CN115075607A - Reinforced concrete structure and reinforcing method - Google Patents
Reinforced concrete structure and reinforcing method Download PDFInfo
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- CN115075607A CN115075607A CN202210842376.1A CN202210842376A CN115075607A CN 115075607 A CN115075607 A CN 115075607A CN 202210842376 A CN202210842376 A CN 202210842376A CN 115075607 A CN115075607 A CN 115075607A
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- supporting beam
- galvanized steel
- reinforcing
- connecting plate
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
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- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 117
- 239000008397 galvanized steel Substances 0.000 claims abstract description 117
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 50
- 239000004567 concrete Substances 0.000 claims abstract description 42
- 230000000670 limiting effect Effects 0.000 claims abstract description 32
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 69
- 238000003466 welding Methods 0.000 claims description 39
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 29
- 239000004917 carbon fiber Substances 0.000 claims description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 29
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- 238000004026 adhesive bonding Methods 0.000 claims description 12
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- 238000000576 coating method Methods 0.000 claims description 8
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 230000008595 infiltration Effects 0.000 claims description 6
- 238000001764 infiltration Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
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- 230000032683 aging Effects 0.000 description 3
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Images
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
-
- 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
- E04G23/0244—Increasing or restoring the load-bearing capacity of building construction elements of beams at places of holes, e.g. drilled in them
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
Abstract
The invention relates to a reinforced concrete structure and a reinforcing method, belonging to the technical field of concrete structure reinforcement and comprising a support pillar, a support beam and a floor slab, wherein the outer wall of the support pillar is fixedly connected with a galvanized steel plate, reinforcing steel bars are embedded in the support pillar, the side surface of the galvanized steel plate facing the support beam is fixedly connected with a connecting plate, the top end and the bottom end of the support pillar are sleeved with steel sleeves
The connecting plate is arranged on the steel sleeve
At least one group of limit columns and a steel sleeve positioned above one end of the support beam are fixedly connected to the lower surface of the horizontal part of the connecting plate
At least one group of lifting ribs are fixedly connected withPassing through the floor slab from one side of the support beam to the other side of the support beam and steel jacket over the other end of the support beam
The lifting ribs are fixedly connected, the lifting ribs are positioned among the group of limiting columns, and the two lifting ribs are crossed on the lower surface of the supporting beam.
Description
Technical Field
The invention relates to the technical field of concrete structure reinforcement, in particular to a reinforced concrete structure and a reinforcement method.
Background
A reinforced concrete structure refers to a structure made of concrete reinforced with steel bars. The main load bearing component is constructed of reinforced concrete. The method comprises a thin-shell structure, a large-template cast-in-place structure and a building with a reinforced concrete structure built by using a slip form, a lifting plate and the like. A structure is made of steel bars and concrete. The reinforcing steel bar bears the tensile force, and the concrete bears the pressure. The steel structure has the advantages of firmness, durability, good fireproof performance, steel saving compared with a steel structure, low cost and the like.
Due to the effects of house load, a coastal corrosive environment, natural disasters such as earthquake and the like, the time increase and the like, the performance of a concrete structure of a house is deteriorated, the strength of a support column and a support beam with a reinforced concrete structure is reduced, and cracks are easy to appear at the end part of the support beam.
It is required to reinforce a support column, a support beam and a connection between the support column and the support beam having a reinforced concrete structure.
