Hollow interlayer steel pipe coagulation tower drum

Abstract

The utility model relates to the technical field of wind power generation, in particular to a hollow interlayer steel pipe coagulation tower drum. Comprising a foundation platform; the number of the segmented tower barrels is at least two, the segmented tower barrels are arranged above the foundation platform, and every two adjacent segmented tower barrels are distributed in the axial direction; the tower drum connecting assemblies are suitable for being connected with two adjacent segmented tower drums and comprise a plurality of first bent bolts, the first bent bolts penetrate through the two adjacent segmented tower drums, the two ends of each first bent bolt are located on the outer sides of the segmented tower drums, and the two ends of each first bent bolt are screwed on the two adjacent segmented tower drums through nuts respectively. And the first bent bolt and the second bent bolt are not exposed when being connected, and are not easy to corrode when being used on the sea.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and particularly relates to a hollow sandwich steel tube concrete tower barrel. Background Art

[0002] With the increasing capacity of wind turbines, the loads on the wind turbine tower barrels are synchronously increasing and becoming more complex. The height of the tower barrels in low wind speed areas is getting higher and higher. The hollow sandwich steel tube concrete tower barrel has the advantages of convenient construction and no need for prestress application compared with the reinforced concrete tower barrel; compared with the all-steel tower barrel, it can adapt to complex wind resource projects and has a lower cost.

[0003] In the current hollow sandwich concrete structure, the connection structure between the upper and lower tower barrels mostly adopts flange settings at the ends of the two tower barrels respectively and direct connection of the flanges with bolts and the bolts are exposed. When used at sea in this way, the connection structure is prone to corrosion. Content of the Utility Model

[0004] Therefore, the utility model aims to overcome the technical problems to be solved in the prior art, and thus provides a hollow sandwich steel tube concrete tower barrel.

[0005] The utility model provides a hollow sandwich steel tube concrete tower barrel, including:

[0006] A foundation platform;

[0007] Segmented tower barrels, at least two, arranged above the foundation platform, and two adjacent segmented tower barrels are axially distributed;

[0008] Tower barrel connection components, multiple groups, suitable for connecting two adjacent segmented tower barrels, including a plurality of first bent bolts, the first bent bolts penetrate through two adjacent segmented tower barrels and both ends are located outside the segmented tower barrels, and both ends of the first bent bolts are respectively tightened on two adjacent segmented tower barrels through nuts;

[0009] Foundation platform connection components, multiple groups, suitable for connecting the foundation platform and the lowest segmented tower barrel, including a plurality of second bent bolts, the second bent bolts respectively penetrate through the segmented tower barrel and the foundation platform and both ends are located outside the segmented tower barrel and the segmented tower barrel, and both ends of the second bent bolts are respectively tightened on the segmented tower barrel and the foundation platform through nuts.

[0010] Further, the segmented tower barrel includes:

[0011] An external steel cylinder and an internal steel cylinder, the internal steel cylinder is located inside the external steel cylinder, and there is a gap between the external steel cylinder and the internal steel cylinder;

[0012] Top sealing plates and bottom sealing plates, arranged at both ends of the external steel cylinder and the internal steel cylinder, forming a sealed structure with the external steel cylinder and the internal steel cylinder, and concrete is poured in the sealed structure;

[0013] Grouting holes and grouting injection holes are arranged on the inner steel cylinder;

[0014] A steel cylinder connection assembly is arranged on the outer steel cylinder and the inner steel cylinder and is adapted to connect the outer steel cylinder and the inner steel cylinder.

[0015] Furthermore, a plurality of exhaust holes are formed in the top sealing plate.

[0016] Furthermore, the steel cylinder connection assembly includes:

[0017] A threaded sleeve is arranged in the gap between the outer steel cylinder and the inner steel cylinder, and one end thereof is fixedly connected to the outer steel cylinder;

[0018] An anchor bolt penetrates through the inner steel cylinder. One end of the anchor bolt is screwed into the threaded sleeve, and the other end is fixedly connected to the inner steel cylinder.

