Moffett Hangar One Progress Review

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Navy presentation to the Moffett Field Restoration Advisory Board on March 13, 2008, regarding the structural analysis and revised Engineering Evaluation/Cost Assessment for the hangar.

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Moffett Hangar One Progress Review

  1. 1. Former NAS Moffett Field BRAC PMO WEST Hangar 1 Progress Review Scott Gromko Navy Project Manager March 13, 2008 RAB Meeting 1
  2. 2. Presentation Overview BRAC PMO WEST • Background • Structural Analysis Update • Next Steps • Questions 2
  3. 3. Background BRAC PMO WEST • Built in 1932 • Uses: – Used for lighter-than-air program – Used for fixed winged aircraft – Offices and museum 3
  4. 4. Background BRAC PMO WEST 4
  5. 5. Background BRAC PMO WEST • 1997 - PCBs detected in settling basin sediment • 2003 - NASA studies identified Hangar 1 as a source • NASA sampled: – Building materials – Stormwater – Air – Wipe-samples inside 5
  6. 6. Background BRAC PMO WEST 6
  7. 7. Background BRAC PMO WEST 7
  8. 8. Structural Analysis Update BRAC PMO WEST • Exceltech Consulting, Inc. • Established in 1987 • -Site Civil Engineering - Structural Engineering - Seismic Retrofit and Analysis - Blast/Anti-Terrorist Force Protection (ATFP) Design - Construction Services 8
  9. 9. Structural Analysis Update BRAC PMO WEST • Abdul Chahim, P.E., S.E. – 28 years of structural engineering experience • Steel structure projects – VAQ Trainer Building Whidbey Island, WA – West Farm Food Processing Plant, ID – Shore Operation Building, Seattle, WA – Air National Guard fire/crash rescue station, Portland, OR – 10-story Woodland Condominium, Lexington, KY – 76,000-square-foot Federal Way community center 9
  10. 10. Structural Analysis Update BRAC PMO WEST • Hangar 1 structural system – Gravity system • Three-hinged arch system supported on A-Frames – Lateral resisting system • The arch and the steel bracing trusses between the arches 10
  11. 11. Structural Analysis Update BRAC PMO WEST 11
  12. 12. Structural Analysis Update BRAC PMO WEST • Conducted structural analysis inspections • Dec. 12, 2007 • Jan. 11, 2008 • Feb. 7, 2008 • Built computer model • Includes entire building • Over 25,000 structural members • Numbering system based on drawings 12
  13. 13. BRAC PMO WEST 13
  14. 14. Structural Analysis Update BRAC PMO WEST 14
  15. 15. Structural Analysis Update BRAC PMO WEST 15
  16. 16. Structural Analysis Update BRAC PMO WEST 16
  17. 17. Structural Analysis Update BRAC PMO WEST 17
  18. 18. Structural Analysis Update BRAC PMO WEST 18
  19. 19. Structural Analysis BRAC PMO WEST 19
  20. 20. Structural Analysis Update BRAC PMO WEST – Inspect and summarize site conditions – Build the computer model – Calculate input parameters – Identify any areas of unacceptable structural integrity – Present options and costs for areas of retrofit, if necessary 20
  21. 21. Next Steps BRAC PMO WEST – Complete structural analysis – Incorporate structural analysis findings into revised EE/CA – Release revised EE/CA for review and comment – Public meeting to receive comments – Issue Action Memorandum 21
  22. 22. Questions BRAC PMO WEST 22
  23. 23. Point of Contact BRAC PMO WEST Mr. Darren Newton BRAC Environmental Coordinator Program Management Office West 1455 Frazee Road, Suite 900 San Diego, CA 92108-4310 darren.newton@navy.mil 619-532-0963 23

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