CN211816345U - Steel boxed cofferdam - Google Patents
Steel boxed cofferdam Download PDFInfo
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- CN211816345U CN211816345U CN202020309552.1U CN202020309552U CN211816345U CN 211816345 U CN211816345 U CN 211816345U CN 202020309552 U CN202020309552 U CN 202020309552U CN 211816345 U CN211816345 U CN 211816345U
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Abstract
The utility model discloses a steel casing box cofferdam, protect a section of thick bamboo including concrete bottom plate, steel side form and steel, the concrete bottom plate includes many distribution roof beams the distribution roof beam upper berth is equipped with concrete slab, the steel side form includes side form panel and side form supporting beam, a plurality of cover cylinder holes have been seted up on the concrete bottom plate, protect the downthehole installation of a section of thick bamboo the steel protects a section of thick bamboo, just the steel protects a section of thick bamboo and is equipped with a plurality of shear force keys along the circumferencial direction, the shear force key position in protect a section of thick bamboo downthehole, protect a section of thick bamboo hole with it has the back cover concrete to fill between the steel protection section of thick. The utility model discloses a protect a section of thick bamboo periphery at the steel and set up the shear force key, when protecting a section of thick bamboo hole and a steel and protecting a section of thick bamboo and connect, the shear force key that is equipped with can improve the cohesive force between the two to alleviate the thickness of back cover concrete, avoid the waste of concrete, practice thrift construction cost.
Description
Technical Field
The utility model relates to an aquatic cushion cap construction technical field, especially a steel bushing box cofferdam.
Background
In the construction of deep water bearing platforms in China, open caisson, steel cofferdam or steel box sheathing methods are mostly adopted. The open caisson and the steel cofferdam construction process is complicated, the construction period is long, the material consumption is large, the steel sleeve box process is simple to operate, the construction period is saved, the material consumption is reasonable and can be recycled, the technology is feasible, and the application of the steel sleeve box is gradually popularized. The construction of the deep water bearing platform by the traditional steel sleeve box is that after the deep water pile foundation is completed, the steel sleeve box which is spliced into a whole is hung on the pile top of the positioning pile by using hoisting equipment, then underwater concrete is poured to seal the bottom, bearing platform concrete is poured after water pumping, and the hoisting box provides a dry working environment for the construction of the bearing platform. At present, the steel sleeve box is widely applied at home and abroad, but the following defects still exist in the traditional steel sleeve box construction: traditional steel pouring jacket does not take other measures, relies on the cohesive force of back cover concrete alone to provide the support, and back cover concrete thickness is big, and is extravagant more.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the steel boxed cofferdam is provided aiming at the problems of large thickness and more waste of the bottom sealing concrete in the prior art.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a steel boxed cofferdam, includes that concrete bottom plate, steel side form and steel protect a section of thick bamboo, the concrete bottom plate includes many distribution beams the distribution beam upper berth is equipped with concrete slab, the steel side form includes side form panel and side form supporting beam, a plurality of protect barrel holes have been seted up on the concrete bottom plate, protect the downthehole installation of barrel a section of thick bamboo the steel protects a section of thick bamboo, just the steel protects a section of thick bamboo and is equipped with a plurality of shear force keys along the circumferencial direction, the shear force key position in protect the barrel hole, protect the barrel hole with the steel protects and packs between the barrel and have the back cover concrete.
The utility model discloses a protect a section of thick bamboo periphery at the steel and set up the shear force key, when protecting a section of thick bamboo hole and a steel and protecting a section of thick bamboo and connect, the shear force key that is equipped with can improve the cohesive force between the two to alleviate the thickness of back cover concrete, avoid the waste of concrete, practice thrift construction cost.
As the preferred scheme of the utility model, the shear force key along the circumferencial direction of a steel casing evenly sets up.
As the preferred scheme of the utility model, the shear force key is steel nail or I-steel.
As the preferred scheme of the utility model, the shear force key with steel protects a welded connection.
