Concrete beam plate structure newly added to board top of original structure wood board

By adding a concrete beam-slab structure to the top of the original wooden floorboards, and using the original wooden floorboards as templates, the newly added concrete beams are arranged close to the original wooden beams. This solves the problem of damage to the cultural heritage building caused by traditional reinforcement methods, and achieves both safety and preservation of the structural reinforcement.

CN224244483UActive Publication Date: 2026-05-15QING DAO ZHONG FANG JIAN ZHU SHE JI YUAN GU FEN YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QING DAO ZHONG FANG JIAN ZHU SHE JI YUAN GU FEN YOU XIAN GONG SI
Filing Date
2025-05-07
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Adding a concrete beam-slab structure to the existing wooden plank roof can easily damage the original walls and wooden main beams. Traditional reinforcement methods are not suitable for protected buildings.

Method used

The design adopts a structural design in which the newly added concrete slab is closely integrated with the original wooden floor slab and beams. The original wooden floor slab is used as a template, and the newly added concrete beams are arranged close to the edges of the original wooden beams. The cantilevered slab in the middle is connected to the wall to form an integral load-bearing component, thus avoiding damage to the original structure.

Benefits of technology

It enhances structural safety without damaging the original walls and wooden main beams, making it suitable for the reinforcement needs of cultural heritage buildings.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224244483U_ABST
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Abstract

The utility model discloses a newly added concrete beam plate structure at the top of an original structure wood board, which relates to the technical field of concrete beam plates and comprises an original brick outer wall, a reinforcing surface layer is mounted on the inner wall of the original brick outer wall, a log beam is mounted at the top of the original brick outer wall, and a log floor is mounted at the top of the log beam. A newly-added concrete plate is installed at the top of the log floor slab, a newly-added concrete beam is installed at the bottom of the newly-added concrete plate, and plate top steel bars are installed on the inner wall of the newly-added concrete plate. In order to retain a log beam and a log floor slab, the log floor slab is used as a template, a concrete plate is additionally arranged on the log floor slab, main stress components are the additionally arranged concrete plate and the additionally arranged concrete beam, an edge beam of the additionally arranged concrete beam is tightly attached to the edge of the log beam, and other additionally arranged concrete beams are arranged in the middle of the log beam according to the actual situation on site. The outermost plate serves as a cantilever plate to be connected with a newly-added concrete beam and a wall reinforcing surface layer, so that structural safety is guaranteed, and an original wall and an original wooden main beam are not damaged.
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Description

Technical Field

[0001] This utility model relates to the field of concrete beam and slab technology, specifically to a structure that adds a concrete beam and slab to the top of an original wooden board. Background Technology

[0002] Currently, many old residential areas are undergoing renovation, including many cultural heritage buildings. The original buildings used wooden beams and slabs, but because they do not meet the requirements for fire protection and structural safety, it is necessary to take appropriate reinforcement measures for the original structural beams and slabs. The traditional approach is to remove the original wooden beams and slabs and add concrete beams and slabs to meet the building and structural requirements. The existing reinforcement method is only suitable for non-cultural heritage buildings where the original wooden beams and slabs can be removed, and it is not suitable for key cultural heritage buildings. In addition, the added concrete slabs need to be firmly connected to the exterior walls, which can cause significant damage to the exterior walls. Carelessness can easily damage the facade and cause significant damage to the original building. Therefore, a structure that adds concrete beams and slabs to the top of the original wooden beams and slabs is needed.

[0003] The existing technology of adding a concrete beam-slab structure to the original wooden board top is prone to damaging the original walls and wooden main beams during operation. Therefore, there is an urgent need for a new concrete beam-slab structure to the original wooden board top. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a new concrete beam-slab structure on top of an existing wooden board structure, in order to solve the problem that the existing wooden board structure with a new concrete beam-slab structure on top of it is prone to damage to the original walls and wooden main beams during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a structure with an original wooden plank top and a newly added concrete beam-slab, comprising an original brick exterior wall, a reinforced surface layer installed on the inner wall of the original brick exterior wall, an original wooden beam installed on top of the original wooden beam, an original wooden floor slab installed on top of the original wooden floor slab, a newly added concrete slab installed on top of the newly added concrete slab, and a newly added concrete beam installed at the bottom of the newly added concrete slab.

[0006] The inner wall of the slab is equipped with top reinforcement bars, and the inner wall of the newly added concrete slab is equipped with bottom reinforcement bars.

[0007] Preferably, the reinforced surface layer is tightly bonded to the original brick exterior wall, and the original wooden beam overlaps with the original brick exterior wall.

[0008] Preferably, the sidewalls of the original wooden floor slab are tightly fitted to the newly added concrete beams, and the newly added concrete beams are distributed around the center of the original wooden floor slab.

[0009] Preferably, the original timber beams are distributed at equal intervals with the central axis of the original timber floor slab as the center, and the newly added concrete beams are symmetrically arranged with the central axis of the original brick exterior wall as the center.

[0010] Preferably, the newly added concrete slab and the newly added concrete beam are cast integrally, and the top and bottom reinforcement bars of the slab are arranged in a crisscross pattern inside the newly added concrete beam.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model preserves the original wooden beams and floor slabs, and uses the original wooden floor slabs as templates to add concrete slabs on top. Its main load-bearing components are the new concrete slabs and new concrete beams. The edge beams of the new concrete beams should be arranged close to the edges of the original wooden beams, and the remaining new concrete beams should be arranged in the center of the original wooden beams according to the actual site conditions. The outermost slab serves as a cantilever slab and connects with the new concrete beams and the wall reinforcement surface layer, which ensures structural safety without damaging the original walls and wooden main beams. Attached Figure Description

[0013] Figure 1 is a structural schematic diagram of the front view of this utility model;

[0014] Figure 2 is a structural schematic diagram of the internal components of this utility model after disassembly;

[0015] Figure 3 is a structural schematic diagram showing the internal details of the concrete beam of this utility model.

