CN214033342U - Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in - Google Patents
Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in Download PDFInfo
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- CN214033342U CN214033342U CN202023114433.XU CN202023114433U CN214033342U CN 214033342 U CN214033342 U CN 214033342U CN 202023114433 U CN202023114433 U CN 202023114433U CN 214033342 U CN214033342 U CN 214033342U
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Abstract
The utility model discloses a novel high-strength anti-corrosion concrete filled steel tube pier applied to offshore buildings, which comprises a spiral hole sieve type steel cylinder, wherein a steel tube is sleeved outside the spiral hole sieve type steel cylinder, and a graphene anti-corrosion coating is coated outside the steel tube; outer layer concrete is poured between the spiral hole screen type steel cylinder and the steel pipe, a steel reinforcement cage is arranged in the spiral hole screen type steel cylinder, and inner layer concrete is poured on the inner side of the spiral hole screen type steel cylinder; a zinc block is arranged on the outer surface of the graphene anti-corrosion coating; the spiral hole sieve type steel cylinder comprises a plurality of steel cylinder bodies, each steel cylinder body comprises a through hole section and a spiral line section, the two adjacent steel cylinder bodies are connected in a welding mode, and the through hole sections and the spiral line sections are arranged at intervals. The utility model discloses can realize effectually preventing the sea water to the corruption of pier, can effectual extension pier's life reduces economic loss, enlarges concrete filled steel tube's application scope.
Description
Technical Field
The utility model relates to a bridge structural design and construction technical field especially relate to a be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in.
Background
In recent years, due to the development of offshore equipment, coasts, offshore oil drilling platforms, large-scale concrete engineering of marine defense infrastructure projects and the like of new ocean engineering, China has built and built a large number of various steel structures and reinforced concrete structure facilities in the fields of ocean oil and gas field development, port construction, deep sea exploration and the like, but the steel structures and the reinforced concrete structure facilities are extremely easy to be corroded by seawater, and once disastrous corrosion occurs, serious damage and huge economic loss can be caused. In the sea water, the offshore facilities are damaged by marine organisms and microorganisms in addition to electrochemical corrosion of the sea water.
If we do the research and protection work of the pier, a great deal of corrosion loss is completely avoidable. Therefore, the pier corrosion protection technology, especially the corrosion protection technology of key parts of steel facilities, has great significance for reducing the occurrence of serious disastrous accidents and prolonging the service life of offshore facilities.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be applied to marine building's novel anticorrosive steel core concrete pier that excels in to solve the problem that above-mentioned prior art exists, can realize effectually preventing the sea water to the corruption of pier, can effectual extension pier's life, reduce economic loss, enlarge steel core concrete's application scope.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a novel high-strength anti-corrosion concrete filled steel tube pier applied to offshore buildings, which comprises a spiral hole sieve type steel cylinder, wherein a steel tube is sleeved outside the spiral hole sieve type steel cylinder, and a graphene anti-corrosion coating is coated outside the steel tube; the spiral hole sieve type steel cylinder is characterized in that outer-layer concrete is poured between the spiral hole sieve type steel cylinder and the steel pipe, a steel reinforcement cage is arranged in the spiral hole sieve type steel cylinder, and inner-layer concrete is poured on the inner side of the spiral hole sieve type steel cylinder.
Preferably, a zinc block is arranged on the outer surface of the graphene anti-corrosion coating.
Preferably, the spiral hole sieve type steel cylinder comprises a plurality of steel cylinder bodies, each steel cylinder body comprises a through hole section and a spiral line section, the adjacent two steel cylinder bodies are fixedly connected, and the through hole sections and the spiral line sections are arranged at intervals.
Preferably, a plurality of through holes are circumferentially formed in the through hole section, the spiral thread section is provided with spiral threads, and the spiral threads are fixed on the inner wall of the steel cylinder body.
Preferably, connecting steel bars are bound on the surface of the steel reinforcement cage, and the connecting steel bars penetrate through the through holes in the through hole sections and extend into the outer-layer concrete.
Preferably, a prestressed steel wire is arranged between the outer concrete layer and the steel pipe, and the prestressed steel wire is wound on the outer surface of the outer concrete layer in an annular and longitudinal combined mode to form a prestressed steel wire layer.
Preferably, a mortar protective layer is arranged between the prestressed steel wire layer and the steel pipe.
The utility model discloses a following technological effect:
1. form graphite alkene anticorrosive coating through scribble graphite alkene outside the steel pipe, as the isolation layer of sea water and steel pipe, the erosion and corrosion of effectual resistance wave, the corrosion protection of reinforcing steel pipe, and at graphite alkene anticorrosive coating outside side wall mounting zinc block, because graphite alkene has good electric conductivity, appear damaging the back when graphite alkene anticorrosive coating, sea water corrodes the steel pipe, sea water is as electrolyte this moment, steel pipe and zinc block take place chemical reaction, thereby the zinc block can play the effect of protection steel pipe, and can observe whether graphite alkene anticorrosive coating damages through the change of zinc block, through the second step antiseptic measure of periodic replacement zinc block as the pier, improve the holistic corrosion protection of pier, and reduce technical cost.
