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MUNITIONS MAINTENANCE COMPLEX

TYNDALL AIR FORCE BASE FLORIDA

Tyndell AFB, Florida

This 12,000 S.F. facility consists of two chambers for ammunition maintenance and inspection as well as an administrative area for 50 personnel. The ammunition maintenance area is utilized for the inspection, maintenance and packaging of missiles and bombs.

 

Project Highlights:

 

Structural Layout:

The primary criteria for the design of the munitions maintenance facility was to limit casualties in the event of an accidental detonation of the explosives being handled. For the purposes of blast protection, the structure was divided into the following areas (See Figure 1):

1.        Maintenance Bay A

2.        Maintenance Bay B

3.        Rocket Motor Test Chamber and Paint Booth

Areas 1 through 3 house varying amounts of explosive munitions and were designed to contain a blast within the building area in which it occupies. Area 4 has no blast requirements except that a blast occurring in one of the other areas must not cause any casualties in this area. The blast hazard areas of the building were designed as fully vented cubicles. In this case, the four walls were designed as blast proof surfaces while the roof is sufficiently "frangible" to provide "venting" for the two major pressures experienced in a blast, namely, the initial shock pressure and the subsequent build up of gas pressures. The term "frangible" pertains to those elements of a protective structure whose strength and mass are such as to minimize the amplification of the shock-front pressures and reduce confinement of the explosive gases. A general criteria for a frangible system is one whose weight is 10 pounds per square foot or less.

Due to the location of the maintenance facility, it is not permissible for small pieces of residue to scatter should an unfortunate blast occur. The roof was designed to blow off in a few large chunks toward the grass area which is opposite from the runway (See Figure 2).













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