1. RIDGE TEAM
Spring Presentation

2. TEAM MEMBERS Owner : Peter Demian Architect : Construction Manager :
Amy Wang
Stanford University
Structural Engineer :
Per Karlsten
KTH, Sweden
Construction Manager :
Kostas Dimitros
Stanford University
Apprentice:
Lars Keim
FHA, Switzerland

3. SITE Site Location: Lake Tahoe Area, California Plentiful Sunshine
Heavy Winter Snow

4. WINTER QUARTER Pros Cons Concept 1
Curved glass and atrium to provide abundant natural light
Short Construction time
Lower cost – use of prefabrication
Extensive use of glass
Expensive Cantilever
Steel
Light structure
Fire Protection
Concrete
Few Vibration Problems
Concrete/glass interaction
Concept 2
Private and public outdoor gathering spaces
Open office plan
Extensive use of glass
Tight classrooms
Lack of natural light in basement level
Steel
Construction time
Acoustic Problems
Concrete
Acoustic/Fire
Concrete/Glass interaction

5. ARCHITECTURE – SITE RESPONSE
Entrance
View and Light
View from Main Road
View out
Natural Light

6. ARCHITECTURE – FLOOR PLANS
EW Section
Auditorium
Small Classrooms N
Large Classrooms
Ground Plan

7. ARCHITECTURE – FLOOR PLANS
EW Section
Computer Machine Room
Technical Labs
Student Offices
Seminar Rooms N
First Floor Plan

8. ARCHITECTURE – FLOOR PLANS
EW Section
Faculty Offices
Faculty Lounge
Admin Offices/Chair Offices N
Second Floor Plan

9. ARCHITECTURE – FLOOR PLANS
EW Section
Vertical Circulation
M&E systems
Atrium
Ground Plan
First Floor Plan
Second Floor Plan

10. ARCHITECTURE - ATRIUM 1 4 3 2 1 2 3 4

11. ARCHITECTURE

12. ARCHITECTURE - DAYLIGHTING
Daylighted rooms show greater performance by the occupants
Reducing energy in lighting and heating
Heschong Mahone Group. “Daylighting in Schools”
August 20, Submitted to George Loisos, PG&E.

13. ARCHITECTURE - GLAZING
.Lightshelf
Direct sun and glare
Exterior shading controls solar gain and glare
Double-pane
Insulation
Operable Shade
Allows occupant control

14. EAST/SOUTH FACADE East Facade South Facade Reflective louvers
Redirecting glazing
Lightshelf of about 4’

15. PERFORMANCE ANALYSIS

16. STRUCTURAL ENGINEERING

17. LOADS GRAVITY Deadloads Liveloads Snowload 250 psf LATERAL
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.

18. STRUCTURAL SYSTEM
Ground Floor
1st Floor

19. STRUCTURAL SYSTEM
2nd FLOOR

20. SIZES S18x54.7 Columns: HP14x89 W21x166 Bracing: W18x192 W18x106
ROOF
2ND FLOOR
1ST FLOOR

21. FOUNDATION SOLUTION
The soil conditions:
Gravel layer over granite.

22. DYNAMIC ANALYSIS PARTIALLY PRESTRESSED COMPOSITE GLASS Mode
Frequency (Hz)
Contribution
(~ %) 1
1.44 37 2
1.85 25 3
1.88 21 4
1.96 12
PARTIALLY PRESTRESSED COMPOSITE GLASS

23. STEEL CONNECTIONS
BOLTS M24
HP14x89
W21x166
W18x192
HP14x89

24. DEFLECTIONS VERTICAL
Max deflections:
Z: -16 mm z y x

25. DEFLECTIONS LATERAL
Max deflections:
X: 23mm
Y: 27mm z y x

26. PROBLEM AREA COLUMN Column location above the auditorium.
Load transfer system
Gravity force
Internal force

27. PROBLEM AREA FLAT ROOF CON PRO HIGH SNOWLOAD HEAVIER ROOF
EXPENSIVE DRAINING
PRO
MORE ARCHITECTUAL SPACE
LESS EXCAVATION
MEET HEIGHT RESTRICTION

