High-rise building mechanical demolition method based on numerical simulation

Abstract

The invention discloses a high-rise building mechanical demolition method based on numerical simulation. The method comprises the following steps: finding out relevant data of the high-rise building required by modeling, establishing a model of the high-rise building, selecting the position of a simulation notch, selecting the notch length of the high-rise building during toppling, determining a demolition and collapse direction, carrying out notch field positioning, and carrying out notch mechanical processing until the high-rise building topples smoothly. On the basis of the principle, ANSYS / LS-DYNA numerical simulation software is adopted for carrying out toppling simulation on the high-rise building; the optimal notch length is determined through numerical simulation. The high-rise building mechanical demolition method has the advantages that the high-rise building mechanical demolition method is simple in operation, notch treatment is performed by machinery, safe and controllableconstruction requirements are met, toppling demolition of the high-rise building is achieved. The defects of blind construction of mechanical demolition and uncontrollable safety factors are effectively overcome, and the requirements of high-rise building mechanical demolition operation safety, controllability, low cost and high speed are met.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a method for mechanically dismantling towering structures based on numerical simulation. Background technique [0002] With the continuous development of society, the tall structures in the city, such as old chimneys, water towers and cooling towers, are no longer suitable for the needs of urban development, seriously affecting the environment or city appearance. Transformation will exit the stage of history. At present, the demolition methods of towering structures mainly include manual demolition, mechanical demolition and blasting demolition: 1) Manual demolition operators should stand on a stable structure or scaffold to operate, and the demolition time is long and the labor cost is extremely high; 2) Mechanical demolition The demolition speed is fast and the cost is low, but the safety factor is difficult to control, the construction is blind, and ...

AI Technical Summary

Problems solved by technology

At present, the demolition methods of towering structures mainly include manual demolition, mechanical demolition and blasting demolition: 1) Manual demolition operators should stand on a stable structure or scaffold to operate, and the demolition time is long and the labor cost is extremely high; 2) Mechanical demolition The demolition speed is fast and the cost is low, but the safety factor is difficult to control, the construction is blind, and the time point of the collapse of the structure is difficult to predict; 3) The blasting demolition construction speed is fast, the safety factor is relatively controllable, and the timing blasting demolition can be accurately carried out. However, when blasting operations are carried out in cities, the approval procedures are relatively complicated, the safety management requirements are extremely high, and the construction costs are relatively high.

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