Strip foundation reinforcing structure under old building wall
By introducing a combination of vertical and horizontal steel bars and new concrete columns into the strip foundation reinforcement structure under the walls of old buildings, the problem of insufficient bearing capacity without disturbing the original foundation was solved, and the stability and bearing capacity of old buildings were improved.
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
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
Existing strip foundation reinforcement structures under walls of old buildings are insufficient to meet the load-bearing requirements after changes in function without disturbing the original foundation, thus affecting the building's structural stability.
The structure adopts a combination of strip concrete base, vertical reinforcement, horizontal reinforcement, support column, new concrete column and reinforcement. By setting vertical and horizontal reinforcement at the bottom of the support column and pouring new concrete column at the connection, the friction is increased. At the same time, the bearing capacity of the foundation is improved by welding the new reinforcement to the original foundation reinforcement.
Without disturbing the original foundation, the bearing capacity of the modified foundation was enhanced, ensuring the stability of the building and meeting its functional requirements.
Smart Images
Figure CN224259472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of strip foundation reinforcement structure under building walls, specifically a strip foundation reinforcement structure for old buildings. Background Technology
[0002] Driven by urban renewal, a large number of old residential communities and historical buildings need reinforcement and renovation. Most of the original old residential communities and historical buildings have strip foundations under the walls. After the original buildings changed their use, the foundation area was simply expanded by means of rebar installation to meet the existing foundation bearing capacity. However, strip foundations are supported by both the foundation beams and the foundation flanges. Expanding the flanges can only meet the bearing capacity requirements, not the overall stress requirements. Therefore, a reinforcement structure for strip foundations under the walls of old buildings is needed.
[0003] Existing strip foundation reinforcement structures for old buildings cannot guarantee that the modified foundation can meet the load-bearing capacity after the change of function without disturbing the original foundation. This affects the support stability of the old building walls. Therefore, there is an urgent need for a strip foundation reinforcement structure for old buildings. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a strip foundation reinforcement structure under the wall of old buildings, so as to solve the problem that the existing strip foundation reinforcement structure under the wall of old buildings is inconvenient to ensure that the modified foundation can meet the bearing capacity after the change of use function without disturbing the original foundation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a strip foundation reinforcement structure for old building walls, comprising a strip concrete base, a support installed inside the strip concrete base, vertical reinforcing bars installed inside the support, horizontal reinforcing bars fixedly connected to the outer wall of the vertical reinforcing bars, a support column fixedly connected to the outer wall of the vertical reinforcing bars, an additional concrete column installed on the outer wall of the support column, and a first additional reinforcing bar installed inside the additional concrete column.
[0006] The original foundation steel bars are installed inside the strip-shaped concrete base, and a second newly added steel bar is installed at one end of the original foundation steel bars. The newly added concrete base is installed on the outer wall of the strip-shaped concrete base.
[0007] Preferably, the vertical reinforcing bars are arranged in a ring around the central axis of the supporting column, and the horizontal reinforcing bars are arranged at equal intervals around the outer wall of the vertical reinforcing bars.
[0008] Preferably, the end of the first newly added reinforcing bar is fixedly connected to the strip concrete base, and the inner wall of the newly added concrete column is roughened.
[0009] Preferably, the strip-shaped concrete base is fixedly connected to the newly added concrete column, and the first newly added reinforcing bar is sleeved on the outer wall of the support column.
[0010] Preferably, the strip concrete base is fixedly connected to the newly added concrete base, and the newly added concrete base is symmetrically arranged with respect to the central axis of the strip concrete base.
[0011] Preferably, the original foundation reinforcement is welded to the second newly added reinforcement on one side, and the second newly added reinforcement is installed through the newly added concrete base.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model, through the setting of a strip concrete base, support, vertical steel bars, horizontal steel bars, support column, newly added concrete column and first newly added steel bar, by setting vertical and horizontal steel bars at the bottom of the support column, and one end of the vertical steel bar penetrating into the strip concrete base, can enable the strip concrete base to support the support column. By pouring a newly added concrete column at the connection between the support column and the strip concrete base, it can wrap the bottom of the support column and the support. The first newly added steel bar passes through the newly added concrete column and its end is placed in the strip concrete base, which can provide auxiliary support for the support column. By setting the inner wall of the newly added concrete column to be roughened, the friction between it and the support column can be increased, so as to ensure that the modified foundation can meet the bearing capacity after the change of function without disturbing the original foundation.
[0014] 2. This utility model, through the setting of a strip concrete base, original foundation reinforcement, second newly added reinforcement and new concrete base, by connecting the end of the second newly added reinforcement with one end of the original foundation reinforcement, the original foundation reinforcement and the second newly added reinforcement are welded on one side, and then the new concrete base is poured at both ends of the strip concrete base, and the second newly added reinforcement is located in the new concrete base, can improve the load-bearing capacity of the strip concrete base. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 A three-dimensional sectional view of the concrete column has been added to this utility model.
[0017] Figure 3 This is a side view of the strip concrete base of this utility model.
