Structural elements such as beam

plate and shell

are widely used in the finite element analysis. However

the geometric characteristics of structural elements may lead calculation errors in some cases. For example

when analyzing composite structures with structural elements

some problems such as stress concentration and improper simplification of the geometric position will induce rather large calculation errors. Taking the slab and girder composite structure in subway station as the analyzing object

the corresponding coun-termeasures are put forward for the purpose of engineering practicality. By using these measures

reasonable result can be obtained with general-purpose FEM software.