[0019] Furthermore, the tower barrel connection assembly includes:

[0020] An upper annular flange is fixedly arranged at the upper end of the inner steel cylinder;

[0021] There are multiple upper embedded pipes, which are adapted to the shape of the first bent bolt. One end is arranged on the top sealing plate, and the other end is arranged on the upper annular flange;

[0022] A lower annular flange is fixedly arranged at the lower end of the inner steel cylinder;

[0023] Lower embedded pipes, corresponding to the upper embedded pipes one by one, are adapted to the shape of the bent bolt. One end is arranged on the bottom sealing plate, and the other end is arranged on the lower annular flange;

[0024] When two adjacent segmented tower barrels are connected, the adjacent upper embedded pipe and lower embedded pipe form an embedded pipe. The first bent bolt is arranged in the embedded pipe, and both ends of the first bent bolt are tightened to the upper annular flange and the lower annular flange respectively through nuts.

[0025] Furthermore, the foundation platform connection assembly includes:

[0026] An embedded ring is cast integrally with the foundation platform;

[0027] There are multiple foundation platform embedded pipes, which are arranged on the embedded ring;

[0028] When the lowest segmented tower barrel and the foundation platform are connected, the lower embedded pipe on the lowest segmented tower barrel and the foundation platform embedded pipe form an embedded pipe. The second bent bolt is arranged in the embedded pipe, and both ends of the second bent bolt are tightened to the segmented tower barrel and the foundation platform respectively through nuts.

[0029] Further, the embedded ring includes:

[0030] Upper segmented ring plates, which are multiple and are cast inside the foundation platform. The multiple upper segmented ring plates are spliced into an upper ring plate;

[0031] Lower segmented ring plates, corresponding to the upper segmented ring plates one by one, are located below the upper segmented ring plates. The multiple lower segmented ring plates are spliced into a lower ring plate;

[0032] Wherein, the embedded pipe of the foundation platform penetrates through the upper segmented ring plate and is arranged on the lower segmented ring plate;

[0033] When the lowermost segmented tower barrel is connected to the foundation platform, both ends of the second bent bolt are respectively tightened on the lower segmented ring plate and the lower annular flange through nuts.

[0034] Further, the embedded ring further includes:

[0035] Ring plate connection components, which are multiple groups and are suitable for connecting two adjacent upper segmented ring plates and connecting the upper segmented ring plate and the lower segmented ring plate.

[0036] Further, the ring plate connection component includes:

[0037] Flange plates, which are connected and arranged on the end sides of the upper segmented ring plate and the corresponding lower segmented ring plate.

[0038] Further, the ring plate connection component further includes:

[0039] Connection bolts, which penetrate and connect two adjacent flange plates and are suitable for connecting two adjacent flange plates.

[0040] The technical solution of the present utility model has the following advantages:

[0041] For a hollow sandwich steel pipe concrete tower barrel provided by the present utility model, the first bent bolt penetrates through two adjacent segmented tower barrels and both ends are located outside the segmented tower barrels and are respectively tightened on two adjacent segmented tower barrels through nuts. The second bent bolt respectively penetrates through the segmented tower barrel and the foundation platform and both ends are located outside the segmented tower barrel and the segmented tower barrel, and both ends are respectively tightened on the segmented tower barrel and the foundation platform through nuts. This can make the first bent bolt and the second bent bolt not exposed outside during connection and not easily corroded when used at sea.

[0042] For a hollow sandwich steel pipe concrete tower barrel provided by the present utility model, by pouring into the closed structure formed by the external steel cylinder, the internal steel cylinder, the top sealing plate and the bottom sealing plate through the grouting holes, segmented prestressed concrete tower barrels can be obtained. Each segmented prestressed steel pipe concrete tower barrel can perform prefabrication processes such as steel member welding and concrete pouring in a prefabrication factory in advance, which is convenient for the rapid assembly and connection of the overall tower barrel at the construction site.

[0043] A hollow sandwich steel - concrete tower barrel provided by the utility model is provided with a threaded sleeve and anchor bolts between an outer steel cylinder and an inner steel cylinder. One end of the threaded sleeve is fixedly connected to the outer steel cylinder, one end of the anchor bolt is fixedly connected to the inner steel cylinder, and the other ends of the threaded sleeve and the anchor bolt are screwed together. While connecting the outer steel cylinder and the inner steel cylinder, the connection strength between the outer steel cylinder and the inner steel cylinder is further increased.

