CN216194899U - Bearing platform prefabricated structure and bearing platform foundation - Google Patents
Bearing platform prefabricated structure and bearing platform foundation Download PDFInfo
- Publication number
- CN216194899U CN216194899U CN202122512600.4U CN202122512600U CN216194899U CN 216194899 U CN216194899 U CN 216194899U CN 202122512600 U CN202122512600 U CN 202122512600U CN 216194899 U CN216194899 U CN 216194899U
- Authority
- CN
- China
- Prior art keywords
- bearing platform
- pile
- foundation
- prefabricated
- foundation pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a bearing platform prefabricated structure and a bearing platform foundation. The technical scheme adopted by the utility model is as follows: the utility model provides a cushion cap prefabricated construction, has the cushion cap prefabricated bottom plate of one stage, is equipped with a plurality of foundation pile installation through-holes that correspond with the foundation pile on this cushion cap prefabricated bottom plate of one stage, corresponds foundation pile installation through-hole and is equipped with hoist and mount supporting mechanism, and this hoist and mount supporting mechanism is fixed in on the cushion cap prefabricated bottom plate of one stage and have and be located foundation pile installation through-hole top, can regard as the impetus when this cushion cap prefabricated construction hoists and the pile head that puts the foundation pile strong point when on the foundation pile links the roof beam. A bearing platform foundation is provided with a bearing platform and a plurality of foundation piles, wherein the bearing platform comprises a bearing platform prefabricated structure and a secondary cast-in-place bearing platform poured on the bearing platform prefabricated structure; the bearing platform prefabricated structure is placed on the foundation pile through the pile head connecting beam on the bearing platform prefabricated structure, and the upper end of the foundation pile penetrates through a foundation pile mounting through hole in the bearing platform prefabricated structure on the first-stage prefabricated base plate and supports the pile head connecting beam above the through hole.
Description
Technical Field
The utility model relates to a bearing platform prefabricated structure and a bearing platform foundation. The method is suitable for the technical field of offshore wind power.
Background
The bearing platform foundation is a special foundation type in the field of offshore wind power engineering in China, is a common structure of a coastal wharf and a pier and consists of foundation piles and a bearing platform, and the foundation piles can adopt precast piles or steel pipe piles; the upper bearing platform is of a cast-in-place reinforced concrete structure. In order to relatively save the construction process and the construction time, the bearing platform foundation usually adopts a mode of combining a single bearing platform and a plurality of foundation piles. Because the upper part adopts the cast-in-place concrete bearing platform, the foundation structure is comparatively thick and heavy, the self rigidity of the bearing platform is comparatively large, in order to strengthen the rigidity of the lower part of the foundation, the concrete with certain length is poured into the steel pipe pile below the bearing platform, a plurality of foundation piles are embedded into the concrete bearing platform with certain length through pouring, and the bearing platform and the steel pipe pile form a whole. From the point of view of structural stress and control of horizontal displacements, foundation piles are usually designed as oblique piles.
The equipment and process adopted by the construction of the bearing platform foundation are conventional, the construction experience is rich, but the upper part of the bearing platform foundation is of a cast-in-place concrete structure, bottom sealing concrete, a vertical steel box cofferdam (which can also be used as a concrete pouring template), on-site steel bar binding and concrete pumping are required to be arranged, the offshore construction process is complex, the construction is greatly influenced by sea conditions and weather, and the construction period is long. Particularly, for the Zhejiang sea area in China, the surge is large, the effective operation window is short, and a large ship is needed to finish the normal operation on the sea within a limited window period when the steel bars are hoisted, so that the construction efficiency on the sea and the project progress are extremely influenced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: to the problem that exists, provide a cushion cap prefabricated construction, cushion cap basis.