2. In the process of pouring concrete, the concrete on the inner side and the concrete on the outer side can be mutually fused through the through holes on the surface of the steel cylinder body, so that the connection performance between the spiral sieve-hole type steel cylinder and the concrete is improved. Meanwhile, the connecting steel bars penetrate through the through holes in the spiral sieve-hole type steel cylinder and extend into the outer layer concrete, so that the bonding performance among the interfaces of the inner layer concrete, the spiral sieve-hole type steel cylinder and the outer layer concrete is improved, the layers are stressed together, and the bearing capacity of the whole structure is greatly improved. The spiral lines arranged on the inner wall of the spiral sieve-hole type steel cylinder increase the contact area of the spiral sieve-hole type steel cylinder and concrete, so that the spiral sieve-hole type steel cylinder has better fusion effect with inner layer concrete, and the bearing capacity of the corresponding concrete at the thread section is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 these drawings without inventive labor.
FIG. 1 is a top view of a novel high-strength anticorrosion concrete filled steel tube pier applied to offshore structures;
FIG. 2 is a schematic structural diagram of a steel cylinder body;
FIG. 3 is a front view of the novel high-strength anti-corrosion concrete filled steel tube bridge pier applied to the offshore construction;
FIG. 4 is a schematic structural view of a connection mode of a steel cylinder body and a steel reinforcement cage;
the concrete-reinforced concrete composite material comprises, by weight, 1-graphene anticorrosive coating, 2-steel pipe, 3-mortar protective layer, 4-prestressed wire layer, 5-outer concrete, 6-spiral hole sieve type steel cylinder, 61-steel cylinder body, 62-through hole section, 63-spiral line section, 64-through hole, 65-spiral line, 7-steel reinforcement cage, 71-connecting steel bar, 8-inner concrete and 9-zinc block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-4, the utility model provides a novel high-strength anticorrosion concrete-filled steel tube pier applied to offshore structures, which comprises a spiral hole sieve type steel cylinder 6, a steel tube 2 is sleeved outside the spiral hole sieve type steel cylinder 6, and a graphene anticorrosion coating 1 is arranged outside the steel tube 2; outer layer concrete 5 is poured between the spiral hole screen type steel cylinder 6 and the steel pipe 2, a steel reinforcement cage 7 is arranged in the spiral hole screen type steel cylinder 6, inner layer concrete 8 is poured on the inner side of the spiral hole screen type steel cylinder 6, and the graphene anticorrosive coating 1 is formed by spraying multiple layers of graphene on the outer side of the steel pipe 2.
Further, install zinc block 9 on the surface of graphite alkene anticorrosive coating 1, because graphite alkene has good electric conductivity, at graphite alkene anticorrosive coating 1's externally mounted zinc block 9, after graphite alkene anticorrosive coating 1 damages, the sea water corrodes steel pipe 2, and the sea water can be as electrolyte this moment to reach the purpose that consumes zinc block 9 protection steel pipe 2, observes graphite alkene anticorrosive coating 1 through the change of outside zinc block 9 and whether damages, and can continue to be the second step anticorrosion measure of pier through changing zinc block 9.
Further, spiral hole sieve formula steel cylinder 6 includes a plurality of steel cylinder body 61, steel cylinder body 61 includes through hole section 62 and spiral line section 63, adjacent two steel cylinder body 61 adopts fixed connection, through hole section 62 with spiral line section 63 interval sets up. The spiral sieve-hole type steel cylinder 6 is a structure that a through hole section 62 and a spiral line section 63 are arranged on a local section on the surface of a steel cylinder body 61 at intervals, two processes of straight seam welding or rotary welding can be adopted between the two steel cylinder bodies 61, and when a plurality of steel cylinder bodies 61 are welded and connected to form the spiral sieve-hole type steel cylinder 6, the through hole section 62 and the spiral line section 63 are arranged at intervals.
Further, a plurality of through holes 64 are circumferentially formed in the through hole section 62, the spiral thread section 63 is provided with spiral threads 65, and the spiral threads 65 are fixed on the inner wall of the steel cylinder body 61. In the process of pouring concrete, the inner concrete and the outer concrete can be mutually fused through the through holes 64 on the surfaces of the through hole sections 62, so that the connection performance between the steel and the concrete is effectively improved, and the shearing resistance between each layer is enhanced. And inner concrete 8 can be through the area of contact of spiral line 65 increase with steel cylinder body 61, and inner concrete 8 is effectual to be in the same place with steel cylinder body 61 combination to the effectual bearing capacity who improves the pier.
Further, the ligature has connecting reinforcement 71 on the steel reinforcement cage 7 surface, connecting reinforcement 71 passes through-hole 64 on the through-hole section 62 stretches into in the outer concrete 5, and steel reinforcement cage 7 passes through reinforcing bar 71 and is connected with outer concrete 5, and partly through-hole 64 uses as inner concrete 8 and outer concrete 5 intercommunication, and another part through-hole 64 uses as connecting reinforcement 71 passes steel cylinder body 61, and steel reinforcement cage 7, inner concrete 8, spiral sieve cellular type steel cylinder 6 and outer concrete 5 connect through connecting reinforcement 71, strengthen the whole steadiness of pier.
