Giant crane beam mounting method

An installation method and technology of crane girders, which are applied in the field of installation of extra-large crane girders, can solve problems such as no solutions, and achieve the effects of large thickness ratio difference, large span, and reduced manufacturing difficulty

Active Publication Date: 2009-01-21
MCC TIANGONG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, due to the limitation of transportation and manufacturing process, it is impossible to directly manufacture crane girders with a length of more than 60 meters. The general length of crane girder components is more than 12 to 30 meters. The current cranes for hoisting construction generally have a maximum lifting capacity of 150-200T
Since this type of installation project is a special case, there is no good solution yet

Method used

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  • Giant crane beam mounting method
  • Giant crane beam mounting method
  • Giant crane beam mounting method

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Embodiment Construction

[0018] As shown in FIG. 1 , the extra-large crane girder structure includes an upper flange 1 , a web 2 , a lower flange 3 and ribs 7 . The height between the upper wing plate 1 and the lower wing plate 3 is about 7 meters, the width is about 1 meter, and the weight reaches 220 tons.

[0019] A method for installing an extra-large crane girder, comprising the following steps: 1. First, a temporary support is set up on the ground at a 1 / 3 span of the crane girder installation site, and a jack is provided on the platform of the support to adjust the butt joint of the crane girder in a small amount. Levelness and camber; the purpose of setting up temporary supports is to provide temporary support for the aerial docking of crane girder components in the future.

[0020] 2. On-site assembly of the crane beam, using the horizontal assembly method on the ground, unload the crane beam components of the left section 4, the middle section of the crane beam 5, and the right section of th...

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Abstract

The invention relates to a construction method, in particular to a method for installing super-large crane beams, solving the technical problems of the prior art in the installation of large-span and large-mass crane beams. The method for installing the super-large crane beams comprises the following steps: a temporary bracket is first put up on the ground at one third of the span of a crane beam installation position; a crane beam is assembled on site; a left-segment crane beam component and a middle-segment crane beam component which are welded together are integrally lifted in place by use of two cranes; the left-segment crane beam component is partially fixed with a steel column connecting part; the other end of the middle-segment crane beam component falls on the bracket; a right-segment crane beam component is lifted to the height in accordance with the middle-segment crane beam component by use of another crane; and the right-segment crane beam component and the middle-segment crane beam component are paired and welded in the air. The method is applicable to the installation of the crane beam of which the length is over 60 meters and the mass is over 220 tons. The method has the advantages of high safety performance, short construction period, convenient construction operation and good engineering quality.

Description

technical field [0001] The invention relates to a construction method, in particular to a method for installing an extra-large crane beam. Background technique [0002] In the construction of metallurgical industrial plants, large crane beams need to be installed to meet the installation, use and process requirements of the cranes in the workshop. The column spacing of the existing workshop structure is generally relatively small, and the length ranges from 12 to 30 meters. This kind of crane girder is generally hoisted directly after the ground is manufactured, and the design of some workshops with special requirements has considered the straddle vehicle process, and the column spacing is required to reach more than 60 meters. Up to 6.8 meters, and the design flange plate and web thickness ratio is large, and the weight exceeds 220T. At present, due to the limitation of transportation and manufacturing process, it is impossible to directly manufacture a crane beam with a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/04B66C13/08B66C7/00
Inventor 项元弟邢成峰刘伟杰彭世萍马英志杨光王红波马平太王志国张旭亮
Owner MCC TIANGONG GROUP
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