[0018] In the diagram: 1. Strip concrete base; 2. Support; 3. Vertical reinforcement; 4. Horizontal reinforcement; 5. Support column; 6. Newly added concrete column; 7. First newly added reinforcement; 8. Original foundation reinforcement; 9. Second newly added reinforcement; 10. Newly added concrete base. Detailed Implementation
[0019] 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 used to explain the present invention, and should not be construed as limiting the present invention.
[0020] The embodiments of this utility model will be described below based on its overall structure.
[0021] Please see Figure 1-3 A reinforcement structure for the base of an old building wall includes a strip concrete base 1, a support 2 installed inside the strip concrete base 1, vertical steel bars 3 installed inside the support 2, horizontal steel bars 4 fixedly connected to the outer wall of the vertical steel bars 3, a support column 5 fixedly connected to the outer wall of the vertical steel bars 3, a newly added concrete column 6 installed on the outer wall of the support column 5, and a first newly added steel bar 7 installed inside the newly added concrete column 6. The vertical steel bars 3 are arranged in a ring around the central axis of the support column 5, and the horizontal steel bars 4 are arranged at equal intervals around the outer wall of the vertical steel bars 3. The end of the first newly added steel bar 7 is fixedly connected inside the strip concrete base 1. The inner wall of the newly added concrete column 6 is roughened. The strip concrete base 1 and the newly added concrete column 6 are fixedly connected, and the first newly added steel bar 7 is sleeved on the outer wall of the support column 5. This structure can ensure that the renovated foundation can meet the bearing capacity after the change of function without disturbing the original foundation.
[0022] Please see Figure 1-3 A strip foundation reinforcement structure for old building walls is described. The original foundation steel bars 8 are installed inside the strip concrete base 1. A second newly added steel bar 9 is installed at one end of the original foundation steel bars 8. A new concrete base 10 is installed on the outer wall of the strip concrete base 1. The strip concrete base 1 and the new concrete base 10 are fixedly connected. The new concrete base 10 is symmetrically arranged with the central axis of the strip concrete base 1. The original foundation steel bars 8 and the second newly added steel bars 9 are welded on one side. The second newly added steel bars 9 are inserted through the new concrete base 10, which can improve the load-bearing capacity of the strip concrete base 1.
[0023] Working principle: In use, by setting vertical steel bars 3 and horizontal steel bars 4 at the bottom of the support column 5, with one end of the vertical steel bar 3 penetrating into the strip concrete base 1, the strip concrete base 1 can support the support column 5. By pouring an additional concrete column 6 at the connection between the support column 5 and the strip concrete base 1, it wraps around the bottom of the support column 5 and the support 2. The first additional steel bar 7 passes through the additional concrete column 6 and its end is placed inside the strip concrete base 1, which can provide auxiliary support for the support column 5. The inner wall of the additional concrete column 6 is roughened to increase the friction between it and the support column 5. By connecting the end of the second additional steel bar 9 to one end of the original foundation steel bar 8, the original foundation steel bar 8 and the second additional steel bar 9 are welded on one side. Then, additional concrete bases 10 are poured at both ends of the strip concrete base 1, with the second additional steel bar 9 located inside the additional concrete base 10, which can improve the support for the strip concrete base 1. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0024] 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 strip foundation reinforcement structure for old building walls, comprising a strip concrete base (1), characterized in that: The strip concrete base (1) is equipped with a support (2), the support (2) is equipped with a vertical steel bar (3), the outer wall of the vertical steel bar (3) is fixedly connected with a horizontal steel bar (4), the outer wall of the vertical steel bar (3) is fixedly connected with a support column (5), the outer wall of the support column (5) is equipped with a new concrete column (6), and the inner wall of the new concrete column (6) is equipped with a first new steel bar (7). The original foundation steel bars (8) are installed inside the strip concrete base (1), and a second newly added steel bar (9) is installed at one end of the original foundation steel bars (8). The newly added concrete base (10) is installed on the outer wall of the strip concrete base (1).
2. The strip foundation reinforcement structure under the wall of an old building according to claim 1, characterized in that: The vertical reinforcing bars (3) are arranged in a ring around the central axis of the support column (5), and the horizontal reinforcing bars (4) are arranged at equal intervals around the outer wall of the vertical reinforcing bars (3).
3. The strip foundation reinforcement structure under the wall of an old building according to claim 1, characterized in that: The end of the first newly added steel bar (7) is fixedly connected to the strip concrete base (1), and the inner wall of the newly added concrete column (6) is roughened.
4. The strip foundation reinforcement structure under the wall of an old building according to claim 1, characterized in that: The strip concrete base (1) is fixedly connected to the newly added concrete column (6), and the first newly added steel bar (7) is sleeved on the outer wall of the support column (5).
5. The strip foundation reinforcement structure under the wall of an old building according to claim 1, characterized in that: The strip concrete base (1) is fixedly connected to the newly added concrete base (10), and the newly added concrete base (10) is symmetrically arranged with the central axis of the strip concrete base (1).
6. The strip foundation reinforcement structure under the wall of an old building according to claim 1, characterized in that: The original foundation steel bar (8) is welded to the second newly added steel bar (9) on one side, and the second newly added steel bar (9) is installed through the newly added concrete base (10).