Reinforcing and repairing structure for offshore engineering cracked beam
By setting notches on cracked beams on offshore engineering and inserting reinforcement fabrics, the corrosion problem of steel bars caused by chloride ion erosion is solved, the service life is extended, the maintenance cost is reduced, and the bending and shear resistance is enhanced.
Patent Information
- Application Number
- CN202422108802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In the marine environment, cracked beams of offshore engineering have high corrosion speed due to chloride ion erosion, reduced structural bearing capacity, and safety risks, and need to be reinforced and repaired.
A notch is provided on the cracked beam body, and the end of the reinforced fabric layer is arranged in the notch to wrap the cracked beam. By connecting the reinforced fabric layer to the cracked beam body, bending and shear resistance are improved, and a basalt fiber cloth layer is used for reinforcement.
It improves the service life of cracked beams, reduces maintenance costs, enhances the bending and shear resistance of the structure, and ensures safety.
Smart Images
Figure CN223163784U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of beam repair, and specifically relates to a reinforcement and repair structure for cracked beams in marine engineering. Background Art
[0002] The beam structure is the main load-bearing component of the main structure of the project. Once cracks occur and are simultaneously eroded by chloride ions in the marine environment, the corrosion rate of the internal steel bars increases rapidly, the structural bearing capacity is greatly reduced, and there are safety risks, so reinforcement and repair measures need to be taken.
[0003] Therefore, there is an urgent need to propose a reinforcement and repair structure for cracked beams in marine engineering. Utility Model Content
[0004] Aiming at the shortcomings or deficiencies of the above-mentioned prior art, the technical problem to be solved by this application is to provide a reinforcement and repair structure for cracked beams in marine engineering.
[0005] To solve the above technical problem, this application is achieved through the following technical solutions:
[0006] This application proposes a reinforcement and repair structure for cracked beams in marine engineering, including at least: a cracked beam body and multiple layers of reinforcement cloth layers, and the multiple layers of reinforcement cloth layers are arranged outside the cracked beam body; at least two notches are provided on the cracked beam body, the two notches are arranged opposite to each other, and the ends of the reinforcement cloth layer are arranged in the notches.
[0007] Optionally, for the above-mentioned reinforcement and repair structure for cracked beams in marine engineering, the cross-section of the cracked beam body is a T-shaped structure.
[0008] Optionally, for the above-mentioned reinforcement and repair structure for cracked beams in marine engineering, a first chamfer structure and a second chamfer structure are provided on the vertical structure of the cracked beam body.
[0009] Optionally, for the above-mentioned reinforcement and repair structure for cracked beams in marine engineering, the first chamfer structure is 2 cm to 5 cm away from the transverse structure of the cracked beam body.
[0010] Optionally, for the above-mentioned reinforcement and repair structure for cracked beams in marine engineering, the radius of curvature of the first chamfer structure and the second chamfer structure is 2 cm to 3 cm.
[0011] Optionally, for the above-mentioned reinforcement and repair structure for cracked beams in marine engineering, the depth of the notch is 4 cm to 6 cm; and / or the width of the notch is 2 cm to 3 cm.
[0012] Optionally, for the reinforcement and repair structure of the cracked beam in the above-mentioned marine engineering, it further includes: a first connection layer structure disposed between the notch and the reinforcement cloth layer; and / or, it further includes: a second connection layer structure disposed between the reinforcement cloth layer and the cracked beam body.
[0013] Optionally, for the reinforcement and repair structure of the cracked beam in the above-mentioned marine engineering, the first connection layer structure includes: sealant.
[0014] Optionally, for the reinforcement and repair structure of the cracked beam in the above-mentioned marine engineering, the second connection layer structure includes: adhesive.
[0015] Optionally, for the reinforcement and repair structure of the cracked beam in the above-mentioned marine engineering, the reinforcement cloth layer is made of basalt fiber.
