Research on accidental eccentricity of mass centre of structure with numerical method

In this paper, numerical method was employed to analyze eccentricity of mass centre of structure with rectangle flat induced by uncertainty of mass distribution. The result includes the probability densities curve of the distribution of mass centre and the mass accidental eccentricity. Uncertainty of mass distribution is an important element of accidental eccentricity, but the method of analyzing mass accidental eccentricity that widely accepted might not adapted to other structure with non-rectangle flat. To solve the problem, from the mathematical experiment, a new method to estimate mass accidental eccentricity is presented in this paper. The result is different from traditional method.