf

30 - 100 psf

40 - 100 psf

30 - 100 psf

Snow Load 15 psf

Airhandling Unit 1,5 kips

Water Cistern 10 kips

Superimp. Dead Load 25 psf

Solar Panels 10 psf

Loads

18‘ 2‘‘

16‘ 3‘‘

17‘ 4‘‘

12‘ 9‘‘

10‘ 5‘‘

19‘ 10‘‘ 14‘ 1‘‘ 21‘ 10‘‘ 19‘ 2‘‘

14‘ 0‘‘

17‘

16‘ 8‘‘

17‘ 4‘‘

10‘

14‘ 10‘‘ 8‘ 6‘‘ 16‘ 3‘‘ 18‘ 2‘‘17‘ 3‘‘

12‘‘ shear wall

12‘‘ x 12‘‘

Columns

Auditorium Side

Non-Auditorium Side

Floorplan: Basement

18‘ 2‘‘

16‘ 3‘‘

17‘ 4‘‘

12‘ 9‘‘

10‘ 5‘‘

19‘ 10‘‘ 14‘ 1‘‘ 21‘ 10‘‘ 19‘ 2‘‘

14‘ 0‘‘

17‘

16‘ 8‘‘

17‘ 4‘‘

10‘

14‘ 10‘‘ 8‘ 6‘‘ 16‘ 3‘‘ 18‘ 2‘‘17‘ 3‘‘

12‘‘ shear wall

12‘‘ x 12‘‘ columns

12‘‘ x 12‘‘ slanted columns

Cantilever (4‘ / 8‘)

Cantilever

(6‘ 6‘‘ / 10‘ 6‘‘)

PT Girders

20‘‘ x 36‘‘

15‘‘ x 30‘‘

Floorplan: 1st

Floor

banded tendons

Distributed tendons

Tendon on Gridline 3

7‘‘ Slab

5 ksi NW-Concrete

Tendon between Gridline C and D

Tendon Layout: Non-Auditorium Side

banded tendons Distributed tendons

Long term Loss 13,5%

Tendon on Gridline 3

Tendon Layout: Auditorium Side

[in]Terrace Level

Class U

3RD

Level

0.22 in

0.20 in

0.35 in

0.20 in

Slab design: Deflections

Halfen HDB Software Tool

European Technical Approval ETA 12/0454

[in]

28

1263

3

3 6 3

Max P = 106 kips

Shear and Punching Reinforcement

7‘‘ slab

12‘‘ x 12‘‘ Column

9 #9

#5 @ 8‘‘

#6 @ 10‘‘

Punching Reinforcement not shown

#5 @ 8‘‘

#6 @ 10‘‘

Additional Wall Shear

Reinforcement

Slab – Column Detail

Slab – Wall Detail

Column Reinforcement And Connection Details

Max P = 90 kips

7‘‘ slab

12‘‘ x 12‘‘ Column

4 #6

#5 @ 8‘‘

#6 @ 10‘‘

Additional Reinforcement

3 #5

Slab – Slanted Column Detail

Column Reinforcement And Connection Details

2 independent Models

Shear Wall Layout

Auditorium Side

Non-Auditorium Side

Etabs – Linear Model

X-Direction Y-Direction

max 0,3% max 0,9%

Non-Auditorium Side - Maximum Story Drift

max 1,7% max 2,0%

X-Direction Y-Direction

Auditorium Side - Maximum Story Drift

Foundations: 6“ Slab on grade

36“ x 36“ strip footing

6‘ by 6‘ Footings (1,5‘ deep)

12“ x 12“ Columns

8 #9 Bars

Maximum Force

440 kips

Etabs – Member Forces (Axial)

Etabs – Nonlinear Static Pushover Analysis

Nonlinear PMM Hinge

Hinges are calculated

from section design

Etabs – Nonlinear Model

Non-Auditorium Auditorium

Etabs – Nonlinear Model

Non-Linear Model

0,66 s0,63 s

Linear Model

0,41 s 0,36 s

Etabs – Comparison Mode shapes

very little nonstructural damage for 2500 year earthquake

safe for use immediately following the earthquake

Etabs – NSP Results

Accelerometer

Back Calculation of Building

Response

Structural Health Monitoring

Wall Hung Radiators

− No impact on room

height

− More responsive

than radiant floor

heating

− Improved thermal

comfort

HEATING

Cooling

Radiant ceiling panels

− Low risk of draft

− Require less

overhead space

than chilled beams

− Higher capacity

compared to

radiant floor

cooling

− Sized for minimum ASHRAE requirements

− Auditorium – Personalized ventilation.

