Dynamic Response Of An Office Building Loaded
By An Explosion-generated Air Wave
Author(s)
D. Makovička & D. Makovička Jr.
Abstract
This paper deals with determining the dynamic response of a standard office
building to a nearby explosion due to a charge of explosives typically concealed
in a motor vehicle. This particular case concerns the arrival of a truck with a
terrorist charge of explosives initiated at some distance from the building. The
structure selected for the dynamic analysis is a simple four-storey building with
masonry walls and reinforced concrete floors, of a type widely used for
administrative purposes. The response of the structure loaded by the pressure
wave was computed by the methodology of equivalent static analysis, and a
direct dynamic analysis was also made. The results of the two methods are used
for a comparison of their information capacity with reference to the actual
behaviour of the structure.
Keywords: building, explosion load, dynamic response, damage.
1 Load due to the explosion effect
The effect of the magnitude of the explosion load was determined for different
magnitudes of the explosive charge and for different distances from the structure
of the assessed building. In this case, the explosion of the charge can be
considered as a surface explosion of a concentrated charge for all assessed
variants of the source location.
Simplification of the charge of explosives in a truck to a concentrated charge
is justified, since even in the case of a relatively large quantity of explosives (of
the order of hundreds of kilograms) the whole charge will explode
simultaneously at the moment of initiation.
Keywords
building, explosion load, dynamic response, damage.
Related Book
Other papers in this volume
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