The technical scheme adopted by the utility model is as follows: the utility model provides a cushion cap prefabricated construction which characterized in that: the pile head connecting beam is provided with a bearing platform first-stage prefabricated bottom plate, a plurality of foundation pile mounting through holes corresponding to foundation piles are arranged on the bearing platform first-stage prefabricated bottom plate, hoisting support mechanisms are arranged corresponding to the foundation pile mounting through holes and fixed on the bearing platform first-stage prefabricated bottom plate, and the pile head connecting beam is located above the foundation pile mounting through holes, can serve as an acting point when the bearing platform prefabricated structure is hoisted and a foundation pile supporting point when the bearing platform prefabricated structure is placed on the foundation piles.
The hoisting support mechanism is provided with a plurality of support upright posts distributed around the foundation pile mounting through holes, the lower ends of the support upright posts are connected with upright post anchor plates embedded in the bearing platform primary prefabricated bottom plate, and the upper ends of the support upright posts are connected with the pile head connecting beam and connected with the upper ends of other support upright posts through the pile head connecting beam.
The supporting upright posts are connected through connecting rods.
The inner wall of the foundation pile mounting through hole is a pile circumference steel plate, and the inner side and the outer side of the pile circumference steel plate are respectively provided with a shear steel bar and a shear key.
The utility model provides a cushion cap basis, has cushion cap and many foundation piles, its characterized in that: the bearing platform comprises the bearing platform prefabricated structure and a secondary cast-in-place bearing platform poured on the bearing platform prefabricated structure;
the bearing platform prefabricated structure is placed on the foundation pile through the pile head connecting beam on the bearing platform prefabricated structure, and the upper end of the foundation pile penetrates through a foundation pile mounting through hole in the bearing platform prefabricated structure on the first-stage prefabricated base plate and supports the pile head connecting beam above the through hole.
And a pile peripheral bottom plate for plugging the lower orifice of the foundation pile mounting through hole is fixed on the foundation pile.
And pile-surrounding reinforcement cages sleeved on the foundation piles are arranged in the second-stage cast-in-place bearing platform, and the lower ends of the pile-surrounding reinforcement cages are positioned in the foundation pile mounting through holes and fixedly connected with the pile-surrounding bottom plates.
And the lower ends of the axial steel bars in the reinforcement cage around the pile are in threaded connection with the bottom plate around the pile.
And the hoisting support mechanism is connected with the foundation pile through a pile head connecting plate.
A construction method of the bearing platform foundation is characterized in that:
performing foundation pile construction on a construction site, wherein the positions of foundation piles correspond to foundation pile mounting through holes on a first-stage prefabricated base plate of a bearing platform in the bearing platform prefabricated structure one by one;
after the foundation pile construction is finished, connecting a hoisting support mechanism on the bearing platform prefabricated structure through hoisting equipment, hoisting the bearing platform prefabricated structure to the foundation pile, and placing the bearing platform prefabricated structure at the upper end of the foundation pile through a pile head connecting beam on the bearing platform prefabricated structure;
plugging a lower orifice of a foundation pile installation through hole by a pile periphery bottom plate fixed on a foundation pile, and arranging a pile periphery reinforcement cage sleeved on the foundation pile;
and pouring concrete on the first-stage prefabricated base plate of the bearing platform to form a second-stage cast-in-place bearing platform which is connected with the first-stage prefabricated base plate of the bearing platform into a whole through the hoisting support mechanism and the reinforcement cage around the pile.
The utility model has the beneficial effects that: the offshore high-rise pile cap is divided into a prefabricated part and a cast-in-place part, so that more than 80% of work can be finished on land, the work of binding and overlapping the offshore steel bars is avoided, the process of erecting a template and a mold of the offshore pile cap is cancelled, the partial prefabrication of the high-rise pile cap is realized, and the offshore construction operation time is shortened.
The utility model can carry out hoisting construction through the hoisting support mechanism on the bearing platform prefabricated structure, does not need to add extra hoisting tools and the like in the whole construction process, has relatively lighter overall weight of the bearing platform prefabricated structure, does not need a large-scale crane ship, completes all steel bars and the like on land (or in a dock), and does not need to arrange extra ships or search other window periods for construction on the spot.
