Access Control Points: Reducing a Possible Blast Impact by Meandering

Larcher, Martin; Georgios, Valsamos; Karlos, Vasilis

doi:10.1155/2018/3506892

Cited by 5 publications

(3 citation statements)

References 16 publications

(18 reference statements)

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“…While the use of barriers is more common outdoors, Santos et al (2018) discuss the role of a 'meandering wall' placed ahead of an access control zone inside a building. This could be helpful, in spaces such as in a hotel lobby, to mitigate the effect of an explosion from a luggage bomb.…”

Section: Additional Barrier Parametersmentioning

confidence: 99%

Blast wave interaction with structures – An overview

Isaac

Alshammari

Pickering

et al. 2022

International Journal of Protective Structures

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Blast–obstacle interaction is a complex, multi-faceted problem. Whilst engineering-level tools exist for predicting blast parameters (e.g. peak pressure, impulse and loading duration) in geometrically simple settings, a blast wave is fundamentally altered upon interaction with an object in its path, and hence, the loading parameters are themselves affected. This article presents a comprehensive review of key research in this area. The review is formed of five main parts, each describing: the direct loading of a blast wave on the surface of a finite-sized structure; the modified pressure of the blast wave in the wake region of three main obstacle types – blast walls, obstacles, wall/obstacle hybrids; and finally, a brief description of some methods for predicting loading parameters in such blast–obstacle interaction settings. Key findings relate to the mechanisms governing blast attenuation, for example, diffraction, reflection (diverting away from the target structure), expansion/volume increase, vortex creation/growth, as well as obstacle properties influencing these, such as porosity (blockage ratio), obstacle shape, number of obstacles/rows, arrangement and surface roughness.

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Section: Additional Barrier Parametersmentioning

confidence: 99%

Blast wave interaction with structures – An overview

Isaac

Alshammari

Pickering

et al. 2022

International Journal of Protective Structures

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“…A combination of both requirements, for external and internal explosions in one building envelope is difficult to achieve. Further information about this issue can be found in Larcher et al (2018).…”

Section: Explosions Inside Buildings (Internal Explosions)mentioning

confidence: 99%

Design methods of blast resistant façades, windows, and doors in Germany: a review

Woerd

Wagner²,

Pietzsch³

et al. 2022

Glass Struct Eng

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Explosion events represent an extraordinary action for buildings and especially for the building envelope. In addition to accidents in chemical plants or during transport of explosive substances, the threat of terrorist attacks has increased in recent years. Façade constructions, windows, and doors represent weak points in the event of an incident, through which blast waves can enter the building. Debris and fragments resulting from the failure of building components endanger people inside and outside the building. For structures that are threatened, appropriate elements with protective properties must be chosen so that an acceptable level of safety is achieved. The design and execution of a sufficiently blast-resistant building envelope is not a trivial task. In limited cases, necessary protection can be achieved by use of certified products. Since buildings in need of protection mostly have high architectural demands, standard elements can usually not be used. Or the blast load used for certification deviates greatly from the assumed blast load for the threat scenario. There are several methods to verify the explosion resistant properties of façades, windows, doors, etc., e. g. experimental methods, numerical methods, engineering approaches and empirical methods. In this article, an introduction to explosions and their effect on the building envelope is given. Methods for verification of blast resistance are presented and critical discussed. The article presents an overview of the state of the art in practice with a focus on Germany.

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“…The graphic depicts the injuries caused by the first blast waves; however, the after-burning effects are not accounted for. Deaths resulting from blast pressure may be divided into three categories: head trauma, general trauma, and lung damage [4].…”

Section: The Effects Of the Explosion On Individuals And Structuresmentioning

confidence: 99%

A Review on Numerical Modelling of Brick Masonry Structures Against Blast Load

2022

IRJMETS

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Examining the number of persons killed and the amount of money lost in major terrorist attacks over the last few decades indicates a shocking rising trend. Due to the prevalence of terrorist acts and the frequency with which engineering structures fail under blast stress, scientists and structural engineers have lately been interested in this issue. Since the widespread accessibility of small explosive charge devices containing prevailing and long-range components of explosives, the danger of explosions has grown considerably. As a result, it is vital to immediately study and develop structures that can endure these extreme stress levels, as they may avert such disasters. The objective of a blast load study is to predict how a structure will react to explosion loads. This research is a literature review of the damaging effects of blast variables such as incidence angle, standoff distance, explosive type, and charge weight. In addition, it would be too expensive to test each prototype experimentally to sustain the explosion load. Consequently, several computational based softwares predicting blast loads have been investigated, as well as particular strategies that may be adopted to mitigate the effects of blast pressure. This paper gives basic information on blast theory to assist researchers and structural engineers in understanding this particular kind of stress.

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Access Control Points: Reducing a Possible Blast Impact by Meandering

Cited by 5 publications

References 16 publications

Blast wave interaction with structures – An overview

Blast wave interaction with structures – An overview

Design methods of blast resistant façades, windows, and doors in Germany: a review

A Review on Numerical Modelling of Brick Masonry Structures Against Blast Load

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