CN113699961A - Pile-beam connecting structure and method for offshore independent fixed concrete mixing station - Google Patents
Pile-beam connecting structure and method for offshore independent fixed concrete mixing station Download PDFInfo
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- CN113699961A CN113699961A CN202110967028.2A CN202110967028A CN113699961A CN 113699961 A CN113699961 A CN 113699961A CN 202110967028 A CN202110967028 A CN 202110967028A CN 113699961 A CN113699961 A CN 113699961A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- 238000003466 welding Methods 0.000 claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 239000010953 base metal Substances 0.000 description 4
- 238000003908 quality control method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/223—Details of top sections of foundation piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
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- Mining & Mineral Resources (AREA)
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Abstract
The invention relates to a pile-beam connecting structure and a pile-beam connecting method suitable for an offshore independent fixed concrete mixing station. The assembled pile caps are processed and formed in a factory, the assembled pile caps are transported to the site for matching after being processed, the circular steel pipes in the assembled pile caps and the steel pipe piles are welded into a whole after the site rechecks the design coordinates and the elevation without errors, and the bearing beams are installed after the welding is finished; and after the bearing beam is completely installed in place, welding the bearing beam limiting device. The invention successfully solves the problem that the conventional process steel pipe pile is difficult to lap joint a plurality of bearing beams in different directions, improves the rigidity and stability of the bearing foundation of the offshore independent fixed concrete mixing station, and ensures the construction safety of the construction platform under extreme working conditions.
Description
Technical Field
The invention relates to the technical field of ocean engineering construction, is suitable for an offshore independent fixed concrete mixing station, and particularly relates to a pile-beam connecting structure and method for the offshore independent fixed concrete mixing station.
Background
At present, most of ocean engineering construction cannot be directly realized on water, and the ocean engineering construction must be completed by means of an offshore bearing foundation. The pile type bearing foundation is the most common structural form in the construction of shallow sea engineering at present, and the bearing foundation is formed by a method of inserting and driving steel pipe piles. The offshore independent fixed concrete mixing station mostly adopts a pile type bearing foundation, is mainly used for ocean engineering concrete construction, and can independently and continuously supply concrete for ocean engineering. Because offshore independent fixed mixing station superstructure load is great, receives wind, unrestrained, the influence of velocity of flow simultaneously big, and is higher to bearing capacity, rigidity and the requirement of stability of bearing basis. In order to ensure that the bearing capacity, rigidity and stability of the offshore mixing station meet the daily operation requirements of the mixing station, the multidirectional bearing beams are arranged on the pile type foundation to improve the bearing capacity, rigidity and stability of the foundation structure of the offshore mixing station, and the structural safety under the action of the worst load is ensured. However, the construction method for welding the corbels on the steel pipe piles to set up the bearing beams by the conventional process is not suitable for the condition that a single steel pipe pile is lapped with a plurality of bearing beams in different directions, so the pile-beam connecting structure and the method which are suitable for the offshore independent fixed concrete mixing station have the characteristics of simplicity and convenience in construction, easiness in quality control, good stability, high strength and the like.
Disclosure of Invention
The invention provides a pile-beam connecting structure and a pile-beam connecting method for an offshore independent fixed concrete mixing station, which have the characteristics of simplicity and convenience in construction, easiness in quality control, good stability, high strength and the like, can solve the problem that a plurality of bearing beams in different directions are difficult to lap joint by a steel pipe pile in the conventional process, and have the characteristics of simplicity and convenience in construction, easiness in quality control, good stability, high strength and the like.
The invention discloses a method for rapidly lapping a plurality of bearing beams in different directions by a steel pipe pile through designing an assembled pile cap of the steel pipe pile, which mainly aims at the following steps:
(1) the problem that a plurality of bearing beams in different directions are difficult to lap joint in a conventional process steel pipe pile is solved, the purpose of improving the rigidity and stability of a bearing foundation is achieved, and the construction safety of an offshore independent fixed concrete mixing station under extreme working conditions is guaranteed.
(2) The assembled pile caps are uniformly processed into finished products by a factory and are transported to the site for matching and installation, the construction method is simple, convenient and fast, the construction quality is easy to control, and the assembled pile caps can better adapt to the severe offshore construction environment so as to achieve the purposes of controlling the construction quality and safety and quicken the construction progress.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a be applicable to marine independent fixed concrete mixing station pile beam connection structure, includes steel-pipe pile, spandrel girder, prefabricated pile cap, spandrel girder stop device, steel-pipe pile foundation top sets up the prefabricated pile cap to and connect the spandrel girder through the prefabricated pile cap, and spacing through the spandrel girder stop device.
