CN113737842A - Foundation structure for offshore crane and construction method thereof - Google Patents
Foundation structure for offshore crane and construction method thereof Download PDFInfo
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- CN113737842A CN113737842A CN202111085229.6A CN202111085229A CN113737842A CN 113737842 A CN113737842 A CN 113737842A CN 202111085229 A CN202111085229 A CN 202111085229A CN 113737842 A CN113737842 A CN 113737842A
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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
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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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
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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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
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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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
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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Abstract
The invention relates to the technical field of ocean engineering construction, and discloses a foundation structure for an offshore crane and a construction method thereof. The foundation structure for the offshore crane comprises a supporting device and an installation platform, wherein the supporting device comprises a plurality of supporting tubular piles and a connecting assembly used for connecting two adjacent supporting tubular piles, one ends of the supporting tubular piles are buried in the seabed, the other ends of the supporting tubular piles extend out of the sea level, the supporting tubular piles are connected with a platform foundation structure of an offshore concrete mixing station, and the installation platform is connected with the supporting tubular piles respectively and used for fixedly installing the crane. The invention has the advantages of high structural strength, good stability, simple construction operation, capability of efficiently and flexibly transferring and hoisting concrete raw materials, capability of smoothly, continuously and safely supplying large-volume concrete, capability of ensuring the construction safety under extreme working conditions, simple structure, high construction speed, easiness in construction quality control and capability of better adapting to severe offshore construction environments.
Description
Technical Field
The invention relates to the technical field of ocean engineering construction, in particular to a foundation structure for an offshore crane and a construction method thereof.
Background
In the construction process of ocean engineering, the concrete demand is very big, and especially during lower part foundation construction, the concrete demand is concentrated, therefore marine independent fixed concrete mixing station is adopted by more and more ocean engineering, and wherein the supply and the handling of concrete raw materials are the prerequisite of guaranteeing marine independent fixed concrete mixing station normal production. Under the general condition, the concrete raw material can be transported by adopting a conventional shipping mode, but under the severe marine environment, the key problem of the concrete raw material supply is how to ensure that the concrete raw material is safely, quickly and flexibly transferred and stored from a transport ship to a mixing station bin.
The conventional unloading mode adopted in engineering is crawler unloading and hoisting by a ship crane, but is influenced by sea wave tide, a transport ship swings along with the wave tide in sea water, raw materials are extremely easy to scatter or even fall into the sea in the process of crawler unloading or hoisting by the ship crane, and the defects of low efficiency, inflexibility and the like exist.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a foundation structure for an offshore crane, which has high structural strength, good stability, simple construction operation, and can efficiently and flexibly transfer and lift raw materials of concrete, and can smoothly, continuously and safely supply large quantities of concrete.
In view of the above problems, another object of the present invention is to provide a method for constructing a foundation structure for an offshore crane, which has high structural strength, good stability, and simple construction operation, can efficiently and flexibly transfer and lift a concrete raw material, and can smoothly, continuously and safely supply large-volume concrete.
In order to achieve the purpose, the invention adopts the following technical scheme:
a substructure for an offshore crane, comprising:
the supporting device comprises a plurality of supporting tubular piles and a connecting assembly for connecting two adjacent supporting tubular piles, one end of each supporting tubular pile is embedded into the sea bottom, the other end of each supporting tubular pile extends out of the sea level, and the supporting tubular piles are connected with a platform foundation structure of the offshore concrete mixing station;
and the mounting platforms are respectively connected with the supporting tubular piles and used for fixedly mounting the crane.
As an alternative of the foundation structure for the offshore crane, the connecting assembly comprises a connecting sleeve and a connecting rod, the connecting sleeve is arranged on the supporting tubular piles, one end of the connecting rod is connected with one supporting tubular pile, and the other end of the connecting rod is connected with the connecting sleeve on the other adjacent supporting tubular pile.
As an alternative of the foundation structure for the offshore crane, one end of the connecting rod is a flat end, the flat end is connected with the connecting sleeve, the other end of the connecting rod is an intersecting end, and the intersecting end is connected with the supporting tubular pile.