The utility model only needs to pour the second-stage cast-in-place bearing platform during offshore construction, is convenient for construction, ensures the quality of the concrete bearing platform, connects the first-stage concrete and the second-stage concrete into a whole through the hoisting support mechanism, and places the bearing platform prefabricated structure on the foundation pile through the hoisting support mechanism, thereby avoiding the quality problems of the first-stage concrete and the foundation pile such as improper connection and the like, and leading to the problems of sinking, cracking and the like of the first-stage concrete.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a schematic sectional view taken along line B-B of fig. 1.
Fig. 3 is a schematic cross-sectional view of fig. 2 taken along line C-C.
Fig. 4 is a schematic cross-sectional view taken along line D-D of fig. 3.
1a, prefabricating a bottom plate with a bearing platform in the first period; 1b, casting a bearing platform in a second stage; 2. steel pipe piles; 3. a tower drum; 4. an anchor bolt system; 5. supporting the upright post; 6. a connecting rod; 7. an upright post anchor plate; 8. pile head coupling beam; 9. a pile periphery bottom plate; 10. pile head connecting plates; 11. a reinforcement cage around the pile; 12. steel plates around the piles; 13. a shear key; 14. shear reinforcing steel bars.
Detailed Description
The embodiment is a bearing platform foundation, which comprises a bearing platform and six steel pipe piles as foundation piles, wherein a tower is arranged above the bearing platform through an anchor bolt system, and the bearing platform is divided into a bearing platform prefabricated structure positioned below and a secondary cast-in-place bearing platform poured on the bearing platform prefabricated structure.
In this embodiment, the bearing platform prefabricated structure has a bearing platform primary prefabricated bottom plate, is provided with six foundation pile installation through holes with diameters larger than the diameter of a foundation pile on the bearing platform primary prefabricated bottom plate, and is provided with a hoisting support mechanism fixed on the bearing platform primary prefabricated bottom plate corresponding to the foundation pile installation through holes. The hoisting support mechanism is positioned inside the second-stage cast-in-place bearing platform after the second-stage cast-in-place bearing platform is poured, and the second-stage cast-in-place bearing platform and the first-stage prefabricated base plate of the bearing platform are connected into a whole.
In the embodiment, the hoisting support mechanism is provided with 6 support upright posts distributed around the foundation pile mounting through holes, the lower ends of the support upright posts are connected with upright post anchor plates embedded at the bottom of the first-stage prefabricated bottom plate of the bearing platform, and the upper ends of the 6 support upright posts of the hoisting support mechanism are jointly connected with a pile head connecting beam positioned above the foundation pile mounting through holes.
In this example, the hoisting support mechanisms are connected with the adjacent hoisting support mechanisms through a plurality of connecting rods, and two ends of each connecting rod are respectively connected with the support columns in the two adjacent hoisting support mechanisms, so that the rigidity and the strength of the support columns are increased.
In this embodiment, the wall of the foundation pile installation through hole is provided with a pile peripheral steel plate which is used as a foundation pile installation through hole die when the bearing platform first-stage prefabricated bottom plate is poured, the outer side surface of the pile peripheral steel plate is welded with a shear key, and the inner side surface of the pile peripheral steel plate is welded with a shear steel bar.
In this embodiment, the pile head coupling beam of the bearing platform prefabricated structure through 6 hoisting support mechanisms thereon is laid at the upper ends of 6 steel pipe piles, the upper ends of the steel pipe piles penetrate through foundation pile mounting through holes on the primary prefabricated base plate of the bearing platform to support the pile head coupling beam of the corresponding hoisting support mechanism, the steel pipe piles are welded with the support upright posts by adopting the pile head connecting plates, and the connection between the steel pipe piles and the bearing platform prefabricated structure is enhanced.
