CN115045527B - Building concrete column reinforcing node and reinforcing method - Google Patents
Building concrete column reinforcing node and reinforcing method Download PDFInfo
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- CN115045527B CN115045527B CN202210678456.8A CN202210678456A CN115045527B CN 115045527 B CN115045527 B CN 115045527B CN 202210678456 A CN202210678456 A CN 202210678456A CN 115045527 B CN115045527 B CN 115045527B
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- 239000004567 concrete Substances 0.000 title claims abstract description 202
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 49
- 238000004873 anchoring Methods 0.000 claims description 58
- 238000010276 construction Methods 0.000 claims description 20
- 230000002787 reinforcement Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008093 supporting 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
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to a building concrete column reinforcing node and a reinforcing method, which belong to the technical field of building engineering and comprise an original concrete column structural layer; and a reinforcing structure layer for reinforcing the original concrete column structure layer, wherein the reinforcing structure layer has: the steel sleeve structural layer is arranged at the periphery of the original concrete column structural layer; and the reinforced concrete structure layer is arranged at the periphery of the original concrete column structure layer, the steel sleeve structure layer, the reinforced concrete structure layer and the original concrete column structure layer are connected into a whole, and a transverse constraint tightening force is generated on the original concrete column structure layer, so that the reinforced concrete column structure layer and the original concrete column structure layer bear load together. According to the invention, the old concrete column is reinforced in a mode of combining the steel sleeve structural layer and the reinforced concrete structural layer, and compared with the prior art, the reinforced concrete column is reinforced in a single structural mode, and a larger transverse constraint tightening force can be generated on the original concrete column structural layer.
Description
Technical Field
The invention relates to a reinforced node and a reinforced method for a building concrete column, and belongs to the technical field of building engineering.
Background
In a reinforced concrete building structure, a concrete column is used as a main stress member, plays a key role in bearing vertical load and resisting lateral movement, is an important member for influencing collapse and damage of the concrete structure, and the safety performance of the reinforced concrete building is the most important link in the whole concrete building.
Concrete columns are one of the most commonly used construction engineering members in building structures, and it is particularly important to reinforce concrete columns when the bearing capacity of the concrete column members is insufficient due to improper design or construction, or change in use function, or breakage of the concrete column members occurs due to natural disasters, artificial damages, aging of building materials, and the like.
At present, reinforced concrete earthquake-resistant reinforcement technology mainly comprises a cross section increasing reinforcement method, an outsourcing steel reinforcement method, a carbon fiber pasting reinforcement method, a steel pasting reinforcement method and a reinforcing mesh composite mortar reinforcement method. However, when the existing reinforcement technology is applied to reinforcement of concrete columns, only a single structural form in a plurality of technologies is often adopted for reinforcement, the reinforcement effect is not ideal, the reinforced concrete columns have the problems of low structural strength, low bearing capacity, poor durability and the like, and the technical problems are more prominent in reinforcement construction of high-strength concrete columns or concrete columns with high shock resistance requirements.
Disclosure of Invention
The invention aims to provide a building concrete column reinforcing node and a reinforcing method, which are used for reinforcing an old concrete column in a mode of combining a steel sleeve structural layer and a reinforced concrete structural layer, so that a larger transverse constraint tightening force can be generated on the original concrete column structural layer, the structural strength and the bearing capacity of the concrete column can be improved, and the durability of the concrete column is further improved.
The invention provides a building concrete column reinforcing node, which comprises an original concrete column structural layer; and a reinforcing structure layer disposed at the periphery of the original concrete column structure layer for reinforcing the original concrete column structure layer, wherein the reinforcing structure layer has: the steel sleeve structural layer is arranged at the periphery of the original concrete column structural layer and is anchored and fixed with the original concrete column structural layer; and the reinforced concrete structure layer is arranged at the periphery of the original concrete column structure layer and anchored and fixed with the steel sleeve structure layer, the steel sleeve structure layer is positioned between the original concrete column structure layer and the reinforced concrete structure layer, the steel sleeve structure layer, the reinforced concrete structure layer and the original concrete column structure layer are connected into a whole, and a transverse constraint tightening force is generated on the original concrete column structure layer, so that the steel sleeve structure layer and the original concrete column structure layer bear load together.
