| By studying the implosion demolition projects, the technical characteristics is summarized and analysed. Adopting nonlinear static analysis method and analytical mechanics method, the author discusses the collapsed mechanism of the structure. This paper systematically tests and verifies the concrete constitutive MAT159 prepared to use in LS-DYNA software, and through the separating constrained reinforced concrete method analyses the demolition of bottom column of 10-stories 5-spans, as well as structural response, internal force evolution of remain structural member and the crictical destabilization condition. Finally the paper analyses the effects on structure collapse by different sequential removal.
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