Concrete beam reinforcing structure

Abstract

The utility model discloses a concrete beam reinforcing structure which comprises a concrete beam, a first concrete column and a second concrete column, the concrete beam comprises a web plate and a wing plate connected to the web plate, one end of the second concrete column extends out of the concrete beam, and a plurality of layers of first carbon fiber cloth are pasted on the bottom face and the side face of the middle of the web plate. The first carbon fiber cloth is fixed through a U-shaped stirrup; a plurality of layers of second carbon fiber cloth are pasted on the wing plate and located above the first concrete column, and the second carbon fiber cloth is connected with the concrete beam through a steel plate; a plurality of layers of third carbon fiber cloth are adhered to the joint of the wing plate and the second concrete column; and the third carbon fiber cloth is connected with the concrete beam and the second concrete column through an L-shaped steel plate. According to the utility model, the tensile capacity of the concrete beam is effectively improved, the influence on the section of the concrete beam is small, obvious use space change is not caused, the construction operation is convenient, the cost is low, the stress is reasonable, and the bearing capacity of the concrete beam can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building reinforcing technical field, concretely is a concrete beam reinforcing structure. BACKGROUND

[0002] In the field of construction engineering, the concrete beam is the main structural component of the building, and the load of the floor is transmitted to the structural column or wall, and the bending moment is the main factor of the stress failure of the concrete beam. When the construction quality, environmental erosion and other factors cause the local strength of the concrete beam to not meet the design requirements, or the design changes require the concrete beam to greatly improve the bearing capacity.

[0003] In order to deal with these problems, the traditional reinforcing method often uses the methods of increasing the section, adding support, sticking steel, and sticking carbon fiber cloth. However, these methods have the disadvantages of affecting the use space, causing inconvenience, high requirements for the strength and flatness of the concrete member surface, complex construction process, high construction difficulty, and difficult to guarantee the construction quality. Therefore, we propose a concrete beam reinforcing structure. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a concrete beam reinforcing structure which is convenient to operate, low in cost, has little influence on the appearance of the building, reasonable in stress, and can greatly improve the bearing capacity of the concrete beam.

[0005] The technical scheme for solving the above problems of the utility model is:

[0006] A concrete beam reinforcing structure, comprising a concrete beam, a first concrete column and a second concrete column, the concrete beam comprising a web and a wing plate connected to the web, the second concrete column extending out of the concrete beam at one end, and a plurality of layers of first carbon fiber cloth being pasted to the bottom surface and side surface of the middle part of the web and the first carbon fiber cloth being fixed by U-shaped stirrups; a plurality of layers of second carbon fiber cloth being pasted to the wing plate above the first concrete column, and the second carbon fiber cloth being connected to the concrete beam by a steel plate;

[0007] A plurality of layers of third carbon fiber cloth are pasted to the intersection of the wing plate and the second concrete column, and the third carbon fiber cloth is connected to the concrete beam and the second concrete column by an L-shaped steel plate.

[0008] Further, the upper part of the first carbon fiber cloth is provided with a carbon fiber pressing strip.

[0009] Further, steel pads are respectively arranged on the steel plate and the L-shaped steel plate, the steel plate is fixed to the concrete beam by anchor bolts, and the L-shaped steel plate is fixed to the concrete beam and the second concrete column by anchor bolts.

[0010] Further, the number of layers of the first carbon fiber cloth, the second carbon fiber cloth and the third carbon fiber cloth is three.

[0011] Further, the first carbon fiber cloth is equal in width to the web, the width of the U-shaped stirrup is 80mm-150mm, the interval is 200mm-500mm, and the width of the carbon fiber pressing strip is 80mm-150mm.

[0012] Further, the horizontal length of the third carbon fiber cloth extends to 1 / 3 of the span of the concrete beam, and the height direction is 500mm-1000mm along the inner side of the second concrete column.

[0013] Further, the thickness of the steel plate and the L-shaped steel plate is 8mm-15mm.

[0014] Further, the diameter of the anchor bolt is 8mm-12mm, and the arrangement interval is 300mm-2000mm. Advantages

[0015] 1. The utility model discloses a first carbon fiber cloth is pasted to the bottom surface and the side surface of the middle part of the web, and the first carbon fiber cloth is fixed through the U-shaped stirrup, a second carbon fiber cloth is pasted on the wing plate above the first concrete column, and a third carbon fiber cloth is pasted at the joint of the wing plate and the second concrete column, which effectively improves the tensile capacity of the concrete beam, has little influence on the concrete beam section, does not cause obvious use space change, is convenient to operate, low in cost, reasonable in stress, and can greatly improve the bearing capacity of the concrete beam.

[0016] 2. The utility model discloses a first carbon fiber cloth is fixed through the U-shaped stirrup, a second carbon fiber cloth is connected with the concrete beam through the steel plate, and the steel plate is fixed on the concrete beam through the anchor bolt, a third carbon fiber cloth is connected with the concrete beam and the second concrete column through the L-shaped steel plate, and the L-shaped steel plate is fixed on the concrete beam and the second concrete column through the anchor bolt, which greatly increases the capacity of the concrete beam to bear the negative bending moment at this place, can significantly improve the beam-column joint strength, and enhances the effect of building reinforcement. DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the preferable embodiment of the utility model;

[0018] Figure 2 It is the elevation schematic drawing of the preferable embodiment of the utility model;

[0019] Figure 3 It is Figure 2 The partial close-up view of A;

[0020] Figure 4 It is Figure 2 The partial close-up view of B;

[0021] Figure 5 It is the right elevation sectional view of the preferable embodiment of the utility model and does not contain the concrete column;