[0044] When two adjacent segmented tower barrels of the hollow sandwich steel - concrete tower barrel provided by the utility model are connected, both ends of the first bent bolt are respectively fixed on the upper annular flange and the lower annular flange, and the middle part of the first bent bolt is arranged in a pre - embedded pipe. When used at sea, the corrosion of the first bent bolt can be slowed down.

[0045] The lowest - end segmented tower barrel of the hollow sandwich steel - concrete tower barrel provided by the utility model is connected to a foundation platform. Both ends of the second bent bolt are respectively fixed on the lower segmented ring plate and the lower annular flange, and the middle part of the second bent bolt is arranged in a pre - embedded pipe. When used at sea, the corrosion of the second bent bolt can be slowed down. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0047] Figure 1 It is a schematic structural diagram of the present utility model;

[0048] Figure 2 It is an enlarged schematic structural diagram A of the present utility model;

[0049] Figure 3 It is an enlarged schematic structural diagram B of the present utility model;

[0050] Figure 4 It is a schematic structural diagram of the segmented tower barrel of the present utility model;

[0051] Figure 5 It is a schematic structural diagram of the pre - embedded ring of the present utility model.

[0052] Description of the reference numerals in the drawings;

[0053] 1. Foundation platform; 2. Segmented tower barrel; 3. First bent bolt; 4. Second bent bolt; 5. External steel cylinder; 6. Internal steel cylinder; 7. Top sealing plate; 8. Bottom sealing plate; 9. Threaded sleeve; 10. Anchor bolt; 11. Upper annular flange; 12. Upper embedded pipe; 13. Lower annular flange; 14. Lower embedded pipe; 15. Foundation platform embedded pipe; 16. Upper segmented ring plate; 17. Lower segmented ring plate; 18. Flange plate. Detailed implementation manner

[0054] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0055] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0056] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0057] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0058] Embodiment

[0059] As Figures 1 to 5 shown in the detailed implementation manner of a hollow sandwich steel pipe concrete tower barrel, this hollow sandwich steel pipe concrete tower barrel includes:

[0060] Foundation platform 1;

[0061] The segmented tower barrel 2, with at least two segments, is arranged above the foundation platform 1, and two adjacent segmented tower barrels 2 are distributed axially. It can be regarded as dividing the circumferentially hollow sandwich steel tube concrete tower barrel into several segments along the height direction, and connecting adjacent segmented steel tube concrete tower barrels with bent bolts. Each segmented tower barrel 2 can be prefabricated in a prefabrication factory through processes such as steel member welding and concrete pressure casting to achieve rapid assembly connection of the entire tower barrel.

[0062] The tower barrel connection assembly, with multiple groups, is suitable for connecting two adjacent segmented tower barrels 2, including multiple first bent bolts 3. The first bent bolts 3 penetrate through two adjacent segmented tower barrels 2 and both ends are located outside the segmented tower barrels 2. Both ends of the first bent bolts 3 are tightened on two adjacent segmented tower barrels 2 through nuts respectively; both ends of the first bent bolts 3 are exposed inside the segmented tower barrels 2.

[0063] The foundation platform connection assembly, with multiple groups, is suitable for connecting the foundation platform 1 and the lowest segmented tower barrel 2, including multiple second bent bolts 4. The second bent bolts 4 penetrate through the segmented tower barrel 2 and the foundation platform 1 respectively and both ends are located outside the segmented tower barrel 2 and the foundation platform 1. Both ends of the second bent bolts 4 are tightened on the segmented tower barrel 2 and the foundation platform 1 through nuts respectively. Both ends of the second bent bolts 4 are exposed inside the segmented tower barrel 2 and the foundation platform 1.

[0064] It can make the first bent bolts 3 and the second bent bolts 4 not exposed outside during connection and not easily corroded when used at sea. The segmented tower barrels 2 are connected with each other, and the foundation platform 1 and the segmented tower barrel 2 are also connected with each other through bent bolts to improve the maintenance period and service life.

[0065] Furthermore, the segmented tower barrel 2 includes:

[0066] An external steel cylinder 5 and an internal steel cylinder 6. The internal steel cylinder 6 is located inside the external steel cylinder 5, and there is a gap between the external steel cylinder 5 and the internal steel cylinder 6; both the external steel cylinder 5 and the internal steel cylinder 6 can be frustum-shaped with the upper part smaller and the lower part larger.

