Reinforcing structure for enlarging section of stand column of old house building

Abstract

The utility model relates to the field of house building construction, in particular to an old house building stand column section increasing reinforcing structure which comprises a stand column, the stand column is provided with a chiseling face, a plurality of closed steel bars are arranged on the outer side of the stand column and arranged longitudinally, and a closed interval is defined by the chiseling face of the stand column and the closed steel bars. A plurality of longitudinal reinforcing steel bars are arranged in the closed interval, the longitudinal reinforcing steel bars are distributed along the closed edges of the closed reinforcing steel bars, the longitudinal reinforcing steel bars are attached to the closed reinforcing steel bars, a concrete column is formed on one side of the chiseling face in a pouring mode, and the stand column is wrapped with the concrete column. The longitudinal steel bars and the closed steel bars are located in the concrete column. The method has the effect of improving the safety of the house.

Description

Technical Field

[0001] The present application relates to the field of house construction, and in particular to a reinforcement structure for increasing the cross-section of columns in old houses. Background Art

[0002] The old houses built before the 1980s are multi-story masonry structures. However, the bearing capacity of masonry structures is low, and the cross-section of the columns is small. Even if the columns are firmly built with steel bars, the bearing capacity of the columns is low after being subjected to stress for a long time. This is especially true for houses with multiple floors. The entire house is supported by columns with small cross-sections. The supporting capacity of the columns for the house is limited, the supporting structure of the house is easily unstable, and the safety of the house is reduced. Utility Model Content

[0003] In order to improve the safety of houses, the present application provides a reinforcement structure with an enlarged cross-section of building columns in old houses.

[0004] This application provides a structure for reinforcing columns with increased cross-section in old buildings, which adopts the following technical solutions:

[0005] A structure for reinforcing columns of old buildings with increased cross-sections includes columns, the columns are provided with a roughened surface, a plurality of closed steel bars are arranged on the outside of the columns, the closed steel bars are arranged longitudinally, the roughened surface of the columns and the closed steel bars form a closed interval, a plurality of longitudinal steel bars are arranged in the closed interval, the longitudinal steel bars are distributed along the closed edges of the closed steel bars, the longitudinal steel bars are fitted with the closed steel bars, a concrete column is cast on one side of the roughened surface, the concrete column is wrapped around the columns, and the longitudinal steel bars and the closed steel bars are located in the concrete column.

[0006] By adopting the above technical solution, concrete columns are cast on the outside of the columns, thereby increasing the supporting cross-sectional area of ​​the floors and improving the supporting stability of the columns on the house. Longitudinal steel bars and closed steel bars are set to support the concrete column structure, reducing the risk of concrete column collapse, thereby improving the safety of the house.

[0007] Optionally, a reinforcing steel bar is provided between adjacent closed steel bars, one end of the reinforcing steel bar is inserted and fixed to the column, and one end of the reinforcing steel bar away from the column is fixed to the longitudinal steel bar.

[0008] By adopting the above technical solution, the stability of the connection structure between the closed steel bars and the columns is enhanced, the possibility of the closed steel bars shifting during construction is reduced, and the possibility of the concrete columns pouring is reduced, thereby further improving the safety of the house.

[0009] Optionally, the bottom of the reinforcing steel bar abuts against the top of the closing steel bar.

[0010] By adopting the above technical solution, the closed steel bars support the reinforcing steel bars, reducing the possibility of the closed steel bars being tilted and improving the installation stability of the reinforcing steel bars.

[0011] Optionally, when the enlarged cross-sections of columns on adjacent floors are consistent, the longitudinal reinforcement runs through the adjacent floors.

[0012] By adopting the above technical solution, there is no need to connect the longitudinal steel bars of adjacent floors, thereby improving the stability of the longitudinal steel bars in supporting the house.

[0013] Optionally, when there are columns in adjacent floors whose cross-sections do not need to be enlarged, one end of the longitudinal reinforcement is connected to a connecting component, and the connecting component is used to connect the longitudinal reinforcement to the reinforcement in the column.

[0014] By adopting the above technical solution, the longitudinal reinforcement is connected to the column using a connection component, thereby reducing the possibility of the longitudinal reinforcement breaking and causing the concrete support to be unstable.

[0015] Optionally, the connecting assembly includes a first connecting part, a bending part and a second connecting part, one end of the first connecting part is connected to the bending part, and the end of the bending part away from the first connecting part is connected to the second connecting part, the first connecting part is welded to the longitudinal steel bar, and the second connecting part is welded to the steel bar in the column.