As the preferred scheme of the utility model, the reinforcing bar net has still been arranged to the concrete bottom plate, and the reinforcing bar net that is equipped with can improve the tensile and bending resistance of concrete bottom plate.
As the preferred proposal of the utility model, the reinforcing mesh is of a groined structure.
As the utility model discloses an optimal scheme, a side form supporting beam includes the outside shaped steel of side form and the inside steel pipe that supports of side form, the outside shaped steel of side form encloses into the rectangle structure.
As the utility model discloses a preferred scheme, the inside support steel pipe of side form includes four groups support steel pipe units, every group support the steel pipe unit and arrange respectively the right angle limit of rectangle structure to connect two adjacent rectangle limits. The inner supporting tube is arranged in an inclined strut mode, and the supporting effect is superior to that of a traditional cross strut arrangement mode.
As the utility model discloses a preferred scheme, every group support the steel pipe unit and include two parallel arrangement's steel pipe bracing.
As the utility model discloses a preferred scheme, concrete slab is precast concrete board to can practice thrift construction cycle.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a protect a section of thick bamboo periphery at the steel and set up the shear force key, when protecting a section of thick bamboo hole and a steel and protecting a section of thick bamboo and connect, the shear force key that is equipped with can improve the cohesive force between the two to alleviate the thickness of back cover concrete, avoid the waste of concrete, practice thrift construction cost.
The utility model discloses reinforcing bar net has still been arranged at the concrete bottom plate, and the reinforcing bar net that is equipped with can improve the tensile and the bending resistance of concrete bottom plate. The utility model discloses arrange the bracing form into with inside stay tube, the supporting effect is superior to traditional stull arrangement mode.
Drawings
Fig. 1 is a vertical view of a steel boxed cofferdam of the utility model.
Fig. 2 is a plan view of a steel boxed cofferdam of the utility model.
Fig. 3 is a schematic structural view of the concrete bottom plate of the present invention.
Icon: 1-Bailey beam group, 2-steel pouring jacket, 21-steel side die, 211-side die panel, 212-side die external profile steel, 213-side die internal support steel pipe, 2131-support steel pipe unit, 22-concrete bottom plate, 221-distribution beam, 222-concrete plate, 223-cylinder protection hole, 224-reinforcing mesh, 3-steel cylinder protection and 31-shear key.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1-2, the steel boxed cofferdam comprises a steel boxed 2 and a steel casing 3, the steel boxed 2 comprises a steel side mold 21 and a concrete bottom plate 22, and a bailey beam group 1 is connected above the steel casing 3.
The steel side die 21 comprises a side die panel 211 and a side die supporting beam, the side die panel 211 is made of a steel plate with the thickness of 6mm, the side die supporting beam comprises side die external section steel 212 and side die internal supporting steel pipes 213, and the side die external section steel 212 is made of I-shaped steel and is surrounded into a rectangular structure to serve as a main supporting beam system. The support steel pipe 213 inside the side mold comprises four groups of support steel pipe units 2131, each group of support steel pipe units 2131 comprises two steel pipe inclined struts arranged in parallel, and each group of support steel pipe units 2131 are respectively arranged on one right-angle side of the rectangular structure and connected with two adjacent rectangular sides. The support steel pipe 213 inside the side die is arranged in an inclined support mode, and the support effect is superior to that of a traditional cross support arrangement mode.
The concrete bottom plate 22 comprises a plurality of I-shaped steel distribution beams 221, precast concrete plates 222 (labeled as C30) are laid on the distribution beams 221, a plurality of cylinder protecting holes 223 are formed in the concrete bottom plate 22, steel protective cylinders 3 are installed in the cylinder protecting holes 223, the diameters of the cylinder protecting holes 223 are slightly larger than those of the steel protective cylinders 3, a plurality of shear keys 31 are uniformly welded on the steel protective cylinders 3 along the circumferential direction, the shear keys 31 are steel nails or I-shaped steel, the shear keys 31 are located in the cylinder protecting holes 223, and bottom sealing concrete is filled between the cylinder protecting holes 223 and the steel protective cylinders 3.