Disclosure of Invention
The invention aims to provide a reinforced concrete structure and a reinforcing method for stably reinforcing a support column and a support beam.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a reinforced concrete structure, which comprises a support column, a support beam and a floor slab, wherein the floor slab is positioned on the upper surface of the support beam, a column reinforcing component is connected onto the support column, a reinforcing member and a lifting member are connected onto the support beam, the column reinforcing component comprises a cement-based permeable crystalline waterproof layer, a reinforcing steel bar and a galvanized steel plate and is used for reinforcing the support column, and the reinforcing member comprises a connecting plate and a reinforcing plate and is used for supporting the support beamThe lifting piece comprises a lifting rib and a steel sleeve
The lifting device is used for lifting the supporting beam;
the outer wall of each supporting column is fixedly connected with a galvanized steel plate for supporting and reinforcing the supporting column, each galvanized steel plate is an L-shaped plate, each galvanized steel plate is exactly positioned at the corner of each supporting column, the edges of two adjacent galvanized steel plates are abutted, and the abutted parts are fixedly connected; inlay in the support column and be equipped with reinforcing bar, reinforcing bar's both ends all pass galvanized steel sheet, and with galvanized steel sheet fixed connection, galvanized steel sheet is towards a supporting beam's side fixedly connected with connecting plate, be used for right supporting beam's both ends play supporting role, and the connecting plate upwards extends along galvanized steel sheet, and to contacting a supporting beam, again along a supporting beam's lower surface extension, the connecting plate perpendicular to supporting beam's horizontal direction's both ends upwards extend, until with the lower surface butt of floor, and the adjacent position fixed connection of connecting plate, be used for right the connecting plate provides ascending pulling force, right with the guarantor supporting beam's supporting role, the top and the bottom cover of support column are equipped with the steel bushing
The connecting plate is arranged on the steel jacket
The inner side of (a); reinforcing plates are fixedly connected between the connecting plates, the reinforcing plates are positioned on the vertical side surfaces of the supporting beams, and the top ends of the reinforcing plates are abutted against the lower surface of the floor slab; the lower surface of the horizontal part of the connecting plate is fixedly connected with at least one group of limiting columns, the group of limiting columns comprises two limiting columns, the two limiting columns in the same group are located at two ends of the connecting plate along the horizontal direction perpendicular to the supporting beam, the limiting columns in different groups are evenly distributed along the direction parallel to the supporting beam, and the steel sleeve is located above one end of the supporting beam
Fixedly connected with at least one group of lifting ribs, the steelSleeve
The lifting ribs are used for fixing the lifting ribs and enhancing the integrity between the galvanized steel plate and the supporting column, one group of lifting ribs comprises two lifting ribs, the lifting ribs downwards penetrate through the floor slab and downwards cross the supporting beam from one side of the supporting beam, and upwards pass through the steel sleeve above the other end of the supporting beam from the other side of the supporting beam
The lifting ribs are fixedly connected, the lifting ribs are positioned among the group of limiting columns, the two lifting ribs are crossed on the lower surface of the supporting beam, and the lifting ribs provide prestress for the supporting beam;
when load acts on the supporting beam, the load is transferred to the lifting ribs, the tensioned lifting ribs provide upward force for the supporting beam, meanwhile, the reinforcing plate reinforces the supporting beam, and the carbon fiber concrete layer increases the ductility and the strength of the supporting beam; the load is transferred to the supporting columns through the supporting beams, the connecting plates enable the strength of the joints of the supporting beams and the supporting columns to be increased, and the connecting plates extend upwards along two ends perpendicular to the horizontal direction of the supporting beams to wrap the supporting beams, so that the end parts of the supporting beams are not easy to deform and crack; when the support column is used to load, the crack that cement base infiltration crystallization waterproof layer made the support column is repaired, and the gluing layer is connected to galvanized steel sheet and support column together with the reinforcing bar combined action, and the load that the support column received can in time be transmitted to the galvanized steel sheet on, when the gluing layer was ageing, reinforcing bar guaranteed the support column and the galvanized steel sheet between be connected.
