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Pacific Team

For tomorrow may rain, so I’ll follow the sun. Pacific Team. Ajaya Malla UW Madison. Structural Engineers. Architect. Jeremy Tillman Stanford. Katie Walker Stanford. Joannie Rios UPR. Construction Managers. Owner. Erik Kneer. Josh Odelson Stanford. Magnus Hellsten KTH.

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Pacific Team

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  1. For tomorrow may rain, so I’ll follow the sun. Pacific Team

  2. Ajaya Malla • UW Madison • Structural Engineers • Architect • Jeremy Tillman • Stanford • Katie Walker • Stanford • Joannie Rios • UPR • ConstructionManagers • Owner • Erik Kneer • Josh Odelson • Stanford • Magnus Hellsten • KTH

  3. Team Vision

  4. O Team Process Owner E Engineers Architects C Construction Managers A Solution

  5. N Site Information • Project Details: • University Building • Use: • - Engineering • School for • Innovative Design • Location: • - San Francisco • State University • Construction in 2015 • $6.5 million Donation

  6. N N N Site Location • NEXT TO • LAKE MERCED

  7. Site Climate Information • Mild Local Climate • Average Temp: • - Mid- 40 deg • Precipitation: • - 23 in rain/year

  8. N Site Conditions • 18 degree Slope • Hazards: • Earthquakes – Zone 4 • ~ 1-2 miles away • from San Andreas • Fault • Landslides • Liquefaction SITE SLOPE MAP OF LIQUIFACTION & LANDSLIDE POTENITIAL Lake Merced BLVD.

  9. N Site Master Plan • Reflection Pond • Bridge Building • Entrance • Running/walking • path to Lake • - Platforms • - Ramps • - Stairs • Swale • Natural Vegetation

  10. Innovative Financing • University Foundation • $6.5 million to use • Meet current needs • Build Parking Garage • Alleviates university parking problems • Parking fees back Revenue Bonds • Return rate of 6% $8,415,000

  11. Schedule • Labs Finished • April 30, 2016 • Project Finish • July 12, 2016 Site Foundation Interior Framing Roof MEP/ Interior Finishes

  12. N Site Access • Street improvement for South access • Re-route runningpath SITE BUS STOPS

  13. N Site Layout • Material • Storage • Site offices • Security • Water/Electricity • WC • Parking • Waste container • Equipment • Recyle area • Workshop • Wheel wash

  14. Slope Stability Solutions • Control: • 1. Ground water pressure - Horizontal Drains • 2. Storm-water run-off - Swales • 3. Slope erosion - Re-vegetation - Gabions SWALE CROSS-SECTION GABIONS

  15. N 17 Base Isolators 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” • REQUIRES: • Higher Building Design Forces • Larger Structural Members • Ductile Connections • REQUIRES: • Second Basement • Flexible Utility Connections 58’-0” 58’-0” 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” Foundation • Options: • Base Isolation • Foundation • On-Grade • Trade Off Analysis: • Base Isolation • Design Requirements • Cost of Structure • = $2,155,000 • Foundation On-Grade • Design Requirements • Cost of Structure • = $1,575,000 • SAVE $580,000

  16. 4 in 12 in ~ 40 ft Foundation Solution • Design: • 12” Diameter Bored Pile • Concrete Grade Beams • 4” Concrete Slab On- Grade • Display Graphic for pile design • Pile Comparison: • Bored • - Cost = $9100/pile • Driven • - Cost = $6300/pile PILE CAP DETAIL

  17. N 116’-0” 116’-0” Basement Floor • Instructional Lab • Computer Lab • Seminar Rooms • Auditorium • Restroom • Storage • Balcony

  18. N 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” • Gravity System: • - Steel Columns • and Beams • - Retaining Walls • Lateral System: Moment Frame - Column: HSS 16x16 - Beam: W12x120 Shear Wall - Concrete - 12” wide Shear Wall Core - Concrete - 12” wide Basement • MEP Room 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2”

  19. N 125’-0” 125’-0” First Floor • Small Classrooms • Large Classrooms • Administration • Storage • Restrooms

  20. N 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” First Floor • Wall Truss: • Span Auditorium • Transfer Load • Architectural • requirement

  21. 12’-6” 58’-0” 19’-2” Wall Truss - Connection • Connection Detail: • Gusset Plate • Pin Connection

