CN216607835U

CN216607835U - Large-section short single-box multi-chamber steel tower

Info

Publication number: CN216607835U
Application number: CN201921575587.3U
Authority: CN
Inventors: 孙蕾蕾; 黄鑫; 袁俊; 王岁利; 余超; 朱静静
Original assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Baoji Bridge Yangzhou Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Baoji Bridge Yangzhou Co Ltd
Priority date: 2019-09-22
Filing date: 2019-09-22
Publication date: 2022-05-27
Anticipated expiration: 2029-09-22

Abstract

The utility model relates to a large-section short single-box multi-chamber steel tower structure. The advantages are that: firstly, the safety risk of the whole structure manufacturing process is greatly reduced; secondly, the requirement of flatness can be greatly ensured; thirdly, a large number of auxiliary tools can be reduced; fourthly, the purposes of reducing cost and improving efficiency are achieved.

Description

Large-section short single-box multi-chamber steel tower

Technical Field

The utility model relates to a large-section short single-box multi-chamber steel tower with a steel-concrete combined section, wherein the section size of the steel-concrete combined section reaches more than ten meters, the tonnage reaches 500-600 tons, and the height of a steel tower column is 4.5-5.5 meters.

Background

The existing steel tower has smaller section and lighter tonnage, and the steel tower segments are assembled and welded into a whole. The method has the following defects: the prior art can not realize the manufacture with the cross section size of more than ten meters, the tonnage of 500-600 tons and the height of the steel tower column of 4.5-5.5 meters.

Disclosure of Invention

The design purpose is as follows: the defects in the background technology are avoided, and the large-section short single-box multi-chamber steel tower with the steel-concrete combined section of which the section size reaches more than ten meters, the tonnage reaches 500-600 tons and the height of the steel tower column is 4.5-5.5 meters is designed.

The design scheme is as follows: with the application and development of large-scale, factory and assembly of bridge steel structures, large-section steel structure bridge towers are produced. Particularly, the common adoption of the single-column steel tower increases the section size continuously, the weight is increased greatly, the challenge is brought to the manufacture of the steel tower, and particularly, the great difficulty is brought to the machining of the end surface of the steel tower for the metal contact force transmission of the end surface. The steel-concrete combined section is usually a tower section with the largest section, the heaviest tonnage and smaller height, namely a large-section short single-box multi-chamber steel tower structure. The section size of the steel-concrete combined section reaches dozens of meters, the tonnage reaches five-six hundred tons, but the height of the steel tower column is only about five meters. Such a monolithic structure cannot be realized if the prior art is adopted.

The end surfaces of the whole segment are designed into two large blocks, the end surfaces of the two large blocks are welded into an integral structure through the bearing plates after being machined, and finally, the integral horizontal face milling is carried out, so that the flatness requirement of the final integral port can be met, and the potential safety hazard is avoided.

The technical scheme is as follows: the whole section of the large-section short single-box multi-chamber steel tower consists of two mutually symmetrical large blocks (1), the end faces of the two large blocks are welded into a whole through a bearing plate (2) after being processed, the tonnage of the whole section of the large-section short single-box multi-chamber steel tower reaches 500 plus 600 tons, and the height of a steel tower column is between 4.5 and 5.5 meters.

Compared with the background art, the utility model greatly reduces the safety risk of the whole structure manufacturing process; secondly, the requirement of flatness can be greatly ensured; thirdly, a large number of auxiliary tools can be reduced; fourthly, the purposes of reducing cost and improving efficiency are achieved.

Drawings

FIG. 1 is a schematic cross-sectional view of a large-section short single-box multi-chamber steel tower.

Fig. 2 is a schematic top view of fig. 1.

Detailed Description

Example 1: reference is made to fig. 1-2. The utility model provides a whole festival section of big section short type single-box multi-chambered steel tower structure, big section short type single-box multi-chambered steel tower of short type is become by two bold bodies 1 of mutual symmetry, and welds into an entirety through bearing plate 2 after two bold bodies 1 terminal surface processing. The whole section of the large-section short single-box multi-chamber steel tower means that the section size of the steel-concrete combined section reaches tens of meters, the tonnage reaches 500-600 tons, and the height of the steel tower column is between 4.5 and 5.5 meters.

The processing technology of the end face of the large-section short single-box multi-chamber steel tower is described by the implementation of a main bridge steel tower column of a large bridge as follows: port cross-section under the steel and concrete combination section: 10740mmX17420 mm; cross section of upper port: 9203mmX14924 mm; tonnage reaches 587t, but the height of the steel tower is only 5.1 m. The integral structure adopts the processing technology of the end face of the wide-body multi-chamber deformed steel tower, and can greatly reduce the safety risk in the manufacturing process. The flatness requirement of the final integral port can be guaranteed, and potential safety hazards are avoided.

The specific process introduction:

the end faces are machined separately by dividing the entire segment end face into two large blocks, such end face profile dimensions being: 4800mmX wide 16000mmX long 5100mm, the weight is about 230t, the very big safety risk that has reduced. After the two blocks are machined, the two blocks are turned over by 90 degrees and participate in the assembly welding of the whole sections together with the bearing plates, and finally, the whole horizontal face milling is carried out. The whole horizontal milling surface can not only ensure the flatness requirement of the final whole port, but also avoid potential safety hazards.

The machining process includes the steps of machining two large blocks respectively.

Two large blocks are turned over for 90 degrees and then integrally assembled and welded with the bearing plate.

Thirdly, after the whole section is assembled and welded and is detected to be qualified, marking a machining position line of the horizontal milling surface of the upper port by taking the trimmed horizontal base line as a reference, and machining the horizontal milling surface. Because the port width is wide, need carry out the location in six times and mill the face.

The machining process of the large-section short single-box multi-chamber steel tower end face machine achieves the requirement for machining flatness of the end face machine, meanwhile greatly reduces risks, saves production cost of a large number of tool tire carriers, and achieves certain economic benefits.

It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.

Claims

1. A large-section short single-box multi-chamber steel tower is characterized in that: the whole section of the large-section short single-box multi-chamber steel tower consists of two mutually symmetrical large blocks (1), the end faces of the two large blocks are welded into a whole through the bearing plate (2), the tonnage of the whole section of the large-section short single-box multi-chamber steel tower reaches 500 plus one ton and 600 tons, and the height of a steel tower column is between 4.5 and 5.5 meters.