RIDGE TEAM

Spring Presentation

TEAM MEMBERS

Architect :Amy Wang

Stanford University

Structural Engineer :

Per Karlsten KTH, Sweden

Construction Manager :

Kostas Dimitros

Stanford University

Apprentice:

Lars Keim

FHA, Switzerland

Owner :Peter Demian

SITE

Site Location: Lake Tahoe Area, California

Plentiful Sunshine

Heavy Winter Snow

Steel Acoustic ProblemsConstruction time

Fire ProtectionLight structureSteel

Concrete/Glass interactionAcoustic/FireConcrete

•Extensive use of glass•Tight classrooms•Lack of natural light in basement level

•Private and public outdoor gathering spaces•Open office plan

Concept 2

Concrete/glass interactionFew Vibration ProblemsConcrete

•Extensive use of glass•Expensive Cantilever

•Curved glass and atrium to provide abundant natural light•Short Construction time•Lower cost – use of prefabrication

Concept 1

ConsPros

WINTER QUARTER

View from Main Road

Natural Light

View out

Entrance View and Light

ARCHITECTURE – SITE RESPONSE

Large Classrooms

EW Section

ARCHITECTURE – FLOOR PLANS

Auditorium

Small Classrooms

Ground Plan

N

Technical Labs

Student Offices

Computer Machine Room

Seminar Rooms

First Floor Plan

EW Section

N

ARCHITECTURE – FLOOR PLANS

EW Section

Faculty Offices

Faculty Lounge

Admin Offices/Chair Offices

Second Floor Plan

N

ARCHITECTURE – FLOOR PLANS

EW Section

Vertical Circulation

Atrium

Second Floor PlanFirst Floor PlanGround Plan

ARCHITECTURE – FLOOR PLANS

M&E systems

1

1

2 43

2

4

ARCHITECTURE - ATRIUM

3

ARCHITECTURE

ARCHITECTURE - DAYLIGHTING

Day-lighting

•Daylighted rooms show greater performance by the occupants

•Reducing energy in lighting and heating

Heschong Mahone Group. “Daylighting in Schools”

August 20, 1999. Submitted to George Loisos, PG&E.

.Lightshelf

• Direct sun and glare

• Exterior shading controls solar gain and glare

Double-pane

•Insulation

Operable Shade

•Allows occupant control

ARCHITECTURE - GLAZING

East Facade

Reflective louvers

EAST/SOUTH FACADE

South Facade

Redirecting glazing

Lightshelf of about 4’

PERFORMANCE ANALYSIS

STRUCTURAL ENGINEERING

LOADS

GRAVITY• Deadloads

– Concrete 144 pcf– Steel 490 pcf

• Liveloads – Offices 50 psf– Classrooms 40 psf– Corridors 100 psf– Auditorium 50 psf

• Snowload 250 psf

LATERAL• Earthquake

(Seismic Zone 3)Quasi static force

~0.16xWeight.

Total weight:

1300 metric tons.

STRUCTURAL SYSTEM

Ground Floor

1st Floor

STRUCTURAL SYSTEM

2nd FLOOR

SIZES

ROOF

2ND FLOOR

1ST FLOOR

S18x54.7

W21x166

W18x106

S15x42.9

Columns: HP14x89

Bracing: W18x192

FOUNDATION SOLUTION

The soil conditions:

Gravel layer over granite.

DYNAMIC ANALYSIS

Mode Frequency (Hz)

Contribution

(~ %)

1 1.44 37

2 1.85 25

3 1.88 21

4 1.96 12

PARTIALLY PRESTRESSED COMPOSITE GLASS

STEEL CONNECTIONS

W21x166

W18x192

BOLTS M24 HP14x89

HP14x89

Max deflections:

Z: -16 mm

y

x

z

DEFLECTIONS VERTICAL

DEFLECTIONS LATERAL

x

yz

Max deflections:

X: 23mm

Y: 27mm

PROBLEM AREA COLUMN

Column location above the auditorium.