[0016] By adopting the above technical solution, the connection structure is simple and the operation is convenient. There is no need to perform operations such as bending the longitudinal steel bars, which reduces the possibility of reducing the supporting capacity of the longitudinal steel bars due to operations such as bending.

[0017] Optionally, the first connecting portion, the bending portion and the second connecting portion are integrally formed.

[0018] By adopting the above technical solution, the first connecting part, the bent part and the second connecting part connect the longitudinal steel bars and the steel bars in the column. After the concrete is poured and formed, the first connecting part, the bent part and the second connecting part are subjected to the load of the concrete column. The first connecting part, the bent part and the second connecting part are formed as one piece, which reduces the possibility of breakage of the connecting component and improves safety.

[0019] Optionally, the closed steel bars are densely distributed at both ends and sparsely distributed in the middle of the same floor.

[0020] By adopting the above technical solution, at the ends of the columns, the columns are subjected to greater shear forces and bending moments, and dense closed steel bars are arranged to provide sufficient constraints and bearing capacity for the columns to support the house, thereby improving the safety of the house.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Concrete columns are poured outside the columns to increase the supporting cross-sectional area of ​​the floors and improve the supporting stability of the columns for the house. Longitudinal steel bars and closed steel bars are installed to support the concrete column structure, reducing the risk of concrete column collapse, thereby improving the safety of the house;

[0023] 2. Enhance the structural stability of the connection between the closed steel bars and the columns, reduce the possibility of the closed steel bars shifting during construction, and thus reduce the possibility of concrete columns pouring and further improve the safety of the house;

[0024] 3. At the ends of the columns, which bear greater shear forces and bending moments, densely packed closed steel bars are arranged to provide sufficient restraint and bearing capacity for the columns to support the house, thereby improving the safety of the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of a closed steel bar structure in an embodiment of the present application.

[0027] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0028] Figure 4 yes Figure 1 Enlarged view of point B in the middle.

[0029] Figure 5 This is a schematic diagram of the position of the roughened surface in Example 2 of the present application.

[0030] Description of reference numerals:

[0031] 1. Column; 11. Roughened surface; 2. Closed reinforcement; 3. Longitudinal reinforcement; 31. Foundation structure; 32. Floor slab; 4. Concrete column; 5. Reinforcement steel bar; 6. First connection; 61. Bending part; 62. Second connection; 7. Wall. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a reinforcement structure for increasing the cross-section of columns in old buildings.

[0034] Example 1

[0035] Reference Figure 1 and Figure 2A structure for reinforcing columns of old buildings with increased cross-sections includes a column 1. The column 1 is square-shaped. The four outer walls of the column 1 are provided with a roughened surface 11. The roughened surface 11 has a roughened depth of 1 cm. A plurality of closed steel bars 2 are provided on the outer side of the column 1. The closed steel bars 2 are arranged in a closed shape around the outer wall of the column 1. The closed steel bars 2 are arranged longitudinally. The roughened surface 11 of the column 1 and the closed steel bars 2 form a closed interval. A plurality of longitudinal steel bars 3 are provided in the closed interval. The longitudinal steel bars 3 are distributed along the closed edges of the closed steel bars 2. The longitudinal steel bars 3 The outer wall of is fitted with the outer wall of the closed steel bar 2, thereby forming a columnar support structure on the outside of the column 1, and a formwork for pouring concrete is set up on the outside of the closed steel bar 2. A closed interval for pouring is formed between the formwork and the roughened surface 11, and concrete is poured into the closed interval, so that a concrete column 4 is cast on one side of the roughened surface 11. The concrete column 4 is wrapped around the column 1. Under the action of the roughened surface 11, the concrete column 4 is tightly fitted with the column 1, and the longitudinal steel bar 3 and the closed steel bar 2 are located inside the concrete column 4.

[0036] In order to improve the stability of the longitudinal steel bars 3 erected on the outside of the column 1, reinforcing steel bars 5 are arranged between adjacent closed steel bars 2. The side wall of the column 1 is opened with an insertion opening, and one end of the reinforcing steel bar 5 is inserted into the insertion opening, so that it is inserted and fixed to the column 1. The end of the reinforcing steel bar 5 away from the column 1 is bent so that the reinforcing steel bar 5 is fixed to the longitudinal steel bar 3.

