CN220167299U

CN220167299U - Prestressed reinforcement structure

Info

Publication number: CN220167299U
Application number: CN202321633252.9U
Authority: CN
Inventors: 刘远辉; 姚智源; 张庆聪; 惠敏; 卢文亮
Original assignee: Guangdong Huakun Construction Group Co ltd
Current assignee: Guangdong Huakun Construction Group Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-12-12
Anticipated expiration: 2033-06-26

Abstract

The utility model provides a prestress rib structure, which comprises a twisted wire bundle, a slow bonding material layer and a sheath which are sequentially arranged from inside to outside; the outer wall of the sheath is provided with a plurality of snap ring groups which are uniformly arranged at intervals along the length direction of the sheath, and a space is reserved between two adjacent snap ring groups, so that the outer wall of the sheath forms a smooth section; the clamping ring group comprises a plurality of convex rings which are uniformly arranged at intervals; novel structure, it both can strengthen holistic structural strength, also can strengthen the joint strength with outside concrete, still can provide the position of conveniently tailorring peeling, facilitate the use.

Description

Prestressed reinforcement structure

Technical Field

The utility model relates to the field of prestressed tendons, in particular to a prestressed tendon structure.

Background

The prestressed tendons can bring better tensile resistance or compressive resistance when in use, and are toughen in the construction industry; in the normal construction process, a prestressed reinforcement needs to be penetrated in a reinforcement cage, and then concrete is poured into the reinforcement cage; the prestressed tendons mainly comprise steel wire bundles, a slow bonding layer and a sheath, can be prefabricated in advance, and are convenient for subsequent transportation and use;

however, the outer wall of the sheath of the prestressed tendon is mostly smooth, and although the production, cutting and peeling can be facilitated, the grip strength is small, and the subsequent connection strength is possibly deficient; and the overall structural strength of the prestressed tendons is poor;

the outer side of part of the sheath is provided with lines or raised structures which almost cover the whole sheath, although the structure can increase the contact area with concrete, so as to realize the effect of reinforcing connection; however, the structure is inconvenient to cut and peel and inconvenient to splice for subsequent use, so that the structure needs to be improved.

Disclosure of Invention

In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a prestressed reinforcement structure which is novel in structure, can enhance the integral structural strength, can also enhance the connection strength with external concrete, and can also provide a part which is convenient to cut and peel and is convenient to use.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a prestress rib structure, which comprises a twisted wire bundle, a slow bonding material layer and a sheath which are sequentially arranged from inside to outside; the outer wall of the sheath is provided with a plurality of snap ring groups which are uniformly arranged at intervals along the length direction of the sheath, and a space is reserved between two adjacent snap ring groups, so that the outer wall of the sheath forms a smooth section; one snap ring set includes a plurality of evenly spaced projecting rings.

In the preferred technical scheme of the utility model, the convex ring is divided into a first convex ring and a second convex ring, and the first convex ring and the second convex ring are arranged at staggered intervals; the outer diameters of the first convex ring and the second convex ring are consistent, and the wall surface of the second convex ring, which is far away from the axis of the sheath, is in an outer convex arc shape.

In the preferred embodiment of the utility model, the length between the two ends of one snap ring set is greater than the length of the smooth segment.

In the preferred technical scheme of the utility model, the twisted wire bundle comprises a main bundle body and an auxiliary bundle body, wherein the auxiliary bundle body is wound on the outer side of the main bundle body;

the main bundle body is formed by winding and twisting a plurality of first steel twisted wires; the auxiliary bundle body comprises a plurality of second steel twisted wires, the diameter of each second steel twisted wire is smaller than that of each first steel twisted wire, and the second steel twisted wires are twisted at the concave positions of two adjacent first steel twisted wires on the outermost ring.

In the preferred technical scheme of the utility model, the outside of the twisted wire bundle is wound with the binding belt, and the binding belt is spirally wound along the length direction of the twisted wire bundle, so that the contact part of the twisted wire bundle and the slow bonding material layer is left.

The beneficial effects of the utility model are as follows:

the utility model provides a prestress rib structure, which is novel in structure and comprises a twisted wire bundle, a slow bonding material layer and a sheath which are sequentially arranged from inside to outside; the outer wall of the sheath is provided with a plurality of snap ring groups which are uniformly arranged at intervals along the length direction of the sheath, and a space is reserved between two adjacent snap ring groups, so that the outer wall of the sheath forms a smooth section; the arrangement of the plurality of snap ring groups can strengthen the whole structure of the sheath, which means that the whole structure of the prestressed tendon can be strengthened; the smooth section is arranged, and particularly, in the actual use process, the end part of the prestressed tendon is cut in the smooth section area as much as possible, so that a part convenient for cutting and peeling can be provided, and the connection and the matching are also convenient through an anchor device, thereby being convenient for operation and use;

wherein, a snap ring group includes the bulge loop that a plurality of even intervals set up, can enlarge the area of contact of sheath and outside concrete, also can utilize the interval of bulge loop spare as the position that holds the concrete to can effectively strengthen the joint strength with outside concrete, and then strengthen the overall effect of prestressing tendons.

Drawings

FIG. 1 is a cross-sectional view of a tendon structure provided in an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a sheath according to an embodiment of the present utility model.

