ABSTRACT
With the wide application of the large-span grid structure, its safety has been paid more and more attention to. Because the influence of the difference between the completion and design of the large-span grid structure on the overall structure is not clear, it is difficult to effectively guide the operation and maintenance. The finite element calculation and sensitivity analysis method are used to obtain the sensitivity coefficients of different working conditions and grasp the deformation law of the large-span grid structure. The results show that the influence of deformation in different directions, different deformations, and different positions on the maximum stress of the structure is quite different. The stress of the beam element is more sensitive to deformation and the truss element is less sensitive to deformation.