In the embodiment, a pile peripheral bottom plate is welded and fixed on the steel pipe pile, the pile peripheral bottom plate plugs a lower hole opening of a foundation pile mounting through hole, and a ring of nuts arranged around the steel pipe pile are manufactured on the pile peripheral bottom plate. In the embodiment, the second-stage cast-in-place bearing platform is provided with the pile circumferential reinforcement cage sleeved on the foundation pile, the lower end of the pile circumferential reinforcement cage is positioned in the foundation pile mounting through hole, and the lower end of the axial reinforcement in the pile circumferential reinforcement cage is in threaded connection with the nut on the pile circumferential bottom plate.
The construction method of the bearing platform foundation in the embodiment is as follows:
performing foundation pile construction on a construction site, wherein the positions of foundation piles correspond to foundation pile mounting through holes on a first-stage prefabricated base plate of a bearing platform in a bearing platform prefabricated structure one by one;
after the foundation pile construction is finished, the hoisting support mechanism on the bearing platform prefabricated structure is connected through hoisting equipment, so that the bearing platform prefabricated structure is hoisted to the foundation pile, and the bearing platform prefabricated structure is placed at the upper end of the foundation pile through a pile head connecting beam on the bearing platform prefabricated structure;
plugging a lower orifice of a foundation pile installation through hole by a pile periphery bottom plate fixed on the foundation pile, and arranging a pile periphery reinforcement cage sleeved on the foundation pile;
and pouring concrete on the first-stage prefabricated base plate of the bearing platform to form a second-stage cast-in-place bearing platform which is connected with the first-stage prefabricated base plate of the bearing platform into a whole through the hoisting support mechanism and the reinforcement cage around the pile.
Claims (9)
1. The utility model provides a cushion cap prefabricated construction which characterized in that: the pile head connecting beam is provided with a bearing platform first-stage prefabricated bottom plate, a plurality of foundation pile mounting through holes corresponding to foundation piles are arranged on the bearing platform first-stage prefabricated bottom plate, hoisting support mechanisms are arranged corresponding to the foundation pile mounting through holes and fixed on the bearing platform first-stage prefabricated bottom plate, and the pile head connecting beam is located above the foundation pile mounting through holes, can serve as an acting point when the bearing platform prefabricated structure is hoisted and a foundation pile supporting point when the bearing platform prefabricated structure is placed on the foundation piles.
2. The cap preform structure of claim 1, wherein: the hoisting support mechanism is provided with a plurality of support upright posts distributed around the foundation pile mounting through holes, the lower ends of the support upright posts are connected with upright post anchor plates embedded in the bearing platform primary prefabricated bottom plate, and the upper ends of the support upright posts are connected with the pile head connecting beam and connected with the upper ends of other support upright posts through the pile head connecting beam.
3. The cap preform structure of claim 2, wherein: the supporting upright posts are connected through connecting rods.
4. The cap preform structure of claim 1, wherein: the inner wall of the foundation pile mounting through hole is a pile circumference steel plate, and the inner side and the outer side of the pile circumference steel plate are respectively provided with a shear steel bar and a shear key.
5. The utility model provides a cushion cap basis, has cushion cap and many foundation piles, its characterized in that: the bearing platform comprises a bearing platform prefabricated structure as claimed in any one of claims 1 to 4 and a secondary cast-in-place bearing platform poured on the bearing platform prefabricated structure;
the bearing platform prefabricated structure is placed on the foundation pile through the pile head connecting beam on the bearing platform prefabricated structure, and the upper end of the foundation pile penetrates through a foundation pile mounting through hole in the bearing platform prefabricated structure on the first-stage prefabricated base plate and supports the pile head connecting beam above the through hole.
6. The cap foundation of claim 5, wherein: and a pile peripheral bottom plate for plugging the lower orifice of the foundation pile mounting through hole is fixed on the foundation pile.
