A lintel reinforcing structure

Abstract

The utility model relates to a kind of lintel reinforcing structure, in the structure column of being fixed to left and right sides by respectively passing through internal reinforcement at the both ends of lintel, form the case fixed and the poor stability of lintel under the condition, by at least two vertical connecting structures being provided with interval along the length direction of the lintel, the front and back sides of the structure beam are fixed in the vertical connecting structure upper end by several expansion bolts, it can make that construction is more convenient, and reduce the influence of vertical connecting structure and existing structure beam connection fixed on existing structure beam, and the front and back sides or bottom surface of the lintel are hung in the vertical connecting structure lower end, can provide stable vertical lifting force for lintel, reinforce for lintel, so that the vertical stress of lintel meets, so that there is no rework, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of lintel reinforcement technology, and in particular to a lintel reinforcement structure. Background Technology

[0002] Currently, in building construction projects, after the structural beams and columns are constructed, the dimensions of the doors and windows are smaller than those of the structural beams and columns. Therefore, secondary structures (lintels) are often used for secondary rebar installation and pouring. However, when the span of the structural beams and columns is large, and the dimensions of the doors and windows are not significantly different from the clear height and width of the structural beams and columns, the secondary structural lintels used are often long and flat beams. These long and flat beams are quite long, and both ends need to be reinforced with rebar to connect with the structural columns on both sides to form a foundation for load-bearing. However, the rebar installation requires considerable depth, and the beam height of the long and flat beams is relatively small, resulting in limited vertical construction space and making rebar installation difficult. Therefore, it is necessary to use secondary structures (lintels) for secondary rebar installation. Shallow rebar installation is used, but the rebar has poor stress resistance, resulting in weak connection strength between the long flat beam and the structural column, which leads to unstable stress on the lintel. Furthermore, the long flat beam cannot be vibrated during concrete pouring, resulting in numerous holes and honeycomb-like pits in the concrete, leading to poor overall stress performance. The long flat beam also has poor bending moment stress performance after pouring, making it prone to breakage and falling, posing a safety hazard. In addition, due to the poor bending moment stress performance of the long flat beam after pouring and the weak connection strength between the long flat beam and the structural column, gaps (cracks) are easily generated between it and the upper structural beam, resulting in a high rework rate and high rework cost for the lintel construction. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, such as poor bending moment stress performance after lintel casting, low connection strength between lintel and structural column, insufficient vertical stress of lintel, easy gap between lintel and upper structural beam, high rework rate, and high rework cost, and to provide a lintel reinforcement structure.

[0004] In a first aspect, the present invention provides a lintel reinforcement structure, including a lintel located between structural columns on the left and right sides, the lintel being disposed above the bottom surface of a structural beam, the two ends of the lintel being fixed to the structural columns on the left and right sides respectively by internal steel bars, and at least two vertical connecting structures spaced apart along the length of the lintel, the upper end of the vertical connecting structure being fixed to the front and rear sides of the structural beam by a plurality of expansion bolts, and the lower end of the vertical connecting structure suspending the front and rear sides or the bottom surface of the lintel.

[0005] The lintel reinforcement structure of this utility model features at least two vertical connecting structures spaced apart along the length of the lintel. The upper ends of the vertical connecting structures are fixed to the front and rear sides of the structural beam by several expansion bolts, which facilitates construction and reduces the impact of the connection between the vertical connecting structures and the existing structural beam on the existing beam. The lower ends of the vertical connecting structures suspend the front and rear sides or bottom of the lintel, providing a stable vertical lifting force for the lintel and reinforcing it. This ensures that the vertical stress of the lintel is met, eliminating the need for rework and reducing costs.

[0006] Preferably, the vertical connecting structure is a U-shaped steel plate with the opening facing upwards. The lintel and structural beam are adapted to be installed within the opening of the U-shaped steel plate. The U-shaped steel plate includes a bottom support plate and a first connecting steel plate connected to the front and rear sides of the bottom support plate. The bottom support plate supports the bottom surface of the lintel. The first connecting steel plate on the front side of the bottom support plate is installed on the front side of the lintel and structural beam, and its upper end is fixed to the front side of the structural beam by expansion bolts. The first connecting steel plate on the rear side of the bottom support plate is installed on the rear side of the lintel and structural beam, and its upper end is fixed to the rear side of the structural beam by expansion bolts.