[0037] The bottom of the reinforcing steel bar 5 is against the top of the closed steel bar 2. A fastener is provided at one end of the reinforcing steel bar 5. The fastener is used to fasten the reinforcing steel bar 5 to the longitudinal steel bar 3 and the closed steel bar 2, thereby improving the stability after the stable structure of the longitudinal steel bar 3 and the closed steel bar 2 is built. In this embodiment, the fastener is made of iron wire, which is not shown in the figure.

[0038] Reference Figure 1 and Figure 3 When the column 1 that needs to be enlarged is located on the first floor of the floor, the bottom end of the longitudinal steel bar 3 is directly implanted into the foundation structure 31 for fixation. In this example, the foundation structure 31 can be the foundation pedestal or the basement floor slab; when the enlarged sections of the columns 1 on adjacent floors are consistent, part of the floor slab 32 near the column 1 is chiseled off, and the longitudinal steel bar 3 passes through the adjacent floors; when there are columns 1 on adjacent floors that do not need to be enlarged, it means that the cross-sectional areas of the columns 1 on adjacent floors are inconsistent, and the longitudinal steel bar 3 cannot be directly passed through the floor for installation. Part of the floor slab 32 near the column 1 is chiseled off, and a groove is chiseled on the column 1 to expose the steel bars in the column 1. A connecting component is connected to the end of the longitudinal steel bar 3 close to the column 1 that does not need to be enlarged. The connecting component is used to connect the longitudinal steel bar 3 with the steel bars in the column 1. The connecting component transitions the connection between the longitudinal steel bar 3 and the steel bars in the column 1, thereby improving the stability and reliability of the installation of the longitudinal steel bar 3.

[0039] The connecting component includes a first connecting part 6, a bending part 61 and a second connecting part 62. The first connecting part 6, the bending part 61 and the second connecting part 62 are rod-shaped. The first connecting part 6 and the second connecting part 62 are arranged in parallel. The first connecting part 6 is located at one end of the second connecting part 62, and there is a gap in the parallel direction at the ends of the first connecting part 6 and the second connecting part 62 that are close to each other. The end of the first connecting part 6 close to the second connecting part 62 is fixedly connected to one end of the bending part 61, and the end of the bending part 61 away from the first connecting part 6 is fixedly connected to the end of the second connecting part 62 close to the first connecting part 6. The bending part 61 is inclined between the first garbage part and the second connecting part 62. The first connecting part 6 is welded to the longitudinal steel bar 3, and the second connecting part 62 is welded to the steel bar in the column 1.

[0040] When the longitudinal reinforcement 3 is connected and fixed to the reinforcement in the column 1, the first connection part 6 is attached to the longitudinal reinforcement 3, and then the first connection part 6 and the longitudinal reinforcement 3 are welded and fixed, the second connection part 62 is attached to the reinforcement in the column 1, and then the second connection part 62 and the reinforcement in the column 1 are welded and fixed.

[0041] In order to improve the structural stability of the connection assembly and reduce the possibility of breakage, the first connection portion 6, the bent portion 61 and the second connection portion 62 are formed in one piece.

[0042] Reference Figure 1 and Figure 4 The closed steel bars 2 are densely distributed at both ends and sparsely distributed in the middle of the same floor. When the cross-section of the column 1 is increased, the closed steel bars 2 are densely distributed near the floor plate, while the closed steel bars 2 are sparsely distributed in the middle of the floor. While supporting the increased cross-section of the column 1, it also helps to save costs and facilitate construction operations.

[0043] The implementation principle of Example 1 of the present application is as follows: when the column 1 that needs to be enlarged is located on the first floor of a floor, the bottom end of the longitudinal steel bar 3 is directly implanted into the foundation pedestal or the basement floor slab for fixation; when the enlarged sections of the columns 1 on adjacent floors are consistent, part of the floor slab 32 near the column 1 is chiseled off, and the longitudinal steel bar 3 passes through the adjacent floors; when there is a column 1 on the adjacent floor that does not need to be enlarged, part of the floor slab 32 near the column 1 is chiseled off, and a groove is chiseled on the column 1 to expose the steel bar in the column 1, and the first connecting part 6 is welded and fixed to the longitudinal steel bar 3, and the second connecting part 62 is welded to the exposed steel bar of the column 1. When the longitudinal steel bars 3 of the column 1 on each floor are built, the longitudinal steel bar 3 is connected using the closed steel bar 2. The reinforcement bars 3 are surrounded, and then one end of the reinforcing steel bar 5 is hooked on the longitudinal steel bar 3, and the end of the reinforcing steel bar 5 away from the longitudinal steel bar 3 is inserted and fixed in the column 1, and fasteners are used to fix the positions of the reinforcing steel bar 5, the closed steel bar 2 and the longitudinal steel bar 3 to improve the lap strength of the closed steel bar 2 and the longitudinal steel bar 3. Then, the steel bars in the columns 1 of the adjacent floors are connected, or the longitudinal steel bar 3 directly passes through the adjacent floors. After the stable structure of the longitudinal steel bars 3 and the closed steel bars 2 is completed on each floor, a formwork is set up on the outside of the closed steel bar 2, and concrete is poured on the part chiseled off at the top of the floor, so that the concrete is cast and formed to form a concrete column 4, and the column 1 is enlarged in section, thereby improving the safety of the house.

