CN216157148U - Reverse-jacking supporting structure of concrete floor - Google Patents
Reverse-jacking supporting structure of concrete floor Download PDFInfo
- Publication number
- CN216157148U CN216157148U CN202122038747.4U CN202122038747U CN216157148U CN 216157148 U CN216157148 U CN 216157148U CN 202122038747 U CN202122038747 U CN 202122038747U CN 216157148 U CN216157148 U CN 216157148U
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- supporting
- reverse
- support
- concrete floor
- jacking
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- 239000004567 concrete Substances 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000010276 construction Methods 0.000 claims abstract description 11
- 239000011378 shotcrete Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model discloses a concrete floor slab reverse-jacking supporting structure, wherein a concrete floor slab is divided into a plurality of reverse-jacking areas according to construction load, one supporting unit is recycled in the plurality of reverse-jacking areas, the supporting unit comprises a plurality of supporting parts, each supporting part comprises at least one steel support, each steel support comprises a supporting upright post and a hydraulic jack, the supporting upright post is arranged on a fixed bottom plate, the top of the supporting upright post is fixedly connected with a horizontally arranged supporting bottom plate, and the hydraulic jack is erected on the supporting bottom plate; and the lower part of the supporting upright post is provided with an inclined strut which is fixedly connected between the fixed bottom plate and the supporting upright post. The supporting force of each reverse jacking position in each reverse jacking area is adjustable, local supporting and strengthening are facilitated, and different bearing requirements of local loading, large dynamic load, stacking load and the like are met. A plurality of anti-regional circulation in top of supporting element use, under the prerequisite that satisfies floor structure safety, greatly reduced construction cost.
Description
Technical Field
The utility model relates to a supporting structure, in particular to a concrete floor slab reverse-jacking supporting structure.
Background
In a certain engineering project, the structure form is that a goblet-shaped support overlong multi-layer horseshoe-shaped curved surface space steel structure is adopted, the building height is 24m, the underground layer is five layers above the ground, the lower part is a concrete steel pipe column, the upper part is a steel structure, and the total steel consumption is 7500 tons. The main structure comprises 7 large-dip-angle large steel column core cylinders, a large-span steel structure hyperboloid oblique-crossing grid truss and platform beams among the trusses. The installation of the overground part of the large-inclination angle steel pipe column and the ground assembly of the large-span steel structure hyperboloid diagonal grid truss are all required to be carried out on the basement roof, and because the basement roof does not have a soil covering layer during the installation of the steel structure, the bearing capacity of the floor is limited, so that the basement roof needs to be supported in an inverted mode, and the bearing capacity of the floor is increased. According to the existing construction experience, the method of the reverse top support comprises the following steps: when the basement concrete top plate is constructed, the vertical rods in the formwork supporting system are encrypted, the formwork supporting system under the basement top plate is not detached when the steel structure is constructed, the section steel temporary supports are arranged at the station positions of the large-scale hoisting machinery, the required materials are more, the occupied material time is long, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a concrete floor slab reverse-jacking supporting structure for solving the technical problems in the prior art, and the construction cost can be greatly reduced by adopting the structure.
The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: the utility model provides a concrete floor supports structure that pushes up conversely, concrete floor divides a plurality of anti-regions of pushing up into according to the construction load, and is a plurality of anti-regional supporting element of cyclic use that pushes up, the supporting element includes a plurality of bearing parts, every the bearing part includes at least one steel shotcrete, the steel shotcrete is including setting up support post and the hydraulic jack on PMKD the top rigid coupling of support post has the supporting baseplate that the level set up, hydraulic jack erects on the supporting baseplate.
And an inclined strut is arranged around the lower part of the supporting upright post and fixedly connected between the fixed bottom plate and the supporting upright post.
The supporting upright posts are formed by welding H-shaped steel sections in sections.
The utility model has the advantages and positive effects that: by dividing the floor into a plurality of reverse jacking areas and using one supporting unit in turn, each supporting unit adopts a plurality of scattered and adjustable supporting parts, so that the supporting force at each reverse jacking position in each reverse jacking area is adjustable, the local supporting is convenient to strengthen, and different bearing requirements such as local loading, large dynamic load, stacking load and the like are met. A plurality of anti-regional circulation in top of supporting element use, under the prerequisite that satisfies floor structure safety, greatly reduced construction cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a steel support structure of the present invention.
