Allegion

Bomb Blast Protection
 


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Bomb Blast Doors
Specifiers Guide





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Bomb Rated Doors 

Bomb Rated Automated Openings

In order to produce an elegant solution that provides the required protection, every effort has been made to maintain the appearance and functionality of the bomb blast doors with their existing bi-parting door range. Special features include:

  • Increased strength of the supporting head track and door running system, whilst maintaining the flexibility and ductility of the door framing components
  • Enhanced drive motors, running gear and operating system to cope with heavier-duty doors
  • Multi-laminated glass, with anti glass shard (NS) capability and special structural bonding of glass to door frame
  • Anti-Jump runner-system that restricts the door from ‘jumping’ the track when experiencing the high force of an explosion
  • Post blast protection that acts as a barrier to physical attack by unauthorised/forced entry

Certification

  • Compliance of ISO and GSA International standards (test certificates available on request)

Application

  • Transport hubs, military establishments, government offices, commercial buildings, chemical plants and research centres


Testing Overview - Test 1

Equivalent 100kg TNT at 45m

The external images shown below are stills, extracted from a video of the tests. The internal shots were taken using a high speed video camera mounted inside the test cubicle. In Test 1 the shockwave hits the doors approximately 90ms (milliseconds) after detonation.

 

 
The positive blast pressure can be seen impacting on the doors. The glass cracks - but crucially does not splinter - as the doors deflect into the test cubicle


A split-second later the negative phase of the explosion exerts tremendous force on the door frames and glass panels, as it sucks the doors outwards

As the negative pressure reduces, the door returns to a centralised position. The only components seen to be detached are the ABS sensor and a rubber seal
 

 

 


Testing Overview - Test 2

Equivalent 100kg TNT at 25m

The external images shown below are stills, extracted from a video of the tests. The internal shots were taken using an ultra high speed video camera mounted inside the test cubicle. In Test 2, the shock wave hits in approximately 40ms.


Again, the positive blast pressure can be seen impacting the doors - but with greater force. The resistance of the doors however is similar to that in Test 1. 

At it's peak the blast forces the meeting stiles apart but does not dislocate the doors from the track.

Returning to rest, the doors and glass - although clearly damaged - are held in place 




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