Load transfer system

Gravity force

Internal force

PROBLEM AREA FLAT ROOF

CON

•HIGH SNOWLOAD

•HEAVIER ROOF

•EXPENSIVE DRAINING

PRO

•MORE ARCHITECTUAL SPACE

•LESS EXCAVATION

•MEET HEIGHT RESTRICTION

CONSTRUCTION BUDGETCONSTRUCTION BUDGET

5.5

3.99 3.75

0

1

2

3

4

5

6

$M

2015 2002(2.5%) 2002(3%)

Years (Inflation rates)

Budget Value

Amount in US $

Reference for 2.5% inflation rate: Prof. Robert Sahr,Political Science Dept. Oregon State University

SUMMARYSUMMARY

Structural system:Structural system:Steel Structure

Time completion:Time completion: 11 months (Mon 6/8/15- Wed 4/27/16)

Cost estimation:Cost estimation: $4,091,056.04$4,091,056.04

SITE PLANSITE PLAN

EQUIPMENTEQUIPMENT

Front Loader

Caterpillar 834G

Excavator

John Deere 560LC

Crane

Link Belt:LS-138H II Lattice Crawler Crane 80 Ton (77.62 mt)

EQUIPMENTEQUIPMENT

Concrete mix trucks Concrete Pumps

Forklift NissanF05

SERIESHeavyweight Pneumatic

Gradall

G6-42A

MECHANICALMECHANICAL

A. Architect – spaceB. Structural - weightC. Electrical – POWERD. Plumbing – gas, H2O, drains

Information needed:

Air cooled system

1. Lighter

2. less maintenance

3. less expensive

Cooling towers and boilers from main University facility

MECHANICAL ROOMMECHANICAL ROOM

Insulated chiller pipes

Condenser pumps

Coils

Air Handler

HVAC DISTRIBUTIONHVAC DISTRIBUTION

VAV box

Terminal units

ELECTRICALELECTRICAL

1.Main Electrical Room Size: 12'X 8'; 2nd & 3rd flr Elec Rm size 6'X 6'

2. Cost for whole system is $210,000.00

3. Metal conduit for feeders, cable tray for telephone cables.

4. After building is raintight: 2 months.

AREAAREA KVA PWR KVA LTG TONS KVA KVA AMPS

4 VA/SQFT 3.5 VA/SQFT 250sqft./ton

LEVEL 1 10000.0 40.0 35.0 40.0 100.0 175.0 210.5

LEVEL 2 10000.0 40.0 35.0 40.0 100.0 175.0 210.5

LEVEL 3 10000.0 40.0 35.0 40.0 100.0 175.0 210.5

ELEVATOR 30.0 30.0 36.1

MISC. MECHANICAL 30.0 30.0 36.1

TOTAL 30000.0 180.0 105.0 120.0 300.0 585.0 703.7800A SERVICE IS REQUIRED

POWER & LIGHTING PWR + LTG + HVAC

LOAD CALCULATIONHVAC

ELECTRICALELECTRICAL

Single Line Diagram

PLUMBINGPLUMBING

Waste and Vent system

Occupancy 150 people

MEN (75) WOMEN (75)

WC 1/40 1/30URINAL 1/35

LAV 1/40 1/40

PLUMBINGPLUMBING

Circulating pump

Hot/Cold water supply and return

SPRINKLERSSPRINKLERS

•Light Hazard Occupancy

•Spacing max 15-16ft

•Protection Area 168 ft

•Duration 30 min

Viking Preaction SystemsViking Preaction Systems

a)against accidental water discharge b)speed the action of large dry pipe systems.

Single-Interlocked Preaction System

Double-Interlocked Systems

Horizon™ Flush Sprinklers

SPRINKLERSSPRINKLERS

About 3.5$/sf or $105,000 (3% of total cost)About 3.5$/sf or $105,000 (3% of total cost)

$ 23.67$ 23.67

$ 27.74$ 27.74

DRAINAGE SYSTEMDRAINAGE SYSTEM

Drainage system at Landscape

Sidewalk below grade, so good drainage system is needed.