In the reinforcing node provided by the invention, the characteristics can be as follows: wherein, the steel sleeve structure layer takes the steel plate as a main structure.
In the reinforcing node provided by the invention, the characteristics can be as follows: the reinforced concrete structure layer takes concrete as a basic structure and embedded bars as a reinforcing structure.
In the reinforcing node provided by the invention, the characteristics can be as follows: wherein, the steel bushing structure layer has: the four hooping pieces are respectively arranged at four column corners of the original concrete column structure layer and are provided with a first hooping part and a second hooping part which are perpendicular to each other; and four groups of tightening plates are respectively fixed between two adjacent tightening members and used for connecting the two adjacent tightening members into a whole, the first tightening part and the second tightening part in the same tightening member are attached to two adjacent side surfaces of the original concrete column structure layer, and the tightening members and the tightening plates form a steel sleeve structure layer on the periphery of the original concrete column structure layer.
In the reinforcing node provided by the invention, the characteristics can be as follows: wherein the reinforced concrete structure layer has: the concrete layer is arranged at the periphery of the original concrete column structure layer; and the reinforcing steel bar net is embedded in the concrete layer, the concrete layer is of a rectangular annular structure, the reinforcing steel bar net is enclosed into the rectangular annular structure, and the tightening piece and the tightening plate are embedded between the concrete layer and the original concrete column structural layer.
The reinforced node provided by the invention can also have the characteristics that the reinforced node further comprises: four first anchor members of group set up in the four sides on former concrete column structural layer respectively for it is fixed with former concrete column structural layer connection to overlap the structural layer with steel, wherein, first anchor member has: a first anchoring part which is anchored in the original concrete column structural layer and passes through the tightening plate; and the locking part is used for enabling the first anchoring part and the tightening plate to form fixed connection.
In the reinforcing node provided by the invention, the characteristics can be as follows: four second anchor members of group are fixed respectively and are set up in the peripheral hooping board of four sides of former concrete column structural layer and lie in the surface that is kept away from former concrete column structural layer relatively on the hooping board for it is fixed with reinforced concrete structural layer and steel bushing structural layer connection, wherein, the second anchor member has: a second anchoring portion anchored in the concrete layer and extending to one side of the tightening plate; and a welding part for welding and fixing the extension end of the second anchoring part with the outer surface of the tightening plate.
In the reinforcing node provided by the invention, the characteristics can be as follows: and gaps are formed between the inner surfaces of the hooping plates, which are relatively close to the original concrete column structure layer, and the corresponding side surfaces of the original concrete column structure layer.
In the reinforcing node provided by the invention, the characteristics can be as follows: wherein the tightening piece and the tightening plate are completely embedded in the concrete layer.
The invention also provides a method for reinforcing the building concrete column reinforcing node, which comprises the following steps:
Step one, constructing pretreatment: drilling holes at the positions of the first anchoring parts on four side surfaces of the original concrete column structural layer, drilling holes at the positions of the hooping plates for the first anchoring parts to pass through, and welding the second anchoring parts on the surfaces of the hooping plates;
Step two, building a steel sleeve structural layer: the four hooping pieces are respectively arranged at four column corners of the original concrete column structure layer, a first hooping part and a second hooping part in the same hooping piece are attached to two adjacent side surfaces of the original concrete column structure layer, then a hooping plate is welded between the two adjacent hooping pieces, the surface of the hooping plate welded with a second anchoring piece is far away from the side surface of the original concrete column structure layer, meanwhile, a hole on the hooping plate is aligned with the center of the hole on the side surface of the original concrete column structure layer, and the first anchoring piece is implanted into the hole on the side surface of the original concrete column structure layer and fixed with the hooping plate;
Step three, building a reinforced concrete structural layer: building a reinforcing steel bar net on the periphery of the original concrete column structural layer, splicing four construction templates on the periphery of the reinforcing steel bar net to form a rectangular annular structure, pouring concrete into the area between the construction templates and the original concrete column structural layer, and finally dismantling the four construction templates.
