In the traditional design of curtain wall

engineers often ignore the effect of construction process on the safety of the curtain wall.The results of this approximate analysis method is quite different from the actual situation.The results are not credible.Especially for the high-rise buildings

the mechanical changes are complex during the construction.Its impact on the overall security of the curtain wall is unknown

so deep study is required in this field.To solve this problem

the curtain wall construction process of Shanghai Center Tower is analyzed by stiffness transferring method in this paper.The change of supporting structure stress and the sag rod deformation of the representative partition curtain wall in the construction is analyzed intensively.The safety of curtain wall construction was guaranteed by the analysis of lock-in sequence of the outriggers with explicit finite element method.The results shows that the supporting structure stress of the curtain wall is not alike in different construction stages

after the construction of the local curtain wall glass it reaches maximum and in the following stages its value falls down.The maximum vertical deformation of the sag rods exists after the construction of the glass.To ensure the safety of the curtain wall construction the outriggers should be lock-in according to a reasonable arrangement with proper time and order.