As an alternative of the foundation structure for the offshore crane, the mounting platform comprises a mounting frame, the supporting tubular pile is provided with a supporting piece, and the bottom of the mounting frame is connected with the supporting piece.
As an alternative of the foundation structure for the offshore crane, the mounting platform further comprises a reinforcing cross beam and a reinforcing longitudinal beam, the reinforcing cross beam and the reinforcing longitudinal beam are both arranged in the mounting frame, the number of the reinforcing cross beams is multiple, and each reinforcing cross beam is embedded and welded on the reinforcing longitudinal beam.
As an alternative of the foundation structure for the offshore crane of the present invention, the mounting frame is provided with a connecting plate, and the connecting plate is connected with the base of the crane.
As an alternative of the foundation structure for the offshore crane, the mounting frame is connected with the supporting tubular pile through a stiffening plate.
As an alternative of the foundation structure for the offshore crane of the present invention, the support member includes a first connection portion and a second connection portion connected to each other, the first connection portion is connected to the support pipe pile, and the second connection portion is connected to the mounting bracket.
As an alternative of the basic structure for the offshore crane of the present invention, the support member further includes a first reinforcing plate and a second reinforcing plate which are arranged at an interval, one side of each of the first reinforcing plate and the second reinforcing plate is connected to the first connecting portion, and the other adjacent side is connected to the second connecting portion.
A construction method of a foundation structure for an offshore crane adopts the foundation structure for the offshore crane, and comprises the following steps:
s1, pre-installing a connecting sleeve on the supporting tubular pile, inserting the supporting tubular pile to a preset elevation by the pile driving boat according to the design coordinate, and rechecking the design coordinate, the preset elevation and the height of the connecting sleeve;
s2, inserting the flat end of the connecting rod into a connecting sleeve on one supporting tubular pile, welding the intersecting end of the connecting rod with another adjacent supporting tubular pile, wherein the welding requirement is full-length welding, and the height of a welding leg is not less than the thickness of a base metal;
s3, welding a supporting piece on the supporting tubular pile according to the design position of the mounting frame, wherein the welding requirement is double-sided full-length welding, and the height of a welding leg is not less than the thickness of a base material;
s4, hoisting an installation frame by using on-site hoisting equipment, wherein the connection position of the installation frame and the support pipe pile adopts stiffening plates which are fully welded, and a connection plate is welded on the installation frame;
s5, hoisting the reinforcing cross beam and the reinforcing longitudinal beam into the mounting frame, embedding the reinforcing cross beam into the welding reinforcing longitudinal beam, welding the contact surface by full weld, and enabling the height of a welding leg to be not less than the thickness of the base metal;
and S6, welding the supporting tubular pile with a platform foundation structure of the offshore concrete mixing station, and finishing construction.
The invention has the beneficial effects that:
according to the foundation structure for the offshore crane, one end of each supporting tubular pile is embedded into the sea bottom, the other end of each supporting tubular pile extends out of the sea level, each supporting tubular pile is connected with the platform foundation structure of the offshore concrete mixing station, the installation platform is supported by the supporting tubular piles together, the adjacent two supporting tubular piles are reinforced by the connecting assembly, the structural strength is high, the crane is fixedly installed on the installation platform, a stable operation environment is provided for the crane to transfer and lift concrete raw materials, the influence of severe offshore environment on concrete construction is reduced, the offshore concrete mixing station is guaranteed to better and more quickly supply large-volume concrete for offshore engineering in a centralized manner, and meanwhile, the high efficiency, flexibility and safety in the construction process are guaranteed. The foundation structure for the offshore crane provided by the invention has the advantages of high structural strength, good stability, simple construction operation, capability of efficiently and flexibly transferring and hoisting concrete raw materials, capability of smoothly, continuously and safely supplying large-volume concrete, capability of ensuring the construction safety under extreme working conditions, simple structure, high construction speed, easiness in construction quality control, capability of better adapting to severe offshore construction environment, saving construction period while controlling the construction quality and safety, and certain engineering economic benefit.
