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Super sized iron piece high precision mounting construction method

A construction method and ultra-large technology, applied in the processing of building materials, construction, building construction, etc., can solve the problems of many anchors, increase construction costs, and easy deformation of iron parts, so as to reduce construction costs and achieve good use effects , Guarantee the effect of installation accuracy

Active Publication Date: 2008-10-08
YANJIAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, super-large iron parts in industrial and civil buildings are mostly used in important structures or important parts of structures. The installation accuracy of iron parts such as levelness and axis position is relatively high. However, due to the characteristics of large size, heavy weight, many anchors, and dense reinforcement , the processing and installation of iron parts are relatively difficult. If the overall hoisting of iron parts is considered, the construction cost will be greatly increased. At the same time, the iron parts are easily deformed during the hoisting process, and it is difficult to move the iron parts after they are in place, resulting in installation accuracy.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0024] Example: High-precision installation and construction method for super-large iron parts, construction process: cutting and dividing iron parts and steel plates → opening iron parts and steel plates → making and installing iron parts and anchors → pouring concrete to fix anchors → hoisting and placing iron parts and steel plates → Welding anchors and steel plates of each piece of iron → Concrete pouring; the specific steps are as follows:

[0025] (1) Blocking and opening of iron parts:

[0026] Cutting of iron parts into blocks:

[0027] Divide the super-large iron steel plate into blocks, and use a cutting machine to cut the boards. There are zigzag and other curved notches between each block. Try to avoid anchors and places where the steel bars under the iron parts are denser, and avoid other reserved holes such as pouring holes on the surface of the iron parts.

[0028] Iron parts opening:

[0029] Welding anchor holes, concrete pouring holes, vent holes, and vibr...

example

[0045] Yantai Raffles 20,000 tons fixed gantry crane concrete foundation project, the J-4 roof size is 30.6×8.6×4m, the concrete strength is C50, the total weight of the roof embedded iron parts is 112 tons, and the roof M-D iron parts size is 18800×2000×50mm , including anchors weighing 18 tons, anchors are mainly 400×400×40×40mm welded H-shaped steel (length 2.8m), auxiliary anchors are L160×16 angle steel, HRB400 steel bars, installation height 70m, installation requirements levelness ± 2mm , Axis deviation ± 5mm. The M-D iron parts are hoisted in three pieces, the lengths are 6200mm, 6000mm, and 6600mm respectively. Anchor holes, pouring holes, and vent holes are reserved on the surface of the iron parts. Each reserved hole is a half-groove, and each block is a full slope mouth. The CNC plasma cutting machine is used to process the steel plate, the 6t pulling rod hoisting iron parts, the total station positioning iron parts, and the CO2 gas shielded arc welding iron parts...

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Abstract

The invention discloses a highly precise construction method for ultra-large steel pieces, which is characterized in that the construction method comprises the steps as follows: partitioning steel piece and opening hole ---> fixing and installing anchor ---> hoisting steel piece plate in position ---> welding anchor pieces and each blocked steel piece plate ---> casting concrete; the construction method lowers construction cost, ensures the precision of installation and has good use effect.

Description

Technical field: [0001] The invention relates to a high-precision installation and construction method for super-large iron parts, which is suitable for the installation of super-large iron parts in industrial and civil buildings, such as roof steel structure embedded parts, large-scale equipment embedded parts, etc., which require relatively high installation accuracy for iron parts. high engineering. Background technique: [0002] At present, super-large iron parts in industrial and civil buildings are mostly used in important structures or important parts of structures. The installation accuracy of iron parts such as levelness and axis position is relatively high. However, due to the characteristics of large size, heavy weight, many anchors, and dense reinforcement , the processing and installation of iron parts are relatively difficult. If the overall hoisting of iron parts is considered, the construction cost will be greatly increased. Invention content: [0003] The...

Claims

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Application Information

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IPC IPC(8): E04G21/14
Inventor 孙国春文爱武苏茂福孙立举李青春李琦
Owner YANJIAN GRP CO LTD
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