UFAD PERSONAL VENTILATIONAHU 2

2750 CFM

AHU 1

4100 CFM

Ventilation

high clearance for

occupant comfort

− PT Slab: 7”

− Ducts: 8”

Floor Sandwich

Interior AHUs

− No rooftop air-handlers

− Possible with the 10ft projection

Basement Level

Top Floor

Solar PV Panels

− Panels: 171

− Total capacity:

56 kW

− Annual Production:

84,200 kWh

− Annual Energy Savings:

$23,370

-$200,000

-$150,000

-$100,000

-$50,000

$-

$50,000

$100,000

$150,000

$200,000

$250,000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Years

Trade-Off Analysis : PV-Panels

− 4% Discount Rate

− Breakeven point at 12 years

Solar Economics

− Building Responsiveness – Circadian Rhythms

− Estimated Energy Savings: 800 kWh

Parans Tracker

Fiber Optic Lighting

Sustainable Target Value: Water Challenge

− 6 Tidal Cells

− Sized above 5%

of building Area

Living Machine

− Method of accounting for the Living Machine

Water Target

Ground Source Heat Pump

Basement

Level

MEP Educational Room

Small Cistern

− 5’ Diameter

− 7.5’ Height

− 1100 Gallons

Rainwater Harvesting

Drinking Fountain

−Services students

after recent rainfall

Reverse Osmosis

−Removes Chemicals

−Purifies on-demand

Reverse Osmosis Purification

Energy Tracking Board

Living Machine UV

Disinfection

MEP Education Room

−In place of roller shades

−Less maintenance

−Improved responsiveness

Passive Dynamic Glazing

Passive Dynamic Glazing

0%

100%

200%

300%

400%

500%

600%

700%

February March April May

Percent of

Target

Global Warming

Potential (CO2-eq)

Energy (MJ)

Water (kg)

Sustainable Target Value Progression

−February: Initial Material Estimates

−March: Add Energy Consumption

−April: Refine Design, Add Materials

−May: Account for Living Machine, Adjust PVs

April 25

February 7 March 14

May 8

H2O H2O

H2O H2O

GWP GWP

GWPGWP

Energy Energy

EnergyEnergy

Evolution of the Sustainable target Value

Sustainable Target Value: Results

EROSION & DUST CONTROL PLAN

SITE LAYOUT & LOGISTICS

MATERIAL SUPPLIERS

TOWER CRANE MOBILE CRANE

Space Available

Operating Efficiency

Price

Manageability

Mobilization

FINAL DECISION:

MOBILE HYDRAULIC ALL

TERRAIN 30 TON CRANE

WITH 101’ BOOM

OTHER EQUIPMENT

• JOHN DEERE DIESEL

POWERED EXCAVATOR.