[0022] In the figure: 1. Concrete beam; 2. First concrete column; 3. First carbon fiber cloth; 4. U-shaped stirrup; 5. Carbon fiber strip; 6. Second concrete column; 7. Second carbon fiber cloth; 8. Steel plate; 9. Anchor bolt; 10. Steel pad; 11. Third carbon fiber cloth; 12. L-shaped steel plate; 101. Web plate; 102. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0024] Examples, such as Figures 1 to 5 As shown, the structure includes a concrete beam 1, a first concrete column 2, and a second concrete column 6. The concrete beam 1 includes a web 101 and a flange 102 connected to the web. One end of the second concrete column 6 extends out of the concrete beam 1. Several layers of first carbon fiber cloth 3 are pasted on the bottom and side surfaces of the middle part of the web 101, and the first carbon fiber cloth 3 is fixed by U-shaped stirrups 4. Several layers of second carbon fiber cloth 7 are pasted on the flange 102 above the first concrete column 2, and the second carbon fiber cloth 7 is connected to the concrete beam 1 by a steel plate 8.

[0025] Several layers of third carbon fiber cloth 11 are pasted at the junction of the wing plate 102 and the second concrete column 6. The third carbon fiber cloth 11 is connected to the concrete beam 1 and the second concrete column 6 through the L-shaped steel plate 12.

[0026] Furthermore, a carbon fiber strip 5 is provided on the upper part of the first carbon fiber cloth 3. The carbon fiber strip 5 is mainly used to fix the first carbon fiber cloth 3 and prevent it from moving or falling off during use. At the same time, the carbon fiber strip 5 can also provide additional strength and stiffness to enhance the reinforcement effect.

[0027] Furthermore, steel pads 10 are provided on steel plate 8 and L-shaped steel plate 12 respectively. Steel plate 8 is fixed to concrete beam 1 by anchor bolts 9, and L-shaped steel plate 12 is fixed to concrete beam 1 and second concrete column 6 by anchor bolts 9. The anchor bolts 9 can make the carbon fiber cloth stably and firmly attached to concrete beam 1.

[0028] Furthermore, the first carbon fiber cloth 3, the second carbon fiber cloth 7, and the third carbon fiber cloth 11 are all bonded in three layers.

[0029] Furthermore, the first carbon fiber cloth 3 is the same width as the web plate 101, the width of the U-shaped stirrups 4 is 80mm~150mm, the spacing is 200mm~500mm, and the width of the carbon fiber strips 5 is 80mm~150mm.

[0030] Further, the horizontal length of the third carbon fiber cloth 11 extends to 1 / 3 span of the concrete beam 1, and the height direction is pasted along the inner side of the second concrete column 6 by 500mm-1000mm, which can enhance the structural strength and stability of the connection area of the concrete beam 1 and the second concrete column 6.

[0031] Further, the thickness of the steel plate 8 and the L-shaped steel plate 12 is 8mm-15mm.

[0032] Further, the diameter of the anchor bolt 9 is 8mm-12mm, and the arrangement interval is 300mm-2000mm.

[0033] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0034] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A reinforced concrete beam structure, comprising a concrete beam (1), a first concrete column (2), and a second concrete column (6), wherein the concrete beam (1) includes a web (101) and a flange (102) connected to the web, and one end of the second concrete column (6) extends out of the concrete beam (1), characterized in that, Several layers of first carbon fiber cloth (3) are pasted on the bottom and side surfaces of the middle part of the web plate (101), and the first carbon fiber cloth (3) is fixed by U-shaped stirrups (4); several layers of second carbon fiber cloth (7) are pasted on the wing plate (102) above the first concrete column (2), and the second carbon fiber cloth (7) is connected to the concrete beam (1) by steel plate (8). Several layers of third carbon fiber cloth (11) are pasted at the junction of the wing plate (102) and the second concrete column (6). The third carbon fiber cloth (11) is connected to the concrete beam (1) and the second concrete column (6) through the L-shaped steel plate (12).

2. The concrete beam reinforcement structure according to claim 1, characterized in that, The upper part of the first carbon fiber cloth (3) is provided with a carbon fiber pressure strip (5).

3. The concrete beam reinforcement structure according to claim 1, characterized in that, Steel pads (10) are provided on the steel plate (8) and the L-shaped steel plate (12). The steel plate (8) is fixed to the concrete beam (1) by anchor bolts (9), and the L-shaped steel plate (12) is fixed to the concrete beam (1) and the second concrete column (6) by anchor bolts (9).

4. The concrete beam reinforcement structure according to claim 1, characterized in that, The first carbon fiber cloth (3), the second carbon fiber cloth (7) and the third carbon fiber cloth (11) are all bonded with three layers.

5. A concrete beam reinforcement structure according to claim 1, characterized in that, The first carbon fiber cloth (3) is the same width as the web plate (101), the width of the U-shaped stirrup (4) is 80mm~150mm, the spacing is 200mm~500mm, and the width of the carbon fiber strip (5) is 80mm~150mm.

6. A concrete beam reinforcement structure according to claim 1, characterized in that, The horizontal length of the third carbon fiber cloth (11) extends to 1 / 3 of the span of the concrete beam (1), and the vertical direction is laid along the inner side of the second concrete column (6) for 500mm~1000mm.

7. A concrete beam reinforcement structure according to claim 1, characterized in that, The thickness of the steel plate (8) and the L-shaped steel plate (12) is 8mm~15mm.

8. A concrete beam reinforcement structure according to claim 3, characterized in that, The diameter of the anchor bolts (9) is 8mm~12mm, and the spacing between them is 300mm~2000mm.

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