ALC light partition wall structure for old house reconstruction

Abstract

The application relates to the technical field of building reconstruction engineering, in particular to an ALC light partition wall structure for old house reconstruction, which comprises a floor slab assembly, a pre-buried assembly, a support frame, an ALC plate assembly and a door and window frame assembly. The floor slab assembly comprises a concrete top floor slab and a concrete bottom floor slab. The pre-buried assembly is arranged at the corresponding positions of the concrete top floor slab and the concrete bottom floor slab. The two ends of the support frame are fixedly connected with the pre-buried assemblies. The door and window frame assembly comprises a door frame and a window frame. The door frame and the window frame are borne on the support frame. The ALC plate assembly is connected between the concrete top floor slab and the concrete bottom floor slab, reconstruction of a non-structural column partition wall is realized, and the application has the characteristics of facilitating improvement of reconstruction efficiency.

Description

Technical Field

[0001] This application relates to the field of building renovation engineering technology, and in particular to an ALC lightweight partition wall structure for the renovation of old houses. Background Technology

[0002] The market for renovating old buildings is currently experiencing explosive growth. Data shows that in 2023, the area of ​​existing urban housing renovation in my country exceeded 500 million square meters.

[0003] In related technologies, traditional partition wall renovation mainly adopts a cast-in-place reinforced concrete structural column + ALC slab system. A 150mm×200mm structural column is cast on site as a vertical load-bearing component, and the ALC slab is anchored to the structural column through special connectors. At least two cast-in-place reinforced concrete structural columns are required on both sides of the door frame to fix the door in place.

[0004] The existing partition wall renovation plan has the following drawbacks: it requires on-site steel bar binding, formwork erection and pouring, and the structural columns with a standard floor height of 2.8m have a curing period of at least seven days, which seriously affects the renovation efficiency and cannot take into account both the construction period and structural performance. Summary of the Invention

[0005] To improve renovation efficiency, this application provides an ALC lightweight partition wall structure for the renovation of old houses.

[0006] The technical solution provided in this application for an ALC lightweight partition wall structure for the renovation of old houses is as follows: A lightweight ALC partition wall structure for renovating old houses includes a floor slab assembly, embedded components, a support frame, an ALC panel assembly, and door and window frame assemblies. The floor slab assembly includes a concrete top floor slab and a concrete bottom floor slab. The embedded components are respectively set at corresponding positions on the concrete top floor slab and the concrete bottom floor slab. Both ends of the support frame are fixedly connected to the embedded components. The door and window frame assembly includes a door frame and a window frame, both of which are supported by the support frame. The ALC panel assembly connects the concrete top floor slab and the concrete bottom floor slab, realizing the renovation of the partition wall without structural columns.

[0007] By adopting the above scheme, an integrated design of "embedded-support-panel" is formed. The double concrete floor slabs are rigidly connected to the support frame through embedded components, closing the force path. Combined with ALC panel components, the overall lateral displacement resistance is increased, realizing the partition wall renovation work without wet and without structural columns, effectively improving construction efficiency.

[0008] Preferably, the pre-embedded component includes an installation groove and an installation steel plate. The installation groove is respectively opened at the bottom of the concrete top floor slab and the top of the concrete bottom floor slab. Chemical anchors are embedded in the installation groove for fixing the installation steel plate.

[0009] By adopting the above solution, the axial alignment error of the mounting steel plate was reduced, and the installation accuracy was improved.

[0010] Preferably, the support frame includes two longitudinally arranged galvanized steel pipe columns, with flanges processed at both ends of the two galvanized steel pipe columns. The flanges are detachably connected to the mounting steel plate by high-strength bolts, and the column spacing of the two galvanized steel pipe columns is adapted to the width of the door frame and the window frame.

[0011] By adopting the above solution, vibration resistance, assembly efficiency, and sustainable modification capabilities are all taken into account.

[0012] Preferably, one end of the galvanized steel pipe column is fixed to the mounting steel plate connected to the concrete top floor slab by rebar anchoring, and the other end of the galvanized steel pipe column is fixed to the mounting steel plate connected to the concrete bottom floor slab by welding.

[0013] By adopting the above scheme, the connection strength between the double steel pipe columns and the double concrete floor slabs was improved.