In the figure: 1. supporting the upright post; 2. fixing the bottom plate; 3. a hydraulic jack; 4. bracing; 5. supporting the bottom plate.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 and 2, a concrete floor slab supports structure against top, the concrete floor slab is divided into a plurality of areas against top according to construction load, a support unit is recycled in the areas against top, the support unit includes a plurality of support components, each support component includes at least one steel support, the steel support includes a support upright 1 and a hydraulic jack 3, the support upright 1 is fixed on a fixed base plate 2, a horizontally arranged support base plate 5 is fixed on the top of the support upright 1, and the hydraulic jack 3 is erected on the support base plate 5.
In this embodiment, an inclined strut 4 is arranged around the lower part of the support column 1, and the inclined strut 4 is fixedly connected between the fixing bottom plate 2 and the support column 1 for improving the stability of the support column. The supporting upright post 1 is formed by welding H-shaped steel sections in sections, and is convenient to manufacture and reliable in structure.
When the concrete floor slab reverse-jacking support structure is applied to construction of a goblet-shaped support super-long multi-layer horseshoe-shaped curved surface space steel structure, BIM software is adopted to simulate the installation of steel pipe columns on the ground and the assembling working condition of an oblique-crossing grid truss; and dividing the concrete floor into a traffic lane, a crane station area and a rod temporary stacking area according to the simulation result, and determining the reverse jacking area of the floor in each functional area according to the construction load requirement in each functional area. The size of the support elements, i.e. the number of support elements, is then determined according to the load bearing requirements of the inverted top area. The net height of the steel-structured basement is 6.1m, the steel support is 400 x 400H-shaped steel and is divided into three sections, each section is 2m, the sections are connected through bolts, the top of the steel support is welded with a steel plate, a hydraulic jack is erected on the steel plate, and the floor slab is reversely jacked. The steel support can be arranged in a flexible way and used circularly, and only the chain block is needed to complete the disassembly and assembly, so that the construction cost is greatly reduced. Practice proves that: the reversed top supporting structure is adopted to reversely support the top plate of the basement, and the requirements of integral assembly operation and large-scale machine tool operation in the upper region can be met.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (3)
1. The utility model provides a concrete floor supports structure that pushes up conversely, its characterized in that, concrete floor divides into a plurality of according to the construction load and pushes up the region, and is a plurality of anti-support unit of regional cyclic use that pushes up, support unit includes a plurality of supporting parts, every supporting part includes at least one steel shotcrete, the steel shotcrete is including setting up support post and the hydraulic jack on PMKD the top rigid coupling of support post has the supporting baseplate that the level set up, hydraulic jack erects on the supporting baseplate.
2. The concrete floor inverted top support structure of claim 1, wherein a diagonal brace is provided around a lower portion of the support column, the diagonal brace being fixedly connected between the fixed bottom plate and the support column.
3. A concrete floor inverted top support structure according to claim 1, wherein said support columns are formed by welding H-section steel sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038747.4U CN216157148U (en) | 2021-08-26 | 2021-08-26 | Reverse-jacking supporting structure of concrete floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038747.4U CN216157148U (en) | 2021-08-26 | 2021-08-26 | Reverse-jacking supporting structure of concrete floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216157148U true CN216157148U (en) | 2022-04-01 |
Family
ID=80840090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122038747.4U Active CN216157148U (en) | 2021-08-26 | 2021-08-26 | Reverse-jacking supporting structure of concrete floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216157148U (en) |
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2021
- 2021-08-26 CN CN202122038747.4U patent/CN216157148U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 710075 room 11001, 10th floor, building 3, Fengxi new town headquarters economic Park project, Xixian New District, Xi'an, Shaanxi Province Patentee after: China Construction Sixth Engineering Bureau Northwest Construction Co.,Ltd. Patentee after: CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION Corp.,Ltd. Address before: 300451 no.4919, Tanggu new North Road, Binhai New Area, Tianjin Patentee before: CHINA CONSTRUCTION SIXTH ENGINEERING BUREAU INSTALLATION ENGINEERING Co.,Ltd. Patentee before: CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION Corp.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710075 room 11001, 10th floor, building 3, Fengxi new town headquarters economic Park project, Xixian New District, Xi'an, Shaanxi Province Patentee after: The First Construction Co.,Ltd. of China Construction Sixth Engineering Bureau Patentee after: CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION Corp.,Ltd. Address before: 710075 room 11001, 10th floor, building 3, Fengxi new town headquarters economic Park project, Xixian New District, Xi'an, Shaanxi Province Patentee before: China Construction Sixth Engineering Bureau Northwest Construction Co.,Ltd. Patentee before: CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION Corp.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |