Optimal Analysis & Numerical Simulation For Demolishment Of Frame-structured Building Due To Controlled Blasting

Nowadays the blasting disintegration of building in frame structure has become focus in the field of city blasting disintegration engineering and theory research and is also one main means of city disintegration engineering in the future.As one of effective methods of building wreck, explosive wreck is increasingly applied in the field of it.In order to improve the probability of the blasting disintegration in control and in state of foreseen, based on the synthetical analysis to problem in the blasting disintegration of building, this article discusses the whole project of the blasting disintegration of building in control and analyzes the main parameters of the blasting disintegration of building and then from it concludes the relation equation of the influence of component steel on the amount of dynamite. In addition, the article puts forward the relations of the dimension of gap and time difference in the blasting disintegration of building with the height of building when the building capsizes breadthwise.According to distorted and destructive characteristic of reinforced concrete component, based on the whole mechanics model of reinforced concrete, the article makes numerical simulation to the collapse course of building to get the regulation of collapse and movement and destruction of frame-structure building by applying ANSYS software to this course. This lays a theoretical foundation on the blasting disintegration project and optimized blasting parameters of frame-structure building. The result is significant practically resulted from numerical simulation about the distributing regulation of stress of frame-structure building and the forming time of plasticity ream.