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

29. SUMMARY Structural system:Steel Structure
Time completion: 11 months (Mon 6/8/15- Wed 4/27/16)
Cost estimation: $4,091,056.04

30. SITE PLAN

31. EQUIPMENT
Crane
Link Belt:LS-138H II Lattice Crawler Crane Ton (77.62 mt)
Excavator
John Deere 560LC
Front Loader
Caterpillar 834G

32. Forklift NissanF05 SERIES Heavyweight Pneumatic
EQUIPMENT
Concrete mix trucks
Concrete Pumps
Forklift NissanF05 SERIES Heavyweight Pneumatic
Gradall
G6-42A

33. Cooling towers and boilers from main University facility
MECHANICAL
Information needed:
Architect – space
Structural - weight
Electrical – POWER
Plumbing – gas, H2O, drains
Air cooled system
1. Lighter
2. less maintenance
3. less expensive
Cooling towers and boilers from main University facility

34. MECHANICAL ROOM Coils Air Handler Insulated chiller pipes
Condenser pumps

35. HVAC DISTRIBUTION
VAV box
Terminal units

36. ELECTRICAL
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.

37. ELECTRICAL
Single Line Diagram

38. PLUMBING
Waste and Vent system

39. PLUMBING
Circulating pump
Hot/Cold water supply and return

40. Horizon™ Flush Sprinklers
Light Hazard Occupancy
Spacing max 15-16ft
Protection Area 168 ft
Duration 30 min
Viking Preaction Systems
a)against accidental water discharge b)speed the action of large dry pipe systems.
Single-Interlocked Preaction System
Double-Interlocked Systems

41. SPRINKLERS About 3.5$/sf or $105,000 (3% of total cost) $ 23.67
$ 27.74

42. Drainage system at Landscape
Sidewalk below grade, so good drainage system is needed.
Drainage system at Landscape

43. Drainage system at Roof

44. SIDEWALK PROBLEM Icy sidewalk
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

45. SIDEWALK SOLUTION Gaia snow-melting system
Winter: 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)

46. CONSTRUCTION SEQUENCE

47. COST ESTIMATION
Steel Frame
$ 324,000

48. COST ESTIMATION
Curved Glass Wall
$ 80/sf

49. COST ESTIMATION
MEP Systems
$ 1,285,500
$ 4,091,068.04

50. COST COMPARISONS Winter Spring Cost estimation: $4,285,516.40
Contingencies(10%) General conditions(8%) Fee(4-6%) Excess Liabalility (0.67%)

51. COST COMPARISONS (MEANS)
Cost estimation: $4,064,100.00
Cost estimation: $4,091,056.04
Means
Spring
GENERAL CONDITIONS (Overhead & Profit): 25%
ARCHITECTURAL FEES: 7%
Contingencies(10%) General conditions(8%) Fee(4-6%) Excess Liabalility (0.67%)

52. WORK PROCESS - COLUMNS A proposes floor plan E suggests alternative
C gave input to have column continous.
E suggests alternative

53. Action Items for Next Phase
REVIEW OF TEAM GOALS
Action Items for Next Phase
Ask more questions
Closer Collaboration
GOALS FROM WINTERPRESENTATION:
More efficient meetings.
Worked closer between disiplines.
Tried to understand the needs across disiplines.
Stronger team responsibility

54. LEARNING EXPERIENCE A Team collaboration
Designing in conjunction with engineers and construction managers E
Working with earthquakes
Same problems and new solutions. (Europe vs USA). C
Appreciating the difficulty of building something in real life
First hand experience with the importance of keeping the schedule
App
Structural dynamics
3D modelling
AEC
Overcoming cultural differences in construction industry
Exploring front edge technology

55. THANK YOU Mentors Ralph Lotito Dan Gonzales Henry Tooryani
James E. Bartone
David Parznigoni
Bob Tatum
Boyd 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)