A method for opening holes in existing structure floor slabs and reinforcing the openings

Abstract

The application discloses a hole opening and hole opening reinforcing method on an existing structure floor slab, which comprises the following steps: hole opening on the existing structure floor slab: according to construction drawings, the position of the hole opening on the existing structure floor slab is determined, a temporary support assembly is installed below the existing structure floor slab, a first reinforcing assembly is fixedly installed above the existing structure floor slab, and the hole opening is performed; hole opening reinforcing on the existing structure floor slab: the temporary support assembly is removed, the first reinforcing assembly is installed below the existing structure floor slab, and the first reinforcing assemblies on the upper and lower sides of the hole opening are fixedly connected through a second reinforcing assembly. Before the hole opening is performed, damping components are arranged on the upper and lower sides of the existing structure floor slab, so that the influence of the hole opening on the outside of the hole opening is reduced, and excessive damage to the original structure floor slab is avoided. After the hole opening is completed, the first reinforcing assembly is installed below the hole opening and is reinforced through the second reinforcing assembly, so that the structure floor slab can meet the stress requirement.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a method for creating and reinforcing openings in existing structural floor slabs. Background Technology

[0002] With the development of the times, my country's urbanization process has gradually shifted from a stage of rapid growth to a stage of gradual quality improvement and stock renewal. Upgrading and transforming existing building structures to revitalize them not only meets the requirements of low-carbon economic development for cost reduction and efficiency improvement, but is also necessary for the further development of cities.

[0003] As the function of a building is upgraded and changed, it is necessary to make openings in the original structural floor slabs to accommodate the renovation of the water heating or electrical systems. However, traditional opening methods can easily cause excessive damage to the original structural floor slabs. Furthermore, after openings are made in the original structural floor slabs using traditional construction methods, many structural floor slabs will no longer be able to meet the load-bearing requirements, posing a high safety hazard. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention presents a method for creating and reinforcing openings in existing structural floor slabs, comprising the following steps: Step 1: Creating openings in existing structural floor slabs; Step 1.1: Determining the location of the openings in the existing structural floor slabs according to construction drawings, and marking the opening structure on both the upper and lower surfaces of the existing structural floor slabs according to the opening structures shown on the construction drawings; Step 1.2: Installing temporary support components below the existing structural floor slabs according to the markings on the upper and lower surfaces, and fixing a set of first reinforcing components above the existing structural floor slabs, wherein the bottom of the temporary support components is supported on the lower structural floor slabs; Step 1.3: Creating openings at the marked locations; Step 2: Reinforcing the openings in the existing structural floor slabs; Step 2.1: Removing the temporary support components located below the existing structural floor slabs; Step 2.2: Fixing a set of first reinforcing components below the existing structural floor slabs; Step 2.3: Fixing the first reinforcing components located above and below the existing structural floor slabs using second reinforcing components.

[0005] Preferably, the temporary support assembly includes: a temporary support and a damping plate; wherein, the bottom of the temporary support is supported on the lower structural floor slab, the damping plate is installed on the top of the temporary support, and the damping plate is supported below the existing structural floor slab; the damping plate has a hole in the middle, and the structure of the hole matches the structure of the opening on the existing structural floor slab.

[0006] Preferably, the temporary support includes: uprights, fixing frames, adjusting frames, and support blocks; wherein, there are multiple uprights and fixing frames, and multiple uprights are connected by multiple fixing frames; the bottom of the uprights is supported on the lower structural floor slab, the adjusting frames are installed on the top of the uprights, and the support blocks are fixedly installed above the adjusting frames; the shock-absorbing plate is installed on the support blocks.

[0007] Preferably, the damping plate includes a support plate and a damping layer; wherein the damping layer is fixed on the support plate; the support plate is installed on a temporary support, and the damping layer is supported below the existing structural floor slab.

