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Large vestibule spanning type installation method

An installation method and leap-forward technology, which can be used in transportation and packaging, conveyors, cranes, etc., and can solve problems such as difficulty in hoisting

Pending Publication Date: 2021-09-10
WUHAN YIYE CONSTR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the large-scale corridor is divided into several sections and the trusses are hoisted on the supports along the line in sequence. In special locations, it is necessary to use long-span truss sections to span special locations, but the lifting equipment itself is limited by special locations, and large-span truss sections are characterized by ultra-long, overweight, and large spans, so hoisting is difficult

Method used

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  • Large vestibule spanning type installation method
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  • Large vestibule spanning type installation method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 with image 3 As shown, in this embodiment, when installing a large-scale corridor, a certain section of the large-scale corridor needs to cross a special section—the trench 2 with an elevation of -9.50m, and there are 7 tracks 3 in the trench 2, so the trench 2 Limited space occupancy. In order to complete the spanning construction, hoist each truss section in turn, hoist the 10 large-span truss sections spanning the special section occupied by the restricted site, and hoist the remaining truss sections as a whole. The hoisting of the 10 large-span truss sections includes the following steps:

[0024] S1. Preparation stage:

[0025] With the high end as the front and the low end as the rear, the rear of the midpoint of the large-span truss section 10 is divided into two front and rear trusses (8, 6). The front truss 6 can be...

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Abstract

The invention discloses a large vestibule spanning type installation method. When a large-span truss section is hoisted, the rear position of the middle point of the large-span truss section is divided into a front truss and a rear truss, the rear truss can be erected on the front truss through a tongue-and-groove support, each truss is divided into a left truss and a right truss, a purline is installed before each truss is hoisted, a front fixing support is arranged at the front end of a special section, a temporary support is arranged at the position, corresponding to the midpoint of the large-span truss section, of the middle of the special section; a rear fixing support is arranged at the rear end of the special section; a crane lifts two front trusses on the front fixing support and the temporary support in front of the special section; two front trusses are fixedly connected through a purline; the crane hangs two rear trusses on the rear fixing support and the two front trusses at the rear of the special section; the front trusses and the rear trusses are welded at rabbets, the two rear trusses are fixedly connected through the purline, stress rods on the large-span truss section are welded and fixed, and finally, the temporary support is dismantled. According to the invention, the crane does not occupy a special section and is stable to mount.

Description

technical field [0001] The invention belongs to the field of steel structure construction, and in particular relates to a leaping installation method for a large corridor. Background technique [0002] In the metallurgical ironmaking blast furnace, the main feeding belt corridor is the bridge connecting the raw material area and the blast furnace body, and undertakes the task of conveying the raw materials into the furnace through the belt. It has the characteristics of high, long, heavy and large, so it is generally It is a large corridor. [0003] At present, the large-scale corridor is divided into several sections and the trusses are hoisted on the supports along the line in sequence. For special locations, it is necessary to use large-span truss sections to span special locations, but the lifting equipment itself is limited by the special location, and the large-span truss sections are characterized by ultra-long, overweight, and large spans, so hoisting is difficult. ...

Claims

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Application Information

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IPC IPC(8): B65G15/32B66C23/36B66C23/62
CPCB65G15/32B66C23/36B66C23/62
Inventor 黄轶张婷婷赵海莲
Owner WUHAN YIYE CONSTR ENG
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