Therefore, compared with the prior art, the invention has the following advantages:
The concrete column reinforcing node comprises an original concrete column structural layer and a reinforcing structural layer, wherein the reinforcing structural layer is provided with a steel sleeve structural layer and a reinforced concrete structural layer, the steel sleeve structural layer and the reinforced concrete structural layer can be connected with the original concrete column structural layer into a whole, and a transverse constraint hooping force is generated on the original concrete column structural layer, meanwhile, the steel sleeve structural layer and the reinforced concrete structural layer can bear load action together with the original concrete column structural layer, so that an old concrete column can be reinforced, and the old concrete column is reinforced in a mode of combining the steel sleeve structural layer and the reinforced concrete structural layer.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
The index marks in the drawings are as follows: 1. an original concrete column structure layer; 2. reinforcing the structural layer; 3. a steel sleeve structural layer; 4. a reinforced concrete structural layer; 5. a tightening member; 6. tightening the plate; 7. a first tightening part; 8. a second tightening part; 9. a concrete layer; 10. a reinforcing mesh; 11. a first anchor; 12. a first anchor portion; 13. a locking part; 14. a second anchor; 15. a second anchor portion; 16. a welding part; 17. a backing plate.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
As shown in fig. 1, the building concrete column reinforcing node is arranged at the periphery of an old concrete column to be reinforced and is used for reinforcing the old concrete column at the inner side of the reinforcing node, and is suitable for concrete columns with square sections, and comprises an original concrete column structural layer 1 and a reinforcing structural layer 2, wherein the reinforcing structural layer 2 is arranged at the periphery of the original concrete column structural layer 1 and is used for reinforcing the original concrete column structural layer 1, and the reinforcing structural layer 2 is provided with a steel sleeve structural layer 3 and a reinforced concrete structural layer 4.
The steel sleeve structural layer 3 is arranged on the periphery of the original concrete column structural layer 1 and is anchored and fixed with the original concrete column structural layer 1, the reinforced concrete structural layer 4 is arranged on the periphery of the original concrete column structural layer 1 and is anchored and fixed with the steel sleeve structural layer 3, the steel sleeve structural layer 3 is arranged between the original concrete column structural layer 1 and the reinforced concrete structural layer 4, the steel sleeve structural layer 3 and the reinforced concrete structural layer 4 are connected with the original concrete column structural layer 1 into a whole, a transverse constraint tightening force is generated for the original concrete column structural layer 1, meanwhile, the steel sleeve structural layer 3 and the reinforced concrete structural layer 4 can bear load action together with the original concrete column structural layer 1, so that an old concrete column can be reinforced, and compared with the prior art, only a single structural form is adopted for reinforcing, a larger transverse constraint tightening force can be generated for the original concrete column structural layer 1, and the durability of the concrete column can be improved.
The steel sleeve structural layer 3 takes a steel plate as a main structure, wherein the steel sleeve structural layer 3 is provided with four hooping pieces 5 and four groups of hooping plates 6, the four hooping pieces 5 are respectively arranged at four column corners of the original concrete column structural layer 1, the hooping pieces 5 are provided with a first hooping part 7 and a second hooping part 8 which are mutually perpendicular, the four groups of hooping plates 6 are respectively fixed between the two adjacent hooping pieces 5 and are used for connecting the two adjacent hooping pieces 5 into a whole, the first hooping part 7 and the second hooping part 8 in the same hooping piece 5 are attached to two adjacent side surfaces of the original concrete column structural layer 1, the hooping pieces 5 and the hooping plates 6 are enclosed to form an annular enclosing structure, and the annular enclosing structure is attached to the side surface of the original concrete column structural layer 1, so that the outer periphery of the original concrete column structural layer 1 can be formed with the hooping plates 6 through the hooping pieces 5, the steel sleeve structural layer 3 can generate a transverse constraint on the original concrete column structural layer 1 and can bear the original concrete column structural layer 1, and the old load can bear the original concrete column structural layer together.
In this embodiment, the hooping piece 5 is angle steel, the first hooping portion 7 and the second hooping portion 8 are all platy, the first hooping portion 7 and the second hooping portion 8 are connected into a right angle shape, the first hooping portion 7 and the second hooping portion 8 are arranged along the height direction of the concrete column in a through length mode, after construction, the first hooping portion 7 and the second hooping portion 8 are tightly attached to the side face of the original concrete column structural layer 1 so as to guarantee the reinforcing effect, and therefore, the side face of the original concrete column structural layer 1 can be subjected to the treatment of removing the impurities and the like during construction, so that the side face of the original concrete column structural layer 1 is smooth.
