Set-Based Concurrent Desgin

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The use of Set-Based Design and Choosing by advantages on a radically schedule-accellerated aquatic therapy center for the Veterans Affairs in Palo Alto. Also includes discusion of set-based detailing and relationship to Lean Project Delivery.

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  • Change ref for slide show, not labs 21 but ____
  • Set-Based Concurrent Desgin

    1. 1. Set-based Concurrent Design Eric Peabody, NCARB, LEED AP <ul><li>Set Based Design </li></ul><ul><li>Choosing by Advantages </li></ul><ul><li>Set Based Detailing </li></ul><ul><li>Relationship to Lean </li></ul>The Design Partnership LLP  Architects + Planners
    2. 2. VA Palo Alto, Aquatic Center The Design Partnership LLP  Architects + Planners
    3. 3. The Design Partnership LLP  Architects + Planners
    4. 4. Set Based Design <ul><li>Divide design into interchangeable chunks </li></ul><ul><li>Multiple simultaneous designs for each chunk </li></ul><ul><li>Evaluate Combinations </li></ul><ul><li>Select a combination set </li></ul><ul><ul><li>Choosing by Advantages </li></ul></ul><ul><li>Swap chunks at roadblocks </li></ul>The Design Partnership LLP  Architects + Planners
    5. 5. Design Sets: Massing The Design Partnership LLP  Architects + Planners
    6. 6. Design Sets: Roof Structure The Design Partnership LLP  Architects + Planners
    7. 7. Design Sets: Skin Design The Design Partnership LLP  Architects + Planners
    8. 8. Design Sets <ul><li>Evaluate Combinations : n 1 *n 2 *n 3 …n n = many sets </li></ul><ul><ul><li>Massing: 7 options Roof Structure: 4 options Skin Design: 6 options </li></ul></ul><ul><ul><li>7*4*6=168 design sets </li></ul></ul>The Design Partnership LLP  Architects + Planners Which is the best option?
    9. 9. Choosing by Advantages <ul><li>The Fundamental Rule of Sound Decision-making: </li></ul><ul><ul><li>Decisions must be based on the importance of advantages. </li></ul></ul><ul><ul><li>Pros & Cons = double counting </li></ul></ul><ul><li>Identify Attributes: </li></ul><ul><ul><li>Cake vs Cereal for Breakfast </li></ul></ul><ul><ul><ul><li>Calories </li></ul></ul></ul><ul><ul><ul><li>Taste </li></ul></ul></ul><ul><li>Identify Difference in Attribute Value: </li></ul><ul><ul><li>Cake for breakfast = 500 calories </li></ul></ul><ul><ul><li>Cereal for breakfast = 200 calories </li></ul></ul><ul><ul><ul><li>Difference = 300 calories </li></ul></ul></ul>The Design Partnership LLP  Architects + Planners
    10. 10. Choosing by Advantages <ul><li>Identify Advantage </li></ul><ul><ul><li>Calories: </li></ul></ul><ul><ul><ul><li>Cake has 300 more calories </li></ul></ul></ul><ul><ul><ul><li>Cereal has 300 fewer calories </li></ul></ul></ul><ul><ul><ul><li>Advantage: </li></ul></ul></ul><ul><ul><ul><ul><li>Cereal’s advantage is 300 few calories </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Cake has no calorie advantage </li></ul></ul></ul></ul><ul><ul><li>Taste: </li></ul></ul><ul><ul><ul><li>Cake tastes very good. </li></ul></ul></ul><ul><ul><ul><li>Cereal tastes okay. </li></ul></ul></ul><ul><ul><ul><li>Advantage: </li></ul></ul></ul><ul><ul><ul><ul><li>Cake’s advantage is it tastes much better </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Cereal has no taste advantage </li></ul></ul></ul></ul>The Design Partnership LLP  Architects + Planners
    11. 11. Choosing by Advantages The Design Partnership LLP  Architects + Planners 9 5 5 0 0 1 2 1 0 8 8 0 0 10 6 10 0 8 3 3 7 5 0 0 16 37 24 14
    12. 12. Swap Chunks <ul><li>Round 1: client selection </li></ul><ul><ul><li>Massing: Courtyard </li></ul></ul><ul><ul><li>Roof Structure: Bow String </li></ul></ul><ul><ul><li>Skin Design: Green Screen w/ Translucent Top </li></ul></ul><ul><li>Road block 1: Roof maintenance personnel safety </li></ul><ul><ul><li>Trade Flat for Bowstring </li></ul></ul><ul><li>Round 2: 30% scope increase </li></ul><ul><ul><li>Keep Massing & Roof Structure </li></ul></ul><ul><ul><li>Develop new skin designs </li></ul></ul><ul><ul><li>Client selected a variation of the Folded Skin option. </li></ul></ul><ul><li>Road block 2: Contextuality </li></ul><ul><ul><li>Keep Translucent Top & Lobby Design </li></ul></ul><ul><ul><li>Trade fenestration and material selection </li></ul></ul>The Design Partnership LLP  Architects + Planners
    13. 13. Radically Accelerated Schedule <ul><li>Veterans Affairs Aquatic Center & Gymnasium </li></ul><ul><li>Typical Project Schedule: 30 to 45 minutes per SF for design. </li></ul><ul><li>Radically Accelerated Schedule: 30,000 SF in 4 months – Programming through CD 3 minutes per SF for design (10 to 15 times faster) </li></ul>The Design Partnership LLP  Architects + Planners
    14. 14. Set-Based Detailing The Design Partnership LLP  Architects + Planners SET 1 SET 2 SET 3
    15. 15. Set-Based Detailing The Design Partnership LLP  Architects + Planners
    16. 16. Relationship to Lean <ul><ul><li>Broadly evaluate options (study drawing phase) </li></ul></ul><ul><ul><ul><li>Customer Value </li></ul></ul></ul><ul><ul><ul><li>Chain of Value (enough depth to engage C of V) </li></ul></ul></ul><ul><ul><ul><li>Limit waste of overprocessing & subsequent rework </li></ul></ul></ul><ul><ul><li>Make decisions slowly, thoroughly considering options </li></ul></ul><ul><ul><ul><li>Consider all likely conditions not just the typical </li></ul></ul></ul><ul><ul><ul><li>Fix problems before moving forward </li></ul></ul></ul><ul><ul><ul><li>Build consensus within Chain of Value </li></ul></ul></ul><ul><ul><ul><li>Implement Rapidly </li></ul></ul></ul><ul><ul><ul><li>Consider design & construction concurrently </li></ul></ul></ul><ul><ul><li>Increased efficiency (flow & perfection) </li></ul></ul><ul><ul><ul><li>Through simultaneous evaluation instead of iterative loops </li></ul></ul></ul><ul><ul><ul><li>Only move forward with the best approach </li></ul></ul></ul><ul><ul><ul><li>Redundancy if problem discovered </li></ul></ul></ul>The Design Partnership LLP  Architects + Planners
    17. 17. Questions? Thank you for your time. Eric Peabody 415 345-3813 [email_address] The Design Partnership LLP  Architects + Planners

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