[0067] A top sealing plate 7 and a bottom sealing plate 8 are arranged at both ends of the external steel cylinder 5 and the internal steel cylinder 6, forming a sealed structure with the external steel cylinder 5 and the internal steel cylinder 6, and concrete is poured inside the sealed structure;

[0068] A grouting hole and a grouting injection hole are arranged on the internal steel cylinder 6. The grouting hole can be arranged at the bottom end position of the internal steel cylinder 6;

[0069] A steel cylinder connection assembly is arranged on the external steel cylinder 5 and the internal steel cylinder 6, suitable for connecting the external steel cylinder 5 and the internal steel cylinder 6.

[0070] The closed structure formed by the external steel cylinder 5, the internal steel cylinder 6, the top sealing plate 7 and the bottom sealing plate 8 is poured through the grouting holes, and a segmented prestressed concrete tower barrel can be obtained. Each segmented prestressed concrete steel pipe tower barrel can perform prefabrication processes such as steel component welding and concrete pouring in a prefabrication factory in advance, which is convenient for the rapid assembly and connection of the overall tower barrel at the construction site.

[0071] Specifically, the concrete pouring work can be completed in the prefabrication factory. The concrete is injected into the cavity inside the closed structure through the grouting holes. After the cavity is filled with concrete, the grouting holes are blocked with plugs. The grouting holes are pressurized grouting holes, and the function of the pressurized grouting holes is to continuously pressurize the non-solidified concrete. The concrete is continuously injected into the cavity through the pressurized grouting holes, so that the concrete is in a compressed state, and it is cooled and formed while maintaining the compressed state to form a prestressed concrete tower barrel, greatly improving the tensile performance of the concrete column and the overall safety of the tower barrel. The initial compressive stress of the prestressed concrete can preferably reach above the tensile strength of the concrete, minimizing the cracking probability of the concrete column under the action of the load to ensure the stability of the concrete column stiffness during the whole life cycle.

[0072] Furthermore, a number of exhaust holes are opened on the top sealing plate 7. The exhaust holes can be used for exhausting air during pouring.

[0073] Furthermore, the steel cylinder connection assembly includes:

[0074] A threaded sleeve 9 is arranged in the gap between the external steel cylinder 5 and the internal steel cylinder 6, and one end is fixedly connected with the external steel cylinder 5;

[0075] An anchor bolt 10 penetrates through the internal steel cylinder 6. One end of the anchor bolt 10 is screwed into the threaded sleeve 9, and the other end is fixedly connected with the internal steel cylinder 6.

[0076] A threaded sleeve 9 and an anchor bolt 10 are arranged between the external steel cylinder 5 and the internal steel cylinder 6. One end of the threaded sleeve 9 is fixedly connected with the external steel cylinder 5, one end of the anchor bolt 10 is fixedly connected with the internal steel cylinder 6, and the other ends of the threaded sleeve 9 and the anchor bolt 10 are screwed together. While connecting the external steel cylinder 5 and the internal steel cylinder 6, the connection strength between the external steel cylinder 5 and the internal steel cylinder 6 is further increased. To enhance the stiffness of the entire tower barrel and the integrity of the external steel cylinder 5 and the internal steel cylinder 6, and also increase the stiffness and load-bearing capacity of the entire tower barrel, so as to achieve the purpose of reducing the steel consumption of the tower barrel, saving costs, and solving the problem of the high cost of the steel tower barrel of the wind turbine.

[0077] Specifically, the tail of the threaded sleeve 9 is welded to the external steel cylinder 5, and the anchor bolt 10 passes through the hole opened on the internal steel cylinder 6 and is screwed into the threaded sleeve 9. Then the tail of the anchor bolt 10 is welded to the internal steel cylinder 6 to ensure airtightness. This structure strengthens the bonding ability between the concrete, the external steel cylinder 5 and the internal steel cylinder 6.

