CN214985948U - Combined floating body structure unit - Google Patents
Combined floating body structure unit Download PDFInfo
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- CN214985948U CN214985948U CN202121330282.3U CN202121330282U CN214985948U CN 214985948 U CN214985948 U CN 214985948U CN 202121330282 U CN202121330282 U CN 202121330282U CN 214985948 U CN214985948 U CN 214985948U
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Abstract
The utility model discloses a combination body constitutional unit, including FRP outer tube, built-in cavity stainless steel inner tube in the FRP outer tube and fill the super high performance concrete between FRP outer tube and stainless steel inner tube, and both ends lid has closed sealed lid. The utility model has the advantages of thin wall, light in weight, bear the weight of dynamic height, corrosion resistance is good, construction simple to operate, have reduced material, template, maintenance cost, can practice thrift the cost.
Description
Technical Field
The utility model relates to an ocean, structural engineering field especially relate to a combination body constitutional unit.
Background
In recent years, countries have vigorously developed offshore wind power, however facing offshore typhoon risks and unfavorable seabed condition challenges as well as transition water depth and sea area challenges. Deep sea floatation is an important way to meet the challenge, and the floating platform structure is mostly in the form of reinforced concrete and steel structures. For example, chinese patent publication No. CN107487421A, publication No. 2017.12.19: but the no bottom plate concrete floating platform of one shot pouring shaping modularization concatenation, this patent discloses the integral type floating platform who utilizes reinforced concrete and steel construction form, but this kind of structure corrosion resistance is all relatively poor, corrodes easily and degenerates in the ocean or in adverse circumstances such as moist wetland.
SUMMERY OF THE UTILITY MODEL
The utility model provides a combined floating body structure unit solves the problem that current floating platform structure corrodes easily and degenerates in the ocean or adverse circumstances such as damp wetland. The utility model has the advantages of thin wall, light in weight, bear the weight of dynamic height, corrosion resistance is good, construction simple to operate, have reduced material, template, maintenance cost, can practice thrift the cost.
The technical scheme of the utility model is that:
a combined floating body structure unit comprises an FRP outer pipe, a hollow stainless steel inner pipe arranged in the FRP outer pipe and ultrahigh-performance concrete filled between the FRP outer pipe and the stainless steel inner pipe, wherein sealing covers are covered at two ends of the concrete.
Fiber-reinforced polymer (FRP) is increasingly applied to ocean engineering and structural engineering due to the advantages of light weight, high strength, corrosion resistance, fatigue resistance and the like; ultra-high performance concrete (UHPC for short) is widely applied to the field of civil engineering due to the advantages of Ultra-high strength, high durability, high toughness and the like; when the surface of the stainless steel is contacted with a corrosive medium, alloy elements contained in the steel and the corrosive medium can perform oxidation-reduction reaction, and a thin oxide film is formed on the surface of the steel, so that the formed oxide film can effectively prevent a steel substrate in the stainless steel from being continuously corroded by the corrosive medium.
The utility model discloses combine three kinds of materials of FRP, ultra high performance concrete, stainless steel can full play respective advantage, form and have the thin light in weight of wall, bear the weight of the dynamic height, the ductility is good, corrosion resisting property is good, the body structure of advantages such as construction simple to operate to reduce material, template, maintenance cost, practice thrift the cost greatly.
Furthermore, the stainless steel inner pipes are uniformly arranged in the FRP outer pipe at intervals along the horizontal direction, and gaps between the FRP outer pipe and the stainless steel inner pipes are filled with the ultrahigh-performance concrete.
Through a plurality of stainless steel inner tube that sets up to the clearance packing between inner tube and the outer tube has super high performance concrete, makes body constitutional unit form many boxed structures, adapts to different application scenes, reinforcing practicality.
Furthermore, a plurality of shear connectors are arranged on the outer surface of the stainless steel inner pipe according to load.
Further, the shear connector comprises a shear connector key in the form of a stainless steel shear pin with or without a pin cap, a perforated stainless steel plate, or the like.
The load capacity and the connection strength are enhanced through the shear connector, so that the structure of the floating body structure unit is enhanced, the service life is prolonged, and the durability is improved.
Further, the shear connector is fixed on the outer surface of the stainless steel inner pipe through welding.
Further, the FRP outer pipe is a prefabricated winding pipe, and a carbon fiber FRP pipe or a glass fiber FRP pipe or a basalt FRP pipe is adopted.
Further, the floating body structure unit can be a cuboid, a cylinder and other space geometric bodies.
Further, the stainless steel inner tube can adopt 304 austenitic stainless steel or 316 austenitic stainless steel or 2205 bidirectional stainless steel; the stainless steel inner pipe can also be replaced by a high-strength steel pipe.
Further, the sealing cover is a stainless steel cover plate, the sealing cover is connected with the stainless steel inner pipe through four-side girth welding, and a gap between the ultrahigh-performance concrete and the sealing cover is subjected to sealing treatment.
