The incompatible problem among the blocks in calculation with normal fem is solved by using the transitional element model . the scale of fem calculation is essentially reduced by use of the multi - laminated element model and the calculation precision is high 利用双线性过渡单元可以解决施工期混凝土段与段之间的用常规有限元计算时的不协调问题，在浇筑层之间采用层合单元，显著地降低了有限元的计算规模，而且计算精度高。