The invention provides a construction method of a foundation structure for an offshore crane, which comprises the steps of pre-installing a connecting sleeve on a supporting tubular pile, inserting the supporting tubular pile to a preset elevation by a pile driving boat according to a design coordinate, and rechecking the design coordinate, the preset elevation and the height of the connecting sleeve; the flat end of the connecting rod is inserted into a connecting sleeve on one supporting tubular pile, the intersecting end of the connecting rod is welded and connected with the adjacent other supporting tubular pile, the welding requirement is full-length welding, and the height of a welding leg is not less than the thickness of a base metal; welding a supporting piece on the supporting tubular pile according to the design position of the mounting frame, wherein the welding requirement is double-sided full-length welding, and the height of a welding leg is not less than the thickness of a base material; hoisting an installation frame by using on-site hoisting equipment, wherein the connection position of the installation frame and the supporting tubular pile is a stiffening plate fully welded, and a connecting plate is welded on the installation frame; hoisting the reinforcing cross beam and the reinforcing longitudinal beam into the mounting frame, embedding the reinforcing cross beam into the welding reinforcing longitudinal beam, welding the contact surface by full welding, and enabling the height of a welding leg to be not less than the thickness of a base metal; and (4) welding the supporting tubular pile with a platform foundation structure of the offshore concrete mixing station, and finishing construction. The construction method of the foundation structure for the offshore crane provided by the invention has the advantages of high structural strength, good stability, simple construction operation, capability of efficiently and flexibly transferring and hoisting the concrete raw materials, capability of smoothly, continuously and safely supplying large-volume concrete, capability of ensuring the construction safety under extreme working conditions, simple structure, high construction speed, easiness in construction quality control, capability of better adapting to severe offshore construction environments, capability of saving the construction period while controlling the construction quality and safety, and certain engineering economic benefits.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic front view of a base structure for an offshore crane provided by an embodiment of the present invention;
FIG. 2 is a schematic side view of a base structure for an offshore crane provided by an embodiment of the present invention;
FIG. 3 is a schematic front view of a support in a base structure for an offshore crane according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a support member of a base structure for an offshore crane according to an embodiment of the present invention;
FIG. 5 is a schematic side view of a support in a base structure for an offshore crane according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a mounting platform in the foundation structure for an offshore crane according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a connection plate in a foundation structure for an offshore crane according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a stiffening plate in a foundation structure for an offshore crane according to an embodiment of the present invention.
In the figure:
1-a support device; 2-mounting a platform;
11-supporting the tubular pile; 12-a connecting assembly; 13-a support;
121-a connecting sleeve; 122-a connecting rod;
131-a first connection; 132-a second connecting portion; 133-a first reinforcement plate; 134-a second reinforcement plate;
21-a mounting frame; 22-reinforcing the beam; 23-reinforcing the longitudinal beam; 24-a connecting plate; 25-a stiffening plate.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 8, the present embodiment provides a foundation structure for an offshore crane, which includes a supporting device 1 and a mounting platform 2. The supporting device 1 comprises a plurality of supporting tubular piles 11 and a connecting assembly 12 used for connecting two adjacent supporting tubular piles 11, one ends of the supporting tubular piles 11 are embedded into the sea bed, the other ends of the supporting tubular piles extend out of the sea level, and the supporting tubular piles 11 are connected with a platform foundation structure of an offshore concrete mixing station. The mounting platform 2 is respectively connected with a plurality of supporting tubular piles 11 and used for fixedly mounting a crane.
In this embodiment, support tubular pile 11 and be provided with threely, three support tubular pile 11 is triangular distribution, and coupling assembling 12 between two adjacent support tubular piles 11 is provided with two along the direction of height interval, when reducing construction cost and complexity, has guaranteed that strutting arrangement 1 has sufficient structural strength. The supporting tubular pile 11 is connected with a platform foundation structure of the offshore concrete mixing station, so that the foundation structure for the offshore crane and the platform foundation structure of the offshore concrete mixing station form a whole, and the stability of the foundation structure for the offshore crane is further enhanced.
As shown in fig. 1 and fig. 2, optionally, the connection assembly 12 includes a connection sleeve 121 and a connection rod 122, the connection sleeve 121 is disposed on the support pipe pile 11, one end of the connection rod 122 is connected to one support pipe pile 11, and the other end is connected to the connection sleeve 121 on another adjacent support pipe pile 11. The connecting sleeve 121 is pre-installed on the supporting tubular pile 11, the pile driving boat inserts the supporting tubular pile 11 to a predetermined elevation according to the design coordinate, and then connects two adjacent supporting tubular piles 11 together through the connecting rod 122.
Optionally, one end of the connecting rod 122 is a flat end, the flat end is connected to the connecting sleeve 121, and the other end of the connecting rod 122 is an intersecting end, and the intersecting end is connected to the supporting tubular pile 11. The intersecting line end of the connecting rod 122 is a curved surface and is attached to the outer wall of the supporting tubular pile 11, the intersecting line end of the connecting rod 122 can be welded with the supporting tubular pile 11, the welding requirement is full-length welding, and the height of a welding leg is not less than the thickness of a base metal.
As shown in fig. 1, 2 and 6, optionally, the mounting platform 2 includes a mounting frame 21, the support tube pile 11 is provided with a support member 13, and the bottom of the mounting frame 21 is connected to the support member 13. The mounting frame 21 can be triangular, and the triangular structure is stable and not easy to damage. The mounting frame 21 is supported by the support piece 13, so that the gravity application action area of the mounting frame 21 is enlarged, and the strength requirement of the supporting tubular pile 11 is reduced.
As shown in fig. 3, 4 and 5, optionally, the support member 13 includes a first connecting portion 131 and a second connecting portion 132 connected with each other, the first connecting portion 131 is connected with the support tube pile 11, and the second connecting portion 132 is connected with the mounting frame 21. First connecting portion 131 and second connecting portion 132 set up perpendicularly, and first connecting portion 131 is the curved surface form, with the outer wall laminating of supporting tubular pile 11, and second connecting portion 132 level sets up to horizontal support mounting bracket 21.
Optionally, the supporting member 13 further includes a first reinforcing plate 133 and a second reinforcing plate 134 arranged at an interval, one side of each of the first reinforcing plate 133 and the second reinforcing plate 134 is connected to the first connecting portion 131, and the other adjacent side is connected to the second connecting portion 132. The first and second reinforcing plates 133 and 134 are formed in a triangular plate-shaped structure and may be connected to the first and second connecting portions 131 and 132 by welding.
Optionally, the mounting platform 2 further includes a reinforcing cross beam 22 and a reinforcing longitudinal beam 23, the reinforcing cross beam 22 and the reinforcing longitudinal beam 23 are both disposed in the mounting frame 21, the reinforcing cross beam 22 is provided in plurality, and each reinforcing cross beam 22 is embedded and welded on the reinforcing longitudinal beam 23. In the present embodiment, the reinforcing longitudinal beam 23 is provided with one reinforcing transverse beam 22, the reinforcing transverse beam 22 is arranged at the high position of the triangular mounting frame 21, each reinforcing transverse beam 22 is perpendicular to the reinforcing longitudinal beam 23, the reinforcing transverse beams 22 are embedded in the reinforcing longitudinal beams 23 and welded, the contact surface is welded by full welding, and the height of the welding leg is not less than the thickness of the base metal.
Optionally, a connecting plate 24 is disposed on the mounting frame 21, and the connecting plate 24 is connected to the base of the crane. As shown in fig. 7, the connecting plate 24 is rectangular and can be fixedly connected to the base of the crane by fasteners such as screws and nuts. As shown in fig. 1 and 8, in order to improve the connection strength between the mounting frame 21 and the support tube pile 11, optionally, the mounting frame 21 is connected to the support tube pile 11 through a stiffening plate 25.
