Modularized reinforced concrete offshore floating platform and manufacturing method thereof

Abstract

The invention discloses a modular reinforced concrete offshore floating platform and a manufacturing method thereof, and relates to the technical field of offshore platforms. Comprising a plurality of buoyancy tanks, openings are formed in the upper portions of the buoyancy tanks, the buoyancy tanks are prefabricated through reinforced concrete, every two adjacent buoyancy tanks are spliced into a whole through a riveting structure, after the buoyancy tanks are spliced, trussed beams are poured on the upper portions of the buoyancy tanks in an extending mode, the trussed beams comprise transverse trussed beams and longitudinal trussed beams, the trussed beams are made of reinforced concrete, grooves are formed in the upper portions of the trussed beams, and the longitudinal trussed beams are made of reinforced concrete. Steel plates are connected into grooves of the trussed beams in an embedded mode. The modularized reinforced concrete offshore floating platform does not need a complex ship body anti-corrosion structure and is high in strength, and compared with a steel offshore floating platform, the cost is greatly reduced; the large-scale offshore floating platform can be manufactured in a short time through modular assembly and then one-piece pouring into a whole. And the service life is long, the economic benefit is remarkable, and the service life of an offshore floating platform made of concrete can reach hundreds of years underwater.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore platforms, and particularly relates to a modular reinforced concrete offshore floating platform and a manufacturing method thereof. Background Art

[0002] Traditional offshore floating platforms mostly adopt steel structures, which have problems such as high cost, easy corrosion affecting the service life, and high maintenance costs. Moreover, the integral design of the existing offshore floating platforms results in a long manufacturing time, difficult transportation and installation, and it is difficult to adapt to complex sea conditions. Summary of the Invention

[0003] Aiming at the above-mentioned technical deficiencies, the purpose of the present invention is to provide a high-strength, long-life, low-cost, and quickly assembled concrete offshore floating platform and a manufacturing method thereof to solve the problems mentioned in the background art.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a modular reinforced concrete offshore floating platform, which includes a plurality of floating boxes. The floating boxes are open at the top and are precast with reinforced concrete. Two adjacent floating boxes are assembled into a whole through a riveting structure. After a plurality of the floating boxes are assembled, a truss beam is poured and extended above. The truss beam includes a transverse truss beam and a longitudinal truss beam. The truss beam is made of reinforced concrete. A groove is opened above the truss beam, and a steel plate is embedded and connected in the groove of the truss beam.

[0005] Preferably, reinforcing rib bars are arranged inside the wall of the floating box to enhance the strength and stability of the floating box.

[0006] Preferably, the riveting structure includes an external hexagon bolt, an internal hexagon bolt, and a waterproof gasket. A positioning hole is opened at the end of the external hexagon bolt, and a positioning block protrudes at the end of the internal hexagon bolt. Two adjacent floating boxes are fixedly connected into a whole through the positioning hole on the external hexagon bolt and the cooperation of the positioning block on the internal hexagon bolt.

[0007] Preferably, a water pump is arranged at the bottom of the floating box.

[0008] Preferably, a GPS satellite positioning module is arranged inside the floating box.

[0009] The present invention provides a manufacturing method of a modular reinforced concrete offshore floating platform, which includes the following steps:

[0010] S1. Precast the floating box: Arrange the steel bar framework and reinforcing rib bars in a mold, and pour and form concrete.

[0011] S2. Assemble the floating boxes: After towing the floating boxes to a predetermined water area, connect a plurality of floating boxes into a whole through the riveting structure.

[0012] S3. Pour the truss beam: Erect the formwork on the top of the assembled floating box and pour to form the truss beam; S4. Install and groove the steel plate truss beam, and embed the steel plate into the truss beam groove and fix it.

[0013] The beneficial effects of the present invention are as follows:

[0014] The modular reinforced concrete offshore floating platform provided by the present invention does not require a complex hull anti-corrosion structure, has high strength, and significantly reduces costs compared with a steel offshore floating platform; through modular assembly and then integral casting into a whole, a large-scale and large offshore floating platform can be fabricated in a short time.

[0015] The modular reinforced concrete offshore floating platform provided by the present invention has a long service life and significant economic benefits. The offshore floating platform made of concrete can have a service life of up to hundreds of years underwater.

[0016] The modular reinforced concrete offshore floating platform provided by the present invention also has the following advantages:

[0017] Adopt integrated construction of reinforced concrete. Relying on the self-weight advantage of the material, it effectively reduces the overall center of gravity of the platform, enabling it to have excellent anti-wave and anti-wind capabilities under complex sea conditions and ensuring the safety of equipment and personnel;

[0018] High multi-functional integration, capable of realizing energy production, such as wind power, photovoltaic, and wave power generation, and can also realize the spatial coupling of fishery farming and industrial operations. Wind power equipment and photovoltaic matrices can be arranged in the upper space of the platform, large-scale fishery farming can be carried out in the middle water area, and the interface for wave power generation devices is reserved in the bottom structure. At the same time, it can also be used as an offshore operation base or an offshore entertainment and sightseeing platform, as well as an ocean scientific research and production platform, improving the space utilization rate;

[0019] Through prefabricated modular assembly of reinforced concrete, compared with the construction cost of traditional steel structure platforms, the cost is reduced, and the maintenance cycle is greatly extended; the platform simultaneously produces electric energy, fishery products and industrial services, shortening the investment return period. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is the overall structure schematic diagram provided by the present invention.

