Bay team’s Output Engineer Yang, Yao-Hung Construction Manager David Walthall Architect Cindy Chan

San Francisco Seismic Concern Liquefaction and Landslides

Climate Data San Francisco Oceans, California USA Located at N W, 100 feet above sea level Average Temperature 55.6 °F Annual Rainfall1.9 inches Heating Degree <65°F / Year1921 Cooling Degree23 Reference Site

Urban Texture Campus Transaction of Urban and Nature Campus Grid vs. City Grid N

San Francisco State University Student Health Center Burk Hall Student Service Complex Cesar Chavez Student Center J.P. Leonard Library N

Redesign- Sundial Project Original Concept The Sundial will be a marker of time and movement of the activities that occur inside the building Hallways acting like a Telescope (provide view to SF), allowing outsiders to have a clear view of the activities occurring inside. Goal Add Cafeteria and Gym Using the unique cone structure to centralize main social activity Provide more efficient circulation and encourage interaction.

Floor Plan Gym 2 Floor height open space 660 SF- 26’ 400 SF - 16’ RR Columns and Glass Panels alone the Gym Chair Office Faculty Office Secretaries Cafeteria E N B 1 st 2 nd 3 rd

Attempt of Material Choice A: Using Tensile structure for the cone structure E: Concern about safety Issues: Wind velocity Owner : Low R-Value for the tensile structure Use double glazing for the structure A: short life cycle of the structural material

Redesign Structure Alts Side View Steel SMRF Concrete MRSF

Redesign Concrete selected

Alt 1 - The Spine Project The fundamentals of Engineering Profession… Research Recording Analyzing Storing Information Knowledge Centralize Display Encourage Social Interaction Private Faculty Student Public E`

Spine Floor Plan 1 st 2 nd 3 rd

Spine Material Choice

Spine Structure Alternatives 3D Model Side View Core + Brace, Steel SMRF Brace, Concrete SMRF Shear walls with Concrete SMRF

Spine Spine with glass cladding Brace with Energy dissipation devices

Spine Alt 1 Brace & Damping

The Curve Wall Project

Entrance Curve Wall Cantilever Structure Circulation/Service Strip Concept

Plan Evolution 2 nd Classroom/ Lab Receive defuse North light 1 st Basement Auditorium Public Space alone the Curve Wall Lobby 2 fl height open space Student Office Close to student body Ramp Handicap Access. Curve Wall Sense of continuity Cantilever Bridge to the nature

Material Choice

Curve Alternatives Core with Steel MRF and lightweight concrete slab and steel deck Shear walls, Core with Postensioned Gravity Floor System

Auditorium & Cantilever Auditorium Cantilever Part Shear connection

Foundation: Footing Spread Footing (Shallow Foundation) Used Dimension: 3.6 x 3.6 Square Footing

Retaining Wall – Water table ’ – Soil Friction angle - 20 – Cohesion lb/Ft 2

Construction Constraints and Considerations Site Location –Close to ocean –San Francisco – seismic activity –Metropolitan area – accessibility and construct ability

Location of Site Major Highway

AVOID!!

Trailer Radius of Crane Material Storage Flow of Traffic Alternative Site Layouts

Flow of Traffic Trailer Radius of Crane Material Storage

Funds Available for Project

Conservative values + Inflation + Cyclical Costs + Improved Methods $500,000 =

Equipment Selection Mobility Maneuverability Cost Availability

120 Ton All Terrain Crane Grove GMK- 5120B For use with heavy columns And beams as wells as Decking Reach of 72 feet to 115 feet. Heights from 52 feet to 72 feet. Lift capacities at maximum reach of 1320 pounds to 2200 pounds. Maximum lift of up to 8800 pounds. For use with VRML

Price Breakdown

+ ’s- ’s - Strong sense of directionality - Clear frame and core defined - Repetition, Symmetry - Scarify large amount of space - Complex interactions between systems - Too Expensive - Simple Form and Clear Circulation path - Various informal social space - Two Uniformed structure system - Challenging Design - Exceeding height limit - The form is too Rigid - Eccentric moment issue - Amount of Glass - Strong Form and Gesture - Provide multi level special experiences - Simple gravity system - Reassembly of materials\ - Lack of informal social space - Non-Uninformed Long beams - Complicated concrete Comments

Team Dynamics

Lessons Learned / Improvement Lessons Architect – Communication through 2D and 3D graphic program, Patient and Trust. Engineer – 3D coordination,Communication, CM – Complete Documentation exchange between discipline Improvement Precisely define the size of components 3 D software modeling Always Keep other members inform of ideas, progress, and changes through website Time management and Efficient group meeting