The foundation structure for marine crane that this embodiment provided, structural strength is high, stability is good, construction easy operation, can be high-efficient, carry out the unloading and the handling of concrete raw and other materials in a flexible way, can be smooth, continuously and carry out the supply of big prescription concrete safely, guarantee the construction safety under extreme operating mode, moreover, the steam generator is simple in structure, construction speed is fast, construction quality easily controls, can adapt to abominable marine construction environment better, construction period has been practiced thrift when controlling construction quality and safety, certain engineering economic benefits has.
The embodiment also provides a construction method of the foundation structure for the offshore crane, and the construction method comprises the following steps:
s1, pre-installing the connecting sleeve 121 on the supporting tubular pile 11, inserting the supporting tubular pile 11 to a preset elevation by the pile driving boat according to the design coordinate, and rechecking the design coordinate, the preset elevation and the height of the connecting sleeve 121;
s2, inserting the flat end of the connecting rod 122 into the connecting sleeve 121 on one supporting tubular pile 11, welding the intersecting end of the connecting rod 122 with another adjacent supporting tubular pile 11, wherein the welding requirement is full-length welding, and the height of a welding leg is not less than the thickness of a base material;
s3, welding the supporting piece 13 on the supporting tubular pile 11 according to the design position of the mounting frame 21, wherein the welding requirement is double-sided full-length welding, and the height of a welding leg is not less than the thickness of the base metal;
s4, hoisting the mounting frame 21 by using on-site hoisting equipment, wherein the connecting position of the mounting frame 21 and the supporting tubular pile 11 adopts stiffening plates 25 which are fully welded, and the connecting plate 24 is welded on the mounting frame 21;
s5, hoisting the reinforcing cross beam 22 and the reinforcing longitudinal beam 23 into the mounting frame 21, embedding the reinforcing cross beam 22 into the welding reinforcing longitudinal beam 23, welding the contact surface by full welding, and enabling the height of a welding leg to be not less than the thickness of a base material;
and S6, welding the support pipe pile 11 with a platform foundation structure of the offshore concrete mixing station, and finishing construction.
The construction method of the foundation structure for the offshore crane provided by the embodiment has the advantages of high structural strength, good stability, simple construction operation, capability of efficiently and flexibly transferring and hoisting the concrete raw materials, smooth, continuous and safe large-volume concrete supply, guarantee of construction safety under extreme working conditions, simple structure, high construction speed, easiness in construction quality control, capability of better adapting to severe offshore construction environment, saving of construction period while control over construction quality and safety, and certain engineering economic benefits.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A foundation structure for an offshore crane, comprising:
the supporting device (1) comprises a plurality of supporting tubular piles (11) and a connecting assembly (12) for connecting two adjacent supporting tubular piles (11), one end of each supporting tubular pile (11) is embedded into the sea bottom, the other end of each supporting tubular pile extends out of the sea level, and each supporting tubular pile (11) is connected with a platform foundation structure of an offshore concrete mixing station;
and the mounting platform (2) is respectively connected with the plurality of supporting tubular piles (11) and is used for fixedly mounting a crane.
2. Foundation structure for offshore cranes, according to claim 1, characterized in that said connection assembly (12) comprises a connection sleeve (121) and a connection rod (122), said connection sleeve (121) being arranged on said support piles (11), said connection rod (122) being connected at one end to one of said support piles (11) and at the other end to the connection sleeve (121) on the other adjacent support pile (11).
3. Foundation structure for offshore cranes, according to claim 2, characterized in that one end of the connecting rod (122) is a flat end, which is connected to the connecting sleeve (121), and the other end of the connecting rod (122) is a intersecting end, which is connected to the support pipe pile (11).
4. A substructure according to any of the claims 1-3, characterized in that said installation platform (2) comprises a mounting frame (21), said support piles (11) are provided with support members (13), the bottom of said mounting frame (21) is connected with said support members (13).
