Reinforcing method for repairing newly-added hole of wall body

Abstract

The invention discloses a reinforcing method for repairing a newly-added hole of a wall, which comprises the following steps: a horizontal groove is formed in the top of the newly-added hole of the wall, and the two opposite ends of the horizontal groove respectively extend to the outer sides of the two opposite sides of the newly-added hole; a joist is built in the horizontal groove; wall bodies in the range of the newly-added hole are dismantled; a supporting column is erected in the newly-added hole, and the supporting column is supported on the joist; constructional columns are poured on the two opposite sides of the newly-added hole respectively, containing grooves are formed in the side walls of the two opposite sides of the newly-added hole, concrete keys are formed on the side portions of the constructional columns, the concrete keys are inserted into the containing grooves, and the constructional columns are tied to the wall bodies on the two opposite sides of the newly-added hole through tie bars; and the supporting columns are dismantled. The method solves the problem that according to an original method for newly adding holes in the wall, local punching stress is concentrated, and consequently the wall cracks easily.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a reinforcement method for a newly added opening in a repaired wall. Background Art

[0002] With the acceleration of the urbanization process and the development of social economy, people have put forward higher requirements for the functionality, comfort and aesthetics of buildings. In many cases, it is necessary to transform or renovate existing buildings to meet new usage requirements. Among them, one of the common renovations is to add new openings in the original wall.

[0003] The existing method for opening holes in a wall is mainly to use a marker pen to mark the position where the hole needs to be opened on the wall, then use a hammer drill or a cutting machine to perform local drilling on the marked position, then install a simple steel frame or a wooden frame at the newly drilled position to provide temporary support, and then use tools such as a hammer and a chisel to demolish the wall around the hole until the required size is reached. Finally, concrete is poured above or below the hole to increase the structural stability. However, when performing local drilling, cracks appear in the wall due to excessive stress concentration, resulting in relatively serious potential engineering quality hazards, reducing the service life of the wall to a certain extent, and at the same time reducing the structural safety. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides a reinforcement method for a newly added opening in a repaired wall to solve the problem that local drilling stress concentration in the method of adding a new opening in the original wall easily causes cracks in the wall.

[0005] To achieve the above object, a reinforcement method for a newly added opening in a repaired wall is provided, including the following steps:

[0006] A horizontal groove is opened at the top of the newly added opening of the wall, and opposite ends of the horizontal groove respectively extend to the outside of opposite sides of the newly added opening;

[0007] A supporting beam is constructed in the horizontal groove;

[0008] The wall within the range of the newly added opening is demolished;

[0009] A support column is erected in the newly added opening, and the support column is supported by the supporting beam;

[0010] Construction columns are respectively poured on opposite sides of the newly added opening. Accommodating grooves are opened on the side walls of opposite sides of the newly added opening. Concrete keys are formed on the sides of the construction columns, and the concrete keys are inserted into the accommodating grooves. The construction columns are tied to the walls on opposite sides of the newly added opening through tie bars;

[0011] The support column is demolished.

[0012] Furthermore, the joist is a steel joist, and the steel joist includes two angle steels, batten plates and tie bolts. The steps of constructing the joist in the horizontal groove include:

[0013] Insert one flange plate of each of the two angle steels into the horizontal groove respectively, so that the other flange plate of the angle steel fits against the wall at the top of the newly added opening;

[0014] Tie the tie bolts to the other flange plates of the two angle steels, so that the tie bolts penetrate through the wall;

[0015] After removing the wall within the range of the newly added opening, connect the batten plates to one flange plate of the two angle steels.

[0016] Furthermore, the joist is a reinforced concrete joist, and the steps of constructing the joist in the horizontal groove include:

[0017] Install a plurality of support components in the horizontal groove, and the plurality of support components are arranged along the length direction of the horizontal groove;

[0018] Arrange a steel bar structure in the horizontal groove and connect it to the plurality of support components;

[0019] Pour concrete in the horizontal groove, and the concrete coats the steel bar structure and the plurality of support components to solidify and form the reinforced concrete joist.