[0008] Preferably, the first reinforcement component includes: a first reinforcement plate, a second reinforcement plate, and a third reinforcement plate; the first reinforcement plate, the second reinforcement plate, and the third reinforcement plate are all fixedly installed on the existing structural floor slab; the first reinforcement plate and the second reinforcement plate are fixed to the edge of the opening in the existing structural floor slab, wherein the first reinforcement plate and the second reinforcement plate are vertical structures, and the second reinforcement plate is disposed on the outside of the first reinforcement plate; the third reinforcement plate is used to fix the ends of the first reinforcement plate and the second reinforcement plate; both sides of the second reinforcement component are respectively connected to the second reinforcement plate of the first reinforcement component located above the existing structural floor slab and the second reinforcement plate of the first reinforcement component located below the existing structural floor slab.

[0009] Preferably, the first and second reinforcing plates are fixed to the edge of the opening in the existing structural floor slab using structural adhesive; the third reinforcing plate is fixed to the existing structural floor slab using expansion bolts.

[0010] Preferably, in step 1.2 or step 2.2, the fixed installation of the first reinforcement component includes the following steps: applying structural adhesive to the inner side of the first reinforcement plate and fixing the first reinforcement plate to the edge of the existing structural floor slab opening; after the structural adhesive on the inner side of the first reinforcement plate reaches a predetermined strength, applying structural adhesive to the inner side of the second reinforcement plate and fixing the second reinforcement plate to the edge of the existing structural floor slab opening, wherein the second reinforcement plate is perpendicular to the first reinforcement plate; installing the third reinforcement plate at the ends of the first and second reinforcement plates and fixing the third reinforcement plate to the existing structural floor slab with expansion bolts.

[0011] Preferably, the first and second reinforcing plates are made of carbon fiber plates, and the third reinforcing plate is made of steel plate.

[0012] Compared with the closest prior art, the beneficial effects of the present invention are as follows: 1. Before making an opening, the present invention installs a temporary support under the existing structural floor slab, and a shock-absorbing plate matching the opening structure is installed on the top of the temporary support. A first reinforcement component is installed above the existing structural floor slab. When making the opening, the vibration can be reduced, thereby reducing the impact on the existing structural floor slab outside the opening, and thus avoiding excessive damage to the original structural floor slab.

[0013] 2. After the opening is completed, the present invention installs a first reinforcement component below the opening of the existing structural floor slab and reinforces it with a second reinforcement component, thereby increasing the load-bearing capacity of the opening edge and ensuring that the structural floor slab can meet the load-bearing requirements. Attached Figure Description

[0014] Figure 1 This is a flowchart illustrating the method for creating and reinforcing openings in existing structural floor slabs according to the present invention.

[0015] Figure 2 This is a schematic diagram of the temporary support assembly of the present invention.

[0016] Figure 3 This is a schematic diagram of the temporary support structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the shock-absorbing plate of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the reinforcement component of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of the first reinforcement component of the present invention.

[0020] Figure 7 This is a schematic diagram of the structure of the second reinforcement component of the present invention.

[0021] Figure label: 1-Temporary support, 11-Upright pole, 12-Fixed frame, 13-Adjusting frame, 14-Support block, 2-Shock-absorbing plate, 21-Support plate, 22-Shock-absorbing layer, 3-First reinforcement component, 31-First reinforcement plate, 32-Second reinforcement plate, 33-Third reinforcement plate, 4-Second reinforcement component. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] Example 1 like Figures 1-7 This invention provides a method for creating and reinforcing openings in existing structural floor slabs, comprising the following steps: Step 1: Create an opening in the existing structural floor slab: Step 1.1: Based on the construction drawings, determine the location of the opening in the existing structural floor slab, and mark the opening structure on both the upper and lower surfaces of the existing structural floor slab according to the drawings. Step 1.2: Based on the marks on the upper and lower surfaces of the existing structural floor slab, install a temporary support assembly below the existing structural floor slab, and fix a first reinforcement assembly 3 above the existing structural floor slab. The bottom of the temporary support assembly is supported on the lower structural floor slab. Step 1.3: Make the opening at the marked location. Before making the opening, install the temporary support below the existing structural floor slab, and install a vibration damping plate matching the opening structure on the top of the temporary support. Install the first reinforcement assembly above the existing structural floor slab. This reduces vibration during opening, thereby reducing the impact on the existing structural floor slab outside the opening and preventing excessive damage to the original structural floor slab.