[0078] Furthermore, the tower barrel connection assembly includes:

[0079] An upper annular flange 11, fixedly arranged at the upper end of the inner steel barrel 6;

[0080] A plurality of upper embedded pipes 12, adapted to the shape of the first bent bolt 3, one end is arranged on the top sealing plate 7 and the other end is arranged on the upper annular flange 11;

[0081] A lower annular flange 13, fixedly arranged at the lower end of the inner steel barrel 6;

[0082] Both the upper annular flange 11 and the lower annular flange 13 can be annular inclined flanges, and can be welded and arranged at the inner side position of the inner steel barrel 6. Specifically, an annular inclined steel plate, that is, an annular inclined flange, is welded on the inner wall of the tower barrel as the tightening surface of the bent bolt.

[0083] A lower embedded pipe 14, corresponding to the upper embedded pipe 12 one by one, adapted to the shape of the bent bolt, one end is arranged on the bottom sealing plate 8 and the other end is arranged on the lower annular flange 13;

[0084] When two adjacent segmented tower barrels 2 are connected, the adjacent upper embedded pipes 12 and lower embedded pipes 14 form an embedded pipe, the first bent bolt 3 is arranged in the embedded pipe, and both ends of the first bent bolt 3 are respectively tightened with the upper annular flange 11 and the lower annular flange 13 through nuts. The bent bolts and the embedded pipes in the present application are both arcs, and the radii of the two are equal. Both ends of the first bent bolt 3 and the second bent bolt 4 are straight line segments, which are suitable for installing nuts, and washers can also be sleeved on the bent bolts at the nut positions. The first bent bolt 3 and the second bent bolt 4 are both arranged in a circumferential array along the tower barrel, and the torque applied to the nuts and the number of bent bolts can be calculated according to the load borne by the tower barrel.

[0085] When two adjacent segmented tower barrels 2 are connected, both ends of the first bent bolt 3 are respectively fixed on the upper annular flange 11 and the lower annular flange 13, and the middle part of the first bent bolt 3 is arranged in the embedded pipe. When used at sea, the corrosion of the first bent bolt 3 can be slowed down.

[0086] Furthermore, the foundation platform connection assembly includes:

[0087] An embedded ring, cast integrally with the foundation platform 1; the embedded ring needs to be embedded when the foundation platform 1 is cast.

[0088] A plurality of foundation platform embedded pipes 15, arranged on the embedded ring;

[0089] When the foundation platform 1 is cast, the embedded ring is adjusted and then embedded in the foundation platform 1 to ensure the accuracy of each foundation platform embedded pipe 15 after the foundation platform 1 is cast.

[0090] When the lowest segment tower barrel 2 and the foundation platform 1 are connected, the lower embedded pipe 14 on the lowest segment tower barrel 2 and the foundation platform embedded pipe 15 form an embedded pipe, and the second bent bolt 4 is arranged in the embedded pipe. Both ends of the second bent bolt 4 are tightened on the segment tower barrel 2 and the foundation platform 1 through nuts respectively.

[0091] Among them, the foundation platform 1 can be annular, and an annular boss is arranged at the upper end position inside the foundation platform 1. The embedded ring can be arranged on the boss. When the lowest segment tower barrel 2 and the foundation platform 1 are connected, in fact, the lowest segment tower barrel 2 is connected to the boss.

[0092] Furthermore, the embedded ring includes:

[0093] Upper segment ring plates 16, which are multiple and are cast inside the foundation platform 1. The multiple upper segment ring plates 16 are spliced into an upper ring plate; the upper segment ring plates 16 can be cast inside the boss.

[0094] Lower segment ring plates 17, which correspond to the upper segment ring plates 16 one by one and are located below the upper segment ring plates 16. The multiple lower segment ring plates 17 are spliced into a lower ring plate; the lower segment ring plates 17 can be arranged at the lower end side position of the boss.

[0095] In order to reduce the transportation size, the upper ring plate and the lower ring plate are divided into several segments.

[0096] Among them, the foundation platform embedded pipe 15 penetrates through the upper segment ring plates 16 and is arranged on the lower segment ring plates 17; the foundation platform embedded pipe 15 can be fixedly connected to the upper segment ring plates 16 and the lower segment ring plates 17 respectively. Specifically, welding can be adopted.