[0007] The vertical connection structure is a U-shaped steel plate. The upper ends of the first connecting steel plates on both sides of the U-shaped steel plate are fixed to the front and rear sides of the structural beam by expansion bolts. The lower ends of the first connecting steel plates on both sides of the U-shaped steel plate are connected to the front and rear sides of the bottom support plate, so that the bottom surface of the lintel can be supported by the bottom support plate to strengthen the lintel and better increase the vertical force of the lintel.

[0008] Preferably, the bottom support plate is embedded in the groove of the protective layer on the bottom side of the lintel to prevent the bottom support plate from affecting the clearance of the lintel below.

[0009] Preferably, the thickness of the bottom support plate is 1cm-2cm, which ensures the lifting capacity of the lintel while reducing the impact on the clearance below the lintel.

[0010] Preferably, the width of the base plate and the first connecting steel plate is 20cm-30cm. The first connecting steel plate is fixed to the structural beam by three expansion bolts spaced apart in a row, which can make the connection stability between the first connecting steel plate and the structural beam higher.

[0011] Preferably, the bottom of the base plate is connected to the top of the window frame or door frame, which can provide more convenient fixing conditions for the top of the window frame or door frame and avoid damage to the lintel caused by fixing the top of the window frame or door frame to the lintel.

[0012] Preferably, the side of the first connecting steel plate is connected to the keel, which can be connected to other ceilings. The first connecting steel plate provides more convenient fixing conditions for the keel and avoids further damage to the lintel caused by fixing the keel to the lintel.

[0013] Preferably, the vertical connection structure is a second connecting steel plate disposed on the front and rear sides of the structural beam and the lintel. The upper end of the second connecting steel plate is fixed to the front or rear side of the structural beam by expansion bolts, and the lower end of the second connecting steel plate is correspondingly fixed to the front or rear side of the lintel by expansion bolts.

[0014] By reinforcing the connection between the lintel and the structural beam with second connecting steel plates installed on the front and rear sides of the structural beam and lintel, the stability of the lintel can be improved.

[0015] Preferably, two vertical connecting structures are provided at intervals along the length of the lintel, and the two vertical connecting structures are respectively located at two trisection points of the lintel, which strengthens and stabilizes the lintel.

[0016] Preferably, three vertical connecting structures are provided at intervals along the length of the lintel, and the three vertical connecting structures are respectively located at both ends and the middle of the lintel to reinforce and stabilize the lintel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a lintel reinforcement structure. By providing at least two vertical connecting structures at intervals along the length of the lintel, the upper end of each vertical connecting structure is fixed to the front and rear sides of the structural beam by a number of expansion bolts. This facilitates construction and reduces the impact of the connection between the vertical connecting structure and the existing structural beam on the existing structural beam. The lower end of each vertical connecting structure suspends the front and rear sides or bottom of the lintel, providing a stable vertical lifting force for the lintel and reinforcing it. This ensures that the vertical stress of the lintel is met, eliminating the need for rework and reducing costs. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a lintel reinforcement structure; Figure 2 for Figure 1 A front view diagram (the rear view diagram is the same); Figure 3 This is a schematic diagram showing the relationship between structural columns and structural beams; Figure 4 This is a schematic diagram showing the relationship between lintels, structural columns, and structural beams. Figures 5-7 This is a schematic diagram of the installation of the U-shaped steel plate; Figure 8 This is a front view schematic diagram of another type of lintel reinforcement structure (the rear view schematic diagram is the same). Figure 9 A schematic diagram of the structure for fixing the keel and window frame using U-shaped steel plates.