[0044] Example 2

[0045] Reference Figure 5 The difference from Example 1 is that at least one side of the column 1 is fixedly connected to the wall 7, the roughened surface 11 of the column 1 is opened on the outer wall on the inner side of the house, and the two ends of the closed steel bar 2 are open. The two ends of the closed steel bar 2 are respectively inserted and fixed in the column 1. The closed steel bar 2 is located in the house and is surrounded by the roughened surface 11. The two ends of the closed steel bar 2 are close to the wall 7.

[0046] The implementation principle of Example 2 of the present application is: the closed steel bar 2 is placed on the roughened surface 11, and the two ends of the closed steel bar 2 are respectively extended along the edge of the roughened surface 11 until they are bent when encountering the wall 7, and the two ends of the closed steel bar 2 are respectively inserted into the column 1 for fixation.

[0047] The above are all preferred embodiments of the present application. These embodiments are only explanations of the present application and do not limit the scope of protection of the present application in turn. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be covered within the scope of protection of the present application.

Claims

1. A reinforcement structure for increasing the cross-section of columns in old buildings, characterized in that: The utility model comprises a column (1), wherein the column (1) is provided with a roughened surface (11), a plurality of closed steel bars (2) are arranged on the outside of the column (1), the closed steel bars (2) are arranged in a longitudinal direction, the roughened surface (11) of the column (1) and the closed steel bars (2) enclose a closed interval, a plurality of longitudinal steel bars (3) are arranged in the closed interval, the longitudinal steel bars (3) are distributed along the closed edge of the closed steel bars (2), the longitudinal steel bars (3) and the closed steel bars (2) are in contact with each other, a concrete column (4) is cast on one side of the roughened surface (11), the concrete column (4) is wrapped in the column (1), the longitudinal steel bars (3) and the closed steel bars (2) are located in the concrete column (4); a reinforcing steel bar (5) is arranged between adjacent closed steel bars (2), one end of the reinforcing steel bar (5) is fixed to the column (1), and the end of the reinforcing steel bar (5) away from the column (1) is fixed to the longitudinal steel bar (3).

2. The old building column enlarged cross-section reinforcement structure according to claim 1 is characterized in that: The bottom of the reinforcing steel bar (5) abuts against the top of the closing steel bar (2).

3. The old building column enlarged cross-section reinforcement structure according to claim 1 is characterized in that: When the enlarged cross-sections of the columns (1) of adjacent floors are consistent, the longitudinal steel bars (3) penetrate the adjacent floors.

4. The old building column enlarged cross-section reinforcement structure according to claim 1 is characterized in that: When there are columns (1) in adjacent floors that do not need to have their cross-sections enlarged, one end of the longitudinal reinforcement (3) is connected to a connection assembly, which is used to connect the longitudinal reinforcement (3) to the reinforcement in the column (1).

5. The old building column enlarged cross-section reinforcement structure according to claim 4 is characterized in that: The connecting assembly comprises a first connecting portion (6), a bending portion (61) and a second connecting portion (62), one end of the first connecting portion (6) is connected to the bending portion (61), and one end of the bending portion (61) away from the first connecting portion (6) is connected to the second connecting portion (62), the first connecting portion (6) is welded to the longitudinal steel bar (3), and the second connecting portion (62) is welded to the steel bar in the column (1).

6. The old building column enlarged cross-section reinforcement structure according to claim 5, characterized in that: The first connecting portion (6), the bending portion (61) and the second connecting portion (62) are integrally formed.

7. The old building column enlarged cross-section reinforcement structure according to claim 1 is characterized in that: The closed steel bars (2) are densely distributed at both ends and sparsely distributed in the middle of the same floor.

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