In this embodiment, four sets of hooping plates 6 set up respectively in the periphery of four sides of former concrete column structural layer 1, every group includes a plurality of hooping plates 6 that set up along former concrete column structural layer 1's direction of height equidistance interval, hooping plate 6 is the steel sheet, the both ends of every hooping plate 6 respectively with two adjacent hooping pieces 5 keep away from former concrete column structural layer 1's surface welding relatively, and hooping plate 6 is close to the internal surface of former concrete column structural layer 1 and is formed with the clearance between the corresponding side of former concrete column structural layer 1 relatively, make hooping piece 5 and hooping plate 6 can bury in the concrete layer 9 completely, can play the effect of reinforcement when steel bushing structural layer 3 and reinforced concrete structural layer 4 anchor, thereby can improve the joint strength between steel bushing structural layer 3 and the reinforced concrete structural layer 4.
The reinforced concrete structure layer 4 uses concrete as a basic structure and embedded bars as a reinforcing structure, the reinforced concrete structure layer 4 is provided with a concrete layer 9 and a reinforcing mesh 10, the concrete layer 9 is arranged on the periphery of the original concrete column structure layer 1, the reinforcing mesh 10 is embedded in the concrete layer 9, the concrete layer 9 is of a rectangular annular structure, the reinforcing mesh 10 is enclosed into a rectangular annular structure, the hooping piece 5 and the hooping plate 6 are embedded between the concrete layer 9 and the original concrete column structure layer 1, the reinforced concrete structure layer 4 can be formed on the periphery of the steel sleeve structure layer 3 through the concrete layer 9 and the reinforcing mesh 10, and the reinforced concrete structure layer 4 can generate a transverse constraint hooping force on the original concrete column structure layer 1 through the steel sleeve structure layer 3 and bear load action together with the original concrete column structure layer 1 so as to be capable of reinforcing an old concrete column together with the steel sleeve structure layer 3.
In this embodiment, the concrete layer 9 is constructed in a cast-in-situ manner, the construction is assisted by a construction template, the reinforcing mesh 10 is built in advance before the construction, the reinforcing steel bars are fixed in a bundling manner, then the built reinforcing mesh 10 is embedded in a forming area in the construction template, and then concrete is poured into the construction template, so that the reinforced concrete structure layer 4 has high strength after the forming in this manner, and the reinforcing effect on the old concrete column is good.
As shown in fig. 1, the reinforcing joint further comprises four groups of first anchoring members 11, the first anchoring members 11 are used for fixedly connecting the steel sleeve structural layer 3 with the original concrete column structural layer 1, the first anchoring members 11 are provided with first anchoring portions 12 and locking portions 13, the first anchoring portions 12 are anchored in the original concrete column structural layer 1 and penetrate through the tightening plates 6, the locking portions 13 are used for fixedly connecting the first anchoring portions 12 with the tightening plates 6, the first anchoring portions 12 in the first anchoring members 11 are anchored in the original concrete column structural layer 1 after construction, the first anchoring portions 12 are fixedly connected with the tightening plates 6 through the locking portions 13, and accordingly connection fixation between the tightening plates 6 and the original concrete column structural layer 1 is achieved, and connection fixation between the steel sleeve structural layer 3 and the original concrete column structural layer 1 is achieved.
In this embodiment, the first anchoring portion 12 in the first anchoring member 11 is a chemical anchor bolt, the first anchoring portion 12 is formed by punching four sides of the original concrete column structural layer 1 and the tightening plate 6, the first anchoring portion 12 is fixedly glued in the drilled hole of the original concrete column structural layer 1 and penetrates through the drilled hole on the tightening plate 6, so that the anchoring effect on the original concrete column structural layer 1 is achieved, the locking portion 13 in the first anchoring member 11 is a nut, the locking portion 13 is sleeved on the first anchoring portion 12 and is in abutting fit with the outer surface of the tightening plate 6, so that the connection and fixation between the first anchoring portion 12 and the tightening plate 6 are achieved, and the first anchoring portion 12 is further sleeved with the base plate 17, the base plate 17 is located between the inner surface of the tightening plate 6 and the side of the original concrete column structural layer 1, so that the supporting effect can be achieved.
