Jacking system for buildings

Abstract

The invention discloses a jacking system for buildings, which comprises at least one main jack, at least two first cushion blocks and a plurality of second cushion blocks. The main jack and first cushion blocks are all arranged on a base at the bottom of a building, one first cushion block is respectively arranged on two sides of the main jack, the lengths of the first cushion blocks are adjustable, the plurality of second cushion blocks are fixed between the main jack and the building and between the first cushion blocks and the building. The jacking system uses the main jack and the first cushion blocks for bearing the weight of the building in exchanging mode. The second cushion blocks are positioned between the building and the main jack or the first cushion blocks, and therefore safety of the jacking system for the buildings is guaranteed. The jacking system for the buildings is high in safety, short in construction period and low in cost.

Description

technical field [0001] The invention relates to the technical field of jacking, in particular to a building jacking system. Background technique [0002] The existing overall lifting device for buildings includes pallet beams, manual jacks or electric jacks, pads, and backing plates; The stroke and the number of pads. Wherein, the pads are generally made of steel, reinforced concrete or fiber reinforced concrete composite materials, and embedded parts are provided in the pads to facilitate the connection of the pads, and the connection mode of the pads is bolt connection or welding. The jacking device needs to plug a certain number of backing plates into the gap between the pad and the pallet beam when the jack reaches the maximum stroke each time. When the backing plate reaches the model height of the pad, take out the backing plate and replace it with a pad; when the pad After the number of blocks exceeds two, it is necessary to quickly weld or bolt the adjacent pads to ...

AI Technical Summary

Problems solved by technology

[0003] ① As the height of the building is lifted higher, the number of pads and pads increases. However, it is difficult for multiple pads or pads to be on a vertical line, and there is a serious overall instability Hidden dangers endanger the safety of the entire project

[0004] ②When connecting the pads, it is necessary to carry out welding and bolting at the jacking site. The operation time on site is long, which is not conducive to the use of hydraulic jacks. If there is oil leakage from the jack, the entire jacking structure is very dangerous

[0005] ③ When the clearance under the pallet beam reaches 1.3-1.5, it is necessary to build scaffolding and other operating platforms, which not only increases the cost, but also is not conducive to construction operations

At the same time, it also makes the site environment more complex and prone to unforeseen engineering safety problems

[0006] ④When the common manual or electric jack is lifted and loaded for a long time and there is a lot of dust on the site, the jack will easily leak oil continuously. pose a serious security problem

[0007] ⑤When the modulus of the cushion block is large, more cushion blocks are needed, and the cushion block is put in one piece every time the jacking gap is 2-3mm, and placed repeatedly, the total verticality of the jacking cushion block control increases the difficulty

[0008] ⑥When the jack is raised each time, pads and backing plates need to be quickly placed on site, and the labor intensity of the operators is high

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