Further, the sealing cover is provided with a rim plate on the peripheral side, the sealing cover covers the end face of the whole structural unit, and the rim plate on the peripheral side extends to cover the outer surface of the FRP outer pipe. The sealing performance of the whole cover is enhanced, the end face of the floating body structure unit is prevented from being corroded by seawater, and the durability is enhanced.
The utility model has the advantages that:
the utility model discloses a combination body constitutional unit adopts FRP outer tube, stainless steel inner tube and adopts the ultra high performance concrete to fill between two pipes, has strengthened corrosion resistance and structural strength, adopts hollow stainless steel inner tube simultaneously and adds the lid sealed lid at both ends, and hollow air that holds the intracavity will make body constitutional unit reinforcing buoyancy, has reduced current buoyancy material's packing simultaneously, practices thrift the cost. The utility model discloses combine three kinds of materials of FRP, ultra high performance concrete, stainless steel can full play respective advantage, form and have the thin light in weight of wall, bear the weight of the dynamic height, the ductility is good, corrosion resisting property is good, the body structure of advantages such as construction simple to operate to reduce material, template, maintenance cost, practice thrift the cost greatly.
Drawings
Fig. 1 is a schematic structural view of the combined floating body structure unit of the present invention;
FIG. 2 is a schematic view of the combined floating structure unit covered with a sealing cover;
FIG. 3 is a schematic structural view of a two-box combined buoyant structure unit;
FIG. 4 is a schematic structural view of a triple box combined buoyant structure unit;
FIG. 5 is a schematic structural diagram of the splicing of a plurality of single-box combined floating body structural units;
in the figure: the steel pipe comprises an FRP outer pipe 1, a stainless steel inner pipe 2, ultrahigh-performance concrete 3, a sealing cover 4 and a shear connector 5.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1:
fiber-reinforced polymer (FRP) is increasingly applied to ocean engineering and structural engineering due to the advantages of light weight, high strength, corrosion resistance, fatigue resistance and the like; ultra-high performance concrete (UHPC for short) is widely applied to the field of civil engineering due to the advantages of Ultra-high strength, high durability, high toughness and the like; when the surface of the stainless steel is contacted with a corrosive medium, alloy elements contained in the steel and the corrosive medium can perform oxidation-reduction reaction, and a thin oxide film is formed on the surface of the steel, so that the formed oxide film can effectively prevent a steel substrate in the stainless steel from being continuously corroded by the corrosive medium.
In view of this, the utility model discloses combine three kinds of materials of FRP, ultra high performance concrete, stainless steel can full play respective advantage, form the body constitutional unit that has advantages such as thin wall light in weight, bear the weight of the dynamic height, the ductility is good, corrosion resisting property is good, construction simple to operate to reduce material, template, maintenance cost, practice thrift the cost greatly.
The specific implementation mode is as follows:
as shown in fig. 1 and 2, a combined floating body structure unit includes a rectangular FRP outer pipe 1, a hollow rectangular stainless steel inner pipe 2 built in the FRP outer pipe 1, and ultra high performance concrete 3 filled between the FRP outer pipe 1 and the stainless steel inner pipe 2, and both ends are covered with sealing caps.
The utility model discloses a combination body constitutional unit adopts FRP outer tube 1, stainless steel inner tube 2 and adopts ultra high performance concrete 3 to fill between two pipes, has strengthened corrosion resistance and structural strength, adopts hollow stainless steel inner tube 2 simultaneously and adds the sealed lid 4 of covering at the unit both ends, and hollow air that holds the intracavity will make body constitutional unit reinforcing buoyancy, has reduced current buoyancy material's packing simultaneously, practices thrift the cost.
In the present embodiment, the outer surface of the stainless steel inner tube 2 is provided with a plurality of shear connectors 5 according to the load, the shear connectors 5 are fixed on the four outer surfaces of the stainless steel inner tube 2 by welding, wherein the shear connectors 5 comprise shear connectors in the form of stainless steel shear nails with or without nail caps, perforated stainless steel plates, and the like. The load capacity and the connection strength are enhanced through the shear connection member 5, so that the structure of the floating body structure unit is enhanced, and the service life and the durability are prolonged.
In this embodiment, the FRP outer tube 1 is a prefabricated wound tube, and a carbon fiber FRP tube, a glass fiber FRP tube, or a basalt FRP tube may be used.
In the present embodiment, the stainless steel inner tube 2 may be 304 austenitic stainless steel, 316 austenitic stainless steel or 2205 duplex stainless steel; the stainless steel inner tube 2 may be replaced with a high-strength steel tube.
In this embodiment, the sealing cover 4 is a stainless steel cover plate having a certain rigidity, the sealing cover 4 and the stainless steel inner tube 2 are connected by four-side girth welding, and a gap between the ultra-high performance concrete 3 and the sealing cover 4 is sealed. And, the week side of sealed lid 4 is equipped with the border board, and sealed lid 4 covers the terminal surface of whole constitutional unit, and the border board of week side extends to cover the surface of FRP outer tube 1, strengthens the holistic lid of unit and closes the leakproofness, avoids the terminal surface to receive sea water erosion, strengthens the durability.
