In the nonlinear computation of the spiral case structure of Three Gorge Power Station,damage mechanics is introduced to study the concrete cracks from microcosmic to macrocosmic scope.

• 采用编制的正交异性三维损伤有限元程序对蜗壳结构进行损伤计算,细致地分析了钢蜗壳不同内水压力时,其外围混凝土的损伤分布规律及应力应变情况。