[0016] Compared with the prior art, the present application has the following technical effects:
[0017] In the present application, by providing a notch on the cracked beam body and disposing the end of the reinforcement cloth layer in the notch, the cracked beam body is wrapped, so that the reinforcement cloth layer is connected to the cracked beam body, and they work together to enhance the bending resistance and shear resistance of the cracked beam body, repair and reinforce the cracked beam body, extend the service life of the cracked beam body, and reduce the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:
[0019] Figure 1 : Cross-sectional schematic diagram of an embodiment of the present application;
[0020] Figure 2 : Side view of an embodiment of the present application;
[0021] Figure 3 : Structural schematic diagram of the connection between the notch and the reinforcement cloth layer in an embodiment of the present application;
[0022] In the figure: notch 1, first chamfer structure 2, reinforcement cloth layer 3, cracked beam body 4, transverse structure 5, vertical structure 6, second chamfer structure 7, first connection layer structure 8, second connection layer structure 9. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0024] In one embodiment of the present application, a reinforcement and repair structure for a cracked beam in a marine project includes at least: a cracked beam body 4 and multiple layers of reinforcement cloth layers 3, and the multiple layers of the reinforcement cloth layers 3 are arranged outside the cracked beam body 4; at least two notches 1 are provided on the cracked beam body 4, and the two notches 1 are arranged oppositely, and the ends of the reinforcement cloth layer 3 are arranged in the notches 1.
[0025] In this embodiment, by providing the notches 1 on the cracked beam body 4 and arranging the ends of the reinforcement cloth layer 3 in the notches 1, the cracked beam body 4 can be wrapped, so that the reinforcement cloth layer 3 is connected to the cracked beam body 4, and they are stressed together, improving the bending resistance and shear resistance of the cracked beam body 4, repairing and strengthening the cracked beam body 4, extending the service life of the cracked beam body 4, and reducing the maintenance cost.
[0026] Specifically, the cross-section of the cracked beam body 4 is a T-shaped structure.
[0027] Specifically, a first chamfer structure 2 and a second chamfer structure 7 are provided on the vertical structure 6 of the cracked beam body 4. By providing the first chamfer structure 2 and the second chamfer structure 7, when the reinforcement cloth layer 3 is fixedly arranged in the notch 1, the bending angle is smaller, so that the reinforcement cloth layer 3 can fit the wall surface of the cracked beam body 4 to ensure the reinforcement effect. In this embodiment, the first chamfer structure 2 and the second chamfer structure 7 are formed by grinding with a angle grinder.
[0028] Specifically, the first chamfer structure 2 is 2 cm to 5 cm away from the transverse structure 5 of the cracked beam body 4. By arranging the first chamfer structure 2 within this range and setting the notch 1 on the first chamfer structure 2, the operation of setting the first chamfer structure 2 and the notch 1 is convenient, and at the same time, it can ensure that the reinforcement cloth layer 3 covers a sufficient area of the cracked beam body 4 to ensure good reinforcement effect.
[0029] Optionally, the curvature radii of the first chamfer structure 2 and the second chamfer structure 7 are 2 cm to 3 cm. When the curvature radii of the first chamfer structure 2 and the second chamfer structure 7 are larger, the bending angle of the reinforcing fabric layer wound around the side end of the cracked beam body 4 is smaller, and the performance loss at the bending part is smaller, and the strength of the reinforcing fabric layer 3 can be more fully exerted. However, the curvature radii of the first chamfer structure 2 and the second chamfer structure 7 cannot be too large, otherwise, the cutting amount of the original concrete structure of the cracked beam body 4 is relatively large and the damage is significant. Preferably, the curvature radii of the first chamfer structure 2 and the second chamfer structure 7 are 2.5 cm to 3 cm.
[0030] Optionally, the depth of the notch 1 is 4 cm to 6 cm, so that the reinforcing fabric layer 3 can be arranged in the notch 1 without coming out. In this embodiment, the depth of the notch 1 is 5 cm.
[0031] Optionally, the width of the notch 1 is 2 cm to 3 cm, so that the reinforcing fabric layer 3 can be inserted into the notch 1. In this embodiment, the width of the notch 1 is 2 cm. Specifically, the depth of the notch 1 is designed according to the thickness of the steel bar protection layer of the cracked beam body 4, and the depth of the notch 1 does not exceed the thickness of the steel bar protection layer of the cracked beam body 4. Because the depth and width of the notch 1 are limited, the curvature radius of the notch 1 is set to 1 cm to 2 cm.
[0032] Optionally, the notch 1 is provided with the third chamfer structure, and the curvature radius of the third chamfer structure is 1 cm to 2 cm, so as to be convenient for connecting with the reinforcing fabric layer 3.
[0033] Optionally, the reinforcing fabric layer 3 is made of basalt fiber.
[0034] The price of traditional carbon fiber cloth is expensive, and the engineering economic benefit is not obvious. The price of basalt fiber cloth is 1 / 3 of that of carbon fiber cloth, and its mechanical properties can reach more than 60% of that of carbon fiber, and it can also achieve the characteristics of structural reinforcement and repair. Therefore, the reinforcing fabric layer 3 in this embodiment is made of basalt fiber.
