CN117365152A - Haunched connection structure of newly-added concrete wall body and existing column and connection method thereof - Google Patents
Haunched connection structure of newly-added concrete wall body and existing column and connection method thereof Download PDFInfo
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- CN117365152A CN117365152A CN202311546392.7A CN202311546392A CN117365152A CN 117365152 A CN117365152 A CN 117365152A CN 202311546392 A CN202311546392 A CN 202311546392A CN 117365152 A CN117365152 A CN 117365152A
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- concrete wall
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- 239000004567 concrete Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000004873 anchoring Methods 0.000 claims abstract description 6
- 238000007788 roughening Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000011150 reinforced concrete Substances 0.000 description 17
- 230000002787 reinforcement Effects 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
- E04B2/66—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete characterised by special cross-section of the elongated members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
A haunched connection structure of a newly-added concrete wall body and an existing column belongs to the technical field of buildings, and side haunched enlarged section columns are arranged outside the existing frame column. The side haunched enlarged section column is connected with newly added concrete walls on the two sides outside the existing frame column and is provided with a horizontal haunched angle. The two sides of the side haunched enlarged section column are respectively provided with newly-added horizontal distribution steel bars, and the newly-added horizontal distribution steel bars respectively extend from the two sides of the existing frame column to the cross anchoring device in the newly-added concrete wall along haunched angles. The newly added concrete walls on the two sides are opposite or are arranged at 90 degrees. The problem of traditional method bar planting drilling quantity is great, and damage is great to the frame post of existing structure is solved.
Description
Technical Field
The invention belongs to the technical field of buildings, in particular to a connection node of a concrete wall body and a reinforced concrete frame column in the reconstruction and reinforcement of the existing building structure in the field of building engineering, and particularly relates to a haunched connection structure of a newly-added concrete wall body and the existing column and a connection method thereof.
Background
The requirements of people on building environments and building use functions are difficult to meet in a large number of existing buildings, the requirements of improving the environments or changing the use functions are greatly increased, urban updating promotes the update and transformation of the existing buildings, and the existing building life and the use functions are prolonged safely, energy-saving, green, environment-friendly, economical and reasonably under certain conditions by adopting a series of related measures so as to exert the potential of the existing buildings. The working targets of the existing building reconstruction technology work are simply summarized, the living environment is improved, the folk life is guaranteed and improved, the working key is that the integrated improvement of the key technology of the existing building reconstruction technology is achieved, and the overall level of the existing building reconstruction technology work is effectively improved.
In the existing building structure transformation and reinforcement projects, a situation is that a building structure system is changed to be reinforced and a concrete wall is newly added, if the existing frame structure is small in lateral rigidity, insufficient in earthquake resistance and high in building height, the type of building earthquake protection is improved and the like after building transformation, a certain number of concrete walls are needed to be added to improve the lateral rigidity and the earthquake resistance of the structure, and the structural concept of related standards about multiple fortification is met. In the other case, the reinforcement of the building structure system is not changed, and a concrete wall is newly added, so that for the existing frame-anti-seismic wall, the conditions of insufficient lateral rigidity and anti-seismic capacity, overrun of house height, improvement of building anti-seismic fortification category and the like are caused by building function adjustment, and a certain number of concrete walls are required to be newly added for improving the lateral rigidity and the anti-seismic capacity of the structure; for the existing frame structure and the frame-anti-seismic wall structure, a pool is added in a basement due to the adjustment of building functions, so that a concrete wall is newly added.
The newly-added concrete wall is connected with the existing frame columns and the frame beams in a mode of planting bars, because the horizontal distribution bars and the vertical distribution bars of the concrete wall are more, the drilling amount of the planted bars is larger, the damage to the frame columns of the existing structure is larger, in order to reduce the drilling amount of the planted bars, the excessive damage to the cross section of the original frame beam columns is avoided, equal-generation connecting bars can be adopted, whether the bars are planted on all wall steel bars or equal-generation connecting bars, certain damage is generated to the cross section of the existing frame columns, the influence of the planted bars on the cross section of the existing frame columns is reduced, the planted bars are not planted on the frame columns, the work load of the reinforced items is reduced, and therefore, a connecting and reinforcing node for the newly-added concrete wall and the existing frame columns is required to be designed so as to meet the reconstruction and reinforcing requirements of the building structure.