And four groups of first anchoring members 11 are respectively arranged on four sides of the original concrete column structural layer 1, each group comprises a plurality of first anchoring members 11 penetrating through each tightening plate 6, namely, each tightening plate 6 is uniformly provided with one first anchoring member 11.
As shown in fig. 1, the reinforcing joint further comprises four groups of second anchoring members 14, the second anchoring members 14 are used for connecting and fixing the reinforced concrete structural layer 4 and the steel sleeve structural layer 3, wherein the second anchoring members 14 are provided with second anchoring portions 15 and welding portions 16, the second anchoring portions 15 are anchored in the concrete layer 9 and extend to one side of the tightening plate 6, and the welding portions 16 are used for welding and fixing the extending ends of the second anchoring portions 15 with the outer surface of the tightening plate 6.
In this embodiment, the second anchoring member 14 is a peg, the head large-diameter section of the peg is used as the second anchoring portion 15, the tail small-diameter section of the peg is used as the welding portion 16, the second anchoring member 14 is completely embedded into the concrete layer 9, anchored with the concrete layer 9 through the second anchoring portion 15, and welded and fixed with the outer surface on the tightening plate 6 through the welding portion 16, so that the connection and fixation between the second anchoring member 14 and the tightening plate 6 are realized, and the connection and fixation between the steel jacket structural layer 3 and the reinforced concrete structural layer 4 are realized.
And four groups of second anchoring members 14 are respectively and fixedly arranged on the tightening plates 6 at the periphery of the four sides of the original concrete column structure layer 1 and are positioned on the tightening plates 6 relatively far away from the outer surface of the original concrete column structure layer 1, and each group comprises a plurality of second anchoring members 14 which are equidistantly and alternately arranged along the extending direction of the tightening plates 6, namely, a plurality of second anchoring members 14 are uniformly arranged on each tightening plate 6.
The following specifically describes a detailed process of reinforcement using the aforementioned building concrete column reinforcement nodes, including the steps of:
Step one, constructing pretreatment: drilling holes at the positions of the first anchoring parts 11 designed on the four sides of the original concrete column structural layer 1, drilling holes at the positions of the hooping plate 6 for the first anchoring parts 11 to pass through, and welding the second anchoring parts 14 on the surface of the hooping plate 6;
Step two, building a steel sleeve structural layer 3: the four hooping pieces 5 are respectively arranged at four column corners of the original concrete column structure layer 1, a first hooping part 7 and a second hooping part 8 in the same hooping piece 5 are attached to two adjacent side surfaces of the original concrete column structure layer 1, then a hooping plate 6 is welded between the two adjacent hooping pieces 5, the surface of the hooping plate 6 welded with a second anchoring piece 14 is far away from the side surface of the original concrete column structure layer 1, meanwhile, the holes on the hooping plate 6 are aligned with the centers of the holes on the side surface of the original concrete column structure layer 1, and then the first anchoring piece 11 is implanted into the holes on the side surface of the original concrete column structure layer 1 and fixed with the hooping plate 6;
Step three, building a reinforced concrete structure layer 4: and constructing a reinforcing steel bar net 10 at the periphery of the original concrete column structural layer 1, splicing four construction templates at the periphery of the reinforcing steel bar net 10 to form a rectangular annular structure, pouring concrete into the area between the construction templates and the original concrete column structural layer 1, and finally dismantling the four construction templates.
The concrete column reinforcing node comprises an original concrete column structural layer and a reinforcing structural layer, wherein the reinforcing structural layer is provided with a steel sleeve structural layer and a reinforced concrete structural layer, the steel sleeve structural layer and the reinforced concrete structural layer can be connected with the original concrete column structural layer into a whole, and a transverse constraint hooping force is generated on the original concrete column structural layer, meanwhile, the steel sleeve structural layer and the reinforced concrete structural layer can bear load action together with the original concrete column structural layer, so that an old concrete column can be reinforced, and the old concrete column is reinforced in a mode of combining the steel sleeve structural layer and the reinforced concrete structural layer.
