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Device and method for elevation synchronous compensation for super-high structure construction

A synchronous compensation and ultra-high technology, applied in building construction, building material processing, construction, etc., can solve problems such as high cost and large material consumption, and achieve the effect of low cost, strong operability, and reduced deformation amplitude.

Active Publication Date: 2010-04-07
SHANGHAI CONSTRUCTION GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The principle of the prestressing method is simple, but the material consumption of this technology is large and the cost is high

Method used

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  • Device and method for elevation synchronous compensation for super-high structure construction
  • Device and method for elevation synchronous compensation for super-high structure construction
  • Device and method for elevation synchronous compensation for super-high structure construction

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Embodiment Construction

[0039] Below in conjunction with accompanying drawing, the present invention is described clearly and completely:

[0040] see Figure 4 and Figure 5 , this elevation synchronous compensating device for super-high structure construction includes several groups of jacking devices 2 for each column on the upper layer of the lifting conversion truss 1, and making it flush with the reference level line, the jacking device 2 The device 2 is arranged above the conversion truss and corresponds to each column.

[0041] The lower part of each column is fixed with a temporary changing corbel 4, and the jacking device 2 is arranged below the temporary changing corbel, by lifting and lowering the temporary changing corbel 4, each column is adjusted to the reference position. The level line corresponds to flush. In this embodiment, each set of jacking devices 2 includes two jacks 21, and a temporary support bracket 4 is respectively fixed on both sides of the lower part of each column,...

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Abstract

The invention discloses a method and a device for elevation synchronous compensation for a super-high structure construction. The device comprises a plurality of groups of columns used on an upper layer of a lifting conversion truss, and a jacking device which makes the columns correspondingly level with a reference level line, wherein the jacking device is arranged above the conversion truss and corresponds to the columns. The method comprises the following steps that: the columns, beams and plates of each layer are constructed layer by layer from bottom to top, and after the construction of each layer is finished, the device for the synchronous compensation is adjusted so that each column is correspondingly leveled with the reference level line and the structure each layer is achieved to be level; when the structure is constructed to an upper track conversion truss or the top of the structure is sealed, an upper layer of concrete of the conversion truss is cast to underpin the device for the synchronous compensation so as to achieve the permanent connection of the structure; and finally, the device for the synchronous compensation is dismounted. The method and the device can effectively control the deformation of a horizontal structure in a construction process so as to effectively reduce the deformation extent of the structure, and avoid oversized structural deflections which cause larger additional stresses at local panel points and endanger the quality of floor-slab layers.

Description

technical field [0001] The invention is a construction deformation control technology applied in the field of building construction, and is especially suitable for an elevation synchronous compensation device and method for superhigh structure construction. Background technique [0002] In modern high-rise buildings, transfer floors are often provided to improve structural stress and improve structural seismic capacity. The transfer floor is mainly in the form of truss beams to bear large lateral loads. Conversion trusses are used in super high-rise buildings such as Jinmao Tower (420m), Shimao Plaza (333m), and Shanghai World Financial Center (492m). A large number of conversion trusses are used in the new CCTV site building that has already started construction, and a total of 60 conversion trusses are installed on the tower and cantilever parts. [0003] The conversion truss has a large span and a heavy load, and the deflection after being loaded is relatively large. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/00
Inventor 胡玉银李琰
Owner SHANGHAI CONSTRUCTION GROUP
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