[0020] Furthermore, the support component includes a top plate, a bottom plate and a plurality of support rods. The top plate is arranged above the bottom plate, and two ends of the support rod are respectively supported and connected to the top plate and the bottom plate. The top plate presses against the upper groove wall of the horizontal groove, and the bottom plate presses against the lower groove wall of the horizontal groove.

[0021] Furthermore, the plurality of support rods are arranged in a matrix.

[0022] Furthermore, the widths of the top plate and the bottom plate are adapted to the thickness of the wall.

[0023] Furthermore, the tie bar includes two connecting sections and a connecting section. The connecting section penetrates through the wall, and two ends of the connecting section are respectively connected to one ends of the two connecting sections. One end of the connecting section extends to the outside of the construction column, and the other ends of the two connecting sections extend oppositely to form anchoring sections, and the anchoring sections are buried in the construction column.

[0024] Furthermore, the anchoring sections of the two connecting sections are connected together.

[0025] The beneficial effects of the present invention are as follows. The method for reinforcing a newly added opening in a repaired wall of the present invention effectively solves the problems existing in the existing wall opening methods, such as poor structural stability, potential safety hazards, and reduced durability. At the same time, through measures such as a bearing beam, construction columns, and tie bars, not only the overall stability of the wall is improved, but also the safety and durability of the structure are ensured, and quality hazards caused by structural instability are avoided. Description of the Drawings

[0026] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0027] Figures 1 to 3 It is a schematic diagram of the steps of the method for reinforcing a newly added opening in a repaired wall according to Embodiment 1 of the present invention.

[0028] Figure 4 It is Figure 3 a cross-sectional view taken along line A-A in

[0029] Figure 5 It is Figure 4 a cross-sectional view taken along line B-B in

[0030] Figure 6 It is a schematic diagram of the structure of the support assembly according to Embodiment 1 of the present invention.

[0031] Figure 7 and Figure 8 It is a schematic diagram of the steps of the method for reinforcing a newly added opening in a repaired wall according to Embodiment 2 of the present invention.

[0032] Figure 9 It is Figure 8 a cross-sectional view taken along line C-C in Detailed Embodiments

[0033] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention and are not intended to limit the invention. Additionally, it should be noted that for the sake of description, only parts related to the invention are shown in the drawings.

[0034] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0035] Referring to Figures 1 to 6 as shown, the present invention provides a method for reinforcing a newly added opening in a repaired wall, including the following steps:

[0036] S1. A horizontal groove is opened at the top of the newly added opening of the wall 1, and the opposite ends of the horizontal groove respectively extend to the outside of the opposite sides of the newly added opening.

[0037] S2. Construct a bearing beam in the horizontal groove.

[0038] S3. Demolish the wall 1 within the range of the newly added opening.

[0039] S4. Install a support column 2 in the newly added opening, and the support column 2 supports on the bearing beam.

[0040] S5. Pour construction columns 3 on the opposite sides of the newly added opening respectively. Accommodating grooves are provided on the side walls of the opposite sides of the newly added opening. A concrete key 31 is formed on the side of the construction column 3, and the concrete key 31 is inserted into the accommodating groove. The construction column 3 is tied to the walls 1 on the opposite sides of the newly added opening through tie bars 32.

[0041] S6. Demolish the support column 2.

[0042] In this embodiment, the bearing beam is a reinforced concrete bearing beam. Specifically, the reinforced concrete bearing beam includes a steel bar structure, a support assembly, and concrete.

[0043] Specifically, the steps of S2. Constructing a bearing beam in the horizontal groove include:

[0044] S212. Install a plurality of support assemblies 14 in the horizontal groove, and the plurality of support assemblies 14 are arranged along the length direction of the horizontal groove.

[0045] S213. Arrange the steel bar structure in the horizontal groove and connect it to the plurality of support assemblies 14.

[0046] S214. Pour concrete in the horizontal groove, and the concrete coats the steel bar structure and the plurality of support assemblies 14 to solidify and form a reinforced concrete bearing beam.