[0014] Preferably, the galvanized steel pipe column is filled with C40 micro-expansion fine stone concrete.

[0015] By adopting the above scheme, the wall thickness of the galvanized steel pipe column is effectively increased, thereby improving the axial compressive bearing capacity of the galvanized steel pipe column.

[0016] Preferably, the support frame further includes a horizontal mounting tube, which is disposed between the two galvanized steel pipe columns to form an H-shaped skeleton structure, and the installation height of the horizontal mounting tube is adapted to the height difference between the door frame and the window frame.

[0017] By adopting the above scheme, the horizontal installation pipe is rigidly connected to the galvanized steel pipe column, which converts the self-weight of the door and window frame into axial stress and reduces stress concentration at the joint.

[0018] Preferably, the ALC panel assembly includes a plurality of ALC lightweight wall panels, the top and bottom of which are fixedly connected to the bottom of the concrete top floor slab and the top of the concrete bottom floor slab, respectively.

[0019] By adopting the above solution, safety and vibration resistance are improved, making it suitable for residential, hospital, school and other building scenarios.

[0020] Preferably, the two galvanized steel pipe columns have detachable groove structures on their opposite peripheral walls corresponding to the door frame and the window frame, and the door frame and the window frame are engaged with the groove structures.

[0021] By adopting the above solution, the installation time per session is reduced, the installation accuracy is improved, and maintenance and replacement are facilitated.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. An integrated design of "embedded-support-panel" is formed. The double concrete floor slabs are rigidly connected to the support frame through embedded components, closing the force path. Combined with ALC panel components, the overall lateral displacement resistance is increased, realizing partition wall renovation work without wet and without structural columns, effectively improving construction efficiency. 2. Improved the safety and vibration resistance of the device; 3. It reduces the overall assembly difficulty and maintenance costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0024] Figure 2 This is a schematic diagram illustrating the cooperation relationship between the floor slab components and the embedded components in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Floor slab assembly; 11. Concrete top floor slab; 12. Concrete bottom floor slab; 2. Embedded assembly; 21. Mounting groove; 22. Mounting steel plate; 3. ALC panel assembly; 31. ALC lightweight wall panel; 4. Support frame; 41. Galvanized steel pipe column; 42. Horizontal mounting pipe. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0027] This application discloses an ALC lightweight partition wall structure for the renovation of old houses. (Refer to...) Figure 1-2 A lightweight ALC partition wall structure for the renovation of old houses includes a floor slab assembly 1, a pre-embedded assembly 2, a support frame 4, an ALC panel assembly 3, and a door and window frame assembly (not shown in the attached drawings). The floor slab assembly 1 includes a concrete top floor slab 11 and a concrete bottom floor slab 12. The pre-embedded assembly 2 is installed at corresponding positions on the concrete top floor slab 11 and the concrete bottom floor slab 12, respectively. Both ends of the support frame 4 are fixedly connected to the pre-embedded assembly 2.

[0028] Furthermore, the door and window frame assembly includes a door frame and a window frame, both of which are supported on the support frame 4, and the ALC plate assembly 3 is connected between the concrete top floor slab 11 and the concrete bottom floor slab 12.

[0029] Therefore, the double concrete floor slabs form a closed force system with the pre-embedded components 2 and the supporting frame 4, which improves the overall lateral stiffness. The ALC panel component 3, as a connecting layer, effectively absorbs the deformation stress between the floor slabs and reduces the risk of cracks. Through the integrated construction design of "pre-embedded-support-panel", the partition wall renovation work can be carried out without wetness and without structural columns, which effectively shortens the construction period and improves construction efficiency.

[0030] Specifically, the pre-embedded component 2 includes an installation groove 21 and an installation steel plate 22. The installation groove 21 is respectively opened at the bottom of the concrete top floor slab 11 and the top of the concrete bottom floor slab 12. It is formed by cutting and removing the filler on the wall surface using a special tool. Chemical anchors are implanted in the installation groove 21 to fix the installation steel plate 22, thereby reducing the axial alignment error of the installation steel plate 22 and improving the installation accuracy.