Disclosure of Invention
The invention aims to solve the technical problems that in the project of reconstruction and reinforcement of a building structure, a joint is reinforced for the connection between a newly-added concrete wall body and an existing frame column, and in order to reduce the damage influence of a newly-added concrete wall body reinforcement drilling on the section of the existing frame column and reduce the reinforcement work load of the reinforcement project, a connection and reinforcement structure is designed, which ensures that the connection and force transmission of the newly-added concrete wall body and the existing frame column are reliable, the stress is reasonable, and the practical application of engineering is solved. The invention aims to provide a haunched connection structure of a newly added concrete wall body and an existing column, and another aim is to provide a connection method thereof.
Adopts the technical proposal that:
a haunched connection structure of an added concrete wall body and an existing column comprises the existing frame column, the added concrete wall body, added horizontally distributed steel bars and side haunched enlarged section columns. The method is characterized in that:
and a side surface armpit increasing section column is arranged outside the existing frame column.
The side haunched enlarged section column is connected with newly added concrete walls on the two sides outside the existing frame column and is provided with a horizontal haunched angle A.
The two sides of the side haunched enlarged section column are respectively provided with a plurality of layers of newly-added horizontal distribution steel bars, and each layer of newly-added horizontal distribution steel bars extends to the inside of the newly-added concrete wall body from the two sides of the existing frame column along haunched angle A to be anchored in a crossing way.
The newly-added concrete walls on the two sides outside the existing frame column are oppositely arranged or are arranged at 90 degrees.
The angle A of the horizontal haunching angle is 30-60 degrees.
The invention also provides a connecting method of the haunched connecting structure of the newly added concrete wall body and the existing column
The technical scheme is to solve the problems that in the actual reinforcement and transformation engineering project, the newly-added concrete wall body is connected with the existing frame column, the number of the embedded ribs and the holes is large, and the damage to the frame column of the existing structure is large, and to reduce the amount of the embedded ribs and the holes, the overlarge damage to the section of the original frame beam column is avoided, and the connecting and reinforcing structure is provided, which ensures that the newly-added concrete wall body is connected with the existing frame column reliably, has a direct force transmission path, is reasonable in stress and is convenient for construction.
The advantages are that:
the reinforced concrete wall has the advantages that the reinforced concrete wall is reasonable in design, the cross section is increased through the side surface of the existing frame column, the problem of the connection of the reinforced concrete wall and the reinforced concrete of the existing frame column is converted into the horizontally distributed reinforced concrete of the reinforced concrete wall, the reinforced concrete wall is bent, connected and anchored on the side surface of the existing frame column, the reinforced concrete wall is directly stressed, the connection and the force transmission are reliable, the problem that the number of the reinforced concrete holes for connecting and reinforcing nodes between the reinforced concrete wall and the existing frame column is large in the actual reinforcing engineering project can be effectively solved, the quantity of the reinforced concrete holes can be effectively reduced, the problem that the frame column of the existing structure is damaged is large due to the fact that the quantity of the reinforced concrete holes is large is avoided, in addition, as the reinforced concrete is horizontally distributed, the reinforced concrete is not planted on the existing frame column, only the side surface of the existing frame column is required to be subjected to roughening treatment, and structural interface agents are coated, the shearing force of the new and old concrete interface is effectively transferred, the reinforced concrete work load in the reinforcing project is effectively reduced, the construction difficulty is reduced, the construction progress can be effectively accelerated, the construction quality is easy to control, and economical and reasonable. Based on the reasons, the invention can be widely popularized and applied in the fields of connecting nodes of newly added concrete walls and reinforced concrete frame columns and the like in the existing building structure reconstruction and reinforcement project.
Drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 1. (an enlarged partial view of the node in fig. 1).
Fig. 3 is a schematic structural diagram of embodiment 2. (an enlarged partial view of the node in fig. 1).
The concrete column comprises an existing frame column 1, an existing concrete wall 2, a newly-added concrete wall 3, newly-added horizontally-distributed steel bars 4 (newly-added concrete wall horizontally-distributed steel bars), newly-added vertically-distributed steel bars 5 (newly-added concrete wall vertically-distributed steel bars), an existing frame column longitudinal bar 6, an existing frame column stirrup 7, side-armpit-added enlarged section columns 8 and a structural interface layer 9.
Detailed Description
Example 1
The utility model provides a newly-increased concrete wall body and haunched connection structure of existing post, includes existing frame post 1, newly-increased concrete wall body 3, newly-increased horizontal distribution reinforcing bar 4, newly-increased vertical distribution reinforcing bar 5 and side haunched increase cross-section post 8.
The side haunched enlarged section column 8 is arranged outside the existing frame column 1.
The side haunched enlarged section column 8 is connected with the newly added concrete wall 3 on two opposite sides outside the existing frame column 1 and is provided with a horizontal haunched angle A.
A plurality of newly-added vertically-distributed steel bars 5 are arranged in the side haunched enlarged section column 8 and the newly-added concrete wall 3.
The two sides in the side haunched enlarged section column 8 are respectively provided with a plurality of layers of newly-added horizontal distribution steel bars 4, and each layer of newly-added horizontal distribution steel bars 4 respectively extends to the newly-added concrete wall 3 from the two sides of the existing frame column 1 along haunched angles for cross anchoring.
The intersection of the newly added vertically distributed steel bars 5 and the newly added horizontally distributed steel bars 4 is anchored.
Further, the angle of the horizontal haunching angle A is 30 degrees to 60 degrees, and can be 30 degrees, 45 degrees or 60 degrees specifically.
Further, a structural interface layer 9 is provided between the side face of the existing frame column 1 and the side face haunched enlarged cross section column 8.
The existing concrete wall body 2 and the existing frame column 1 which are positioned at the edge and the newly added concrete wall body 3 adopt a conventional fixing method.
The existing frame column 1 is internally provided with an existing frame column longitudinal rib 6 and an existing frame column stirrup 7.
The section of the existing frame column 1 is square.
Example 2
Example 2 is substantially the same as example 1 except that:
the newly added concrete walls 3 on two sides are not arranged on two opposite sides of the existing frame column 1, but are arranged at 90 degrees on two adjacent sides of the existing frame column 1.
Each layer of newly added horizontal distribution steel bars 4 still extend into the newly added concrete wall bodies 3 which are arranged at 90 degrees on the two sides from the two sides of the existing frame column 1 according to the axillary angle direction of the side axillary enlarged section column 8, and the intersections are anchored.
Example 3
A connection method of a newly-added concrete wall body and an armpit connection structure of an existing column comprises the following steps: comprises the following steps:
the side surface of the existing frame column 1 connected with the newly added concrete wall body 3 is subjected to roughening treatment and is coated with a structural interface agent to form a structural interface layer 9, the enlarged cross section is a side surface armpit enlarged cross section column 8, and the thickness of the enlarged cross section of each side is not smaller than 60mm. The roughening treatment and the brushing of the structural interface agent (commercially known products) can ensure the effective transmission and reliable connection of the shearing force of the new and old concrete interfaces. The newly-added vertical distribution steel bars 5 and the newly-added horizontal distribution steel bars 4 are arranged in the side haunched enlarged section column 8 and the two newly-added concrete walls 3 at the outer side, and the horizontal distribution steel bars 4 extend from two sides of the existing frame column 1 to the newly-added concrete walls 3 along the haunched angle direction of the side haunched enlarged section column 8 for cross anchoring. The newly added vertically distributed steel bars 5 and the newly added horizontally distributed steel bars 4 are anchored at the crossing. The bending anchoring length from the side haunched enlarged section column 8 to the newly-added horizontally-distributed steel bars 4 in the newly-added concrete wall 3 is La, and the bending anchoring length of the newly-added horizontally-distributed steel bars 4 of the newly-added concrete wall 3 is 15d.