Claims (6)
1. A building concrete column reinforcing node, comprising:
A raw concrete column structure layer (1); and
The reinforcing structure layer (2) is arranged at the periphery of the original concrete column structure layer (1) and is used for reinforcing the original concrete column structure layer (1),
Wherein the reinforcing structure layer (2) has:
the steel sleeve structural layer (3) is arranged at the periphery of the original concrete column structural layer (1) and is anchored and fixed with the original concrete column structural layer (1); and
The reinforced concrete structure layer (4) is arranged at the periphery of the original concrete column structure layer (1) and is anchored and fixed with the steel sleeve structure layer (3),
The steel sleeve structural layer (3) is positioned between the original concrete column structural layer (1) and the reinforced concrete structural layer (4),
The steel sleeve structural layer (3) and the reinforced concrete structural layer (4) are connected with the original concrete column structural layer (1) into a whole, and a transverse constraint tightening force is generated on the original concrete column structural layer (1), so that the steel sleeve structural layer and the reinforced concrete column structural layer (1) bear load together;
The steel sleeve structural layer (3) takes a steel plate as a main structure; the reinforced concrete structure layer (4) takes concrete as a basic structure and embedded bars as a reinforcing structure; the steel jacket structure layer (3) has:
The four hooping pieces (5) are respectively arranged at four column corners of the original concrete column structure layer (1) and are provided with a first hooping part (7) and a second hooping part (8) which are mutually perpendicular; and
Four groups of tightening plates (6) which are respectively fixed between two adjacent tightening pieces (5) and are used for connecting the two adjacent tightening pieces (5) into a whole,
The first tightening part (7) and the second tightening part (8) in the same tightening piece (5) are attached to two adjacent side surfaces of the original concrete column structure layer (1),
The hooping piece (5) and the hooping plate (6) form a steel sleeve structure layer (3) at the periphery of the original concrete column structure layer (1);
Further comprises:
four groups of first anchoring parts (11) are respectively arranged on four sides of the original concrete column structure layer (1) and are used for connecting and fixing the steel sleeve structure layer (3) and the original concrete column structure layer (1),
Wherein the first anchor (11) has:
a first anchoring part (12) anchored in the original concrete column structural layer (1) and penetrating through the tightening plate (6); and
Locking portion (13) for make first anchor portion (12) and banding board (6) form fixed connection, first anchor portion (12) are chemical anchor bolt, and locking portion (13) are the nut, and locking portion (13) cover are located on first anchor portion (12) and with the surface butt cooperation of banding board (6), and the cover is equipped with backing plate (17) on first anchor portion (12), and backing plate (17) are located between banding board (6) internal surface and former concrete column structural layer (1) side, backing plate (17) and banding board (6) welding.
2. The building concrete column reinforcing node of claim 1, wherein:
Wherein the reinforced concrete structure layer (4) has:
the concrete layer (9) is arranged at the periphery of the original concrete column structure layer (1); and
A reinforcing mesh (10) which is pre-buried in the concrete layer (9),
The concrete layer (9) is of a rectangular annular structure,
The reinforcement mesh (10) is enclosed into a rectangular annular structure,
The hooping piece (5) and the hooping plate (6) are pre-buried between the concrete layer (9) and the original concrete column structure layer (1).
3. The building concrete column reinforcing node of claim 1, wherein:
Four groups of second anchoring parts (14) are respectively and fixedly arranged on the tightening plates (6) at the periphery of the four side surfaces of the original concrete column structure layer (1) and are positioned on the outer surfaces of the tightening plates (6) which are relatively far away from the original concrete column structure layer (1) and are used for connecting and fixing the reinforced concrete structure layer (4) and the steel sleeve structure layer (3),
Wherein the second anchor (14) has:
a second anchor part (15) anchored in the concrete layer (9) and extending to one side of the tightening plate (6); and
And a welding part (16) for welding and fixing the extension end of the second anchoring part (15) and the outer surface of the tightening plate (6).
4. The building concrete column reinforcing node of claim 1, wherein:
the two ends of the tightening plate (6) are respectively welded with the outer surfaces of the two adjacent tightening pieces (5) relatively far away from the original concrete column structure layer (1), and a gap is formed between the inner surface of the tightening plate (6) relatively close to the original concrete column structure layer (1) and the corresponding side surface of the original concrete column structure layer (1).
