Abstract:With the heightening and deepening of the underground tank structure, it is more and more difficult to control the internal force deformation of its support and main structure. Through the engineering example, the structure design of the underground tank with the lining frame layer is analyzed and studied, the influence of the position and stiffness of the lining frame layer on the supporting structure is discussed, and the structure design of the wall and lining frame layer of the underground tank structure is analyzed and studied. The results show that the position and stiffness of the lining frame layer have an important effect on the internal force deformation of the main body and the supporting structure. The internal force deformation of the supporting structure and the lining frame should be considered comprehensively in the design, and its position and stiffness should be designed reasonably. The structural design of the lining frame layer should increase the design of the normal limit state of use in the bracing changing condition, and the envelope design with other working conditions is carried out.