[0047] As a preferred embodiment, the support assembly 14 includes a top plate 141, a bottom plate 142, and a plurality of support rods 143.

[0048] The top plate 141 is arranged above the bottom plate 142. The two ends of the support rod 143 are respectively supported and connected to the top plate 141 and the bottom plate 142. The top plate 141 presses against the upper groove wall of the horizontal groove. The bottom plate 142 presses against the lower groove wall of the horizontal groove.

[0049] In this embodiment, the plurality of support rods 143 are arranged in a matrix.

[0050] The widths of the top plate 141 and the bottom plate 142 are adapted to the thickness of the wall 1.

[0051] As a preferred embodiment, the tie bar 32 includes two connecting segments 321 and a connecting section 322. The connecting section 322 penetrates through the wall 1. Two ends of the connecting section 322 are respectively connected to one ends of the two connecting segments 321. One end of the connecting segment 321 extends to the outside of the structural column 3. The other ends of the two connecting segments 321 extend oppositely to form an anchoring section 323. The anchoring section 323 is embedded in the structural column 3.

[0052] The anchoring sections 323 of the two connecting segments 321 are connected together.

[0053] After the reinforced concrete corbel is poured, it is necessary to use a vibrating rod or a plate vibrator to vibrate the poured reinforced concrete corbel until it is dense, so as to ensure that there are no air bubbles inside the concrete and the structure is dense. When pouring the reinforced concrete corbel, it is necessary to lay a steel reinforcement cage above the steel brace, and at the same time, the laid steel reinforcement cage needs to be firmly connected to the steel brace.

[0054] When installing the tie bar, mark the installation position of the tie bar on one side of the hole, then use a pneumatic hammer to drill a hole at the marked installation position, embed the connecting section of the tie bar into the drilled hole, and fill the hole with implanting glue to ensure the connection stability between the tie bar and the wall.

[0055] At intervals of 1 m on one side of the newly added hole, accommodation grooves are opened. The opened accommodation grooves are arranged staggeredly with the tie bars. Then the staff pours concrete, and at the same time fills the opened accommodation grooves with concrete and pours and connects them with the longitudinal bars. The strength that the reinforced concrete corbel needs to reach is C25, which means that the standard value of the cube compressive strength of the concrete is 25 MPa. This hole design is applicable to 600 mm ≤ L ≤ 3300 mm, where L represents the length of the hole.

[0056] The method for reinforcing a newly added hole in a repaired wall of the present invention effectively solves the problems existing in the existing wall opening methods, such as poor structural stability, potential safety hazards, and reduced durability. At the same time, through measures such as corbels, structural columns, and tie bars, not only the overall stability of the wall is improved, but also the safety and durability of the structure are ensured, and quality hazards caused by structural instability are avoided.

[0057] Embodiment 2

[0058] Refer to Figures 7 to 9 As shown, the present invention provides a method for reinforcing a newly added hole in a repaired wall, including the following steps:

[0059] S1. Open a horizontal groove at the top of the newly added hole in the wall 1. The opposite ends of the horizontal groove respectively extend to the outside of the opposite sides of the newly added hole.

[0060] S2. Build a corbel in the horizontal groove.

[0061] S3. Demolish the wall 1 within the range of the newly added hole.

[0062] S4. Install support column 2 in the newly added opening, and support column 2 is supported on the supporting beam.

[0063] S5. Structural columns 3 are cast on opposite sides of the newly added opening respectively. Accommodation grooves are opened on the side walls on opposite sides of the newly added opening. Concrete keys 31 are formed on the sides of the structural columns 3. The concrete keys 31 are inserted into the accommodating grooves. The structural columns 3 are tied to the walls 1 on opposite sides of the newly added opening through tie bars 32.

[0064] S6. Remove support column 2.

[0065] The difference between this embodiment and embodiment 1 is only in the joist beam. Specifically, the joist beam is a steel joist beam.