5. The building concrete column reinforcing node of claim 4, wherein:
Wherein the tightening piece (5) and the tightening plate (6) are completely embedded in the concrete layer (9).
6. A method of reinforcing a column of building concrete, characterized by the steps of:
Step one, constructing pretreatment: drilling holes at the positions of the first anchoring parts (11) designed on the four sides of the original concrete column structural layer (1), drilling holes at the positions of the hooping plate (6) for the first anchoring parts (11) to pass through, and welding the second anchoring parts (14) on the surface of the hooping plate (6);
step two, building a steel sleeve structural layer (3): the four hooping pieces (5) are respectively arranged at four column corners of the original concrete column structural layer (1), a first hooping part (7) and a second hooping part (8) in the same hooping piece (5) are attached to two adjacent side surfaces of the original concrete column structural layer (1), then a hooping plate (6) is welded between the two adjacent hooping pieces (5), the surface of the hooping plate (6) with the second anchoring piece (14) welded is far away from the side surface of the original concrete column structural layer (1), meanwhile, the center of a hole on the hooping plate (6) is aligned with the center of a hole on the side surface of the original concrete column structural layer (1), and then the first anchoring piece (11) is implanted into the hole on the side surface of the original concrete column structural layer (1) and is fixed with the hooping plate (6);
Step three, building a reinforced concrete structure layer (4): building a reinforcing steel bar net (10) at the periphery of an original concrete column structure layer (1), splicing four construction templates at the periphery of the reinforcing steel bar net (10) to form a rectangular annular structure, pouring concrete into a region between the construction templates and the original concrete column structure layer (1), and finally dismantling the four construction templates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210678456.8A CN115045527B (en) | 2022-06-16 | 2022-06-16 | Building concrete column reinforcing node and reinforcing method |
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Citations (6)
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| CN206667595U (en) * | 2017-03-28 | 2017-11-24 | 合肥工业大学 | A kind of concrete column of built-in four limbs lattice steel skeleton |
| KR101982596B1 (en) * | 2019-01-02 | 2019-09-10 | 최훈정 | Seismic rehabilitation of structural concrete columns for building structures |
| CN111809908A (en) * | 2020-06-29 | 2020-10-23 | 广东省建筑科学研究院集团股份有限公司 | Concrete column reinforcing structure and construction method thereof |
| CN214117241U (en) * | 2020-12-13 | 2021-09-03 | 大连理工大学土木建筑设计研究院有限公司 | Reinforcing structure of variable cross section concrete column outsourcing angle steel of floor department |
| CN113530294A (en) * | 2021-07-15 | 2021-10-22 | 陕西省建筑科学研究院有限公司 | Method for assembling prefabricated member reinforcing column by adopting concrete |
| CN216616975U (en) * | 2021-12-31 | 2022-05-27 | 苏州中固建筑科技股份有限公司 | Reinforced structure with existing reinforced concrete column of space steel framework restraint |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206667595U (en) * | 2017-03-28 | 2017-11-24 | 合肥工业大学 | A kind of concrete column of built-in four limbs lattice steel skeleton |
| KR101982596B1 (en) * | 2019-01-02 | 2019-09-10 | 최훈정 | Seismic rehabilitation of structural concrete columns for building structures |
| CN111809908A (en) * | 2020-06-29 | 2020-10-23 | 广东省建筑科学研究院集团股份有限公司 | Concrete column reinforcing structure and construction method thereof |
| CN214117241U (en) * | 2020-12-13 | 2021-09-03 | 大连理工大学土木建筑设计研究院有限公司 | Reinforcing structure of variable cross section concrete column outsourcing angle steel of floor department |
| CN113530294A (en) * | 2021-07-15 | 2021-10-22 | 陕西省建筑科学研究院有限公司 | Method for assembling prefabricated member reinforcing column by adopting concrete |
| CN216616975U (en) * | 2021-12-31 | 2022-05-27 | 苏州中固建筑科技股份有限公司 | Reinforced structure with existing reinforced concrete column of space steel framework restraint |
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