Re-jacking reinforcing structure for post-cast belt cantilever and construction method of structure
A technology for strengthening structures and construction methods, which is applied to building structures, formwork/formwork/work frames, and on-site preparation of building components. It can solve the problem of untimely topping of post-casting belt areas and uneven settlement of cantilever beams and slabs , the change of force on the cantilever end of the beam and slab, etc., to achieve the effect of small construction difficulty, simple process and improved turnover rate
A technology for strengthening structures and construction methods, which is applied to building structures, formwork/formwork/work frames, and on-site preparation of building components. It can solve the problem of untimely topping of post-casting belt areas and uneven settlement of cantilever beams and slabs , the change of force on the cantilever end of the beam and slab, etc., to achieve the effect of small construction difficulty, simple process and improved turnover rate
CN109457952APending Publication Date: 2019-03-12CHINA CONSTR 4TH ENG BUREAU 6TH
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[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] see Figure 1-4 As shown, a back-to-roof reinforcement structure with a cantilever for post-casting and its construction method include a PVC pipe 1, concrete 2, wooden strips 3 and a rotary sleeve 4, the inside of the PVC pipe 1 is poured with concrete 2, and the PVC pipe 1 The upper and lower ends are fixed by wooden strips 3, and the middle part of the outer wall of the PVC pipe 1 is sleeved with a rotating sleeve 4;
[0029] The middle part of the side wall of the rotary sleeve 4 is welded with a joint 5, and th...
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Abstract
The invention discloses a re-jacking reinforcing structure for a post-cast belt cantilever and a construction method of the structure. The structure can solve the problems that since traditional re-jacking modes of post-cast belt cantilever structures most adopt steel pipe scaffolds for supporting, re-jacking cannot be carried out in a rear casting belt area in time or in place after original full-grounded supporting scaffolds are dismantled, correspondingly the stress change of a cantilever end of a beam plate is caused, and even a plate surface is cracked because of uneven settlement of thecantilever beam plate. The structure comprises a PVC pipe, concrete, wood strips and a rotating sleeve, wherein concrete is poured into the PVC pipe; the upper and lower ends of the PVC pipe are fixedthrough the wood strips; the rotating sleeve sleeves the middle of the outer wall of the PVC pipe; a joint is welded to the middle of the side wall of the rotating sleeve, the side wall of the jointis provided with a clamping groove which is used for butting fixation with steel pipes, a power supply is embedded in the outer wall of the joint, and the inner walls of the upper and lower sides of the clamping groove are provided with clamping covers respectively.
Description
technical field [0001] The invention relates to a back-roofing reinforcement structure with a post-casting cantilever, in particular to a post-casting back-topping reinforcement structure with a cantilever and a construction method thereof. Background technique [0002] At present, at the construction site, most structures are designed as simply supported beams and slabs. Due to the indwelling of the post-cast belt, the structural force is transformed into a cantilever beam and slab. The resulting structural deformation causes cracks at the root of the cantilever of the beam and slab, reducing the risk of leakage in the later stage of the structural slab. In order to ensure the stress requirements of the structure, the beam slab and the post-cast belt formwork support system are regarded as the same system. After waiting for the beam slab concrete on both sides of the post-casting belt to reach the strength of form removal, when removing the full support scaffolding in the ...
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Patent Timeline
12 Mar 2019
Publication
CN109457952A
- IPC
- E04G11/48
- CPC
- E04G11/48
- Inventors
- 童天培; 刘智泉