Aircraft Maintenance Hangar - Bangor, Maine

Location: Bangor, Maine

Client: Maine Army National Guard

Completion Date: 2012 (estimated)

This new 78,000-square-foot aircraft maintenance hangar will replace the existing 45-year-old maintenance hangar located at the Bangor International Airport in Bangor, Maine. The project comprises a long-span aircraft maintenance bay, general-purpose maintenance shops, a second floor administration area and building utility spaces.

  • Prime architecture/engineering services
  • Planning and programming charrette
  • Local subcontracting for geotech and survey services
  • Micro-Computer Aided Cost Estimating System (MCACES) and Parametric Cost Estimating System (PACES) cost estimates
  • On-site monthly construction progress reviews and shop drawing review

The site is at the northwest corner of the existing light duty apron, east of the existing T9 hush house and west of the existing parking area west of the existing hangar. Demolition includes removal of existing pavements, foundations and utilities and deconstruction and removal of the existing hangar after new construction is complete. Site improvements include new utilities, new apron, drainage improvements, fencing, drives, parking lots and associated landscaping.

The pre-engineered metal building structural system of the hangar bay will be long-span steel truss frames or deep plate girder frames. The pre-engineered metal building system of the adjoining shops and administration areas will be standard plate girder frames with light-gage Z purlins to support the roof. The structure will be supported on shallow foundations. Exterior walls will be constructed of vertical and horizontal pre-finished insulated metal panels, translucent panels, brick veneer and exposed concrete stem wall. The composite roofing system will be a pre-finished structural standing seam metal roof over rigid insulation on a pre-finished metal liner panel. Horizontal sliding doors with individually operated leaves and a separate tail door will allow aircraft access.

Plumbing systems will include compressed air, breathing air, aircraft wash and soap concentrate, and domestic hot and cold water. Mechanical HVAC systems include in-floor radiant heat with back-up forced air for the hangar, and four-pipe forced air system with fan coil units for shops and administrative space. Chilled water will be provided by a packaged, scroll, air cooled chiller (approximately 70 ton), and hot water will be provided by three 40 percent capacity condensing, natural gas-fired hot water boilers.

The hangar will be protected by an overhead pre-action fire sprinkler system and a supplemental low-level high expansion foam system. All other areas of the building will be protected by a hydraulically designed wet-pipe automatic sprinkler system.

Electrical systems include primary and secondary power, lighting, grounding, 400-hertz power, fire alarm, voice and data cabling, public address system, CATV/CCTV, and security and alarm.

The project will be Leadership in Energy and Environmental Design (LEED®) Silver Certified under the U.S. Green Building Council Version 2.2 guidelines.