[0097] When the lowest segment tower barrel 2 is connected to the foundation platform 1, both ends of the second bent bolt 4 are tightened on the lower segment ring plate 17 and the lower annular flange 13 through nuts respectively. The middle part of the second bent bolt 4 is arranged in the embedded pipe. When used at sea, the corrosion of the second bent bolt 4 can be slowed down.

[0098] Furthermore, the embedded ring also includes:

[0099] Ring plate connection components, which are multiple groups and are suitable for connecting two adjacent upper segment ring plates 16 and connecting the upper segment ring plates 16 and the lower segment ring plates 17.

[0100] Furthermore, the ring plate connection components include:

[0101] Flange plates 18, which are connected and arranged at the end sides of the upper segment ring plates 16 and the corresponding end sides of the lower segment ring plates 17.

[0102] Furthermore, the ring plate connection assembly further includes:

[0103] Connecting bolts, which are penetrated and connected to two adjacent flange plates 18, and are adapted to connect the two adjacent flange plates 18.

[0104] The beneficial effects of this application include:

[0105] 1. The precast hollow concrete-filled steel tube tower barrel proposed in this application can provide an assembled hollow concrete-filled steel tube tower barrel structure with good economy and high precast degree, and has the advantages of cheap concrete, good stiffness and excellent tensile performance of steel structure.

[0106] 2. For the precast hollow concrete-filled steel tube tower barrel proposed in this application, the stiffness of the tower barrel is increased by the concrete cylinder. On the premise of meeting the overall stiffness requirements of the tower barrel, the steel consumption can be greatly reduced, and the cost can be saved by up to 5-10%, which greatly improves the economy of the offshore tower barrel.

[0107] 3. For the concrete pressure casting process proposed in this application, the concrete is injected between the two layers of steel tubes through the grouting holes. After the cavity is filled with concrete, the concrete is continuously injected into the cavity through the grouting holes, so that the concrete is in a compressed state, and is cooled and formed while maintaining the compressed state. For the prestressed concrete ring, the concrete is in a compressed state in the circumferential, radial and axial directions, which can greatly improve the compressive and tensile properties of the concrete, thereby improving the overall bearing capacity and safety performance of the tower barrel.

[0108] 4. The structure proposed in this application that connects the inner and outer steel cylinders into a whole through the threaded sleeve 9 and the anchor bolts 10 increases the integrity of the inner and outer structures and solves the problem of the inner and outer steel cylinders being staggered under force.

[0109] 5. The bent bolt connection structure between the two layers of tower barrels proposed in this application hides all the connecting parts inside the tower barrel. For offshore applications, it can effectively reduce the corrosion of bolts. Installation and maintenance are also more convenient.

[0110] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the creative utility model.

Claims

1. A hollow sandwich concrete-filled steel tube tower cylinder, characterized in that Comprising: Base platform (1); Segmented tower barrels (2), at least two, arranged above the base platform (1), and two adjacent segmented tower barrels (2) are distributed axially; Tower barrel connection components, multiple groups, adapted to connect two adjacent segmented tower barrels (2), including a plurality of first bent bolts (3), the first bent bolts (3) penetrate through two adjacent segmented tower barrels (2) and both ends are located outside the segmented tower barrels (2), and both ends of the first bent bolts (3) are tightened on two adjacent segmented tower barrels (2) through nuts respectively; Base platform connection components, multiple groups, adapted to connect the base platform (1) and the lowest segmented tower barrel (2), including a plurality of second bent bolts (4), the second bent bolts (4) penetrate through the segmented tower barrel (2) and the base platform (1) respectively and both ends are located outside the segmented tower barrel (2) and the segmented tower barrel (2), and both ends of the second bent bolts (4) are tightened on the segmented tower barrel (2) and the base platform (1) through nuts respectively.

2. The concrete-filled steel tubular hollow sandwich tower cylinder according to claim 1, wherein The segmented tower barrel (2) includes: External steel cylinder (5) and internal steel cylinder (6), the internal steel cylinder (6) is located inside the external steel cylinder (5), and there is a gap between the external steel cylinder (5) and the internal steel cylinder (6); Top sealing plate (7) and bottom sealing plate (8), arranged at both ends of the external steel cylinder (5) and the internal steel cylinder (6), forming a sealed structure with the external steel cylinder (5) and the internal steel cylinder (6), and concrete is poured in the sealed structure; Grouting holes and grouting holes, arranged on the internal steel cylinder (6); Steel cylinder connection components, arranged on the external steel cylinder (5) and the internal steel cylinder (6), adapted to connect the external steel cylinder (5) and the internal steel cylinder (6).