[0031] Furthermore, chemical anchors, as composite fasteners that achieve high-strength anchoring through chemical adhesives, often employ vinyl resin-based chemical agents injected into the drilled hole. After the screw is screwed in, the agent cures and forms a molecular-level bond with the concrete hole wall, achieving stress-free anchoring and forming an integrated force transmission system of "screw-chemical colloid-concrete". Through chemical anchors, the load of the supporting frame 4 is evenly transferred to the two concrete slabs, optimizing stress diffusion and achieving efficient force transmission.

[0032] Furthermore, in this embodiment, a buffer gap is reserved between the chemical anchor and the mounting groove 21, which allows for a small range of angular deflection under vibration conditions, improving energy dissipation capacity compared to traditional anchoring technology and reducing damage to the substrate.

[0033] On the other hand, the support frame 4 includes two longitudinally arranged galvanized steel pipe columns 41. The spacing between the two galvanized steel pipe columns 41 is adapted to the width of the door frame and window frame. Both ends of the galvanized steel pipe columns 41 are processed with flanges. The flanges are detachably connected to the mounting steel plate 22 by high-strength bolts, which strengthens the overall structural rigidity.

[0034] Furthermore, the two galvanized steel pipe columns 41 have detachable groove structures (not shown in the attached drawings) installed on their opposite peripheral walls corresponding to the door and window frames. The door and window frames are plugged into the groove structures to achieve plug-and-play functionality, reducing installation time and assembly difficulty.

[0035] Furthermore, the detachable design supports non-destructive replacement, reducing material waste and subsequent maintenance costs, meeting the dual requirements of efficient installation and long-term maintenance for partition wall renovation, and improving the technical value of the support frame 4 in terms of assembly efficiency, seismic performance and sustainable renovation.

[0036] In the process described above, one end of the galvanized steel pipe column 41 is fixed to the installation steel plate 22 connected to the concrete top floor slab 11 by anchoring. The anchoring is achieved by drilling holes in the concrete substrate, injecting anchoring adhesive, and inserting the steel bars. The chemical bonding force and mechanical locking action of the adhesive are used to firmly fix the steel bars in the concrete structure, so that the old and new structures are bonded together, thereby enhancing the overall tensile and shear strength.

[0037] Furthermore, the other end of the galvanized steel pipe column 41 is welded and fixed to the mounting steel plate 22 connected to the concrete floor slab 12, which comprehensively improves the connection strength, structural stability and load-bearing capacity of the double steel pipe columns and the double concrete floor slab.

[0038] In addition, the interior of the galvanized steel pipe column 41 is filled with C40 micro-expansion fine stone concrete. The C40 micro-expansion concrete and the steel pipe form a composite section, which effectively increases the wall thickness of the galvanized steel pipe column 41 and improves the axial compressive bearing capacity and critical yield-extension stress of the galvanized steel pipe column 41.

[0039] Furthermore, C40 micro-expansion fine stone concrete presents an alkaline environment, which can reduce corrosion of the inner wall of the steel pipe and form an internal and external protection system with the external galvanized layer. At the same time, it actively offsets shrinkage cracks through expansion stress, reducing the deformation difference of the galvanized steel pipe column 41.

[0040] On the other hand, the support frame 4 also includes a horizontal mounting pipe 42, which is welded to two galvanized steel pipe columns 41 to form an H-shaped skeleton structure. The installation height of the horizontal mounting pipe 42 is adapted to the height difference between the door frame and the window frame.

[0041] Therefore, the horizontal mounting tube 42 and the galvanized steel pipe column 41 form a rigid node, which transforms the vertical load of the door frame and window frame into the overall axial force of the H-shaped frame, reduces local stress concentration, and lowers the risk of deformation. The H-shaped frame structure has high bending stiffness. After the height of the horizontal mounting tube 42 is adapted to the position of the door and window, it can constrain the swing amplitude of the door frame and window frame under horizontal load, and has the dual functions of structural stress and door and window fixation.

[0042] In addition, the ALC panel assembly 3 includes several ALC lightweight wall panels 31. The ALC lightweight wall panels 31 are mainly made of inorganic silicate materials. They are odorless after installation. The density of the ALC lightweight wall panels 31 is only 1 / 4 of that of ordinary concrete, about 0.5 g / cm³, but the compressive strength is over 4MPa and the single-point hanging force is greater than 1200N. This can effectively reduce the self-weight of the building and improve its load-bearing capacity.