BUCKET CAPACITY 0.79 CY

• JOHN DEERE DIESEL

POWERED DOZER. BLADE

CAPACITY 2.9 CY

• JOHN DEERE DIESEL

POWERED GRADER. BLADE

PULL 28,990 LBS

CONSTRUCTION EQUIPMENT

ERECTION SEQUENCE

SCHEDULE

May June July August OctoberSeptember November December January February March

Construction Starts Construction Ends

Computer Lab

+HVAC

ELECTRICAL

INTERIOR FINISHES

PLUMBING

EXTERIOR FINISHES

LANDSCAPING

SUBMITTAL

PROCUREMENT

SITEWORK

FOUNDATION

EXCAVATION

FRAMING

Building Close-in

LOCATION BASED SCHEDULE

May June July August September October November December January February

March

LVL 1

LVL 1.5

LVL 2

LVL 2.5

LVL

3

INT

PLUMB

ELEC

EXT

HVACB

LVL

LVL

1

LVL

1.5

LVL

2

LVL

2.5

FOUNDATION

EXCAVATION

LANDSCAPING

EXTERIOR

FURNISHINGS

LVL

CLOSE

IN

LVL

CLOSE

IN

LVL

CLOSE

IN

LVL

CLOSE

IN

LVL

CLOSE

IN

LVL

CLOSE

IN

INT

PLUMB ELEC

EXT

HVAC

INT

PLUMB ELEC

EXT

HVAC

INT

PLUMB ELEC

EXT

HVAC

INT

PLUMB ELEC

EXT

HVAC

INT

PLUMB ELEC

EXT

HVAC

OVERALL MAN-HOUR DISTRIBUTION

CREW 1

BASEMENT

LVL

(AREA A)

CREW 1

LVL 1.5

(AREA A)

CREW 2

LVL 1

(AREA B)SHELL

SPLIT LEVEL

CREW

DISTRIBUTION

FACADE

SPLIT LEVEL

CREW

DISTRIBUTION

CREW 1

LVL 1.5

(AREA B)

CREW 2

LVL 1

(AREA A)

CREW 2

LVL 2

(AREA A)

RS Means

Bare

Estimate

Assembly

Cost

Historic

comparison

Unit CostModify

Estimate

SYNCED BIM

MODELS

WEEKLY

QUANTITY

EXTRACTION

USING

INNOVAYA

EXPORTED

INNOVAYA

TAKEOFFS TO

TVD

WHY INNOVAYA

• Easy To Use

• More Reliable Quantity

Takeoffs

• Avoids Repetition

WINTERCOST ESTIMATING METHODOLOGY

SPRING

BATCH QUANTITIES EXPORTED TO TVD

Innovaya

DIRRT SOFTWARE

TVD

FINAL

ESTIMATED

VALUE =

$ 9,790,000

General Requirements11%

Concrete17%

Metals10%

Finishes7%

Plumbing/Mechanical/Electrical

20%

Earthwork5%

Special Construction

30%

CONCRETE

CSI Masterformat 2010 ESTIMATED VALUE TARGET VALUE VALUE DELTA

TOTAL $ 9,787,424 $ 9,600,000 $ (187,424)

General Requirements $ 1,062,124 $ 1,152,000 $ 89,876 Concrete $ 1,624,898 $ 1,692,000 $ 67,102 Metals $ 1,035,600 $ 672,000 $ (363,600)Finishes $ 652,378 $ 600,000 $ (52,378)

Plumbing/Mechanical/Electrical$ 1,911,700 $ 1,968,000

$ 56,300

Earthwork $ 453,332 $ 468,000 $ 14,668 Special Construction $ 3,047,391 $ 3,048,000 $ 609

COST ESTIMATE

BIM MANAGER

ARCH

MEPSE

BIM ORGANIZATION

Building Coordination

Team Process Improvements from winter quarter

- More subgroup meetings

- Enhanced and efficient communication

Model

integration

& clash

tests

Setting

rules &

saving

viewpoints

with

comments

Clash

detection

meetings &

resolutions

Clash Detection

Façade – CM/ARCH Ramp – SE/ARCH

- Synchronous Graphic Collaboration

- simple Sketches enhance interdisciplinary

Understanding

- A team is smarter than the Individual Member

Key Skills Demonstrated

Graphic communication on key challenges

Collaboration Staying on track

KEY LESSON LEARNED = TRANSPARENCY is key

Lessons Learned

“people are more lovable in person”

“learn the most when other disciplines

answer your questions”

“you never know what your cyber friends

are doing if their web-cam is off”

“patience does not solve everything”

“there is always something someone did not

tell you”

“talk with sensitivity and compromise”

Thank you owners, mentors,

and Renate! Danke!

Dziękuję bardzo!