[0035] Optionally, the number of layers of the reinforcing fabric layer 3 is 2 to 4 layers. When the number of layers of the reinforcing fabric layer 3 is more, the reinforcement performance is improved, but not linearly. When the reinforcing fabric layer 3 reaches 4 layers, continuing to set the reinforcing fabric layer 3 will not have a significant improvement in performance.
[0036] Specifically, in this embodiment, one end of the reinforcing fabric layer 3 is inserted into the notch 1 on one side of the vertical structure 6 of the cracked beam body 4, and the reinforcing fabric layer 3 is wound around the bottom of the cracked beam body 4 and then to the notch 1 on the other side of the vertical structure 6 of the cracked beam body 4, thereby realizing the wrapping of the cracked beam body 4.
[0037] Specifically, the reinforcement and repair structure of the cracked beam for offshore engineering further includes: a first connection layer structure 8, which is disposed between the notch 1 and the reinforcement cloth layer to seal the notch 1 and form a stable connection between the reinforcement cloth layer and the cracked beam body 4.
[0038] Specifically, the reinforcement and repair structure of the cracked beam for offshore engineering further includes: a second connection layer structure 9, which is disposed between the reinforcement cloth layer and the cracked beam body 4 to stably connect the reinforcement cloth layer 3 and the cracked beam body 4.
[0039] Optionally, the first connection layer structure 8 includes: a sealing adhesive, such as epoxy sealing adhesive.
[0040] Optionally, the second connection layer structure 9 includes: a bonding adhesive, such as polyurethane adhesive.
[0041] In this embodiment, the bonding adhesive is epoxy resin. However, for the bonding of basalt fiber cloth, in most engineering cases, only resin glue is used for bonding. Once the resin glue fails, the basalt fiber cloth and the cracked beam body 4 will show partial peeling phenomenon and cannot bear the combined stress effect.
[0042] In the description of the present application, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0043] In the present application, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0044] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, 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. Therefore, it should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0045] The above embodiments are only used to illustrate the technical solutions of this application rather than to limit them. The technical solutions of this application have been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the technical solutions of this application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of this application, and all of them should be covered within the scope of the claims of this application.
Claims
1. A reinforcement and repair structure for a cracked beam in marine engineering, characterized in that, At least including: A cracked beam body and multiple layers of reinforcement cloth layers, and the multiple reinforcement cloth layers are arranged on the outer side of the cracked beam body; at least two notches are provided on the cracked beam body, the two notches are arranged oppositely, and the ends of the reinforcement cloth layers are arranged in the notches.
2. The reinforcement and repair structure of the cracked beam for offshore engineering according to claim 1, characterized in that The cross-section of the cracked beam body is a T-shaped structure.
3. The reinforcement and repair structure of the cracked beam for offshore engineering according to claim 2, characterized in that, A first chamfer structure and a second chamfer structure are provided on the vertical structure of the cracked beam body.
4. The reinforcement and repair structure of the cracked beam for marine engineering according to claim 3, characterized in that, The first chamfer structure is 2 cm to 5 cm away from the transverse structure of the cracked beam body.
5. The reinforcement and repair structure of the cracked beam for marine engineering according to claim 3 or 4, characterized in that, The radius of curvature of the first chamfer structure and the second chamfer structure is 2 cm to 3 cm.
6. The reinforcement and repair structure for the cracked beam of the marine project according to any one of claims 1 to 4, characterized in that, The depth of the notch is 4 cm to 6 cm; and / or, the width of the notch is 2 cm to 3 cm.
7. The reinforcement and repair structure of the cracked beam for offshore engineering according to any one of claims 1 to 4, characterized in that It further includes: a first connection layer structure, and the first connection layer structure is arranged between the notch and the reinforcement cloth layer; and / or, it further includes: a second connection layer structure, and the second connection layer structure is arranged between the reinforcement cloth layer and the cracked beam body.
8. The reinforcement and repair structure of the cracked beam for marine engineering according to claim 7, characterized in that, The first connection layer structure includes: sealing glue.
9. The reinforcement and repair structure of the cracked beam for offshore engineering according to claim 7, characterized in that The second connection layer structure includes: adhesive glue.
10. The reinforcement and repair structure of the cracked beam for marine engineering according to any one of claims 1 to 4, characterized in that, The reinforcement cloth layer is made of basalt fiber.