Pipe piece connecting structure of reinforced concrete tower drum prefabricated part

Abstract

The utility model relates to the technical field of civil engineering, in particular to a pipe piece connecting structure of a reinforced concrete tower drum prefabricated part. The upper end of the duct piece body is provided with a groove, and the lower end is provided with a protrusion matched with the groove. A grouting hole is formed in the duct piece body. According to the pipe piece connecting structure of the reinforced concrete tower drum prefabricated part, the pipe piece bodies are assembled into the pipe bodies, the grooves and the protrusions on the upper layer and the lower layer are matched and connected with the two pipe bodies, then grouting is conducted through the grouting holes, and the requirements for low pipe piece transportation and hoisting capacity are greatly lowered; the grooves and the protrusions are connected in a matched mode, and the problems that the strength of duct piece bonding glue is insufficient, and the structural safety is affected due to the fact that bonding glue filling at transverse joints is not compact are solved. The upper-layer pipe piece and the lower-layer pipe piece are connected through the gold wire screw rod, the phenomenon that adhesive filling is not compact is avoided, the phenomenon that stress is concentrated at a transverse joint is avoided, adhesive cracks are avoided, and the problem of water seepage of the pipe pieces at the transverse joint connecting position is solved; the duct pieces are always in a non-disengagement state in the unit operation period, and safe operation of the structure is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to civil engineering technical field, concretely relates to a kind of steel and mix tower cylinder prefabricated component pipe piece connecting structure. BACKGROUND

[0002] With the transformation of global energy structure and the rapid development of renewable energy, wind power has become one of the important clean energy. In wind power projects, wind tower cylinder is an important supporting structure of wind turbine generator, and its design and construction quality is directly related to the operation safety and economy of wind turbine generator.

[0003] The concrete tower cylinder is assembled into segments by external prestressing and epoxy material in the horizontal direction, and the segments are assembled into a whole along the vertical direction by bolt connection and epoxy material cementation. The joint of the pipe piece is a cemented flat joint, which is a weak part of the structure, and is not conducive to load transmission and structural integrity. In addition, the epoxy material ages quickly in harsh weather, and how to ensure its durability is also an important problem. Therefore, high-efficiency connection technology suitable for rapid construction of wind tower and having good structural integrity is urgently needed to be developed.

[0004] Therefore, it is necessary to design a steel and mix tower cylinder prefabricated component pipe piece connecting structure. SUMMARY

[0005] In view of the defects in the prior art, the utility model provides a steel and mix tower cylinder prefabricated component pipe piece connecting structure.

[0006] The technical scheme adopted by the utility model is: a steel and mix tower cylinder prefabricated component pipe piece connecting structure, which comprises a pipe piece body, a groove is provided at the upper end of the pipe piece body, and a protrusion matched with the groove is provided at the lower end; a grouting hole is provided on the pipe piece body.

[0007] To better realize the utility model, a first through hole communicating with the inside of the pipe piece body is provided on the groove; a second through hole communicating with the inside of the pipe piece body is provided on the protrusion; and a gold wire screw rod is further included, the upper end of the gold wire screw rod is inserted into the second through hole of the upper layer pipe piece body, and the lower end is inserted into the first through hole of the lower layer pipe piece body.

[0008] To better realize the utility model, the first through hole is a plurality of holes, and is uniformly and intervally arranged along the groove.

[0009] To better realize the utility model, a reinforcing part is arranged at the edge of the groove and the edge of the protrusion.

[0010] To better realize the utility model, a steel mesh is arranged in the pipe piece body.

[0011] The grouting hole is multiple, and is close to the top of the segment body.

[0012] The height of the groove and the protrusion of the segment body is consistent, and is 15cm-40cm.

[0013] The segment body is made of concrete.

[0014] The steel-concrete tower cylinder prefabricated component segment connecting structure of the utility model, through cooperation of the segment body, the groove, the protrusion and the grouting hole, in construction, the segment body is assembled into a pipe body first, the groove and the protrusion of the upper and lower two layers are matched, two pipe bodies are connected, then grouting is carried out from the grouting hole, the requirement of low segment transportation and hoisting capacity is greatly reduced; the groove and the protrusion are matched and connected, the problem of insufficient adhesive strength of segment bonding, and the problem of adhesive filling not being dense enough at the transverse joint affecting structural safety are solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below.