DRAINAGE SYSTEMDRAINAGE SYSTEM

Drainage system at Roof

SIDEWALK PROBLEMSIDEWALK PROBLEM

Solution 1:Sprinkling groundwater over the icy surfaces

No: Problems of ground subsidence and falling groundwater

Solution 2: Electing heating cables/burning oil or gas

No: Consumption of fossil fuels emission of CO2

Solution 3: Hot water through copper tubing

No: Consumption of energy/water

Icy sidewalkIcy sidewalk

SIDEWALK SOLUTIONSIDEWALK SOLUTIONWinter: DCHE can extract heat from subsurface strata

Summer:The solar heat is recovered from the road and stored in the earth

Gaia snow-melting system

60% more expensive

Low running cost, long service life cheaper in 10 year period (depreciation,interest)

CONSTRUCTION SEQUENCECONSTRUCTION SEQUENCE

COST ESTIMATIONCOST ESTIMATIONCost estimation for Ridge

Steel Solution

Quantity Unit Unit Price Extension CommentsSitework $122,500.00

2200 Earthwork 3215 CY 15.00 $48,225.00 6'*124"*120"+ Vauditorium2200 Site utilities 30000 SF 0.83 $24,900.00 Landscape drainage2200 Crushed Rock Fill 625 CY 25.00 $15,625.00 12" thick

Sidewalk snowmelt system 250 LF 135.00 $33,750.00 (60% more than hot water through tubing)Foundations $66,374.40

Concrete3300 Spread Footings 180 CY 175.00 $31,500.00 50 blocks (3*3*1 ft^3)3300 Slab on Grade 170 CY 180.00 $30,600.00 area X 2 foot depth

Reinforcing3200 Spread Footings 1080 LBS 0.52 $561.60 6 lbs per CY3200 Slab on Grade 7140 LBS 0.52 $3,712.80 42 lbs per CY

Superstructure $716,455.00

Concrete 3300 Fill On Metal Deck 20000 SF 3.00 $60,000.00 slab area x thickness (6 inches) X # floors3300 Fill On Metal Deck - Roof 10000 SF 3.00 $30,000.003300 Pan Filled Stairs 123 Risers 75.00 $9,225.00 12', 20 Risers/floor, 2 three stoey stairwells

Reinforcing3200 Reinforcing on Metal Deck 20000 SF 0.52 $10,400.00 floor area X # floors3200 Mesh @ Pan Filled Stairs 123 EA 10.00 $1,230.00 12', 20 Risers/floor, 2 three stoey stairwells

Metal Decking5300 Metal Decking 25000 SF 2.20 $55,000.00

Fire proofing9250 Fire proofing @ structure 28000 SF 1.75 $49,000.00 Total SF / 50

Structural Steel5120 Structural Framing 180 Tons 1,800.00 $324,000.00 Total SF * 12 lbs / 2000 = tons

Misc Iron5500 Elevator Divider Beams 2 EA 1,000.00 $2,000.00 one per elevator5500 Elevator Pit Ladders 2 EA 800.00 $1,600.00 one per elevator5500 Counterweight Support Steel 2 EA 2,500.00 $5,000.005500 Guiderail Support Steel 2 EA 500.00 $1,000.005500 Loading Dock Edge Metal 25 LF 30.00 $750.00 25 LF5500 Loading Dock Guardrails 6 LF 275.00 $1,650.005500 Pipe Bollars 1 LF 150.00 $150.005500 Roll-up Support Doors 1 EA 1,200.00 $1,200.005500 Entry Canopy Frame 1 LS 45,000.00 $45,000.00

Stairs5500 Stairs- Stringers and Risers 123 Risers 425.00 $52,275.00 story height / 7" risers * number of stairs * # floors5500 Landings 6 EA 4,500.00 $27,000.00 two per floor5500 Guardrails 123 LF 225.00 $27,675.00 # of risers5500 Handrails 123 LF 100.00 $12,300.00 # of risers

