【摘要】 提出了一个综合结构变更定理，进行了地基不均匀沉降引起上部钢结构损坏的非线性全过程分析，能提供结构受损过程和加固后变化的详细信息，用于张家港东海粮油工业公司机械楼钢结构现状评价和加固设计，效果良好。更多还原

【Abstract】 A comprehensive structural variation theorem is presented to carry out the full process analysis of damage of steel superstructures due to uneven ground settlement by nonlinear finite element method. The information in detail for the structural damages process and the variation after reinfereement can be obtrined for the analysis. The thoory and methed presented in this paper has been employed to the mechanical building of the Zhang Jia Gang East Sea Food and Oil Industy Company and a good result has been gained.更多还原