Abstract: To ensure the operation safety of 900 t girder hoisting machine, the ANSYS is used to set up
the whole 3D model for the girder hoisting machine, the finite element analysis for the girder hoisting
machine is analyzed base on the working condition. The structure composition, functional
characteristics and working condition of girder hoisting machine are introduced, then the modeling
principle and method of finite element model are proposed for girder hoisting machine. Through the
element simulation analysis, the equivalent stress and structural deformation for different working
conditions are presented, and the finite element results and the test results are discussed in details, the
result demonstrates that the simulation analysis results are consistent with the test results. Then the
cause for deviation of the finite element results and the test results are analyzed. The research results is
helpful for the design and manufacture of the girder hoisting machine.

Key words: girder hoisting machine, finite element, simulation analysis, ANSYS