Hindawi Shock and Vibration Volume 2018, Article ID 3819183, 7 pages https://doi.org/10.1155/2018/3819183 Research Article Blast Demolition Study of Guyed Masts Abinet K. Habtemariam , Volkmar Zabel , Marcelo J. Bianco, and Carsten Ko¨nke Institute of Structural Mechanics, Bauhaus-Universit¨at Weimar, Marienstr 15, 99421 Weimar, Germany Correspondence should be addressed to Abinet K. Habtemariam;
[email protected] Received 30 April 2018; Revised 3 July 2018; Accepted 9 July 2018; Published 26 August 2018 Academic Editor: Roberto Nascimbene Copyright © 2018 Abinet K. Habtemariam et al. )is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Demolition of guyed masts is usually carried out by cutting down some of the supporting guy cables using an explosive in such a way that the mast can fall into the desired direction. Without the cable supports, guyed tubular masts are very slender structures which are susceptible to local buckling based on the internal force distribution. If this local buckling occurs at the early stage of the demolition processes, it can cause uncertainty in the failure mechanism. )e risk of undesirable demolition outcome due to this uncertainty can be mitigated by using controlled detonation setups. In this paper, a sensitivity analysis is presented using a case study to determine the influence of the explosive detonation time on the collapse development and pattern of the guyed mast. )en, the results of the sensitivity analysis are systematically categorized using cluster analysis to show possible types of collapse regimes which can be used to setup a controlled demolition scheme.