[0043] Furthermore, the ALC panel assembly 3 supports dry assembly operations. The top and bottom of several ALC lightweight wall panels 31 are fixedly connected to the bottom of the concrete top floor slab 11 and the top of the concrete bottom floor slab 12, respectively. No plastering process is required, which makes installation fast, saves construction costs, and effectively improves overall safety, vibration resistance and sustainability. It is suitable for residential, hospital, school and other building scenarios.

[0044] The implementation principle of the ALC lightweight partition wall structure for the renovation of old houses in this application embodiment is as follows: the double concrete floor slabs are rigidly connected to the support frame 4 through the pre-embedded components 2, closing the force path. In conjunction with the ALC panel components 3, the overall lateral resistance is increased, forming an integrated design of "pre-embedded-support-panel". This enables partition wall renovation work without wet and without structural column pouring, effectively improving construction efficiency. The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ALC lightweight partition wall structure for the renovation of old houses, characterized in that, The system includes a floor slab assembly (1), an embedded assembly (2), a support frame (4), an ALC slab assembly (3), and a door and window frame assembly. The floor slab assembly (1) includes a concrete top floor slab (11) and a concrete bottom floor slab (12). The embedded assembly (2) is respectively set at the corresponding positions of the concrete top floor slab (11) and the concrete bottom floor slab (12). Both ends of the support frame (4) are fixedly connected to the embedded assembly (2). The door and window frame assembly includes a door frame and a window frame. The door frame and window frame are both supported on the support frame (4). The ALC slab assembly (3) is connected between the concrete top floor slab (11) and the concrete bottom floor slab (12) to realize the renovation of the partition wall without structural columns.

2. The ALC lightweight partition wall structure for renovating old houses according to claim 1, characterized in that, The pre-embedded component (2) includes an installation groove (21) and an installation steel plate (22). The installation groove (21) is respectively opened at the bottom of the concrete top floor slab (11) and the top of the concrete bottom floor slab (12). Chemical anchors are implanted in the installation groove (21) for fixing the installation steel plate (22).

3. The ALC lightweight partition wall structure for renovating old houses according to claim 2, characterized in that, The supporting frame (4) includes two longitudinally arranged galvanized steel pipe columns (41). Flanges are machined at both ends of the two galvanized steel pipe columns (41). The flanges are detachably connected to the mounting steel plate (22) by high-strength bolts. The column spacing of the two galvanized steel pipe columns (41) is adapted to the width of the door frame and the window frame.

4. The ALC lightweight partition wall structure for the renovation of old houses according to claim 3, characterized in that, One end of the galvanized steel pipe column (41) is fixed to the mounting steel plate (22) connected to the concrete top floor slab (11) by rebar anchoring, and the other end of the galvanized steel pipe column (41) is fixed to the mounting steel plate (22) connected to the concrete bottom floor slab (12) by welding.

5. The ALC lightweight partition wall structure for renovating old houses according to claim 4, characterized in that, The galvanized steel pipe column (41) is filled with C40 micro-expansion fine stone concrete.

6. The ALC lightweight partition wall structure for renovating old houses according to claim 5, characterized in that, The support frame (4) also includes a horizontal mounting pipe (42), which is set between the two galvanized steel pipe columns (41) to form an H-shaped skeleton structure, and the installation height of the horizontal mounting pipe (42) is adapted to the height difference between the door frame and the window frame.

7. The ALC lightweight partition wall structure for renovating old houses according to claim 1, characterized in that, The ALC panel assembly (3) includes several ALC lightweight wall panels (31), the top and bottom of which are fixedly connected to the bottom of the concrete top floor slab (11) and the top of the concrete bottom floor slab (12), respectively.

8. The ALC lightweight partition wall structure for the renovation of old houses according to claim 6, characterized in that, The two galvanized steel pipe columns (41) have detachable groove structures on their opposite peripheral walls corresponding to the door frame and the window frame, and the door frame and the window frame are engaged with the groove structures.

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