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Assembled steel-structure tower crane foundation and construction method

A tower crane foundation and steel structure technology, applied in the direction of foundation structure engineering, construction, etc., can solve the problems of poor overall stability and overturning resistance of the upper steel beam, troublesome splicing, and reduced rigidity, and achieve anti-overturning stability and component self-resistance Good torsion, high construction efficiency, and the effect of eliminating deviation

Pending Publication Date: 2019-03-08
SHANGHAI NO 7 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cross arm of the former cross steel beam foundation has more seams, which is more troublesome to splice, and the rigidity is also reduced.
The torsion resistance of the latter H-shaped steel itself and the overall stability and overturning resistance of the upper steel beam are relatively poor, and neither of them takes into account the verticality error caused by the construction deviation of the bored pile and the steel lattice column during the construction process. Influence of steel structure tower crane foundation installation

Method used

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  • Assembled steel-structure tower crane foundation and construction method
  • Assembled steel-structure tower crane foundation and construction method
  • Assembled steel-structure tower crane foundation and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Such as Figure 1 to Figure 12 As shown, a kind of prefabricated steel structure tower crane foundation 100 provided in this embodiment is installed on four steel lattice columns 2 (see Figure 13-Figure 17 ), each steel lattice column 2 is fixed on the corresponding bored pile (not shown in the figure). In this embodiment, four steel lattice columns 2 are arranged in a square. Such as figure 1 shown, see also Figure 2-Figure 3 , the fabricated steel structure tower crane foundation 100 includes: four column caps 10, two steel main beams 20, two steel main beams 20, two steel secondary beams 30, four steel tie beams 40 and four circular Steel backing plate 50. The four column caps 10 are installed on the four steel lattice columns 2 correspondingly. see Figure 13 , see also Figure 14-Figure 17 , each column cap 10 includes a cover plate 11 and a plurality of stiffening plates 12 vertically fixed to the bottom of the cover plate 11 . Such as figure 1 shown, s...

Embodiment 2

[0084] see Figure 1-Figure 17 , the present invention also provides a construction method for the fabricated steel structure tower crane foundation 100 as described above, which is performed according to the following steps:

[0085] Step 100, construction of bored piles;

[0086] After the construction preparation is completed, the casing is buried. Then carry out pile driver positioning, adjustment and centering. Then drill into the hole, and clean the hole once after the hole is completed. After the hole clearing is completed, the sediment is initially measured, the steel cage is hoisted, and the downcomer is carried out. Secondary emptying is then carried out, and concrete pouring is carried out after completion.

[0087] In step 200, the steel lattice column 2 is constructed.

[0088] During the construction of the steel lattice column 2, the prepared steel lattice column 2 is welded on a short steel cage in advance, which should meet the lifting requirements of the...

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Abstract

The invention discloses an assembled steel-structure tower crane foundation and a construction method, and belongs to the technical field of building engineering. The foundation is installed at four steel latticework columns, and the steel latticework columns are fixed to a cast-in-place bored pile. The foundation comprises four column caps, two steel secondary beams, four steel collar beams and four circular steel backing plates. Two steel main beams are fixed to the steel latticework columns through the column caps. The two steel secondary beams are fixed to the two main beams. Two steel collar beams are fixedly connected between the two steel secondary beams in a cross manner, and the other two steel collar beams are arranged at the outer side and fixedly connected with the two steel secondary beams. The circular steel backing plates are used for connecting base sections of a tower crane. The steel main beams, the steel secondary beams, the steel collar beams and a cover plate are prefabricated in advance in a machining plant, a plurality of stiffening plates are configured to be hoisted and lofted in the field, and the accurate dimensions of the stiffening plates are determined, so that the deviations of the steel latticework columns are eliminated and the geometric dimensions of the two steel main beams are ensured, and higher stability against overturning and own torsionresistance of members are achieved; and moreover, the foundation is convenient to construct and high in construction efficiency.

Description

technical field [0001] The invention relates to an assembled steel structure tower crane foundation and a construction method, belonging to the technical field of construction engineering. Background technique [0002] In building construction, tower cranes are widely used to solve the problem of vertical transportation during construction. Usually, in order to ensure the safety of the tower crane during use, the tower crane is generally fixed on the reinforced concrete cap. However, this kind of cap has a large size, relatively large amount of concrete and steel, high cost, long manufacturing cycle, and needs to be dismantled separately, consuming a lot of manpower and material resources, and the construction waste produced by it will also pollute the environment. [0003] Then there was a combined steel structure tower crane foundation. Existing steel structure tower crane foundations are usually composed of cross steel beams or single-layer, combined multiple H-shaped s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E02D27/44
CPCE02D27/42E02D27/44
Inventor 谭英辉闫雁军董佳慧胡奕宋自杰陶金
Owner SHANGHAI NO 7 CONSTR
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