16
O. Shymanovskyi et al.
on bridges and methods for eliminating their consequences are examined, taking
into account the actual state of their structural members determined by the results
of special surveys. The method is described for consideration of detected defects
of bridge structures in design models of bridge constructions and of the blast wave
impact, in order to assess the influence of these factors on the stress–strain state of
bridge structures. The most probable variants of bridge structures destruction are
sequentially considered, the most likely schemes of bridge structures destruction
are determined and design solutions for replacing damaged sections of the bridge
superstructure are proposed.
Keywords Bridge · Reconstruction · Destruction · Attack
1 Introduction
It is clear that the probability of a terrorist threat is directly related foremost to objects
of strategic importance, in particular to out-of-class bridges, the proper functioning
of which is undoubtedly the key to stable transport connection. Therefore, we will
consider the variants of acceptable destruction of some out-of-class bridges as a
result of terrorist attacks and methods of their fast reconstruction.
1.1 Forecast Consequences of Terrorist Attacks and Methods
for Their Elimination
It seems indisputable that the main and most acceptable method to comprehensively
avoid the destructive effect of the blast wave on buildings and engineering structures is to prevent the terrorist act per se. An assessment of such threats and applied
security measures to reduce the corresponding risks are described in detail in articles [1, 2]. Otherwise, that is, in view of a terrorist attack that is likely to occur,
in order to minimize its consequences, it is necessary to consider beforehand not
only potential scenarios for destruction of the object, but also methods for its fast
reconstruction. And therefore, the following are conceivable variants for the bridge
structures’ destruction as a result of the terrorist attack and design solutions for the
necessary reconstruction work on the example of two out-of-class bridges in the city
of Kiev across the Dnieper River: the Paton Bridge and the road part of the Darnytsky
Rail-Road Bridge crossing.
2 Paton Bridge Across Dnieper River
Brief description of bridge structures. The bridge was built in 1953 (Fig. 1).
O. Shymanovskyi et al.
on bridges and methods for eliminating their consequences are examined, taking
into account the actual state of their structural members determined by the results
of special surveys. The method is described for consideration of detected defects
of bridge structures in design models of bridge constructions and of the blast wave
impact, in order to assess the influence of these factors on the stress–strain state of
bridge structures. The most probable variants of bridge structures destruction are
sequentially considered, the most likely schemes of bridge structures destruction
are determined and design solutions for replacing damaged sections of the bridge
superstructure are proposed.
Keywords Bridge · Reconstruction · Destruction · Attack
1 Introduction
It is clear that the probability of a terrorist threat is directly related foremost to objects
of strategic importance, in particular to out-of-class bridges, the proper functioning
of which is undoubtedly the key to stable transport connection. Therefore, we will
consider the variants of acceptable destruction of some out-of-class bridges as a
result of terrorist attacks and methods of their fast reconstruction.
1.1 Forecast Consequences of Terrorist Attacks and Methods
for Their Elimination
It seems indisputable that the main and most acceptable method to comprehensively
avoid the destructive effect of the blast wave on buildings and engineering structures is to prevent the terrorist act per se. An assessment of such threats and applied
security measures to reduce the corresponding risks are described in detail in articles [1, 2]. Otherwise, that is, in view of a terrorist attack that is likely to occur,
in order to minimize its consequences, it is necessary to consider beforehand not
only potential scenarios for destruction of the object, but also methods for its fast
reconstruction. And therefore, the following are conceivable variants for the bridge
structures’ destruction as a result of the terrorist attack and design solutions for the
necessary reconstruction work on the example of two out-of-class bridges in the city
of Kiev across the Dnieper River: the Paton Bridge and the road part of the Darnytsky
Rail-Road Bridge crossing.
2 Paton Bridge Across Dnieper River
Brief description of bridge structures. The bridge was built in 1953 (Fig. 1).