Size Effect of Element in Structural Blasting Demolition

摘要

Performed the size effect of the unit in numerical simulation of blasting demoLition. Considered three elemental sizes, which were 10, 20 and 40 cm. Adopt 40 cm element, the structure was damaged more seriously. This resulted in the bigger error in predicting the demoLition scope. The collapsed time was shorter, and the structural rush distance was farther. When adopted 10 cm, a great number of elements were divided. It is impossible to calculate for normal computer. Adopt 20 mm, the computational accuracy were increased on one hand, and ensured the feasibiLity of calculation.