Upside-down method of steel tubular structure inner cone

Abstract

The invention relates to an upside-down method of a steel tubular structure inner cone. The method comprises the following steps: a. preparing an inner cone; b. assembling and depositing the lower segment of the inner cone; c. fixing the highest segment of the inner cone; and d. installing the lower segment of the inner cone. Compared with the prior art, the upside-down method of the invention installs the outer tube body and the inner cone separately and adopts fission upside-down installation method to install the inner cone so as to ensure the simplification of positioning in installation process, realize the accurate installation and perfect connection of the inner cone and effectively reduce the lifting weight of the structure; in addition, lifting machines with low cost are used to complete the installation of the inner cone so as to reduce the capital investment and increase the work efficiency of the lifting process.

Description

Inversion method of cone in steel cylinder structure technical field The invention relates to a method for installing an inner cone in a construction project, in particular to an inversion method for an inner cone in a steel cylinder structure. Background technique In the traditional structural construction process, the installation of the inner cone is more difficult. Generally, the inner cone and the outer cylinder are assembled into a whole in the ground work area or the inner cone is assembled into a whole separately, and then the upright method is used for hoisting ;Adopt the method of assembling with the outer cylinder into a whole hoisting method, the overall weight of the structure is relatively large, and the lifting performance requirements of the hoisting machinery on the construction site are relatively high. If the installation height of the structure is also large, the cost of using high-performance hoisting machinery The investment will be increased; and the...

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Problems solved by technology

In the traditional structural construction process, the installation of the inner cone is more difficult. Generally, the inner cone and the outer cylinder are assembled into a whole in the ground work area or the inner cone is assembled into a whole separately, and then the upright method is used for hoisting ;Adopt the method of assembling with the outer cylinder into a whole hoisting method, the overall weight of the structure is relatively large, and the lifting performance requirements of the hoisting machinery on the construction site are relatively high. If the installation height of the structure is also large, the cost of using high-performance hoisting machinery The investment will be increased; and the method of assembling the inner cone separately and installing it upright will relatively reduce the structural weight, but because the diameter of the upper opening of the inner cone is the same as the inner diameter of the outer cylinder, it will be affected by the structural ellipse during its installation. Due to the influence of degree deviation, when the inner cone is installed downward in the outer cylinder, it will not be able to be installed, and the accuracy of its installation position cannot be guaranteed, which also seriously affects the work efficiency.

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