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A method for suspending a steel hanging box by using a steel crossbeam of a drilling platform

A technology for drilling platforms and steel beams, which is applied in caissons, buildings, infrastructure engineering, etc., can solve the problems of low turnover efficiency, long construction period, and large amount of steel, so as to ensure construction quality, reduce construction costs, and shorten bearing capacity. The effect of the stage construction cycle

Active Publication Date: 2019-09-24
中铁二十二局集团第一工程有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the common problems of traditional steel suspension boxes, such as large amount of steel, long construction period, and low turnover efficiency, which are not suitable for construction in shallow sea areas, deep silt layers, and small-volume caps, and provide a Method for suspending steel hanging box by steel beam

Method used

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  • A method for suspending a steel hanging box by using a steel crossbeam of a drilling platform
  • A method for suspending a steel hanging box by using a steel crossbeam of a drilling platform
  • A method for suspending a steel hanging box by using a steel crossbeam of a drilling platform

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specific Embodiment approach 1

[0040] Specific implementation mode one: what this implementation mode records is a kind of method that utilizes drilling platform steel beam to suspend steel hanging box, and the specific steps of described method are as follows:

[0041] Step 1: Remove the cap area of ​​the drilling platform: remove the platform panel, I20a I-beam beam, and I36a I-beam longitudinal beam in the 6.25m area, and retain the drilling steel platform Steel pipe piles and double I45a I-beam beams;

[0042] Step 2: Install the upper lifting distribution beam: install 2 double-piece [40b channel steel longitudinal beams longitudinally on the top of the double-piece I45a I-beam beam on the drilling platform, and weld 10 pieces at the double-sided flange plates of the double-piece channel steel 300×300×10mm panel, 10 panels spliced ​​into one;

[0043] Step 3: Install fine-rolled threaded steel and hanging box bottom joists: hoist two double-piece I25a I-steel hanging box bottom joists to the design p...

specific Embodiment approach 2

[0049] Specific embodiment 2: A method of using the drilling platform steel crossbeam to suspend the steel suspension box described in the specific implementation mode 1. In step 2, the vertical beam is installed on the top of the drilling platform steel beam as the upper part of the suspension box for hoisting and distribution beam.

specific Embodiment approach 3

[0050] Specific embodiment three: a kind of method that utilizes drilling platform steel crossbeam to suspend steel suspension box described in specific implementation mode one, described each suspension box adopts 4 Finished rebar suspending support.

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Abstract

The invention discloses a method for suspending a steel hanging box through drilling platform steel beams and belongs to the technical field of bridges. The method comprises the steps that a drillingsteel platform bearing region is demounted, upper lifting distributive girders are installed, finish rolling threaded steel bars and bottom supporting girders of the hanging box are installed, the whole steel hanging box is downwards put, bottom sealing concrete is poured, bearing platform construction is carried out, the upper lifting distributive girders, the finish rolling threaded steel bars and the bottom supporting girders of the hanging box are demounted to be reused, and a side die of the hanging box is demounted to be reused. By means of practice, it is proved that under the situationthat the size of each bearing platform structure is relatively small and the number of the bearing platform structures is relatively large in neritic regions, the bearing platform construction periodcan be effectively shortened through the method, the construction time of working procedures is reasonably grasped according to the tidal changes, and the single-base bearing platform construction period is 6 days (according to an original construction scheme, brackets need to be welded to a drilled pile casing, the welding time and the demounting time are relatively long, and the single-base bearing platform construction period is 10 days.). The turnover rate of the hanging box is increased. The construction cost is effectively reduced while the construction quality is guaranteed, and certain reference significance is achieved for water bearing platform construction in future.

Description

technical field [0001] The invention belongs to the technical field of bridges, and in particular relates to a method for suspending a steel hanging box by using a steel crossbeam of a drilling platform. Background technique [0002] The traditional steel hanging box construction process is relatively complicated; the amount of steel input is large, and a steel cofferdam needs to be erected outside the steel hanging box; the construction period is long, and the turnover efficiency of materials is low; the geological requirements of the steel hanging box cofferdam on the river (sea) bed surface It is difficult to use in deep silt layer geology; it is not easy to dismantle and turn over the use of steel casings to erect steel beams and fine-rolled rebar. It is not suitable for construction in shallow sea areas, deep silt layers, and small-volume caps. Contents of the invention [0003] The purpose of the present invention is to overcome the common problems of traditional st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D23/08E02D27/14
Inventor 张如意王志广陈强刘佳贺杨伟超林玉明侯文博何淼陈橙新刘恩龙
Owner 中铁二十二局集团第一工程有限公司