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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

MODELING OF BLAST EFFECTS ON KEY STRUCTURAL ELEMENTS OF HIGH-RISE BUILDINGS

Vestnik MGSU 7/2012
  • Agafonova Vera Valer'evna - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Technical Regulations, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 109 - 113

In view of persistent threats of terrorist attacks, protection of high-rise and unique buildings and structures from the above impacts remains one of the top-priority objectives of safety and security assurance projects. The author provides an overview of blast effects on a reinforced concrete column simulated through the employment of ANSYS software package. Possible patterns of the effects are considered. The semulation is performed in three sequent stages. At Stage 1, the initial stress-strain state of the column is simulated. At Stage 2, non-stationary gas dynamics of the explosion of 50 kg of TNT and the stress-strain state of the column are simulated. At Stage 3, destruction of the column, damaged by the explosion, is analyzed. The time period of complete destruction of the column after the explosion is ~ 100 ms. Numerical simulation of the environment by LS-DYNA software system assures accurate calculations; therefore, this software programme may be used to develop reliable actions aimed at reduction of effects of the explosion in order to prevent the progressive collapse.

DOI: 10.22227/1997-0935.2012.7.109 - 113

References
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  7. Roytman V.V., Pasman H.J., Lukashevich I.E. The Concept of Evaluation of Building Resistance against Combined Hazardous Effects “Impact-Explosion-Fire” after Aircraft Crash. Fire and Explosion Hazards. Proceedings of the Fourth International Seminar, 2003, Londonderry, NI, UK, pp. 283—293.
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