Further, the assembled pile cap is formed by welding a pile top stiffening plate, an internal groined rib plate, a hollow round panel and a round steel pipe, the specification of the round steel pipe is consistent with that of the steel pipe pile, and the rest materials are steel plates with the thickness delta of 14 mm.
Furthermore, the spandrel girder limiting device is composed of a profile cutting plate, a stiffening plate and a connecting plate, and all the materials are steel plates with the thickness delta of 10 mm.
A pile beam connecting method for an offshore independent fixed concrete mixing station adopts the connecting structure, the assembled pile caps are integrally processed and formed in a factory, the assembled pile caps are transported to the site for matching after being processed, the circular steel pipes in the assembled pile caps and the steel pipe piles are welded into a whole, and bearing beams are installed after the welding is finished; and after the bearing beam is completely installed in place, welding the bearing beam limiting device.
Further, the method comprises the following concrete construction steps:
the method comprises the following steps: the method comprises the following steps that (1) an assembled pile cap is processed in a factory, a round steel pipe is selected according to the type of a steel pipe pile on site, and the length of the round steel pipe is at least 2 times of that of a pile top stiffening plate; the top of the assembled pile cap is provided with a plurality of pile top stiffening plates, the pile top stiffening plates are fully welded on the round steel pipe on two sides, then internal groined rib plates and hollow circular plates are sequentially welded, and the contact parts of the internal groined rib plates and the hollow circular plates with the round steel pipe and the pile top stiffening plates are fully welded on two sides;
step two: hoisting the assembled pile cap to the position right above the specified steel pipe pile by using field hoisting equipment, measuring and positioning the assembled pile cap to a designed coordinate and elevation, and fixing the round steel pipe and the steel pipe pile by spot welding;
step three: after rechecking the design coordinates and the elevation of the assembled pile cap, butt-welding the round steel pipe and the steel pipe pile, and after rechecking the design coordinates and the elevation of the assembled pile cap again, removing the hoisting;
step four: welding steel plates made of the same materials on the surfaces of the butt joints of the circular steel pipes and the steel pipe piles, and finishing the installation of the assembled pile caps;
step five: carrying out on-site hoisting and installation on the bearing beam according to a design drawing;
step six: and after the bearing beam is installed, welding the profile cutting plate, the stiffening plate and the connecting plate of the bearing beam limiting device, and fully welding all contact surfaces of the profile cutting plate, the stiffening plate and the connecting plate with the hollow circular plate of the assembled pile cap and the bearing beam.
The invention has the beneficial effects that:
the invention has been successfully applied to the construction of the offshore independent fixed concrete mixing station in the cross-sea bridge project, and has the following beneficial effects:
(1) the invention successfully solves the problem that the conventional process steel pipe pile is difficult to lap joint a plurality of bearing beams in different directions, improves the rigidity and stability of the bearing foundation of the offshore independent fixed concrete mixing station, and ensures the construction safety of the construction platform under extreme working conditions.
(2) The construction method is simple, convenient and fast, has high speed, easy control of construction quality and strong operability, can better adapt to severe offshore construction environment, accelerates construction progress while controlling construction quality and safety, saves construction period and has certain engineering economic benefit.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a plan view of an assembled pile cap of the steel pipe pile;
FIG. 3 is an elevation view of an assembled pile cap of the steel pipe pile;
FIGS. 4 to 6 are elevation views of three limiting devices mounted on a bearing beam;
FIGS. 7 to 10 are views showing the components in a large scale;
reference numerals: 1-pile top stiffening plate; 2-internal groined rib plates; 3-hollow round panel; 4-round steel pipe; 5-profiling cutting plate; 6-a stiffening plate; 7-a connecting plate; 8-bearing beam.
Detailed Description
The invention will be further described in detail by means of specific examples with reference to the accompanying drawings.
The invention realizes the following concrete implementation modes of the technical scheme:
as shown in fig. 1 to 10, the pile-beam connecting structure suitable for the offshore independent fixed concrete mixing station comprises a steel pipe pile, a bearing beam, an assembled pile cap and a bearing beam limiting device. The top of the steel pipe pile foundation is provided with an assembled pile cap, the assembled pile cap is connected with the bearing beam, and the bearing beam is limited by a bearing beam limiting device.
The assembled pile cap is mainly formed by welding a pile top stiffening plate 1, an internal # -shaped rib plate 2, a hollow round panel 3 and a round steel pipe 4, wherein the specification of the round steel pipe 4 needs to be consistent with that of a steel pipe pile, and the rest materials are steel plates with the thickness delta being 14 mm.
