Wave 2001 Mildred van der Zwan Architect TUDelft

Wave 2001 Mildred van der Zwan Architect - TUDelft Valerie Ou Engineer – Stanford Diego Aviles Construction Manager Stanford Daniel Kwon Apprentice – Stanford Brooke Barrett Owner - DPR Wave 2001

Architect’s Vision • Flexible building and workplaces • Central areas for interaction • Ocean view • Context Wave 2001

Matrix Architect Engineer CM New Design 1 • Undeveloped circulation • High Tech • Clear structural grid • Possible difficulty casting slope slab • Excavation required for Auditorium • High cost of the exterior (glass) • Possible savings by exposing slab New Design 2 • Good organization, elegant, interesting for good detail • Structure integrated with architecture • No visual intrusion to architectural components • High learning curve due to the symmetry of the structure • No excavation required for auditorium Wave 2001

3 D Model Wave 2001

Floor 1 auditorium classrooms lab seminar computer offices Wave 2001 lounge storage MEP elevator

Floor 2 auditorium classrooms lab seminar computer offices Wave 2001 lounge storage MEP elevator

Floor 3 auditorium classrooms lab seminar computer offices Wave 2001 lounge storage MEP elevator

A Section B B” A” A A” B B” Wave 2001

Building Performance Large classrooms: Sloped, 2 exits, 65 seats Auditorium: sloped, 5 exits, 197 seats All classrooms, LAB, Computer: ocean view All offices: daylight Wave 2001

Structural Requirements Design wind speed: V 33 = 80 mph • NBCC (National Building Code of Canada) • Most severe case: North wind Wind parallel to corridor Design snow load: • Uniformly distributed load • 25 psf Wave 2001

Final Structural Solution Beam : W 18 X 35 Girder: W 24 X 76 Column: W 14 X 48 • Steel Moment resisting frame • 3” 20 GA full composite slab • 12 m girder, column/column span Wave 2001

Foundation Design • Spread footings : 1. 5 m X 60 cm • Grade beams: 30 cm X 60 cm Wave 2001

Architectural/Structural Integration Column!! • No structure element intrusion in architectural space in 1 st and 2 nd floor • One column intruded flexible offices are, but acceptable to architect Wave 2001

Architectural/Structural Integration Architect Engineer • Elevator Check for beam & girder location and frame around slab opening • Sloped slab Design supporting structure for gravity load Wave 2001

Final Roof Design: Structure N • Conventional Truss: Double angles • Truss Spacing: 20’ oc • Purlin Spacing: 5’oc EW, 7 oc NS • Simple connections to main structure Wave 2001

Roof Design: Truss Configuration N WIND L 2 X 2 ½ X 5/16 L 2 X 2 ½ X 3/16 • Sloping N-S direction WIND • Suction effect due to North wind at wing trusses—uplifting L 2 X 2 ½ X 3/16 • Compression on end trusses Wave 2001

Roof Design: Truss Configuration con’t N WIND L 2 X 2 ½ X 3/16 • Sloping E-W direction • Wind parallel to ridge suction effect L L 2 X 2 ½ ½X X 3/16 • Uplifting at connections Wave 2001

Roof Design: Truss Configuration con’t • Purlin size: C 9 X 20 • 1 ½” steel deck • Expanded perlite and fibers impregnated with integral asphalt waterproofing • 2 hr fire rating with 1” slab Wave 2001

Roof Connections Truss / Truss connection Deck/channel/truss connection Truss member connection Truss end connection Wave 2001

Structure Connections Girder to column connection Moment connection Beam to column connection Column to footing connection Wave 2001

Structural Analysis: • P-d effect included • Story drift : 1. 2 in • Truss element forces are verified by MASTAN • Large horizontal shear force • Average element force at truss/structure connection ranging from 10 kips to 50 kips Wave 2001

Pro’s and Cons Pro’s Cons • Minimum space intrusion • Deep beams and girders limiting floor to ceiling height • Flexible future upgrades • Conservative structural member sizes • Simple structure Wave 2001

Construction Objectives • Budget: $5. 5 Million in 2015 (4. 6 Million PV) • Time Constraints: • 1 year (construction duration ) • Computer Lab Occupied by May 30, 2016 • Preserve Architecture Wave 2001

Site Plan Wave 2001

Construction Equipment Crane Dump Truck Concrete Pump Truck Excavator Material Handler Wave 2001

4 D Simulation Wave 2001

Schedule - Milestones Milestone 1 Foundation (week 5) Wave 2001

Schedule - Milestones Milestone 2 Set HVAC Equipment (week 18) Wave 2001

Schedule - Milestones Milestone 3 Exterior Closure (week 24) Wave 2001

Schedule - Milestones Milestone 4 Project Completion (week 31) Wave 2001

Schedule Analysis • Total Pre-construction Time: 8 months • Total Construction Duration: 7 months • Milestones: – Foundation (by June 30, 2015) – Exterior Closure (by November 30, 2015) – Project Completion (by January 15, 2016) • Time savings achieved by: – Simple Foundation – Steel Structure – On time Enclosure Wave 2001

Construction Estimate $611, 176 $3, 756, 820 Wave 2001

Cost Distribution Wave 2001

Cost Analysis • Where are the main costs? $3, 756, 820 $3, 590, 600 – Superstructure (Roof-Truss) – Larger Surface Area (2, 736 sf) • How did we save? – Simple Foundation – Avoided Mass Excavation (Bedrock) – Local Wood Facade Wave 2001

Equipment Specifications (1) Chiller • 60 Tons Nominal Capacity • Dimensions: • Length = 9. 5 ft • Width = 7. 3 ft • Height = 6. 5 ft • Weight = 2465/3010 lbs Wave 2001

Equipment Specifications (2) Air Handling Unit • 120 Tons with 20, 000 CFM airflow • Dimensions: – Length = 12. 4 ft – Width = 6 ft – Height = 8 ft( – Weight = 8, 000 lbs Wave 2001

MEP Layout Floor 1 Floor 2 Wave 2001 Floor 3

Team Process: Roof Design A E C Wave 2001

Lessons Learned • Explanation of concepts in other disciplines • Good design requires interaction and collaboration • Technology is only as good as the user Wave 2001

Thank You A Carel Weeber (TUDelft), Rutger Smook (TUDelft), Sevil Sariliydize (TUDelft), Dennis Scott (MBT), David Bendett (MBT), Bart Luiten (HBG), Bart van der Pot (HBG), Cor Notenboom (HBG) E Greg Luth (KLAA), Shilin Jiang (KLAA), Eduardo Miranda (Stanford) C Eric Horn (Webcor Builders), Bob Tatum (Stanford) and Eduardo Miranda (Stanford) Wave 2001