Steel FrameSteel Frame $ 324,000$ 324,000

COST ESTIMATIONCOST ESTIMATION

Exterior Façade $531,033.00

Precast3450 Arch Precast (Portland stone) 7,200 SF 33.50 $241,200.00 Area covered by various arch finishes

Glass and Glazing8900 Glass Curtain Wall 4700 SF 45.00 $211,500.00 Area covered by glass

Curved curtain wall 480 SF 80.00 $38,400.008900 Window Type 1 6 SF 38.00 $228.00 2' * 6' for restrooms8900 Window Type 2 4 SF 38.00 $152.00 2' * 3' for stairwells8900 Canopy 60 SF 47.00 $2,820.008900 Exit Doors- Dbl 2 PRS 4,500.00 $9,000.00

Insulation7200 Thermal Insulation 520 SF 0.90 $468.00 perimeter X 1.3 floors7200 Fire Safing 1290 LF 8.50 $10,965.00 perimeter * 3 floors

Roofing

Roofing7500 Roofing Material 200 SF 4.50 $900.00 perimeter /2

Sheet Metal7600 Coping 400 LF 18.00 $7,200.00 perimeter7600 Flashings 400 LF 9.50 $3,800.00 perimeter7600 Flashings- Counterflashings 400 LF 11.00 $4,400.00 perimeter

Interiors $205,270.00

Misc. Iron5500 Lavetory Counter Supports 60 LF 125.00 $7,500.00 10'*2*25500 Toilet Partition Supports 4 EA 1,200.00 $4,800.00 2 per floor

Door/ Frames/ Hardware8100 Painted HM Doors - SGL 25 EA 1,500.00 $37,500.00 25 doors

Drywall9250 2 HR Partitions 5500 SF 6.50 $35,750.00 Total Bldg SF/ 69250 1 HR Partition 5500 SF 5.50 $30,250.00 Total Bldg SF/ 69250 Column Enclosures 126 EA 395.00 $49,770.00 # of columns9250 Gyp Ceilings @ Restrooms 800 SF 5.00 $4,000.009250 Gyp Ceilings @ Auditorium 3200 SF 15.00 $48,000.00

Curved Glass Curved Glass WallWall

$ 80/sf$ 80/sf

Finishes $276,950.00

Floor Coverings9650 Standard Raised Floor system 30000 SF 5.50 $165,000.00 General Office Access Floors(ConCore 1000lb loads)

Painting / Wall Covering9900 Paint Walls 10000 SF 0.50 $5,000.00 Total Bldg SF/ 39900 Paint Ceilings 21000 SF 0.60 $6,000.00 70% of total building9900 Paint HM Doors 25 EA 100.00 $2,500.00 # of doors9900 Paint SGL HM Door Frames 25 EA 50.00 $1,250.00 # of doors9900 Fabric Wall Panels @ Auditorium 3888 SF 25.00 $97,200.00 perimeter*12'

Building Specialties $103,960.00

10520 Fire Extinguishers 12 EA 175.00 $2,100.00 4 per floor

Toilet Partitions / Accessories10150 Painted Metal Standard Stalls 4 EA 700.00 $2,800.00 2 per floor10150 Painted Metal - HC Stalls 4 EA 765.00 $3,060.00 2 per floor10150 Accessory Allowance 4 EA 1,500.00 $6,000.00 4 per floor

Conveying Systems14200 Passenger Elevator - Hydraulic 3 STPS 30,000.00 $90,000.00 1 stop per floor per elevator

MEP $1,285,500.00

Sprinklers 30000 SF 3.50 $105,000.00 Total Blg SF15060 Process And Utility Piping 30000 SF 6.00 $180,000.00 Total Blg SF15400 Plumbing 30000 SF 4.00 $120,000.00 Total Blg SF15500 HVAC 30000 SF 12.00 $360,000.00 Total Blg SF16050 Eletrical 30000 SF 7.00 $210,000.00 Total Blg SF16720 Security 30000 SF 1.20 $36,000.00 Total Blg SF16725 Data Communication 30000 SF 1.50 $45,000.00 Total Blg SF16930 Building Automation / Control 30000 SF 2.00 $60,000.00 Total Blg SF