[0024] Step 2: Reinforcement of openings in existing structural floor slabs: Step 2.1: Remove the temporary support assembly located below the existing structural floor slab. Step 2.2: Fix a set of first reinforcement components 3 below the existing structural floor slab. Step 2.3: Fix the first reinforcement components 3 located above and below the existing structural floor slab using the second reinforcement component 4. After the opening is completed, a first reinforcement component is installed below the opening in the existing structural floor slab, and reinforced by the second reinforcement component, thereby increasing the load-bearing capacity of the opening edge and ensuring that the structural floor slab meets the load-bearing requirements.

[0025] In a preferred embodiment, the temporary support assembly includes: a temporary support 1 and a damping plate 2; wherein the bottom of the temporary support 1 is supported on the lower structural floor slab, the damping plate 2 is installed on the top of the temporary support 1 and is supported below the existing structural floor slab; the damping plate 2 has a hole in the middle, and the structure of the hole matches the structure of the opening on the existing structural floor slab.

[0026] In a preferred embodiment, the temporary support 1 includes: uprights 11, fixing frames 12, adjusting frames 13, and support blocks 14; wherein, there are multiple uprights 11 and fixing frames 12, and multiple uprights 11 are connected by multiple fixing frames 12; the bottom of the uprights 11 is supported on the lower structural floor slab, the adjusting frames 13 are installed on the top of the uprights 11, and the support blocks 14 are fixedly installed above the adjusting frames 13; the shock-absorbing plate 2 is installed on the support blocks 14.

[0027] In a preferred embodiment, the damping plate 2 includes a support plate 21 and a damping layer 22; wherein the damping layer 22 is fixed on the support plate 21; the support plate 21 is installed on a temporary support 1, and the damping layer 22 is supported under the existing structural floor slab.

[0028] In a preferred embodiment, the first reinforcing component 3 includes: a first reinforcing plate 31, a second reinforcing plate 32, and a third reinforcing plate 33; the first reinforcing plate 31, the second reinforcing plate 32, and the third reinforcing plate 33 are all fixedly installed on the existing structural floor slab; the first reinforcing plate 31 and the second reinforcing plate 32 are fixed to the edge of the opening in the existing structural floor slab, wherein the first reinforcing plate 31 and the second reinforcing plate 32 are vertical structures, and the second reinforcing plate 32 is disposed on the outside of the first reinforcing plate 31; the third reinforcing plate 33 is used to fix the ends of the first reinforcing plate 31 and the second reinforcing plate 32; the two sides of the second reinforcing component 4 are respectively connected to the second reinforcing plate 32 of the first reinforcing component 3 located above the existing structural floor slab and the second reinforcing plate 32 of the first reinforcing component 3 located below the existing structural floor slab.

[0029] In a preferred embodiment, the first reinforcing plate 31 and the second reinforcing plate 32 are fixed to the edge of the existing structural floor opening by structural adhesive; the third reinforcing plate 33 is fixed to the existing structural floor by expansion bolts.

[0030] In a preferred embodiment, the fixed installation of the first reinforcing component 3 in step 1.2 or step 2.2 includes the following steps: applying structural adhesive to the inner side of the first reinforcing plate 31 and fixing the first reinforcing plate 31 to the edge of the existing structural floor slab opening; after the structural adhesive on the inner side of the first reinforcing plate 31 reaches a predetermined strength, applying structural adhesive to the inner side of the second reinforcing plate 32 and fixing the second reinforcing plate 32 to the edge of the existing structural floor slab opening, wherein the second reinforcing plate 32 is perpendicular to the first reinforcing plate 31; installing a third reinforcing plate 33 at the ends of the first reinforcing plate 31 and the second reinforcing plate 32, and fixing the third reinforcing plate 33 to the existing structural floor slab with expansion bolts.

[0031] In a preferred embodiment, the first reinforcing plate 31 and the second reinforcing plate 32 are made of carbon fiber plates, and the third reinforcing plate 33 is made of steel plate.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of the claims of the pending application of the present invention.