[0066] As shown in Figure 9, the steel support beam includes two angle steels 11, a tie plate 12 and a tension screw rod 13.

[0067] Accordingly, S2, the step of constructing a joist in the horizontal groove includes:

[0068] S221, inserting one flange plate of the two angle steels 11 into the horizontal groove respectively, so that the other flange plate of the angle steel 11 fits the wall 1 at the top of the newly added opening;

[0069] S222, tie the tension screw rods 13 to the other flange plates of the two angle steels 11, so that the tension screw rods 13 are inserted into the wall 1;

[0070] S223. After dismantling the wall 1 within the newly added opening, connect the gusset plate 12 to one flange plate of the two angle steels 11.

[0071] When inserting a flange plate of the angle steel into the horizontal groove, the flange plate of the angle steel is coated with adhesive. The flange plate of the angle steel is bonded to the upper groove wall and the lower groove wall of the horizontal groove.

[0072] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A method for reinforcing a newly added opening in a repaired wall, characterized in that: The following steps are involved: A horizontal groove is provided at the top of the newly added opening of the wall, and opposite ends of the horizontal groove extend to the outsides of opposite sides of the newly added opening respectively; constructing a joist in the horizontal groove; Demolish the wall within the scope of the newly added opening; Installing a support column in the newly added opening, wherein the support column is supported by the support beam; Structural columns are cast on opposite sides of the newly added opening respectively, and accommodating grooves are opened on the side walls on opposite sides of the newly added opening. Concrete keys are formed on the sides of the structural columns, and the concrete keys are inserted into the accommodating grooves. The structural columns are tied to the walls on opposite sides of the newly added opening by tie bars; The support column is removed.

2. The method for reinforcing a newly added opening in a repaired wall according to claim 1, characterized in that: The joist is a steel joist, which includes two angle steels, a tie plate and a tension screw. The steps of constructing the joist in the horizontal groove include: Insert one flange plate of the two angle steels into the horizontal groove respectively, so that the other flange plate of the angle steel fits the wall at the top of the newly added opening; The tension screw rods are tied to the other flange plates of the two angle steels so that the tension screw rods are inserted into the wall; After demolishing the wall within the newly added opening, the joining plate is connected to a flange plate of the two angle steels.

3. The method for reinforcing a newly added opening in a repaired wall according to claim 1, characterized in that: The joist is a reinforced concrete joist, and the step of constructing the joist in the horizontal groove comprises: A plurality of support components are installed in the horizontal groove, and the plurality of support components are arranged along the length direction of the horizontal groove; Disposing a steel reinforcement structure in the horizontal groove and connecting it to the plurality of support assemblies; Concrete is poured in the horizontal groove, and the concrete is coated on the steel structure and the plurality of support components to be consolidated to form the reinforced concrete joist.

4. The method for reinforcing a newly added opening in a repaired wall according to claim 3, characterized in that: The support assembly includes a top plate, a bottom plate and a plurality of support rods, the top plate is arranged above the bottom plate, the two ends of the support rods are respectively supported and connected to the top plate and the bottom plate, the top plate is pressed against the upper groove wall of the horizontal groove, and the bottom plate is pressed against the lower groove wall of the horizontal groove.

5. The method for reinforcing a newly added opening in a repaired wall according to claim 4, characterized in that: The plurality of support rods are arranged in a matrix.

6. The method for reinforcing a newly added opening in a repaired wall according to claim 4, characterized in that: The widths of the top plate and the bottom plate are adapted to the thickness of the wall.

7. The method for reinforcing a newly added opening in a repaired wall according to claim 1, characterized in that: The tie bar includes two connecting sections and a connecting section, the connecting section runs through the wall, both ends of the connecting section are respectively connected to one end of the two connecting sections, one end of the connecting section extends to the outside of the structural column, and the other end of the two connecting sections is extended to form an anchoring section, and the anchoring section is buried in the structural column.

8. The method for reinforcing a newly added opening in a repaired wall according to claim 7, characterized in that: The anchoring sections of the two connecting sections are connected together.

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