[0016] Fig. 1 It is a direction structure schematic view of the steel-concrete tower cylinder prefabricated component segment connecting structure of the utility model;

[0017] Fig. 2 It is another direction structure schematic view of the steel-concrete tower cylinder prefabricated component segment connecting structure of the utility model;

[0018] Fig. 3 It is a structure schematic view when the steel-concrete tower cylinder prefabricated component segment connecting structure of the utility model is assembled;

[0019] In the drawings, 1 is a segment body, 2 is a groove, 3 is a protrusion, 4 is a grouting hole, 5 is a first through hole, 6 is a gold wire screw, 7 is a second through hole, and 8 is a reinforcing part. EMBODIMENTS

[0020] The technical solutions of the utility model will be described below in detail in connection with the drawings. The following examples are only used to make the technical solutions of the utility model clearer, and therefore only serve as examples, but cannot limit the protection scope of the utility model.

[0021] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in connection with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The components of the embodiments of the present disclosure described and shown in the drawings can be arranged and designed in various different configurations.

[0022] In the description of the present disclosure, it should be noted that the orientation or positional relationship indicated by the terms "upper", "inner" and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present disclosure is usually placed, and is only for the convenience of describing the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present disclosure, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the skilled person in the field to which the utility model belongs.

[0025] Embodiment:

[0026] As Figs. 1 to 3As shown in the steel tower of the utility model of the prefabricated component pipe piece connecting structure, including pipe piece body 1, the upper end of the pipe piece body 1 is provided with recess 2, and the lower end is provided with protrusion 3 matched with recess 2;The pipe piece body 1 is provided with grouting hole 4.The steel tower of the utility model of the prefabricated component pipe piece connecting structure, through the cooperation of pipe piece body 1, recess 2, protrusion 3 and grouting hole 4, in construction, first, the pipe piece body is assembled into a pipe body, the recess 2 and protrusion 3 of upper and lower two layers are matched, two pipe bodies are connected, then grouting is injected from grouting hole 4, which greatly reduces the low pipe piece transportation and lifting capacity requirement;The recess 2 and protrusion 3 are matched and connected, the problem of insufficient adhesive strength of pipe piece, and the problem of insufficient adhesive filling of transverse joint and affecting structural safety are solved.

[0027] As a preferred embodiment, a first through hole 5 communicating with the inside of the pipe piece body 1 is arranged on the recess 2;A second through hole 7 communicating with the inside of the pipe piece body 1 is arranged on the protrusion 3;Further comprising gold wire screw rod 6, the upper end of the gold wire screw rod 6 is inserted into the second through hole of the upper pipe piece body 1, and the lower end is inserted into the first through hole 5 of the lower pipe piece body 1.Use gold wire screw rod 6 to connect the upper and lower two layers of pipe pieces, avoid the phenomenon of adhesive filling not dense, avoid stress concentration phenomenon at transverse joint, solve the adhesive crack, solve the pipe piece water seepage problem at transverse joint position;At the same time, the pipe piece is always in the state of not being separated during the operation of the unit, which ensures the safe operation of the structure.No adhesive connection, avoid high-altitude adhesive coating construction operation, convenient construction;Avoid the problem that the adhesive is sensitive to the environment, and the adhesive strength is difficult to meet the design requirement in low temperature environment, improve the construction quality.

[0028] As a preferred embodiment, the first through hole 5 is multiple, and is uniformly spaced along the recess 2.In this way, the corresponding second through hole 7 is also multiple, and the gold wire screw rod 6 is inserted into the first through hole 5 and the second through hole 7 at both ends, which greatly improves the stability of the structure.

[0029] As a preferred embodiment, a reinforcing part 8 is arranged on the edge of the recess 2 and the edge of the protrusion 3.The arrangement of the reinforcing part 8 greatly improves the structural strength of the upper and lower pipe piece connection, and improves the stability.

[0030] As a preferred embodiment, a reinforcing part 8 is arranged on the edge of the recess 2 and the edge of the protrusion 3.The arrangement of the reinforcing part 8 greatly improves the structural strength of the upper and lower pipe piece connection, and improves the stability.

