High-durability anti-ultraviolet retard-bonded prestressed tendon
By adopting a double-encapsulated structure and alternately distributed permeable holes on the prestressed ribs, the limitations of the existing prestressed ribs in terms of UV resistance and slow bonding are solved, and the effect of high durability and stable slow bonding operation is achieved.
Patent Information
- Application Number
- CN202420534490.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing prestressed ribs have limitations in achieving slow bonding and UV resistance, and it is difficult to effectively improve durability.
Using a double wrap structure, the first and second sleeves contain rubber sleeves and permeability holes, respectively, allowing concrete to penetrate and achieve slow bonding operations through alternately distributed permeability holes, while using an external sleeve to prevent ultraviolet rays.
It effectively avoids direct irradiation of prestressed ribs by ultraviolet rays, improves durability, and achieves stable and slow bonding operation with concrete, improving the crack resistance and firmness of the overall structure.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prestressed tendons, in particular to a highly durable, UV-resistant, slow-bonding prestressed tendon. Background Art
[0002] Prestressed tendons are usually composed of single or bundled steel wires, steel strands or steel bars. The setting of prestressed tendons can effectively improve the crack resistance of concrete structures, thereby improving the structural integrity and firmness of the entire concrete structure.
[0003] The existing prestressed tendon structure is simple and has limitations in achieving slow bonding and anti-ultraviolet to improve durability. Utility Model Content
[0004] The utility model aims to provide a highly durable anti-ultraviolet slow-bonding prestressed tendon which can realize anti-ultraviolet and improve durability while realizing slow-bonding operation.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A highly durable, UV-resistant, slow-bonding prestressed tendon comprises a prestressed tendon body, the outside of the prestressed tendon body is sleeved with a first sleeve, the first sleeve comprises a first rubber sleeve, a plurality of first penetration holes are arranged on the outer surface of the first rubber sleeve, the outside of the first sleeve is wrapped with a second sleeve, the second sleeve comprises a second rubber sleeve, the second rubber sleeve is sleeved on the outside of the first rubber sleeve, a plurality of second penetration holes are arranged on the outer surface of the second rubber sleeve, and the first penetration holes and the second penetration holes are alternately distributed.
[0007] By adopting the above technical solution, the prestressed tendon body can be doubly wrapped, which can effectively prevent external ultraviolet rays from directly irradiating the prestressed tendon body. At the same time, the first penetration hole and the second penetration hole can also be used to allow concrete to penetrate into the interior of the first sleeve to achieve a slow bonding operation.
[0008] Furthermore, a plurality of groups of first convex strips are integrally connected to the outer surface of the first rubber sleeve, each group of the first convex strips are circularly distributed on the outer surface of the first rubber sleeve with uniform spacing, and the first convex strips are located between the first rubber sleeve and the second rubber sleeve.
[0009] By adopting the above technical solution, the first convex strip can be used to support the gap between the first rubber sleeve and the second rubber sleeve, thereby ensuring that the concrete can flow stably.
[0010] Furthermore, a plurality of groups of inner protrusions are integrally connected to the inner wall of the first rubber sleeve, and the plurality of groups of inner protrusions are evenly distributed along the axial direction of the first rubber sleeve.
[0011] By adopting the above technical solution, the inner convex block can be used to support the inside of the first rubber sleeve, ensuring that the concrete can be fully bonded to the prestressed tendon body.
[0012] Furthermore, each group of the inner protrusions is arranged in a circular array on the inner wall of the first rubber sleeve.
[0013] By adopting the above technical solution, the stability of the internal support of the first rubber sleeve is ensured.
[0014] Furthermore, the prestressed tendon body includes a first steel bar and a second steel bar.
[0015] By adopting the above technical solution, the strength of the entire prestressed tendon body is effectively guaranteed.
[0016] Furthermore, a plurality of the second steel bars are wound around the outside of the first steel bars.
[0017] By adopting the above technical solution, the structural stability of the prestressed tendon body is effectively guaranteed.
[0018] In summary, the beneficial technical effects of the utility model are:
[0019] The utility model can utilize the second sleeve to wrap the outside of the first sleeve to form an entire protective sleeve, and the protective sleeve can be sleeved and wrapped around the outside of the prestressed tendon body. At this time, the second sleeve and the first sleeve can be used to prevent external ultraviolet rays from directly irradiating the prestressed tendon body, thereby achieving the effects of anti-ultraviolet rays and improving durability. In addition, since a plurality of first penetration holes are arranged on the outer surface of the first rubber sleeve, and a plurality of second penetration holes are arranged on the outer surface of the second rubber sleeve, the first penetration holes and the second penetration holes are alternately distributed, and thus concrete can pass through the first penetration holes and the second penetration holes into the interior of the first rubber sleeve, so that the prestressed tendon body can achieve a slow bonding operation with the concrete. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0021] Figure 2 For this utility model Figure 1 Enlarged view of point A.