7. The cap foundation of claim 6, wherein: and pile-surrounding reinforcement cages sleeved on the foundation piles are arranged in the second-stage cast-in-place bearing platform, and the lower ends of the pile-surrounding reinforcement cages are positioned in the foundation pile mounting through holes and fixedly connected with the pile-surrounding bottom plates.
8. The cap foundation of claim 7, wherein: and the lower ends of the axial steel bars in the reinforcement cage around the pile are in threaded connection with the bottom plate around the pile.
9. The cap foundation of claim 5, wherein: and the hoisting support mechanism is connected with the foundation pile through a pile head connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122512600.4U CN216194899U (en) | 2021-10-19 | 2021-10-19 | Bearing platform prefabricated structure and bearing platform foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122512600.4U CN216194899U (en) | 2021-10-19 | 2021-10-19 | Bearing platform prefabricated structure and bearing platform foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216194899U true CN216194899U (en) | 2022-04-05 |
Family
ID=80884144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122512600.4U Active CN216194899U (en) | 2021-10-19 | 2021-10-19 | Bearing platform prefabricated structure and bearing platform foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216194899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809062A (en) * | 2022-05-18 | 2022-07-29 | 中广核(福建)风力发电有限公司 | Integral bottom plate-integral vertical ring combined concrete bearing platform foundation and construction process thereof |
-
2021
- 2021-10-19 CN CN202122512600.4U patent/CN216194899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809062A (en) * | 2022-05-18 | 2022-07-29 | 中广核(福建)风力发电有限公司 | Integral bottom plate-integral vertical ring combined concrete bearing platform foundation and construction process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108643221B (en) | Offshore wind power assembled bearing platform foundation and construction method thereof | |
| CN107299643B (en) | Steel lattice column combined type tower crane foundation structure in foundation pit and construction method | |
| CN215715494U (en) | Partially prefabricated offshore high pile cap | |
| CN110397069B (en) | Single-cylinder multi-cabin combined foundation structure with supporting structure and construction method thereof | |
| CN110453711B (en) | Elastic transition section multi-cylinder foundation structure and construction method thereof | |
| CN112127383A (en) | Offshore wind power foundation with separated bins in barrel top dense beam barrel and single-column negative pressure barrel | |
| CN216194899U (en) | Bearing platform prefabricated structure and bearing platform foundation | |
| CN106869032B (en) | A kind of bridge bearing platform constructing tie beam method | |
| CN211815986U (en) | High-pile beamless plate wharf structure | |
| CN113047330A (en) | Assembled high-rise pile cap for offshore wind power | |
| EP3904674B1 (en) | Floating platform for high-power wind turbines | |
| CN113818477A (en) | Bearing platform prefabricated structure, bearing platform foundation and construction method thereof | |
| CN217053439U (en) | Steel pipe composite pile for abrasive environment | |
| CN103061334B (en) | I-section prestressed reinforced concrete support pile by centrifugal pouring | |
| CN110397068B (en) | Multi-cylinder steel-concrete combined foundation structure and construction method thereof | |
| CN110397067B (en) | Multi-cylinder reinforced concrete combined foundation structure with supporting structure and construction method thereof | |
| CN210737452U (en) | Waterborne assembled berthing pier | |
| CN210975864U (en) | Offshore wind power composite barrel foundation construction structure | |
| CN210766850U (en) | Ring cylinder reinforced concrete combined foundation structure | |
| CN113431081A (en) | Integral ship-leaning anti-collision structure of offshore wind power multi-pile foundation and construction method | |
| CN113374645A (en) | Offshore multi-tube jacket foundation wind turbine generator set wharf assembling method | |
| CN111424554A (en) | Construction method for suspended formwork of seascape trestle | |
| CN216839533U (en) | Prefabricated cushion cap | |
| CN110424443B (en) | Ring cylinder steel-concrete combined foundation structure and construction method thereof | |
| CN214994012U (en) | Assembled high-rise pile cap for offshore wind power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |