External non-prestress steel strand reinforcing device for building structure body

Abstract

The utility model discloses a non-prestressed steel strand reinforcing device outside a building structure body, which comprises two support frames, the two support frames are arranged up and down, an opening is formed between the two support frames and the same side, constraint surfaces are symmetrically arranged on the support frames corresponding to the opening, fastening bolts are arranged on the support frames corresponding to the constraint surfaces, and filling areas are formed between the support frames and the constraint surfaces; the stand column is connected with the two supporting frames; the two ends of the steel strand net are fixed in the filling area through fastening bolts, the steel strand net forms a non-prestress state through the fastening bolts in a natural loose state, non-prestress constraint fixing of the two ends of the steel strand net is achieved through the constraint faces, the mounting grooves and the fastening bolts, and therefore the reliability of the reinforcing device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building fastening technology, and more specifically to a building structure external non-prestressed steel strand reinforcement device. Background Technology

[0002] Currently, when a building structure is damaged by external forces, resulting in a decrease in tensile strength and other properties, it is necessary to reinforce it with a strengthening structure to ensure its tensile performance. For this purpose, the current method of reinforcement using steel strand mesh combined with polymer mortar is often used. This technology first roughens the building surface, then attaches the steel strand mesh to the roughened surface, and fixes the steel strand mesh with bolts. Finally, it is covered by filling with an interface agent and mortar.

[0003] During the installation of the steel strand mesh, it is necessary to ensure that it is in a state without pre-tension. At the same time, in order to ensure the stability of the installation, the steel strand mesh needs to be straightened. Therefore, it is currently mostly done manually or by pulling the two ends of the steel strand mesh with a device. However, the above method has the following drawbacks:

[0004] 1. Using manual or equipment-based pulling methods can easily create prestress at both ends, resulting in uneven stress distribution on the steel strand mesh and affecting the overall strength of subsequent reinforcement components;

[0005] 2. This method can affect the filling at both ends of the steel strand mesh during use, resulting in poor filling of the steel strand mesh, and therefore needs to be improved. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a prestress-free steel strand reinforcement device for building structures, which can realize the prestress-free installation of steel strand mesh, while ensuring the subsequent filling effect of steel strand mesh.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A non-prestressed steel strand reinforcement device for building structures, comprising:

[0009] Two support frames are arranged vertically and form an opening on the same side. Each support frame has a constraint surface symmetrically provided with the opening. Fastening bolts are provided on the support frame with respect to the constraint surface. A filling area is formed between the support frame and the constraint surface.

[0010] The column connecting the two support frames;

[0011] The steel strand mesh is fixed at both ends to the filling area by fastening bolts, and the steel strand mesh is in a state of natural relaxation by fastening bolts to form a state without prestress.

[0012] As a further improvement of this utility model, the support frame includes two base frames arranged symmetrically from left to right, the number of constraint surfaces is 2 and they are respectively arranged corresponding to the two base frames, a connecting plate is provided between the two base frames, the connecting plate is provided with a through groove along the length direction, and the base frames are slidably connected to the through groove by bolts.

[0013] As a further improvement of this utility model, the base frame is provided with a fixing plate on the constraint surface, and the constraint surface and the fixing plate are provided with a plurality of constraint holes arranged in a row and connected to each other by fastening bolts.

[0014] As a further improvement of this utility model, the two support frames form a rectangular enclosure space, and the dimension of the enclosure space in the plane direction of the steel strand mesh is larger than the unfolded dimension of the steel strand mesh.

[0015] As a further improvement of this utility model, the column includes at least two vertical plates that are staggered and connected to each other. The ends of the vertical plates are provided with connecting holes and connected to the support frame. The vertical plates are provided with adjustment grooves along the length direction and are fixed to each other by bolts passing through the adjustment grooves.

[0016] As a further improvement of this utility model, the column is L-shaped, and both sides of the column are provided with connecting holes and adjustment grooves.

[0017] As a further improvement of this utility model, it also includes a protective plate, which has mounting holes and is connected to an adjustment groove by bolts. The protective plate is used to close / partially close the space between the two base frames.

[0018] As a further improvement of this utility model, the bottom of the filling area is provided with a ground hole for connecting the building structure.

[0019] The beneficial effects of this utility model are:

[0020] 1. The steel strand mesh is fixed without prestress through the constraint surface, mounting groove and fastening bolts, thereby ensuring the reliability of the reinforcement device;

[0021] 2. The filling area ensures the filling of both ends of the steel strand mesh, thereby ensuring the integrity of the subsequent reinforcement structure;

[0022] 3. The size of the enclosed space can be adjusted by setting up connecting plates and upright plates, thereby adapting to columns and walls of different specifications and sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall installation of this utility model;

[0024] Figure 2 This is a schematic diagram of the installation of the steel strand mesh of this utility model;

[0025] Figure 3 This is a schematic diagram of the base frame of this utility model;

[0026] Figure 4 This is a schematic diagram showing the installation of the upper part of the steel strand mesh and the fastening bolts in this utility model.

[0027] Reference numerals: 1. Support frame; 2. Opening; 3. Constraint surface; 4. Fastening bolt; 5. Filling area; 6. Column; 7. Steel strand mesh; 8. Base frame; 9. Connecting plate; 10. Through groove; 11. Mounting groove; 12. Enclosed space; 13. Vertical plate; 14. Connecting hole; 15. Adjusting groove; 16. Protective plate; 17. Mounting hole; 18. Ground hole. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0029] like Figure 1-4 As shown, a prestress-free steel strand reinforcement device for building structures includes two support frames 1, which are arranged vertically and form an open opening 2 on the same side. The support frames 1 are symmetrically provided with constraint surfaces 3 corresponding to the open opening 2. Fastening bolts 4 are provided on the support frames 1 corresponding to the constraint surfaces 3. A filling area 5 is formed between the support frames 1 and the constraint surfaces 3.

[0030] It also includes a column 6 that connects the two support frames 1, with each end of the column 6 connected to the two support frames 1 to achieve relative fixation of the two support frames 1.

[0031] It also includes a steel strand mesh 7, which is formed by multiple rows of horizontally and vertically arranged steel wires winding together to form a mesh structure. This part is existing technology and will not be described in detail here. The two ends of the steel strand mesh 7 are fixed to the filling area 5 by fastening bolts 4. After the steel strand mesh 7 is installed, it is attached to the constraint surface 3 by bolts. Specifically, the bolt nut area abuts against the steel strand mesh 7 to drive the steel strand mesh 7 to abut against and fix it to the constraint surface 3. The steel strand mesh 7 is in a state of natural relaxation and is formed without prestress by fastening bolts 4.

[0032] Because the steel strand mesh 7 is in a stress-free state, the stability of the reinforced structure formed after subsequent filling can be guaranteed. At the same time, due to the presence of the filling area 5, the filling effect at both ends of the steel strand mesh 7 can be guaranteed, thereby avoiding the existence of filling dead corners.

[0033] Preferably, the support frame 1 includes two base frames 8 arranged symmetrically from left to right. Each base frame 8 includes three mutually perpendicular planes, which are connected to form a rectangular apex. The number of constraint surfaces 3 is 2, and they are respectively provided for the two base frames 8. A connecting plate 9 is provided between the two base frames 8. The connecting plate 9 has a through groove 10 along its length. The base frames 8 are slidably connected to the through groove 10 by bolts.

[0034] By setting up the connecting plate 9 and the through groove 10, the operator can adjust the distance between the two base frames 8 according to the size requirements of the specific construction environment, so as to keep it compatible with the size of the steel strand mesh 7.

[0035] Preferably, the constraint surface 3 is provided with a cross-shaped mounting groove 11.

[0036] The cross-shaped mounting groove 11 can greatly increase the adjustment range of the fastening bolt 4, so as to ensure that the fastening bolt 4 can correspond to the included angle of the steel strand mesh 7.

[0037] Preferably, the two support frames 1 form a rectangular enclosure space 12. The dimension of the enclosure space 12 in the plane direction of the steel strand mesh 7 is larger than the unfolded dimension of the steel strand mesh 7, so that the two support frames 1 can constrain and fix the four top corners of the steel strand mesh 7 to ensure the relaxed state of the steel strand mesh 7 to the greatest extent and thus avoid the generation of prestress.

[0038] Preferably, the column 6 includes at least two staggered vertical plates 13. In this embodiment, the number of vertical plates 13 is 2. The ends of the vertical plates 13 are provided with connecting holes 14 and connected to the support frame 1. The vertical plates 13 are provided with adjustment grooves 15 along the length direction and are fixed to each other by bolts passing through the adjustment grooves 15.

[0039] The length of the column 6 can be adjusted and adapted according to the size of the steel strand mesh 7 by connecting at least two upright plates 13.

[0040] Preferably, the column 6 is L-shaped, and both sides of the column 6 are provided with connection holes 14 and adjustment grooves 15.

[0041] The L-shaped columns 6 can improve support performance, thereby enhancing overall stability and strength.

[0042] Preferably, it also includes a protective plate 16, which has mounting holes 17 and is connected to an adjustment groove 15 by bolts. The protective plate 16 is used to close / partially close the space between the two base frames 8.

[0043] The protective plate 16 can be used to seal the filling area 5 after filling to prevent the filling material from leaking out. In particular, for filling materials with poor adhesion, the protective plate 16 can achieve multi-stage filling from bottom to top.

[0044] Meanwhile, due to the L-shaped arrangement of the column 6, it can work with the protective plate 16 to protect both sides of the enclosed space 12.

[0045] Preferably, the bottom of the filling area 5 is provided with a ground hole 18 for connecting the building structure.

[0046] The bottom hole allows for direct and secure connection between the filling area 5 and the ground, further enhancing overall stability, especially during the installation of the steel strand mesh 7.

[0047] The following steps are included in the usage of the external non-prestressed steel strand reinforcement device for building structures provided in this embodiment:

[0048] S1. Select a steel strand mesh 7 of appropriate size according to the usage environment. Further adjust the distance between the two base frames 8 through the through groove 10 according to the size of the steel strand mesh 7, so that the distance between the two base frames 8 is greater than the corresponding size of the steel strand mesh 7. Further adjust the position between the two upright plates 13 through the adjustment groove 15, and then adjust the length of the column 6 so that the length of the column 6 is greater than the corresponding size of the steel strand mesh 7, so that the size of the enclosed space 12 is greater than the unfolded size of the steel strand mesh 7.

[0049] S2. Align the upper ends of the steel strand mesh 7 with the mounting groove 11, referring to the following for details. Figure 4 In the preferred configuration, the corner formed by the intersection of two steel wires is selected, and the position of the fastening bolts 4 within the mounting groove 11 is adjusted to secure the upper ends of the steel strand mesh 7 to the fastening bolts 4. In this configuration, the steel strand mesh 7 is loosely fixed laterally, and the lower end hangs down naturally.

[0050] S3. Further adjust the position of the corresponding fastening bolt 4 at the lower end of the steel strand mesh 7 in the mounting groove 11 to complete the fixation of the lower end of the steel strand mesh 7. Since the upper end of the steel strand mesh 7 has been constrained and fixed, a single steel wire can be used to complete the bolt fixation at the lower end of the steel strand mesh 7, thereby achieving the fixation of both ends of the steel strand mesh 7. In this state, the steel strand mesh 7 is in an unfolded state and there is no prestress.

[0051] S4. Further fill the filling area 5 with mortar or concrete. After filling, install a protective plate 16 to prevent the filling material from leaking out of the filling area 5.

[0052] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A building structure outer non-prestressed steel strand reinforcement device characterized by, It comprises two support frames (1), which are arranged in an up-down manner and form open mouths (2) on the same side, the support frames (1) are symmetrically provided with constraint surfaces (3) corresponding to the open mouths (2), the support frames (1) are provided with fastening bolts (4) corresponding to the constraint surfaces (3), and the support frames (1) and the constraint surfaces (3) form filling areas (5) therebetween. A stand column (6) connecting the two support frames (1); A steel strand net (7), which is fixed in the filling areas (5) through the fastening bolts (4) at both ends, and which forms a non-prestressed state through the fastening bolts (4) in a natural relaxed state.

2. A device for reinforcing an external non-prestressed steel strand of a building structure according to claim 1, characterized in that The support frame (1) comprises two base frames (8) arranged in a left-right symmetrical manner, the constraint surfaces (3) are two in number and are arranged corresponding to the two base frames (8) respectively, a connecting plate (9) is arranged between the two base frames (8), the connecting plate (9) is provided with a through groove (10) along the length direction, and the base frame (8) is slidably connected with the through groove (10) through a bolt.

3. A device for reinforcing an externally prestressed steel strand of a building structure according to claim 2, characterized in that The constraint surface (3) is provided with a cross-shaped mounting groove (11).

4. A device for reinforcing an external non-prestressed steel strand of a building structure according to claim 2, characterized in that The two support frames (1) form a rectangular surrounding space (12), and the size of the surrounding space (12) in the plane direction of the steel strand net (7) is greater than the unfolded size of the steel strand net (7).

5. A device for reinforcing an external non-prestressed steel strand of a building structure according to claim 4, characterized in that The stand column (6) comprises at least two vertically staggered stand plates (13), the end of the stand plate (13) is provided with a connecting hole (14) and is connected with the support frame (1), the stand plate (13) is provided with an adjusting groove (15) along the length direction and is fixed by a bolt penetrating through the adjusting groove (15).

6. A device for reinforcing an external non-prestressed steel strand of a building structure according to claim 5, characterized in that The stand column (6) is in an L shape, and the two side surfaces of the stand column (6) are provided with connecting holes (14) and adjusting grooves (15).

7. A device for reinforcing an external non-prestressed steel strand of a building structure according to claim 5, characterized in that It further comprises a protective plate (16), which is provided with a mounting hole (17) and is connected with the adjusting groove (15) through a bolt, and the protective plate (16) is used for closing / partly closing the space between the two base frames (8).

8. A device for reinforcing an external non-prestressed steel strand of a building structure according to claim 1, characterized in that The bottom of the filling area (5) is provided with a ground hole (18) for connecting a building structure.

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