The spandrel girder limiting device mainly comprises a profile cutting plate 5, a stiffening plate 6 and a connecting plate 7, and all the materials are steel plates with the thickness delta of 10 mm.
A pile beam connecting method suitable for an offshore independent fixed concrete mixing station is realized mainly through an assembled pile cap and a bearing beam limiting device by adopting the connecting structure, the assembled pile caps are uniformly processed and formed in a factory, and the specification of a round steel pipe 4 is consistent with that of a field steel pipe pile; after the assembled pile cap is processed, the assembled pile cap is transported to the site for matching, after the site rechecking of the design coordinate and the elevation is correct, the circular steel pipe 4 and the steel pipe pile are welded into a whole, and the bearing beam 8 is installed after the welding is finished; and after the bearing beam 8 is completely installed in place, the bearing beam limiting device is welded in a full-welding mode.
The concrete construction steps are as follows:
the method comprises the following steps: and (3) processing and assembling the pile cap in a factory, selecting a round steel pipe 4 according to the type of the on-site steel pipe pile, ensuring the consistency of materials and sizes, wherein the length of the round steel pipe 4 is at least 2 times of the length of the pile top stiffening plate 1. The pile top stiffening plates 1 are arranged one by one at every 30 degrees, the total number is 12, the pile top stiffening plates are fully welded on the circular steel pipe 4 by adopting double faces, and the height of welding feet is not less than the thickness of a base metal; and then sequentially welding the internal # -shaped rib plate 2 and the hollow circular plate 3, wherein the contact parts of the internal # -shaped rib plate 2 and the hollow circular plate 3, the circular steel pipe 4 and the pile top stiffening plate 1 are all fully welded on two sides, and the height of the welding leg is not less than the thickness of the base metal. And (5) standing a finished product storage area after the processing is finished, and waiting for transporting to a field for installation.
Step two: and hoisting the assembled pile cap to the position right above the specified steel pipe pile by adopting field hoisting equipment, adjusting the assembled pile cap to a design coordinate and elevation by a measurer by adopting a total station, and fixing the round steel pipe 4 and the steel pipe pile by spot welding.
Step three: and after the design coordinates and the elevation of the rechecked assembled pile cap are correct, the full-welded round steel pipe 4 and the steel pipe pile are butted, and after the design coordinates and the elevation of the rechecked assembled pile cap of the steel pipe pile are correct, the hoisting can be released.
Step four: and (3) welding steel plates made of the same materials on the surfaces of the butt joints of the circular steel pipes 4 and the steel pipe piles, wherein the height of the welding leg is not less than the thickness of the base metal, and thus the assembling of the assembled pile cap is completed.
Step five: and (4) hoisting and installing the bearing beam 8 on site according to a design drawing.
Step six: and after the bearing beam 8 is installed, welding the profile cutting plate 5, the stiffening plate 6 and the connecting plate 7, wherein all contact surfaces of the profile cutting plate 5, the stiffening plate 6, the connecting plate 7, the hollow circular plate 3 of the steel pipe pile assembled pile cap and the bearing beam 8 are welded in a full-length mode, and the height of a welding leg is not less than the thickness of the base metal.
Claims (5)
1. The utility model provides a be applicable to marine independent fixed concrete mixing station stake roof beam connection structure which characterized in that: the structure comprises a steel pipe pile, a bearing beam, an assembled pile cap and a bearing beam limiting device, wherein the assembled pile cap is arranged at the top of a steel pipe pile foundation, the bearing beam is connected through the assembled pile cap, and the bearing beam limiting device is used for limiting.
2. Pile beam connection for an offshore independent fixed concrete mixing station according to claim 1, characterized in that: the assembled pile cap is formed by welding a pile top stiffening plate, an internal groined rib plate, a hollow round panel and a round steel pipe, the specification of the round steel pipe is consistent with that of the steel pipe pile, and the rest materials are steel plates with the thickness delta being 14 mm.
3. The method for offshore stand-alone fixed concrete mixing station pile beam connection according to claim 2, characterized in that: the spandrel girder limiting device is composed of a profiling cutting plate, a stiffening plate and a connecting plate, and all the materials are steel plates with the thickness delta being 10 mm.