  22. 58’-0” Wall Truss: Load Path

  23. N 128’-0” 128’-0” Second Floor • Student offices • Faculty offices • Faculty Lounge • Restrooms

  24. N 13’-6 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” 19’-4” 19’-4” 19’-4” 19’-2” 19’-2” 19’-2” 13’-6 Second Floor • Special Features: • Link Bridge • Lateral System • Core-wall Interface

  25. Full Penetration Weld Shear Tab Bolt Moment Frame Connection • Moment Frame • Double Moment • Connection • Biaxial Bending • Use of HSS square • tubular section • Pre-North Ridge approved connection

  26. Second Floor • Link Bridge: • Provides • Diaphragm Action • Transfers Lateral • Load to Shear Core • Shear Tab • Connection to Girder

  27. N Lateral System Load Path • Moment Frame • Link Bridge • Shear Wall Core • Load Transfer Girder

  28. N 128’-0” 128’-0” Roof • Corrugated Metal • Glass • Solar Panels • Louvers

  29. Building Section • Interior Spaces • Open Space • Outside Space 128’-0”

  30. HVAC - Evolution • MECHANICAL SYSTEM • HYBRID SYSTEM Supply Return

  31. Roof Evolution

  32. Roof Evolution

  33. Roof Structural Evolution 30 ft 58 ft Efficient Load Path Shallow Depth

  34. ELLIPTICAL ROOF (END TRUSS) ELLIPTICAL TRUSS (VARIABLE DEPTH) Roof Structural Evolution ARCH TRUSS (WITH COLUMNS)

  35. Trade Off Analysis

  36. N 3 ft 5.5 ft 27 ft 58 ft Final Structural Design • Key Structure • TOP CHORD • (8.625 x 0.5 HSS) • BOTTOM CHORD • (8.625 x 0.375 HSS) • DIAGONALS • (7.5 x 0.375 HSS) • GIRDER • (W6x9 @ 6ft c/c) • Material Specification • Hollow Sections • ASTM A500 • Rolled open section • ASTM 529 (Gr 50 Steel) • Bolts & Fasteners • ASTM A490

  37. Load Carrying Mechanism 97 ft Gravity Load (Dead / Live) 30 ft 58 ft DDL – 2.2 in. (L/331) DLL– 0.97 in. (L/725) ------------------------ D(DL+LL)= 3.1 in.(L/225) Dead Load – 35 psf Live Load - 20 psf

  38. 30 ft Load Carrying Mechanism 97 ft Lateral Load (Seismic / Wind) Wind – 20psf Seismic – 20% DL 58 ft Lateral Drift (max) 1.5 in ( H / 240)

  39. 12.5 k Transverse Direction Bracing Lateral Load: - 0.5” Dia. Bracing rod. CONNECTION DETAIL

  40. 3 ft 5.5 ft Roof Connections - Conceptual • TRUSS BASE • CONNECTION • CONNECTS TO WIDE • FLANGE COLUMN • PIN-TYPE DETAIL

  41. PREFABRICATED C-CLAMP BOLTS SLOTTED ANGLE WELDED TO COLUMN End Truss with Temporary Supports ADJUSTABLE COLUMN WITH ANGLED CUT Truss Construction (temporary)

  42. TRUSS CHORD SPLICE (Detail Below) 0.5” Round End Capping Plate 8.625 x 0.375” HSS 8.625 x 0.375” HSS TRUSS CHORD – SPLICE DETAIL 3/8” Single “V” Butt-Weld Center Truss Installation End Truss with Temporary Supports 2nd Floor Beam Completion Roof Construction

  43. 0.5” thk capping plate 4” 8.625 x 0.5 HSS (Diagonal truss chord) 0.75” thk end plate Welded to HSS 8.625 x 0.375 HSS (Parallel Truss chord) 3 nos. ½ in. dia (A490 bolts) Roof Connections • Diagonal Truss Connection

  44. 4D Construction

  45. Cost Changes • Superstructure + Increased Truss Steel • Exterior Closure – Changed from glass to corrugated metal • Mechanical costs + Under-estimated cost Natural ventilation • Foundation – Overdesigned piles • Overall building cost Lowered by $515,000 • Finish July 12, 2016 $ Cost Comparison $8,630,000 $8,115,000

  46. LEED - Sustainability • Rain water • collection • PV Cells • Natural ventilation • Sustainable • material • Sustainable • construction 29 Points LEED Certification

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