A method for lifting a steel arch tower

Abstract

The invention relates to a steel arch tower lifting method. An anchoring cross beam is arranged at the middle-upper part of a steel arch tower, a splicing tower frame is arranged between a second strip-shaped foundation and a third strip-shaped foundation and serves as a lifting tower frame, two groups of lifting cross beams are arranged at the top of the tower frame, and a lifting oil cylinder isarranged at the top of each group of lifting cross beams; sliding rails are arranged at the bottom of the tower, traction oil cylinders are arranged, the horizontal traction oil cylinders on the sliding rails pull sliding shoes at the root part of the steel arch tower, and relative synchronization with vertical lifting is realized, so that the lifting of the steel arch tower is completed; the gravity center of the steel arch tower can run along a preset track all the time, and the whole construction process is safe and reliable; the steel arch tower is lifted more conveniently due to the effects of the lifting cross beams and the anchoring cross beam, and the cross beams are more convenient to mount.

Description

technical field [0001] The invention belongs to the field of bridge construction, in particular to a lifting method for a steel arch tower. Background technique [0002] In recent years, with the rapid development of the national economy, the bridge construction industry in my country has also developed rapidly, and many large components with different shapes and functions have emerged. These large components have brought many difficulties to the installation and construction of bridges; for example , for the construction of steel arch towers, the traditional method generally adopts the pull-up method, but due to the limited space, it is not suitable to use the pull-up method at present. Now the vertical rotation construction method is mostly used. [0003] The vertical rotation construction method refers to the method of combining hoisting and vertical rotation during the construction process. The current vertical rotation construction method is mainly divided into two types...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of the national economy, the bridge construction industry in my country has also developed rapidly, and many large components with different shapes and functions have emerged. These large components have brought many difficulties to the installation and construction of bridges; for example , for the construction of steel arch towers, the traditional method generally adopts the pull-up method, but due to the limited space, it is not suitable to use the pull-up method at present. Now the vertical rotation construction method is mostly used.

[0003] The vertical rotation construction method refers to the method of combining hoisting and vertical rotation during the construction process. The current vertical rotation construction method is mainly divided into two types. The first is "mutual pull vertical rotation", which uses the bridge deck as a welding construction. The platform is supported by the steel arch towers on one side, and the steel arch towers on the other side are rotated vertically, so as to complete the vertical rotation of the steel arch towers on both sides; the second is to lift the steel arch towers into the air, and then The method of rotating in the air; the above two methods have certain limitations. The "mutual pull vertical rotation" needs to set up two symmetrical steel arch towers at the same time, and the vertical rotation process is more complicated and difficult to control, which greatly prolongs the The construction period; the method of vertical rotation in the air has great requirements for hoisting equipment and personnel control, and has certain limitations for the construction of super-large tonnage components;

Images