[0022] In the figure: 1. prestressed tendon body; 2. first steel bar; 3. second steel bar; 4. first casing; 5. first rubber sleeve; 6. first convex strip; 7. first penetration hole; 8. second casing; 9. second rubber sleeve; 10. second penetration hole; 11. inner convex block. DETAILED DESCRIPTION
[0023] The method of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0024] See attached Figure 1 , Attachment Figure 2 A highly durable, UV-resistant, slow-bonding prestressed tendon comprises a prestressed tendon body 1, the outer portion of the prestressed tendon body 1 is sleeved with a first sleeve 4, the first sleeve 4 comprises a first rubber sleeve 5, a plurality of first penetration holes 7 are arranged on the outer surface of the first rubber sleeve 5, a second sleeve 8 is wrapped around the outer portion of the first sleeve 4, the second sleeve 8 comprises a second rubber sleeve 9, the second rubber sleeve 9 is sleeved on the outer portion of the first rubber sleeve 5, a plurality of second penetration holes 10 are arranged on the outer surface of the second rubber sleeve 9, the first penetration holes 7 and the second penetration holes 10 are alternately distributed, a plurality of groups of first convex strips 6 are integrally connected to the outer surface of the first rubber sleeve 5, each group of first convex strips 6 are circularly distributed with uniform spacing on the outer surface of the first rubber sleeve 5, the first convex strips 6 are located between the first rubber sleeve 5 and the second rubber sleeve 9, a plurality of groups of inner protrusions 11 are integrally connected to the inner wall of the first rubber sleeve 5, and a plurality of The inner protrusions 11 of the group are evenly distributed along the axial spacing of the first rubber sleeve 5, and each group of inner protrusions 11 is arranged in a circular array on the inner wall of the first rubber sleeve 5, wherein the second sleeve 8 can be used to wrap the outside of the first sleeve 4 to form a whole protective sleeve, and the protective sleeve can be sleeved and wrapped on the outside of the prestressed tendon body 1. At this time, the second sleeve 8 and the first sleeve 4 can be used to prevent external ultraviolet rays from directly irradiating the prestressed tendon body 1, thereby achieving the effect of anti-ultraviolet rays and improving durability. In addition, since a plurality of first penetration holes 7 are provided on the outer surface of the first rubber sleeve 5, and a plurality of second penetration holes 10 are provided on the outer surface of the second rubber sleeve 9, the first penetration holes 7 and the second penetration holes 10 are alternately distributed, so that concrete can pass through the first penetration holes 7 and the second penetration holes 10 to enter the interior of the first rubber sleeve 5, so that the prestressed tendon body 1 can achieve a slow bonding operation with the concrete.
[0025] Reference Figure 1 The prestressed tendon body 1 includes a first steel bar 2 and a second steel bar 3, and a plurality of second steel bars 3 are wound around the outside of the first steel bar 2, wherein the structural strength of the entire prestressed tendon body 1 can be improved by spirally winding the second steel bars 3 around the outside of the first steel bar 2.
[0026] Working principle: When in use, the prestressed tendon is first installed at the designated position, and then concrete is poured. Since the first sleeve 4 is wrapped on the outside of the prestressed tendon body 1, and the second sleeve 8 is wrapped on the outside of the first sleeve 4, the first sleeve 4 and the second sleeve 8 can provide double protection for the prestressed tendon body 1, and can effectively prevent external ultraviolet rays from directly irradiating the prestressed tendon body 1, thereby effectively improving the durability of the entire prestressed tendon body 1. Since a plurality of first convex strips 6 are arranged between the first rubber sleeve 5 and the second rubber sleeve 9, a plurality of inner convex blocks 11 are arranged on the inner wall of the first rubber sleeve 5, and the first penetration holes 7 and the second penetration holes 10 are alternately distributed, the external concrete can first pass through the second penetration holes 10 to enter the interior of the second rubber sleeve 9, and then pass through the first penetration holes 7 to enter the interior of the first rubber sleeve 5, thereby realizing the slow bonding operation between the concrete and the prestressed tendon body 1.
[0027] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A highly durable UV-resistant slow-bonding prestressed tendon, comprising a prestressed tendon body (1), characterized in that: The outside of the prestressed tendon body (1) is sleeved with a first sleeve (4), the first sleeve (4) includes a first rubber sleeve (5), a plurality of first penetration holes (7) are arranged on the outer surface of the first rubber sleeve (5), the outside of the first sleeve (4) is wrapped with a second sleeve (8), the second sleeve (8) includes a second rubber sleeve (9), the second rubber sleeve (9) is sleeved on the outside of the first rubber sleeve (5), a plurality of second penetration holes (10) are arranged on the outer surface of the second rubber sleeve (9), and the first penetration holes (7) and the second penetration holes (10) are alternately distributed.
2. A highly durable UV-resistant slow-bonding prestressed tendon according to claim 1, characterized in that: A plurality of groups of first convex strips (6) are integrally connected to the outer surface of the first rubber sleeve (5), each group of the first convex strips (6) are circularly distributed on the outer surface of the first rubber sleeve (5) with uniform spacing, and the first convex strips (6) are located between the first rubber sleeve (5) and the second rubber sleeve (9).
3. The highly durable UV-resistant slow-bonding prestressed tendon according to claim 1, characterized in that: A plurality of groups of inner protrusions (11) are integrally connected to the inner wall of the first rubber sleeve (5), and the plurality of groups of inner protrusions (11) are evenly distributed along the axial spacing of the first rubber sleeve (5).
4. A highly durable UV-resistant slow-bonding prestressed tendon according to claim 3, characterized in that: Each group of inner protrusions (11) is arranged in a circular array on the inner wall of the first rubber sleeve (5).
5. The highly durable UV-resistant slow-bonding prestressed tendon according to claim 1, characterized in that: The prestressed tendon body (1) comprises a first steel bar (2) and a second steel bar (3).
6. A highly durable UV-resistant slow-bonding prestressed tendon according to claim 5, characterized in that: A plurality of the second steel bars (3) are wound around the outside of the first steel bars (2).