3. The concrete-filled steel tubular tower with a hollow interlayer according to claim 2, characterized in that, A plurality of exhaust holes are provided on the top sealing plate (7).

4. The concrete-filled steel tubular hollow sandwich tower cylinder according to claim 2, characterized in that, The steel cylinder connection components include: Threaded sleeve (9), arranged in the gap between the external steel cylinder (5) and the internal steel cylinder (6), and one end is fixedly connected to the external steel cylinder (5); Anchor bolt (10), penetrating through the internal steel cylinder (6), one end of the anchor bolt (10) is screwed into the threaded sleeve (9), and the other end is fixedly connected to the internal steel cylinder (6).

5. The concrete-filled steel tubular tower with a hollow sandwich according to claim 2, characterized in that, The tower barrel connection components include: Upper annular flange (11), fixedly arranged at the upper end of the internal steel cylinder (6); Upper embedded pipes (12), multiple, adapted to the shape of the first bent bolts (3), one end is arranged on the top sealing plate (7), and the other end is arranged on the upper annular flange (11); Lower annular flange (13), fixedly arranged at the lower end of the internal steel cylinder (6); Lower embedded pipes (14), corresponding to the upper embedded pipes (12) one by one, adapted to the shape of the bent bolts, one end is arranged on the bottom sealing plate (8), and the other end is arranged on the lower annular flange (13); When two adjacent segmented tower barrels (2) are connected, adjacent upper embedded pipes (12) and lower embedded pipes (14) form an embedded pipe, the first bent bolts (3) are arranged in the embedded pipe, and both ends of the first bent bolts (3) are tightened with the upper annular flange (11) and the lower annular flange (13) through nuts respectively.

6. The concrete-filled steel tubular tower with a hollow interlayer according to claim 5, wherein, The base platform connection components include: The embedded ring is cast integrally with the foundation platform (1); There are multiple foundation platform embedded pipes (15) arranged on the embedded ring; When connecting the lowest segmented tower barrel (2) and the foundation platform (1), the lower embedded pipe (14) on the lowest segmented tower barrel (2) and the foundation platform embedded pipe (15) form an embedded pipe, and the second bent bolt (4) is arranged in the embedded pipe. The two ends of the second bent bolt (4) are respectively tightened on the segmented tower barrel (2) and the foundation platform (1) through nuts.

7. The concrete-filled steel tubular hollow sandwich tower cylinder according to claim 6, characterized in that The embedded ring includes: Multiple upper segmented ring plates (16) are cast inside the foundation platform (1), and the multiple upper segmented ring plates (16) are spliced into an upper ring plate; Lower segmented ring plates (17) correspond to the upper segmented ring plates (16) one by one and are located below the upper segmented ring plates (16). The multiple lower segmented ring plates (17) are spliced into a lower ring plate; Wherein, the foundation platform embedded pipe (15) penetrates through the upper segmented ring plate (16) and is arranged on the lower segmented ring plate (17); When the lowest segmented tower barrel (2) is connected to the foundation platform (1), the two ends of the second bent bolt (4) are respectively tightened on the lower segmented ring plate (17) and the lower annular flange (13) through nuts.

8. The concrete-filled steel tubular hollow sandwich tower cylinder according to claim 7, wherein The embedded ring further includes: Multiple sets of ring plate connection components are adapted to connect two adjacent upper segmented ring plates (16) and connect the upper segmented ring plates (16) and the lower segmented ring plates (17).

9. The concrete-filled steel tubular hollow sandwich tower cylinder according to claim 8, wherein The ring plate connection component includes: Flange plates (18) are connected and arranged on the end sides of the upper segmented ring plate (16) and the corresponding lower segmented ring plate (17).

10. The concrete-filled steel tubular tower with a hollow sandwich according to claim 9, wherein, The ring plate connection component further includes: Connecting bolts penetrate and connect two adjacent flange plates (18) and are adapted to connect the two adjacent flange plates (18).

Images