Phase II: Alternative A

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Phase II Alternative A

• James Smith Anthony Yamat David Freese
  Jamie Suttie
• Haley Runa Steve McGee Ramadan Greva

2/29/08
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Criteria

• Follow general path layout provided by senior
  project engineer
• Design path connecting 13 pods
• Explore multiple path widths
• Utilize heating elements throughout concrete
  walkways
• Minimize fill required
• Keep elevation differences between path and slope
  less than 3 feet
• Include 2 bridges spanning old C St corridor
• Connect existing utilities to building

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Site Layout

• Plan view of typical path design.

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Path Design Concept Alternatives

• 10-foot wide path
• 20-foot wide path
• Bi-directional path

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Typical 10-foot wide path

• This design would require little to no fill and
  no downslope retaining wall. There would be an
  upslope retaining wall.

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Typical 20-foot wide path

• This design would require both cut and fill as
  well as up- and downslope retaining walls.

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Typical bi-directional path

• This design would require cut and fill, up- and
  downslope retaining walls as well as additional
  support from an interior retaining wall. Concept
  includes periodic median-style landscaping boxes.

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Additional Path Features

• 6 inch thick concrete
• Standard 3.5 foot deep footings for retaining
  walls
• Minimal pathway slope
• Height between path and slope kept below 2 feet
  for 10-and 20-foot path design widths, below 3
  feet for bi-directional path
• 25-foot spacings between constant elevations for
  each pod insertion
• 216 ft3 cut and 304 ft3 fill for 20-foot wide
  path

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Additional Path Features Continued

• No cantilever required
• Initial slope calculations indicate stability
  for worst case seismic loading on retaining
  walls passive pressure at 5949 lbs/unit foot is
  less than active pressure at 2484 lbs/unit foot

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Bridge Concept Design Features

• Suspension-style
• Space truss construction

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Additional Bridge Features

• Both bridges same design
• 10-foot wide heated concrete deck
• Approximate 100-foot span
• Concrete abutments and suspension cable anchors

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Future Work

• Utility connections
• Bridge design
• More complete soil profiling
• Fitting walkways around path turns

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Questions and Suggestions