In this embodiment, the floating body structure unit may be a cuboid, a cylinder, or other space geometry.
The specific manufacturing process of the combined floating body structure unit is as follows:
1. prefabricating and producing an FRP pipe 1 and a hollow stainless steel inner pipe 2 in a factory;
2. welding shear connectors 5 on four outer sides of the stainless steel inner pipe 2 and sandblasting the inner surface of the FRP pipe 1;
3. the FRP pipe 1 and the stainless steel inner pipe 2 are concentrically and vertically placed;
4. pouring ultrahigh-performance concrete 3 between the FRP pipe 1 and the stainless steel inner pipe 2;
5. after curing and forming, the sealing covers 4 at the two end parts are connected with the end surface of the stainless steel inner pipe 2 inside through four-side girth welding, the sealing covers 4 cover the whole end surface, the edge plates on the peripheral side extend to cover the outer surface of the FRP pipe 1, and finally, sealing treatment is carried out on the gap between the concrete and the sealing covers 4.
As shown in fig. 3, in this embodiment, two stainless steel inner pipes 2 are arranged in the FRP outer pipe 1 at even intervals in the horizontal direction, and the gap between the FRP outer pipe 1 and the two stainless steel inner pipes 2 is filled with ultra-high performance concrete 3, so that the floating body structural unit forms two box-type structures; in a similar way, as shown in fig. 4, when three stainless steel inner tubes 2 which are arranged in the horizontal direction and are uniformly spaced are arranged in the FRP outer tube 1, the three stainless steel inner tubes are of a three-box structure, and by analogy, the combined floating body structural unit can form a multi-box structure according to actual requirements, so that different application scenes are adapted, and the practicability is enhanced.
As shown in fig. 5, in this embodiment, a plurality of single-box type combined floating body structure units can be spliced into a whole in a clamping manner to form a larger floating body platform; similarly, the two-box type or three-box type multi-box type structure can be spliced to form a larger floating platform; the adopted splicing mode can be a fastening mode, a clamping mode, a riveting mode and other modes which are convenient to mount and dismount.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The combined floating body structure unit is characterized by comprising an FRP outer pipe (1), a hollow stainless steel inner pipe (2) which is arranged in the FRP outer pipe (1) and ultrahigh-performance concrete (3) which is filled between the FRP outer pipe (1) and the stainless steel inner pipe (2), wherein sealing covers (4) are covered at two ends.
2. The combined floating body structural unit according to claim 1, wherein a plurality of the stainless steel inner pipes (2) are uniformly spaced in the horizontal direction inside the FRP outer pipe (1), and gaps between the FRP outer pipe (1) and the plurality of the stainless steel inner pipes (2) are filled with the ultra high performance concrete (3).
3. A combined floating body structure unit according to claim 1, characterized in that the outer surface of the stainless steel inner pipe (2) is provided with a number of shear connectors (5) depending on the load.
4. A combined floating body structure unit according to claim 3, characterized in that the shear connection (5) comprises a stainless steel shear pin, with or without a cap, a shear connection key in the form of an open-pored stainless steel plate.
5. A combined floating body structure unit according to claim 3, characterized in that the shear connection (5) is fixed to the outer surface of the stainless steel inner pipe (2) by welding.
6. A combined floating body structure unit according to claim 1, characterized in that the FRP outer pipe (1) is a prefabricated wound pipe, using carbon fiber FRP pipe or glass fiber FRP pipe or basalt FRP pipe.
7. The combined buoyant structure unit of claim 1 wherein the buoyant structure unit is a cuboid or cylinder.
8. A combined floating body structure unit according to claim 1, characterized in that the stainless steel inner tube (2) is 304 austenitic stainless steel or 316 austenitic stainless steel or 2205 duplex stainless steel.
9. The combined floating body structure unit according to claim 1, wherein the sealing cover (4) is a stainless steel cover plate, the sealing cover (4) is connected with the stainless steel inner pipe (2) by four-side girth welding, and a gap between the ultra high performance concrete (3) and the sealing cover (4) is sealed.
10. A combined floating body structure unit according to claim 9, characterized in that the sealing cover (4) is provided with a rim plate on its peripheral side, the sealing cover (4) covers the end face of the whole structure unit, and the rim plate on its peripheral side extends to cover the outer surface of the FRP outer pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121330282.3U CN214985948U (en) | 2021-06-15 | 2021-06-15 | Combined floating body structure unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121330282.3U CN214985948U (en) | 2021-06-15 | 2021-06-15 | Combined floating body structure unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214985948U true CN214985948U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121330282.3U Active CN214985948U (en) | 2021-06-15 | 2021-06-15 | Combined floating body structure unit |
Country Status (1)
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| CN (1) | CN214985948U (en) |
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2021
- 2021-06-15 CN CN202121330282.3U patent/CN214985948U/en active Active
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