[0031] As a preferred embodiment, the grouting hole 4 is multiple, and is close to the top of the pipe piece body 1.In this way, mud can be injected from multiple grouting holes 4 at the same time, which improves the construction efficiency, and the grouting hole 4 close to the top of the pipe piece body 1 can reduce the overflow of mud.

[0032] As a preferred embodiment, the groove 2 and the protrusion 3 of the segment body 1 have the same height of 15-40 cm.

[0033] As a preferred embodiment, the segment body 1 is made of concrete.

[0034] As a preferred embodiment, the groove 2 and the protrusion 3 are arranged at the upper and lower ends of the segment body 1 respectively, the height of the protrusion 3 and the groove 2 is 15-40 cm, the protrusion 3 of the upper segment is inserted into the groove 2 of the lower segment, the reinforcing area 7 is arranged at the upper and lower ends of the segment body 1, the wall thickness of the reinforcing area is increased by 5-25 cm, and the height of the reinforcing area is 10-40 cm; the segment body 1 is provided with a plurality of grouting holes 4, the pressure grouting is carried out through the grouting holes 4 after the segment is installed, and the compactness of the connecting position is ensured; a plurality of screw holes 5 are arranged at the upper and lower ends of the segment body 1, and the segment bodies 1 at the upper and lower ends are connected through gold wire screws 6 inserted into the screw holes, the length of the gold wire screws 6 is 20-80 cm, and the distance between the gold wire screws 6 is 30-80 cm.

[0035] The segment body 1 is connected through the gold wire screws 6, compared with the conventional segment connected through the adhesive, the segment body 1 avoids the phenomenon of adhesive filling not being compact, avoids the stress concentration phenomenon at the transverse joint, solves the problem of the influence of the adhesive crack on the safe operation of the structure, and solves the problem of water seepage at the transverse joint connecting position. The strength of the adhesive is difficult to meet the design requirement in the low-temperature environment, the problem of the environmental sensitivity of the adhesive is avoided, and the construction quality is improved.

[0036] The segment body 1 has high compressive strength after grouting, compared with the conventional high-strength concrete structure, the thickness of the segment is greatly reduced, the problem of the thick segment of the large megawatt unit tower on land is solved, and the difficulty of the segment transportation and hoisting construction is reduced.

[0037] In addition, the segment body 1 is connected through the gold wire screws 6, the structural strength is high, the segment body 1 is always in the state of not being separated during the operation of the unit, and the safe operation of the structure is ensured.

[0038] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the description of the utility model.

Claims

1. A precast steel-concrete tower segment connection structure, characterized in that: It comprises a pipe piece body (1), a recess (2) is arranged on the upper end of the pipe piece body (1), a protrusion (3) matched with the recess (2) is arranged on the lower end of the pipe piece body (1); a grouting hole (4) is arranged on the pipe piece body (1); A first through hole (5) communicated with the inside of the pipe piece body (1) is arranged on the recess (2); a second through hole (7) communicated with the inside of the pipe piece body (1) is arranged on the protrusion (3); a gold wire screw rod (6) is further arranged, the upper end of the gold wire screw rod (6) is inserted into the second through hole of the upper layer pipe piece body (1), and the lower end of the gold wire screw rod (6) is inserted into the first through hole (5) of the lower layer pipe piece body (1).

2. The segmental joint structure of the steel-concrete hybrid tower section precast member according to claim 1, characterized in that: The first through hole (5) is multiple, and is uniformly and spacedly arranged along the recess (2).

3. The segmental connection structure of the steel-concrete hybrid tower section according to claim 1, characterized in that: The edge of the recess (2) and the edge of the protrusion (3) are both provided with a reinforcing part (8).

4. The segmental connection of a precast concrete segmental tower tube according to claim 1, wherein: A steel mesh is arranged in the pipe piece body (1).

5. The precast segmental connected structure of a steel-concrete hybrid tower section according to claim 1, characterized in that: The grouting hole (4) is multiple, and is close to the top of the pipe piece body (1).

6. The precast segmental connected structure of a steel-concrete hybrid tower section according to claim 1, characterized in that: The height of the recess (2) and the protrusion (3) of the pipe piece body (1) is consistent, and is 15cm-40cm.

7. The precast segmental connected structure of a steel-concrete hybrid tower section according to claim 1, characterized in that: The pipe piece body (1) is made of concrete.

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