[0019] Markings in the diagram: 1. Structural column; 101. Gap; 2. Structural beam; 3. U-shaped steel plate; 31. Bottom support plate; 32. First connecting steel plate; 4. Second connecting steel plate; 5. Expansion bolt; 6. Lintel; 7. Steel pipe column; 8. Window frame; 9. Keel. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0021] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are set as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," "parallel," or "coaxial" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0023] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0024] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0025] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0026] Example 1 like Figure 1 As shown, a lintel reinforcement structure includes a lintel 6 located between left and right structural columns 1. The lintel 6 is positioned above and adjacent to the bottom surface of a structural beam 2. The fixed connection between the structural beam 2 and the left and right structural columns 1 is stable, forming an initial frame structure. Both ends of the lintel 6 are fixed to the left and right structural columns 1 by internal reinforcing bars (rebar anchoring). This internal reinforcing bar connection allows the lintel 6 to be connected to the left and right structural columns 1, but due to the limited load-bearing capacity of the rebar anchoring, the load-bearing capacity and stability of the lintel 6 are relatively poor. Furthermore, as... Figure 4 As shown, due to the poor load-bearing capacity of the lintel 6 and the structural strength issues of the lintel 6 after its casting, a gap 101 may exist between the lintel 6 and the structural beam 2 above it; or the lintel 6 is an existing structure, and after the lintel 6 is cast, the lintel 6 and the adjacent structural beam 2 above it form an integral whole, but due to the poor load-bearing capacity of the lintel 6, cracks may occur between the lintel 6 and the structural beam 2, which may lead to the lintel 6 needing to be reworked. In this embodiment, by reinforcing the lintel 6, the load-bearing capacity of the lintel is improved, so that rework is not required and costs are reduced.

[0027] In this embodiment, as Figures 1-2 As shown, at least two vertical connecting structures are provided at intervals along the length of the lintel 6. The upper end of the vertical connecting structure is fixed to the front and rear sides of the structural beam 2 by a number of expansion bolts 5. The lower end of the vertical connecting structure suspends the front and rear sides or bottom of the lintel 6, which can provide a stable vertical lifting force for the lintel 6, strengthen the lintel, and ensure that the vertical force of the lintel is satisfied.

[0028] In optional implementations, such as Figure 2 or Figure 8 As shown, three vertical connecting structures are provided at intervals along the length of the lintel 6. The three vertical connecting structures are located at both ends and the middle of the lintel 6, respectively, to reinforce and stabilize the lintel.

[0029] In an optional embodiment, two vertical connecting structures are provided at intervals along the length of the lintel 6. The two vertical connecting structures are located at two trisection points of the lintel 6, which strengthens and stabilizes the lintel.

[0030] In an optional embodiment, the lower end of the vertical connecting structure suspends the bottom surface of the lintel 6, such as... Figure 1 and Figure 2 As shown, the vertical connecting structure is a U-shaped steel plate 3 with the opening facing upwards. The lintel 6 and structural beam 2 are adapted to be installed within the opening of the U-shaped steel plate 3. The U-shaped steel plate 3 includes a bottom support plate 31 and a first connecting steel plate 32 connecting the front and rear sides of the bottom support plate 31. The front and rear sides of the bottom support plate 31 refer to... Figure 2 The inside and outside sides of the middle. For example... Figure 1 and Figure 2 As shown, the bottom support plate 31 supports the bottom surface of the lintel 6. A first connecting steel plate 32 on the front side of the bottom support plate 31 is disposed on the front side of the lintel 6 and the structural beam 2, and its upper end is fixed to the front side of the structural beam 2 by expansion bolts 5. A first connecting steel plate 32 on the rear side of the bottom support plate 31 is disposed on the rear side of the lintel 6 and the structural beam 2, and its upper end is fixed to the rear side of the structural beam 2 by expansion bolts 5. Figure 2 It can be understood as the front side of the bottom support plate 31, that is, the front side of the lintel 6 and the structural beam 2, or it can be understood as the rear side of the bottom support plate 31, the lintel 6 and the structural beam 2. The U-shaped steel plate 3 is provided with the first connecting steel plate 32 on the front and rear sides of the bottom support plate 31.

[0031] like Figure 1 and Figure 2As shown, the upper ends of the first connecting steel plates 32 on both sides of the U-shaped steel plate 3 are fixed to the front and rear sides of the structural beam 2 by expansion bolts 5, respectively. The lower ends of the first connecting steel plates 32 on both sides of the U-shaped steel plate 3 are connected to the front and rear sides of the bottom support plate 31, so that the bottom surface of the lintel 6 can be supported by the bottom support plate 31 to strengthen the lintel, which can better increase the vertical force of the lintel and avoid the need to install expansion bolts 5 on the side of the lintel, reducing the impact on the lintel's own structure and reducing construction difficulty. However, the bottom support plate 31 is directly set on the bottom surface of the lintel 6, which will affect the clearance below the lintel 6 and may affect the setting of door or window frames. In this embodiment, the thickness of the bottom support plate 31 is 1cm-2cm, which reduces the impact on the clearance below the lintel 6 while ensuring the supporting capacity of the lintel 6. In an optional embodiment, the bottom support plate 31 is embedded in the groove of the protective layer on the bottom side of the lintel 6 to avoid the bottom support plate 31 affecting the clearance of the lintel 6 below. Furthermore, when the thickness of the bottom support plate 31 is 1cm-2cm, embedding the bottom support plate 31 into the groove of the protective layer on the bottom side of the lintel 6 can reduce the groove opening depth of the protective layer on the bottom side of the lintel 6, reduce construction, and reduce damage to the protective layer on the bottom side of the lintel 6.

[0032] In optional implementations, such as Figure 2 As shown, the width of the base plate 31 and the first connecting steel plate 32 is 20cm-30cm. The first connecting steel plate 32 is fixed to the structural beam 2 by three expansion bolts 5 spaced apart in a row, which makes the connection stability between the first connecting steel plate 32 and the structural beam 2 higher. This arrangement also avoids the need to install more expansion bolts 5 vertically on the structural beam 2, reducing damage to the structural beam 2.

[0033] In optional implementations, such as Figure 9 As shown, the bottom of the base plate 31 is connected to the top of the window frame 8 or the door frame, which can provide more convenient fixing conditions for the top of the window frame 8 or the door frame, and avoid further damage to the lintel 6 caused by fixing the top of the window frame 8 or the door frame to the lintel 6.

[0034] In optional implementations, such as Figure 9 As shown, the side of the first connecting steel plate 32 is connected to the keel 9, which can be connected to other ceilings. The first connecting steel plate 32 provides more convenient fixing conditions for the keel 9 and avoids further damage to the lintel 6 caused by fixing the keel 9 to the lintel 6.

[0035] In another embodiment, the lower end of the vertical connecting structure suspends the front and rear sides of the lintel 6, such as... Figure 8 As shown, the vertical connection structure is a second connecting steel plate 4 installed on the front and rear sides of the structural beam 2 and the lintel 6. Figure 8Only the front or rear side door is shown, but both sides are equipped with second connecting steel plates 4. The upper end of the second connecting steel plate 4 is fixed to the front or rear side of the structural beam 2 by expansion bolts 5, and the lower end of the second connecting steel plate 4 is correspondingly fixed to the front or rear side of the lintel 6 by expansion bolts 5. By setting the second connecting steel plates 4 on the front and rear sides of the structural beam 2 and the lintel 6, the connection between the lintel 6 and the structural beam 2 is reinforced, which can improve the stability of the lintel. However, fixing the lintel 6 to the front or rear side of the lintel 6 with expansion bolts 5 can cause some damage to the lintel 6.

[0036] This embodiment provides a lintel reinforcement structure. When the lintel is fixed to structural columns 1 on both sides by internal steel bars at both ends, forming a stable foundation but with poor lintel stability, at least two vertical connecting structures are spaced apart along the length of the lintel 6. The upper ends of these vertical connecting structures are fixed to the front and rear sides of the structural beam 2 by several expansion bolts 5. This facilitates construction and reduces the impact of the vertical connecting structures on the existing structural beam 2. The lower ends of the vertical connecting structures suspend the front and rear sides or bottom of the lintel 6, providing stable vertical support and reinforcing the lintel. This ensures the vertical stress of the lintel is met, eliminating the need for rework and reducing costs. Furthermore, the vertical connecting structures use U-shaped steel plates, providing connection conditions for window frames, door frames, and the keel 9, preventing further damage to the lintel 6. The use of a second connecting steel plate 4 provides connection conditions for the keel 9, also preventing further damage to the lintel 6.

[0037] Taking the U-shaped steel plate as the vertical connection structure in this embodiment as an example, the construction of the lintel reinforcement structure is explained, including the following steps: Before reinforcement: such as Figure 3 As shown, the construction of structural column 1 and structural beam 2 is carried out to ensure that the rebar installation of secondary component lintel 6 has components that can be connected. like Figure 4 As shown, reinforcement bars are installed on structural column 1 and the reinforcement bars of lintel 6 are tied. After the formwork is erected, concrete for lintel 6 is poured. At this time, the stress on lintel 6 is unstable and there is a risk of breakage. There will be a gap 101 between lintel 6 and structural beam 2. At this time, it can be determined whether lintel 6 needs further reinforcement. During reinforcement: Based on the size of the gap between the lintel 6 and the structural beam 2 and the stress requirements of the U-shaped steel plate 3, the dimensions of the U-shaped steel plate 3 are positioned to ensure that the U-shaped steel plate 3 can firmly tie the ends of the lintel and prevent it from breaking and falling off. like Figure 5 and Figure 6As shown, the U-shaped steel plate 3 is placed in the fixed position, and the bottom of it is supported by the steel pipe column 7. At this time, after the lintel 6 is supported by the steel pipe column 7, the lintel 6 will no longer deflect. This method can avoid the risk of secondary rework, repeated pouring and repeated breakage of the lintel 6, that is, the gap 101 no longer exists. like Figure 7 As shown, three expansion bolts 5 are used to reinforce and stabilize the U-shaped steel plate 3 on the front and rear sides of the structural beam 2. At this time, the U-shaped steel plate 3 will transfer the self-weight load of the lintel 6 to the structural beam 2 and form a whole, as shown. Figure 1 and Figure 2 As shown, removing the steel pipe column 7 will not cause problems such as unstable beam stress or breakage that could cause people to fall.

[0038] After reinforcement: such as Figure 9 As shown, the U-shaped steel plate 3 can be used to fix the keel 9 and the window frame 8 or door frame.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lintel reinforcement structure, comprising a lintel (6), wherein the lintel (6) is located between structural columns (1) on the left and right sides, the lintel (6) is disposed above the bottom surface of a structural beam (2), and both ends of the lintel (6) are respectively fixed to the structural columns (1) on the left and right sides by internal steel bars, characterized in that, At least two vertical connecting structures are provided at intervals along the length of the lintel (6). The upper end of the vertical connecting structure is fixed to the front and rear sides of the structural beam (2) by a number of expansion bolts (5). The lower end of the vertical connecting structure hangs on the front and rear sides or bottom of the lintel (6).

2. The lintel reinforcement structure according to claim 1, characterized in that, The vertical connection structure is a U-shaped steel plate (3). The opening of the U-shaped steel plate (3) faces upward. The lintel (6) and the structural beam (2) are adapted to be installed in the opening of the U-shaped steel plate (3). The U-shaped steel plate (3) includes a bottom support plate (31) and a first connecting steel plate (32) connected to the front and rear sides of the bottom support plate (31). The bottom support plate (31) supports the bottom surface of the lintel (6). The first connecting steel plate (32) on the front side of the bottom support plate (31) is installed on the front side of the lintel (6) and the structural beam (2) and its upper end is fixed to the front side of the structural beam (2) by an expansion bolt (5). The first connecting steel plate (32) on the rear side of the bottom support plate (31) is installed on the rear side of the lintel (6) and the structural beam (2) and its upper end is fixed to the rear side of the structural beam (2) by an expansion bolt (5).

3. The lintel reinforcement structure according to claim 2, characterized in that, The bottom support plate (31) is embedded in the groove of the protective layer on the bottom side of the lintel (6).

4. The lintel reinforcement structure according to claim 2, characterized in that, The thickness of the base plate (31) is 1cm-2cm.

5. The lintel reinforcement structure according to claim 2, characterized in that, The width of the base plate (31) and the first connecting steel plate (32) is 20cm-30cm. The first connecting steel plate (32) is fixed to the structural beam (2) by three expansion bolts (5) spaced in a row.

6. The lintel reinforcement structure according to claim 2, characterized in that, The bottom of the base plate (31) is connected to the top of the window frame (8) or the door frame.

7. The lintel reinforcement structure according to claim 2, characterized in that, The side of the first connecting steel plate (32) is connected to the keel (9).

8. The lintel reinforcement structure according to claim 1, characterized in that, The vertical connection structure is a second connecting steel plate (4) set on the front and rear sides of the structural beam (2) and the lintel (6). The upper end of the second connecting steel plate (4) is fixed to the front or rear side of the structural beam (2) by expansion bolts (5), and the lower end of the second connecting steel plate (4) is fixed to the front or rear side of the lintel (6) by expansion bolts (5).

9. A lintel reinforcement structure according to any one of claims 1-8, characterized in that, Two vertical connecting structures are provided at intervals along the length of the lintel (6), and the two vertical connecting structures are located at two trisection points of the lintel (6).

10. A lintel reinforcement structure according to any one of claims 1-8, characterized in that, Three vertical connecting structures are provided at intervals along the length of the lintel (6), and the three vertical connecting structures are located at both ends and the middle of the lintel (6).

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