In the figure:

100. twisting the silk bundles; 110. a first steel strand; 120. a second steel strand; 200. a slow-bonding material layer; 300. a sheath; 310. a snap ring set; 311. a first collar; 312. a second convex ring; 320. a smooth section; 400. a binding belt.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, in the embodiment of the present utility model, a tendon structure is disclosed, which includes a twisted wire bundle 100, a slow-bonding material layer 200, and a sheath 300 sequentially disposed from inside to outside; the outer wall of the sheath 300 is provided with a plurality of snap ring groups 310, the plurality of snap ring groups 310 are uniformly arranged at intervals along the length direction of the sheath 300, and a space is reserved between two adjacent snap ring groups 310, so that the outer wall of the sheath forms a smooth section 320; one snap ring set includes a plurality of evenly spaced projecting rings.

The prestress rib structure is novel in structure and comprises a twisted wire bundle, a slow bonding material layer and a sheath which are sequentially arranged from inside to outside; the outer wall of the sheath is provided with a plurality of snap ring groups which are uniformly arranged at intervals along the length direction of the sheath, and a space is reserved between two adjacent snap ring groups, so that the outer wall of the sheath forms a smooth section; the arrangement of the plurality of snap ring groups can strengthen the whole structure of the sheath, which means that the whole structure of the prestressed tendon can be strengthened; the smooth section is arranged, and particularly, in the actual use process, the end part of the prestressed tendon is cut in the smooth section area as much as possible, so that a part convenient for cutting and peeling can be provided, and the connection and the matching are also convenient through an anchor device, thereby being convenient for operation and use;

Furthermore, the slow-bonding material layer is made of acrylic acid or epoxy resin doped with retarder, adopts common materials in prestressed tendons, can be directly purchased and used in the market, and the specific use method is not repeated.

Further, the convex ring is divided into a first convex ring 311 and a second convex ring 312, and the first convex ring 311 and the second convex ring 312 are arranged at staggered intervals; the outer diameters of the first convex ring and the second convex ring are consistent, and the wall surface of the second convex ring 312 far away from the axis of the sheath 300 is in an outer convex arc shape; the outer wall of the first convex ring is of a non-arc structure, and can be better clamped with concrete, so that the connecting effect is enhanced; the outer wall of the second convex ring is in an outer convex arc shape, so that the flow and embedding of concrete can be facilitated, and the concrete can better enter the area between the first convex ring and the second convex ring, thereby realizing effective connection.

Further, the sheath, the first convex ring and the second convex ring are of an integrated structure, and the sheath is made of high-strength polyethylene or polypropylene, so that the integral structural strength of the sheath can be ensured, and the processing and the production are convenient; the materials are common materials in the market, can be purchased and used directly, and specific manufacturing methods are not repeated.

Further, the length between the two ends of the snap ring set 310 is greater than the length of the smooth section 320, and the length of the smooth section is 15 cm-30 cm as the peeling length is not required, so that the cutting requirement can be met, the snap ring set can be ensured to be provided with enough setting length, the snap ring set can be effectively contacted and embedded with the outside, and sufficient connection strength is provided.

Further, the twisted wire bundle 100 includes a main bundle body and an auxiliary bundle body wound around the outside of the main bundle body; the main bundle body is formed by winding and twisting a plurality of first steel twisted wires 110; the auxiliary bundle body comprises a plurality of second steel twisted wires 120, the diameter of each second steel twisted wire is smaller than that of each first steel twisted wire, and the second steel twisted wires are twisted at the concave parts of two adjacent first steel twisted wires at the outermost ring; the structural design can effectively ensure the structural strength of the self structure of the twisted silk bundle and can effectively prevent the loose.

Further, the binding band 400 is wound around the outside of the twisted wire bundle 100, and the binding band is spirally wound along the length direction of the twisted wire bundle, so that the contact part between the twisted wire bundle and the slow bonding material layer is left, and the twisted wire bundle can be effectively bound by adopting the binding band, so that the binding band can be particularly convenient for maintaining the required close fit state in the processing and production processes, and can be prevented from loosening and scattering.

Further, the binding belt is of a flat rope belt structure and is made of PP plastic or nylon plastic, so that the binding belt is common in the market and can be purchased and used directly.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, but rather, embodiments falling within the scope of the appended claims are intended to be embraced by the utility model.

Claims

1. A prestress rib structure comprises a twisted wire bundle, a slow bonding material layer and a sheath which are sequentially arranged from inside to outside; the method is characterized in that:

the outer wall of the sheath is provided with a plurality of snap ring groups which are uniformly arranged at intervals along the length direction of the sheath, and a space is reserved between two adjacent snap ring groups, so that the outer wall of the sheath forms a smooth section;

one snap ring set includes a plurality of evenly spaced projecting rings.

2. A tendon structure according to claim 1, characterized in that:

the convex rings are divided into a first convex ring and a second convex ring, and the first convex ring and the second convex ring are arranged at staggered intervals;

the outer diameters of the first convex ring and the second convex ring are consistent, and the wall surface of the second convex ring, which is far away from the axis of the sheath, is in an outer convex arc shape.

3. A tendon structure according to claim 1, characterized in that:

the length between the two ends of one snap ring group is longer than the length of the smooth section.

4. A tendon structure according to claim 1, characterized in that:

the twisted wire bundle comprises a main bundle body and an auxiliary bundle body, and the auxiliary bundle body is wound on the outer side of the main bundle body;

the main bundle body is formed by winding and twisting a plurality of first steel twisted wires;

the auxiliary bundle body comprises a plurality of second steel twisted wires, the diameter of each second steel twisted wire is smaller than that of each first steel twisted wire, and the second steel twisted wires are twisted at the concave positions of two adjacent first steel twisted wires on the outermost ring.

5. A tendon structure as claimed in claim 4, wherein:

the outside winding of hank silk bundle is equipped with the bundling belt, and the bundling belt is spiral winding along the length direction of hank silk bundle, leaves the position that hank silk bundle and slow bonding material layer contacted.