Claims

1. A method for creating openings and reinforcing openings in existing structural floor slabs, characterized in that, Includes the following steps: Step 1: Create an opening in the existing structural floor slab; Step 1.1: According to the construction drawings, determine the location of the opening in the existing structural floor slab, and mark the opening on the upper and lower surfaces of the existing structural floor slab according to the opening structure on the construction drawings. Step 1.2: According to the markings on the upper and lower sides of the existing structural floor slab, install a temporary support assembly below the existing structural floor slab and fix a set of first reinforcement components (3) above the existing structural floor slab, wherein the bottom of the temporary support assembly is supported on the lower structural floor slab. Step 1.3: Make a hole at the marked location; Step 2: Reinforce the openings in the existing structural floor slabs; Step 2.1: Remove the temporary support components located below the existing structural floor slab; Step 2.2: Fix and install a set of first reinforcement components (3) under the existing structural floor slab; The first reinforcement component (3) includes: a first reinforcement plate (31), a second reinforcement plate (32) and a third reinforcement plate (33); The first reinforcing plate (31), the second reinforcing plate (32) and the third reinforcing plate (33) are all fixedly installed on the existing structural floor slab; The first reinforcing plate (31) and the second reinforcing plate (32) are fixed to the edge of the existing structural floor slab opening. The first reinforcing plate (31) and the second reinforcing plate (32) are vertical structures, and the second reinforcing plate (32) is located on the outside of the first reinforcing plate (31). The third reinforcing plate (33) is used to fix the ends of the first reinforcing plate (31) and the second reinforcing plate (32); Step 2.3: Fix the first reinforcement component (3) located above the existing structural floor slab and the first reinforcement component (3) located below the existing structural floor slab using the second reinforcement component (4); The second reinforcement component (4) is connected to the second reinforcement plate (32) of the first reinforcement component (3) located above the existing structural floor slab and the second reinforcement plate (32) of the first reinforcement component (3) located below the existing structural floor slab on both sides respectively; The temporary support assembly includes: a temporary support (1) and a shock-absorbing plate (2); The damping plate (2) is installed on top of the temporary support (1) and the damping plate (2) is supported under the existing structural floor slab; The damping plate (2) has a hole in the middle, and the structure of the hole matches the structure of the opening on the existing structural floor slab. The damping plate (2) includes: a support plate (21) and a damping layer (22); The damping layer (22) is fixed on the support plate (21); The support plate (21) is installed on the temporary support (1), and the damping layer (22) is supported under the existing structural floor slab.

2. The method for creating and reinforcing openings in existing structural floor slabs as described in claim 1, characterized in that, The temporary support (1) includes: a pole (11), a fixing frame (12), an adjusting frame (13), and a support block (14). The number of the uprights (11) and the fixing frames (12) is multiple, and the multiple uprights (11) are connected by multiple fixing frames (12); The bottom of the upright (11) is supported on the lower structural floor slab, the adjustment frame (13) is installed on the top of the upright (11), and the support block (14) is fixedly installed above the adjustment frame (13); The damping plate (2) is installed on the support block (14).

3. The method for creating and reinforcing openings in existing structural floor slabs as described in claim 1, characterized in that, The first reinforcing plate (31) and the second reinforcing plate (32) are fixed to the edge of the existing structural floor slab opening by structural adhesive; The third reinforcing plate (33) is fixed to the existing structural floor slab by expansion bolts.

4. The method for creating and reinforcing openings in existing structural floor slabs as described in claim 1, characterized in that, In step 1.2 or step 2.2, the fixed installation of the first reinforcement component (3) includes the following steps; Structural adhesive is applied to the inner side of the first reinforcing plate (31), and the first reinforcing plate (31) is fixedly installed at the edge of the existing structural floor opening; After the structural adhesive on the inner side of the first reinforcing plate (31) reaches the predetermined strength, structural adhesive is brushed on the inner side of the second reinforcing plate (32), and the second reinforcing plate (32) is fixedly installed at the edge of the existing structural floor opening, wherein the second reinforcing plate (32) is perpendicular to the first reinforcing plate (31); The third reinforcement plate (33) is installed at the ends of the first reinforcement plate (31) and the second reinforcement plate (32), and the third reinforcement plate (33) is fixed to the existing structural floor slab by expansion bolts.

5. The method for creating and reinforcing openings in existing structural floor slabs as described in claim 1, characterized in that, The first reinforcing plate (31) and the second reinforcing plate (32) are made of carbon fiber plates, and the third reinforcing plate (33) is made of steel plate.

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