Sensitivity analysis in displacement back analysis

摘要

At first in this paper by applying the displacement back analysis to two groups of displacements in different places, the parameters are calculated. Then displacement errors are given respectively and according to them the mew parameters are calculated. Then by applying the elementary formula of sensitivity analysis, parameter sensitivity is elicited and the displacement sensitivities as well as the parameter sensitivity of every point are calculated. At last through the analysis of sensitivities some regulars are obtained and these regulars are useful in engineering practice.