Simplified Evaluation Of A Building Impacted
By A Terrorist Explosion
Author(s)
D. Makovička & D. Makovička Jr.
Abstract
This paper determines the parameters of the explosion wave excited by a charge
planted by terrorists. A suitcase containing an industrial explosive (Danubit I,
mass 6.45 kilogram) remotely controlled by mobile telephone was placed in the
left-luggage office of a railway station. Certain simplified methods according to
various publications, according to our own experimental results and according to
3D computations based on detailed calculation modelling of the interior of the
room are compared to determine the explosive effects. Equivalent static analysis
was applied to the dynamic response of the structural elements of the room
(walls, floor, roof and windows). The damage caused to these structural elements
is weighted on the basis of the angle of fracture of the central axis / surface, and
on the basis of the limit stress state of these structures.
Keywords: explosion, room structure, simplified analysis, dynamic response,
failure prognosis.
1 Introduction
When a small charge explodes in the internal space of a building, a pressure
wave is formed by the explosion that applies a load on the surrounding internal
elements of the structure (Figure 1). The pressure effects of even a small charge
are usually high, and the primary consequence is that a window or a door
structure may be broken and the pressure is released into the surrounding areas.
Although the exhaust vents open, the load transmitted to the surrounding walls of
the room, and to the ceiling and floors, is quite high, and the corresponding
magnitude must first be estimated. This magnitude depends on numerous
Keywords
xplosion, room structure, simplified analysis, dynamic response,
failure prognosis
Related Book
Other papers in this volume
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