Furthermore, prestressed wires are arranged between the outer concrete layer 5 and the steel pipe 2, and the prestressed wires are wound on the outer surface of the outer concrete layer 5 in an annular and longitudinal combination manner to form a prestressed wire layer 4. Because the prestressed steel wire has better flexibility and does not have obvious yield point, the prestressed steel wire can be cut off according to the required length during use, and the circumferential and radial prestressed steel wire is wound on the surface of the outer concrete 5 to form a prestressed steel wire layer 4, so that a novel infusion pipeline main body structure is formed.
Further, a mortar protection layer 3 is arranged between the prestressed steel wire layer 4 and the steel pipe 2. Mortar is filled between the prestressed steel wire layer 4 and the steel pipe 2 to form a mortar protective layer 3, and meanwhile, the corrosion resistance of the prestressed steel wire is improved.
Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in its preparation include following step:
(1) welding a plurality of steel cylinder bodies 61 to form a spiral hole screen type steel cylinder 6, and arranging through hole sections 62 and spiral line sections 63 at intervals on the formed spiral hole screen type steel cylinder, hanging the bound reinforcement cage 7 into the spiral hole screen type steel cylinder 6, binding connecting reinforcements 71 on the reinforcement cage 7, and enabling the connecting reinforcements 71 to penetrate through partial through holes 64 and extend to the outside of the spiral hole screen type steel cylinder 6;
(2) building an external mould according to the size of the outer layer concrete 5, simultaneously pouring the outer layer concrete 5 and the inner layer concrete 8, carrying out high-frequency strong vibration on the poured concrete in the pouring process, dismantling the mould when the outer layer concrete 5 meets the strength requirement, and carrying out steam curing and demoulding on the tube cores of the poured outer layer concrete 5 and the inner layer concrete 8;
(3) winding a plurality of layers of circumferentially and longitudinally combined prestressed wires on the outer surface of the outer concrete 5 formed in the step (2) to form a prestressed wire layer 4, and hoisting the steel pipe 2 outside the outer concrete 5 to enable the formed concrete pier to be positioned inside the steel pipe 2;
(4) mortar is poured between the steel pipe 2 and the prestressed wire layer 4 to form the mortar protective layer 3;
(5) the outer portion of the steel pipe 2 is sprayed with multiple layers of graphene to form a graphene anticorrosive coating 1, and a plurality of zinc blocks 9 are arranged on the outer surface of the graphene anticorrosive coating 1.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to the offshore building is characterized by comprising a spiral hole sieve type steel tube (6), wherein a steel tube (2) is sleeved outside the spiral hole sieve type steel tube (6), and a graphene anti-corrosion coating (1) is arranged outside the steel tube (2); the spiral hole sieve type steel cylinder (6) and the outer layer concrete (5) are poured between the steel pipes (2), a steel reinforcement cage (7) is arranged in the spiral hole sieve type steel cylinder (6), and the inner layer concrete (8) is poured on the inner side of the spiral hole sieve type steel cylinder (6).
2. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to the offshore structure according to claim 1, wherein: and a zinc block (9) is arranged on the outer surface of the graphene anti-corrosion coating (1).
3. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to the offshore structure according to claim 1, wherein: spiral hole sieve formula steel cylinder (6) include a plurality of steel cylinder body (61), steel cylinder body (61) include through-hole section (62) and spiral line section (63), adjacent two steel cylinder body (61) fixed connection, through-hole section (62) with spiral line section (63) interval sets up.
4. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to the offshore structure according to claim 3, wherein: a plurality of through holes (64) are circumferentially formed in the through hole section (62), the spiral thread section (63) is provided with spiral threads (65), and the spiral threads (65) are fixed on the inner wall of the steel cylinder body (61).
5. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to the offshore structure according to claim 4, wherein: connecting steel bars (71) are bound on the surface of the steel reinforcement cage (7), and the connecting steel bars (71) penetrate through the through holes (64) in the through hole section (62) and extend into the outer concrete (5).
6. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to the offshore structure according to claim 1, wherein: and prestressed steel wires are arranged between the outer concrete layer (5) and the steel pipe (2), and are wound on the outer surface of the outer concrete layer (5) in an annular and longitudinal combined mode to form a prestressed steel wire layer (4).
7. The novel high-strength anti-corrosion concrete-filled steel tube pier applied to offshore structures according to claim 6, is characterized in that: and a mortar protective layer (3) is arranged between the prestressed steel wire layer (4) and the steel pipe (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023114433.XU CN214033342U (en) | 2020-12-22 | 2020-12-22 | Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in |
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| CN202023114433.XU CN214033342U (en) | 2020-12-22 | 2020-12-22 | Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112538816A (en) * | 2020-12-22 | 2021-03-23 | 沈阳建筑大学 | Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112538816A (en) * | 2020-12-22 | 2021-03-23 | 沈阳建筑大学 | Be applied to marine building's novel anticorrosive steel pipe concrete pier that excels in |
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