Central Plant Allowance 30000 SF 5.65 $169,500.00 Total Blg SF

Sub-total $3,308,042.40Contigiencies(10%) $330,804.24General conditions(8%) $264,643.39Fee(5%) $165,402.12Excess Liabalility(0.67%) $22,163.88

Total $4,091,056.04

COST ESTIMATIONCOST ESTIMATION

MEP SystemsMEP Systems $ 1,285,500$ 1,285,500

$ 4,091,068.04$ 4,091,068.04

COST COMPARISONS COST COMPARISONS

Contingencies(10%) General conditions(8%) Fee(4-6%) Excess Liabalility (0.67%)

Cost estimation: Cost estimation: $4,285,516.40$4,285,516.40

Sitework $50,170.00Foundations $66,374.40Superstructure $553,977.17Exterior Façade $576,331.00Interiors $205,270.00Finishes 276,950.00$ Building Specialties $103,960.00MEP $1,660,500.00

16%

16%

6%8%3%

1%2%

48%

Sitework Foundations Superstructure

Exterior Façade Interiors Finishes

Building Specialties MEP

Winter

Sitework $122,500.00Foundations $66,374.40Superstructure $716,455.00Exterior Façade $531,033.00Interiors $205,270.00Finishes 276,950.00$ Building Specialties $103,960.00MEP $1,285,500.00

Cost estimation: Cost estimation: $4,091,056.04$4,091,056.04

22%

16%6%8%3%

4% 2%

39%

Sitework Foundations Superstructure

Exterior Façade Interiors Finishes

Building Specialties MEP

Spring

COST COMPARISONS (MEANS)COST COMPARISONS (MEANS)

GENERAL CONDITIONS (Overhead & Profit): 25%

ARCHITECTURAL FEES: 7%

Cost estimation: Cost estimation: $$4,064,100.004,064,100.00 Cost estimation: Cost estimation: $4,091,056.04$4,091,056.04

Contingencies(10%) General conditions(8%) Fee(4-6%) Excess Liabalility (0.67%)

22%

16%6%8%3%

4% 2%

39%

Sitework Foundations Superstructure

Exterior Façade Interiors Finishes

Building Specialties MEP

Spring4.4%

23.3%

22.4%

50.0%

Substructure Superstructure

Interiors Services

Means

WORK PROCESS - COLUMNSWORK PROCESS - COLUMNS

A proposes floor plan

E suggests alternative

C gave input to have column continous.

E suggests alternative

REVIEW OF TEAM GOALSREVIEW OF TEAM GOALS

Action Items for Next Phase

Ask more questionsCloser Collaboration

Action Items for Next Phase

Ask more questionsCloser Collaboration

GOALS FROM WINTERPRESENTATION:

•More efficient meetings.

•Worked closer between disiplines.

•Tried to understand the needs across disiplines.

•Stronger team responsibility

LEARNING EXPERIENCE

A• Team

collaboration• Designing in

conjunction with engineers and construction managers

C• Appreciating the

difficulty of building something in real life

• First hand experience with the importance of keeping the schedule

E• Working with

earthquakes• Same problems

and new solutions. (Europe vs USA).

App• Structural

dynamics• 3D modelling

AEC• Overcoming cultural differences in

construction industry• Exploring front edge technology

THANK YOU

Mentors

Ralph Lotito Dan GonzalesHenry TooryaniJames E. BartoneDavid ParznigoniBob TatumBoyd Paulson

Industry

Tom Giarruso (W.L.Butler, Inc)Jim Hawk (Rosendin Electric, Inc)Steve Gustafson (CMI, Inc)Scott Sullivan (Royal Glass)Sammy Salamon (KDS Plumbing)Dr. Greg Luth (KL&A)