[0016] In the diagram: 1. Original brick exterior wall; 2. Reinforced surface layer; 3. Original timber beam; 4. Original timber floor slab; 5. Newly added concrete slab; 6. Newly added concrete beam; 7. Top reinforcement of the slab; 8. Bottom reinforcement of the slab. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only for illustrative purposes.

[0018] This is for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

[0019] The embodiments of this utility model will be described below based on its overall structure.

[0020] Please refer to Figures 1-3. A new concrete beam-slab structure with an original wooden plank top includes an original brick exterior wall 1. The structure is characterized by: a reinforcing layer 2 installed on the inner wall of the original brick exterior wall 1; original wooden beams 3 installed on top of the original brick exterior wall 1; original wooden floor slabs 4 installed on top of the original wooden beams 3; a new concrete slab 5 installed on top of the original wooden floor slab 4; a new concrete beam 6 installed at the bottom of the new concrete slab 5; top reinforcing bars 7 and bottom reinforcing bars 8 installed on the inner wall of the new concrete slab 5; the reinforcing layer 2 is tightly fitted to the original brick exterior wall 1; the original wooden beams 3 overlap with the original brick exterior wall 1; the side walls of the original wooden floor slab 4 are tightly fitted to the new concrete beams 6; the new concrete beams 6 are distributed around the center of the original wooden floor slab 4; the original wooden beams 3 are evenly spaced around the central axis of the original wooden floor slab 4; and the new concrete beams 6 are installed around the original brick exterior wall 1. The central axis is centrally symmetrically arranged. The newly added concrete slab 5 and the newly added concrete beam 6 are cast as a whole. The top reinforcement 7 and the bottom reinforcement 8 of the slab are arranged in a crisscross pattern inside the newly added concrete beam 6. This utility model retains the original wooden beams and wooden floor slabs and uses the original wooden floor slabs as templates to add concrete slabs on them. Its main load-bearing components are the newly added concrete slabs and newly added concrete beams. The edge beams of the newly added concrete beams should be arranged close to the edge of the original wooden beams. The remaining newly added concrete beams should be arranged in the middle of the original wooden beams according to the actual site conditions. The outermost slab is connected to the newly added concrete beams and the wall reinforcement surface layer as a cantilever slab, which ensures structural safety without damaging the original walls and wooden main beams.

[0021] Working Principle: In use, first move the device to the desired location, then lay the reinforcement layer 2 on the outer side of the original brick exterior wall 1. Next, remove a section of the original wooden floor slab 4 near the reinforcement layer 2. To preserve the original wooden beam 3 and the original wooden floor slab 4, use the original wooden floor slab 4 as a template to add a new concrete slab 5. The main load-bearing components are the new concrete slab 5 and the new concrete beam 6. The edge beams of the new concrete beam 6 should be arranged close to the edge of the original wooden beam 3. The remaining new concrete beams 6 should be arranged centered in the middle of the original wooden beam 3 according to the actual site conditions. The outermost slab acts as a cantilever slab, connecting with the new concrete beam 6 and the wall reinforcement layer 2, ensuring structural safety without damaging the original wall and wooden main beam. This completes the device's operation. (Note: The last sentence about internal components not described in detail is a separate, unrelated instruction.)

[0022] The content pertains to prior art known to those skilled in the art.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A new concrete beam-slab structure with an original wooden board roof, including the original brick exterior wall (1), characterized in that: The inner wall of the original brick exterior wall (1) is equipped with a reinforced surface layer (2), the top of the original brick exterior wall (1) is equipped with a log beam (3), the top of the log beam (3) is equipped with a log floor slab (4), the top of the log floor slab (4) is equipped with a new concrete slab (5), the bottom of the new concrete slab (5) is equipped with a new concrete beam (6), the inner wall of the new concrete slab (5) is equipped with a top steel bar (7), and the inner wall of the new concrete slab (5) is equipped with a bottom steel bar (8).

2. The new concrete beam-slab structure with an original wooden board top as described in claim 1, characterized in that: The reinforced surface layer (2) is closely fitted to the original brick exterior wall (1), and the original wooden beam (3) overlaps with the original brick exterior wall (1).

3. The original wooden board top with newly added concrete beam-slab structure according to claim 1, characterized in that: The sidewalls of the original wooden floor slab (4) are closely fitted with the newly added concrete beams (6), and the newly added concrete beams (6) are distributed around the center of the original wooden floor slab (4).

4. The new concrete beam-slab structure with an original wooden board top as described in claim 1, characterized in that: The original timber beams (3) are arranged at equal intervals with the central axis of the original timber floor slab (4) as the center, and the newly added concrete beams (6) are arranged symmetrically with the central axis of the original brick exterior wall (1) as the center.

5. The new concrete beam-slab structure with an original wooden board top as described in claim 1, characterized in that: The newly added concrete slab (5) and the newly added concrete beam (6) are cast as a whole, and the top reinforcement (7) and bottom reinforcement (8) of the slab are arranged in a crisscross pattern inside the newly added concrete beam (6).