As shown in fig. 3, the concrete bottom plate 22 is further provided with a steel mesh 224, the steel mesh 224 is of a well-shaped structure, and the steel mesh is provided to improve the tensile and bending resistance of the concrete bottom plate.
The utility model discloses a 3 peripheries at the steel casing set up shear force key 31, when protecting a section of thick bamboo hole 223 and 3 connections of steel casing, the shear force key 31 that is equipped with can improve the adhesion force between the two to alleviate the thickness of back cover concrete, avoid the waste of concrete, practice thrift construction cost.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a steel boxed cofferdam, its characterized in that, protects a section of thick bamboo including concrete bottom plate, steel side form and steel, the concrete bottom plate includes many distribution beams the distribution beam upper berth is equipped with concrete slab, the steel side form includes side form panel and side form supporting beam, a plurality of protect a section of thick bamboo hole has been seted up on the concrete bottom plate, protect an downthehole installation of section of thick bamboo the steel protects a section of thick bamboo, just the steel protects a section of thick bamboo and is equipped with a plurality of shear force keys along the circumferencial direction, the shear force key position in protect an downthehole, protect a section of thick bamboo hole with it has the back cover concrete to fill between the steel protect.
2. The steel boxed cofferdam of claim 1, wherein the shear keys are uniformly arranged along the circumferential direction of the steel casing.
3. The steel boxed cofferdam of claim 1, wherein the shear keys are steel nails or i-steel.
4. The steel boxed cofferdam of claim 1, wherein the shear key is welded to the steel casing.
5. The steel boxed cofferdam of claim 1, wherein the concrete bottom plate is further arranged with a steel mesh.
6. The steel boxed cofferdam of claim 5, wherein the reinforcing mesh is of a groined structure.
7. The steel boxed cofferdam of claim 1, wherein the side form support beams comprise side form exterior steel bars and side form interior support steel pipes, and the side form exterior steel bars enclose a rectangular structure.
8. The steel boxed cofferdam of claim 7, wherein the side forms internal support steel pipes comprise four sets of support steel pipe units, each set of support steel pipe units are respectively arranged at the right-angle sides of the rectangular structure and connect two adjacent rectangular sides.
9. The steel boxed cofferdam of claim 8, wherein each set of said supporting steel pipe units comprises two steel pipe braces arranged in parallel.
10. Steel cofferdam according to any of the claims 1-9, characterized in that said concrete slab is a precast concrete slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020309552.1U CN211816345U (en) | 2020-03-12 | 2020-03-12 | Steel boxed cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020309552.1U CN211816345U (en) | 2020-03-12 | 2020-03-12 | Steel boxed cofferdam |
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| Publication Number | Publication Date |
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| CN211816345U true CN211816345U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020309552.1U Active CN211816345U (en) | 2020-03-12 | 2020-03-12 | Steel boxed cofferdam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529763A (en) * | 2021-07-01 | 2021-10-22 | 中铁十九局集团华东工程有限公司 | Method for constructing sea area shoal cushion cap by utilizing reinforced concrete combined steel cofferdam |
| CN114703762A (en) * | 2022-05-16 | 2022-07-05 | 四川公路桥梁建设集团有限公司 | Foundation construction method of steel-concrete composite beam |
-
2020
- 2020-03-12 CN CN202020309552.1U patent/CN211816345U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529763A (en) * | 2021-07-01 | 2021-10-22 | 中铁十九局集团华东工程有限公司 | Method for constructing sea area shoal cushion cap by utilizing reinforced concrete combined steel cofferdam |
| CN114703762A (en) * | 2022-05-16 | 2022-07-05 | 四川公路桥梁建设集团有限公司 | Foundation construction method of steel-concrete composite beam |
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