5. Foundation structure for offshore cranes, according to claim 4, characterized in that said mounting platform (2) further comprises reinforcing cross beams (22) and reinforcing longitudinal beams (23), said reinforcing cross beams (22) and said reinforcing longitudinal beams (23) being both arranged inside said mounting frame (21), said reinforcing cross beams (22) being provided in plurality, each reinforcing cross beam (22) being insert-welded to said reinforcing longitudinal beam (23).
6. Foundation structure for offshore cranes, according to claim 4, characterized in that the mounting frame (21) is provided with a connection plate (24), said connection plate (24) being connected to the base of the crane.
7. Foundation structure for offshore cranes, according to claim 4, characterized in that the mounting frame (21) is connected to the support piles (11) by stiffening plates (25).
8. Foundation structure for an offshore crane, according to claim 4, characterized in that said support (13) comprises a first connection (131) and a second connection (132) connected, said first connection (131) being connected to said support pile (11) and said second connection (132) being connected to said mounting frame (21).
9. The substructure for an offshore crane according to claim 8, wherein the supporting member (13) further comprises a first reinforcing plate (133) and a second reinforcing plate (134) arranged at intervals, one side of each of the first reinforcing plate (133) and the second reinforcing plate (134) is connected to the first connecting portion (131), and the other adjacent side is connected to the second connecting portion (132).
10. A construction method of a foundation structure for an offshore crane, characterized in that the foundation structure for an offshore crane according to any one of claims 1 to 9 is used, comprising the steps of:
s1, pre-installing a connecting sleeve (121) on the supporting tubular pile (11), inserting the supporting tubular pile (11) to a preset elevation by the pile driving boat according to the design coordinate, and rechecking the design coordinate, the preset elevation and the height of the connecting sleeve (121);
s2, inserting the flat end of the connecting rod (122) into a connecting sleeve (121) on one supporting tubular pile (11), welding the intersecting end of the connecting rod (122) and the adjacent other supporting tubular pile (11) in a welding manner, wherein the welding requirement is full-length welding, and the height of a welding leg is not less than the thickness of a base material;
s3, welding a support piece (13) on the support tubular pile (11) according to the design position of the mounting frame (21), wherein the welding requirement is double-sided full-length welding, and the height of a welding leg is not less than the thickness of a base material;
s4, hoisting the mounting frame (21) by using on-site hoisting equipment, wherein the connecting position of the mounting frame (21) and the supporting tubular pile (11) adopts stiffening plates (25) which are fully welded, and the mounting frame (21) is welded with a connecting plate (24);
s5, hoisting the reinforcing cross beam (22) and the reinforcing longitudinal beam (23) into the mounting frame (21), embedding and welding the reinforcing longitudinal beam (23) into the reinforcing cross beam (22), wherein the contact surface is welded by full weld, and the height of a welding leg is not less than the thickness of a base material;
s6, welding the supporting tubular pile (11) with a platform foundation structure of the offshore concrete mixing station, and finishing construction.
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| CN202111085229.6A CN113737842B (en) | 2021-09-16 | 2021-09-16 | Foundation structure for offshore crane and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111085229.6A CN113737842B (en) | 2021-09-16 | 2021-09-16 | Foundation structure for offshore crane and construction method thereof |
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| CN113737842A true CN113737842A (en) | 2021-12-03 |
| CN113737842B CN113737842B (en) | 2023-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114541460A (en) * | 2022-01-25 | 2022-05-27 | 中交二公局第三工程有限公司 | Cement tank foundation suitable for silt geology and construction method |
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| CN211735477U (en) * | 2019-12-10 | 2020-10-23 | 中建桥梁有限公司 | A tower crane foundation structure for bridge tower construction |
| CN112813791A (en) * | 2021-02-03 | 2021-05-18 | 广东省水利水电第三工程局有限公司 | Support for cast-in-situ box girder and construction method thereof |
Cited By (1)
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| CN114541460A (en) * | 2022-01-25 | 2022-05-27 | 中交二公局第三工程有限公司 | Cement tank foundation suitable for silt geology and construction method |
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