4. The pile beam connecting method for the offshore independent fixed concrete mixing station is characterized by comprising the following steps of: the connecting structure of claim 3 is adopted, the assembled pile caps are processed and formed in a factory, the assembled pile caps are transported to the site for matching after being processed, the circular steel pipes in the assembled pile caps and the steel pipe piles are welded into a whole, and the bearing beam is installed after the welding is finished; and after the bearing beam is completely installed in place, welding the bearing beam limiting device.
5. The pile beam connecting method for the offshore independent fixed concrete mixing station according to claim 4, is characterized by comprising the following specific construction steps:
the method comprises the following steps: the method comprises the following steps that (1) an assembled pile cap is processed in a factory, a round steel pipe is selected according to the type of a steel pipe pile on site, and the length of the round steel pipe is at least 2 times of that of a pile top stiffening plate; the top of the assembled pile cap is provided with a plurality of pile top stiffening plates, the pile top stiffening plates are fully welded on the round steel pipe on two sides, then internal groined rib plates and hollow circular plates are sequentially welded, and the contact parts of the internal groined rib plates and the hollow circular plates with the round steel pipe and the pile top stiffening plates are fully welded on two sides;
step two: hoisting the assembled pile cap to the position right above the specified steel pipe pile by using field hoisting equipment, measuring and positioning the assembled pile cap to a designed coordinate and elevation, and fixing the round steel pipe and the steel pipe pile by spot welding;
step three: after rechecking the design coordinates and the elevation of the assembled pile cap, butt-welding the round steel pipe and the steel pipe pile, and after rechecking the design coordinates and the elevation of the assembled pile cap again, removing the hoisting;
step four: welding steel plates made of the same materials on the surfaces of the butt joints of the circular steel pipes and the steel pipe piles, and finishing the installation of the assembled pile caps;
step five: carrying out on-site hoisting and installation on the bearing beam according to a design drawing;
step six: and after the bearing beam is installed, welding the profile cutting plate, the stiffening plate and the connecting plate of the bearing beam limiting device, and fully welding all contact surfaces of the profile cutting plate, the stiffening plate and the connecting plate with the hollow circular plate of the assembled pile cap and the bearing beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967028.2A CN113699961A (en) | 2021-08-23 | 2021-08-23 | Pile-beam connecting structure and method for offshore independent fixed concrete mixing station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967028.2A CN113699961A (en) | 2021-08-23 | 2021-08-23 | Pile-beam connecting structure and method for offshore independent fixed concrete mixing station |
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| CN113699961A true CN113699961A (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110967028.2A Pending CN113699961A (en) | 2021-08-23 | 2021-08-23 | Pile-beam connecting structure and method for offshore independent fixed concrete mixing station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117332638A (en) * | 2023-09-22 | 2024-01-02 | 中国能源建设集团广东省电力设计研究院有限公司 | Anti-slip steel pipe pile suitable for large megawatt offshore wind turbine and optimization method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113389A (en) * | 2015-09-18 | 2015-12-02 | 河海大学 | Assembled type bridge pier column member with steel-concrete composite structure |
| CN208072383U (en) * | 2018-04-11 | 2018-11-09 | 中铁十一局集团第一工程有限公司 | A kind of Novel steel pile pile assembled pile cover |
| CN211849413U (en) * | 2020-02-26 | 2020-11-03 | 中交二公局第四工程有限公司 | Multifunctional steel pipe pile cap structure |
| CN213173791U (en) * | 2020-08-05 | 2021-05-11 | 中交第二航务工程局有限公司 | Assembled landing stage pile cap |
-
2021
- 2021-08-23 CN CN202110967028.2A patent/CN113699961A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113389A (en) * | 2015-09-18 | 2015-12-02 | 河海大学 | Assembled type bridge pier column member with steel-concrete composite structure |
| CN208072383U (en) * | 2018-04-11 | 2018-11-09 | 中铁十一局集团第一工程有限公司 | A kind of Novel steel pile pile assembled pile cover |
| CN211849413U (en) * | 2020-02-26 | 2020-11-03 | 中交二公局第四工程有限公司 | Multifunctional steel pipe pile cap structure |
| CN213173791U (en) * | 2020-08-05 | 2021-05-11 | 中交第二航务工程局有限公司 | Assembled landing stage pile cap |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117332638A (en) * | 2023-09-22 | 2024-01-02 | 中国能源建设集团广东省电力设计研究院有限公司 | Anti-slip steel pipe pile suitable for large megawatt offshore wind turbine and optimization method thereof |
| CN117332638B (en) * | 2023-09-22 | 2024-04-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Anti-slip steel pipe pile suitable for large megawatt offshore wind turbine and optimization method thereof |
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Application publication date: 20211126 |
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