The technical scheme is generally used for building space to allow the frame column to have larger section increase, and indoor decoration treatment such as basements and the like can be performed. According to the method, the horizontally distributed steel bars of the concrete wall body are newly added without being planted on the existing frame column 1, so that the situation that the existing frame column 1 is greatly damaged due to the fact that the horizontally distributed steel bars are planted with more steel bars and the number of holes are large is avoided, and the damage to the existing frame column longitudinal bars 6 and the existing frame column hoops 7 in the existing frame column 1 is avoided.
Claims (7)
1. The haunched connection structure of the newly added concrete wall body and the existing column comprises the existing frame column (1), the newly added concrete wall body (3), the newly added horizontally distributed steel bars (4) and the side haunched enlarged section column (8); the method is characterized in that:
the existing frame column (1) is externally provided with a side surface armpit increasing section column (8);
the side haunched enlarged section column (8) is connected with the newly added concrete wall (3) at the two outer sides of the existing frame column (1) and is provided with a horizontal haunched angle A;
the two sides of the side haunched enlarged section column (8) are respectively provided with a plurality of layers of newly-added horizontal distribution steel bars (4), and each layer of newly-added horizontal distribution steel bars (4) respectively extends from the two sides of the existing frame column (1) to the inside of the newly-added concrete wall body (3) along haunched angle A for cross anchoring.
2. The haunched connection structure of a newly added concrete wall and an existing column according to claim 1, characterized in that:
the newly-added concrete walls (3) on the two sides outside the existing frame column (1) are oppositely arranged.
3. The haunched connection structure of a newly added concrete wall and an existing column according to claim 1, characterized in that:
the newly-added concrete walls (3) on the two sides outside the existing frame column (1) are arranged at 90 degrees.
4. The haunched connection structure of a newly added concrete wall and an existing column according to claim 1, characterized in that:
the angle A of the horizontal haunching angle is 30-60 degrees.
5. The structure for connecting a newly added concrete wall to an existing column according to claim 4, wherein:
the horizontal haunching angle A is 30 degrees, 45 degrees or 60 degrees.
6. A connection method of a newly-added concrete wall body and an armpit connection structure of an existing column comprises the following steps: the method is characterized by comprising the following steps of:
the side face of the existing frame column (1) connected with the newly-added concrete wall body (3) is provided with an axillary increase section column (8), the side face axillary increase section column (8) and the two newly-added concrete wall bodies (3) at the outer side are internally provided with newly-added horizontal distribution steel bars (4), and the horizontal distribution steel bars (4) extend to the inside of the newly-added concrete wall body (3) to be anchored in a crossing manner along the axillary angle direction of the side face axillary increase section column (8) from the two sides of the existing frame column (1).
7. The method for connecting a newly added concrete wall and an existing column with an armpit connecting structure according to claim 6, wherein: the method is characterized by comprising the following steps of:
the side surface of the existing frame column (1) is subjected to roughening treatment and is coated with a structural interface agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311546392.7A CN117365152A (en) | 2023-11-20 | 2023-11-20 | Haunched connection structure of newly-added concrete wall body and existing column and connection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311546392.7A CN117365152A (en) | 2023-11-20 | 2023-11-20 | Haunched connection structure of newly-added concrete wall body and existing column and connection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117365152A true CN117365152A (en) | 2024-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311546392.7A Pending CN117365152A (en) | 2023-11-20 | 2023-11-20 | Haunched connection structure of newly-added concrete wall body and existing column and connection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117365152A (en) |
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2023
- 2023-11-20 CN CN202311546392.7A patent/CN117365152A/en active Pending
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