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CEE 424 GIS for Civil Engineers

CEE 424 GIS for Civil Engineers. Geotechnical/ Structural: High Risk Buildings in Downtown Seattle Due to Seismic Activity. Scott Watson Anthony San Gabriel Luis Millones. Shaky Past. Liquefaction. Seattle Union Station after 1965 quake. 6.8 magnitude.

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CEE 424 GIS for Civil Engineers

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  1. CEE 424GIS for Civil Engineers Geotechnical/ Structural: High Risk Buildings in Downtown Seattle Due to Seismic Activity Scott Watson Anthony San Gabriel Luis Millones

  2. Shaky Past Liquefaction Seattle Union Station after 1965 quake 6.8 magnitude Most damage is inflicted to old, brick buildings

  3. which buildings are susceptible to seismic activity? • Limited to downtown area • Distance to fault lines • Building use • Age of building • # of Stories • Structural Materials • Soil conditions (liquefaction)

  4. Geocoding • King County Department of Assessment • Too much data on residential buildings • Commercial buildings only

  5. Fault lines and Liquefaction zones

  6. Susceptible Buildings

  7. Solutions • Friction dampers • Fluid viscous dampers • Carbon fiber Reinforced Plastic (CFRP) • Fiber Reinforced Cement • External Prestressing

  8. Questions?

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