[0022] Figure 2 It is the overall structure cross-sectional view provided by the present invention.

[0023] Figure 3 Schematic diagram of the riveting structure provided by the present invention.

[0024] Explanation of reference numerals in the drawings: floating box 1, steel rib 11, girder 2, steel plate 3, transverse girder 21, longitudinal girder 22, water pump 4, external hexagon bolt 6, internal hexagon bolt 7, waterproof washer 8, positioning hole 61, positioning block 71. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment:

[0027] As Figures 1 - 3 shown,

[0028] The present invention provides a modular reinforced concrete offshore floating platform, including a plurality of floating boxes 1. The floating boxes 1 are open at the top and are precast with reinforced concrete. A plurality of the floating boxes 1 are assembled into a whole through a riveting structure. In this embodiment, the number of floating boxes 1 is four.

[0029] Steel ribs 11 are arranged inside the wall of the floating box 1 to enhance the strength and stability of the floating box 1.

[0030] After a plurality of the floating boxes 1 are assembled, a girder 2 is cast and extended above. The girder 2 includes a transverse girder 21 and a longitudinal girder 22. The girder 2 is made of reinforced concrete. A groove is opened above the girder 2, and a steel plate 3 is connected in the groove of the girder 2 in an embedded manner. The steel plate 3 is a marine steel plate, which can reduce the weight of the entire platform, increase the bearing capacity and the ability to resist wind and waves.

[0031] A water pump 4 is arranged at the bottom of the floating box 1.

[0032] The modular reinforced concrete offshore floating platform provided by the present invention further includes a GPS satellite positioning module, which generates electricity through energy such as wind, light, and waves at sea to achieve powered and anchorless positioning and floating. The high cost of traditional anchor chains is abandoned.

[0033] The riveting structure provided by this embodiment includes an external hexagonal bolt 6, an internal hexagonal bolt 7, and a waterproof gasket 8. A positioning hole 61 is provided at the end of the external hexagonal bolt 6, and a positioning block 71 protrudes from the end of the internal hexagonal bolt 7. Two adjacent floating boxes 1 are fixedly connected as a whole through the cooperation of the positioning hole 61 on the external hexagonal bolt 6 and the positioning block 71 on the internal hexagonal bolt 7, and the waterproof treatment of the riveting opening of the floating box 1 is carried out through the waterproof gasket 8. Multiple riveting structures can be provided on two adjacent floating boxes 1 to enhance the stability of the structure.

[0034] The present invention also provides a method for manufacturing a modular reinforced concrete offshore floating platform, including the following steps:

[0035] S1. Prefabricate the floating box: Arrange the steel bar skeleton and steel bar ribs 11 in the mold and pour concrete to form a mold.

[0036] S2. Assemble the floating box: After towing the floating box 1 to the predetermined water area, connect multiple floating boxes 1 into a whole through the rivet structure.

[0037] S3. Pour the girder: Erect a formwork on the top of the assembled floating box 1 and pour to form the girder 2; S4. Install the steel plate: Grooves are opened on the girder 2, and the steel plate 3 is embedded in the grooves of the girder 2 and fixed.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A modular reinforced concrete offshore floating platform, characterized in that, It includes multiple floating boxes (1), the floating boxes (1) are open at the top, precast with reinforced concrete, and two adjacent floating boxes (1) are assembled into a whole through a riveting structure. After multiple floating boxes (1) are assembled, a truss beam (2) is cast and extended above. The truss beam (2) includes a transverse truss beam (21) and a longitudinal truss beam (22). The truss beam (2) is made of reinforced concrete. A groove is formed above the truss beam (2), and a steel plate (3) is connected in an embedded manner in the groove of the truss beam (2).

2. The modular reinforced concrete offshore floating platform according to claim 1, wherein Reinforcing rib bars (11) are arranged inside the wall of the floating box (1) to enhance the strength and stability of the floating box (1).

3. The modular reinforced concrete offshore floating platform according to claim 1, wherein The riveting structure includes an external hexagonal bolt (6), an internal hexagonal bolt (7) and a waterproof gasket (8). A positioning hole (61) is formed at the end of the external hexagonal bolt (6), and a positioning block (71) protrudes at the end of the internal hexagonal bolt (7); two adjacent floating boxes (1) are fixedly connected into a whole through the cooperation of the positioning hole (61) on the external hexagonal bolt (6) and the positioning block (71) on the internal hexagonal bolt (7).

4. A modular reinforced concrete offshore floating platform according to claim 1, characterized in that, A water pump (4) is arranged at the bottom of the floating box (1).

5. A modular reinforced concrete offshore floating platform according to claim 1, characterized in that A GPS satellite positioning module is arranged inside the floating box (1).

6. The manufacturing method of the modular reinforced concrete offshore floating platform according to any one of claims 1-5, characterized in that It includes the following steps: S1. Precast floating box: Arrange a steel bar skeleton and reinforcing rib bars (11) in a mold, and cast and form concrete; S2. Assemble floating boxes: After towing the floating boxes (1) to a predetermined water area, connect multiple floating boxes (1) into a whole through a riveting structure; S3. Cast truss beam: Erect a formwork on the top of the assembled floating boxes (1) and cast to form a truss beam (2); S4. Install steel plate: A groove is formed on the truss beam (2), and the steel plate (3) is embedded in the groove of the truss beam (2) and fixed.

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