By adopting the technical scheme, the galvanized steel plate plays a role in supporting and reinforcing the supporting column, is not easy to rust and has long service life; the reinforcing steel bars reinforce the integrity of the galvanized steel sheet and the supporting columns, the phenomenon that the galvanized steel sheet is stripped from the supporting columns to lose the reinforcing effect is avoided, and the load borne by the supporting columns can be timely transmitted to the galvanized steel sheet, so that the high strength performance of the galvanized steel sheet can be fully exerted, and a better supporting and reinforcing effect is achieved; the connecting plate has the function of supporting two ends of the supporting beam, so that the supporting beam is connected with the supporting columnThe bearing capacity of the joint part is enhanced; the connecting plates are fixedly connected, so that the connecting plates can provide an upward pulling force for the connecting plates, the connecting plates are not easy to deform downwards under the downward pressure of the supporting beams, and the better supporting effect of the connecting plates on the supporting beams is ensured; when the horizontal part of the connecting plate is pressed downwards by the supporting beam, the connecting plate plays a role in lifting the horizontal part of the connecting plate, so that the connecting plate is not easy to droop, and can play a good role in supporting the supporting beam; steel jacket
Plays the role of fixing the lifting tendon and simultaneously the steel jacket
The integrity between the galvanized steel sheet and the support column is further strengthened; the limiting columns have a limiting effect on the lifting ribs, so that the lifting ribs cannot interfere relatively and can be distributed at the bottoms of the supporting beams in a dispersed manner; the taut muscle that carries provides a prestressing force to a supporting beam that carries, improves the bearing capacity of original structure, plays better reinforcing effect to it, has reached the equal comparatively stable effect of reinforcement to support column and a supporting beam.
Preferably, the top end of the galvanized steel sheet is fixedly connected with a plurality of horizontal studs towards the side of the support beam, and the studs penetrate through the connecting plate and are fixedly connected with the connecting plate.
Through adopting above-mentioned technical scheme, the connecting plate makes the tie point add more and distribute comparatively evenly through a double-screw bolt and galvanized steel sheet fixed connection to strengthen the joint strength between connecting plate and the galvanized steel sheet, made the better supporting role to a supporting beam that plays of connecting plate.
Preferably, the intersections of the said tie bars of different sets do not coincide.
By adopting the technical scheme, the lifting ribs of different groups are distributed on the bottom of the supporting beam uniformly, so that the supporting force of the lifting ribs of different groups on the bottom of the supporting beam is uniform, and the lifting effect of the lifting ribs on the supporting beam is better.
Preferably, the steel jacket
Comprising two C-shaped halves
And a plurality of connecting screws, two halves
Is oppositely sleeved outside the support column
The end part of the screw rod extends to the outer side far away from the end part, and the connecting screws respectively penetrate through the two halves
The portion extending to the outside away from itself.
By adopting the technical scheme, the two halves are divided into two halves
The C-shaped opening ends of the two half-bodies are opposite to each other, and the connecting screw is arranged on the two half-bodies
Screwed on the steel sleeve
After the installation, the steel sleeve is made
The connection is convenient.
Preferably, the outer wall of the supporting beam is fixedly connected with a carbon fiber concrete layer, and the lifting rib is embedded in the carbon fiber concrete layer.
By adopting the technical scheme, the carbon fiber concrete has high tensile strength and good toughness, and can play a role in reinforcing the support beam; the carbon fiber concrete layer prevents the lifting ribs from being directly exposed, and the effect of protecting the lifting ribs is achieved.
Preferably, the outer wall of the support column is fixedly connected with a cement-based permeable crystalline waterproof layer, and the cement-based permeable crystalline waterproof layer is positioned between the outer wall of the support column and the galvanized steel plate.
By adopting the technical scheme, the cement-based permeable crystalline waterproof layer has better permeability, is transmitted and filled in concrete micropores and capillaries to form a branch-vine-shaped crystal which is insoluble in water, can repair crack damage in concrete and better fill holes where reinforcing steel bars are located, simultaneously enables the concrete to be more compact, and improves the strength and durability of the concrete; and prevent inside moisture etc. got into the support column, produce the erosion in the support column, be favorable to improving the life of support column.
Preferably, be provided with the gluing layer between galvanized steel sheet and the carbon fiber concrete layer, seted up the glue injection hole on the galvanized steel sheet, also set up the gluing layer between connecting plate and reinforcing plate and the supporting beam.
By adopting the technical scheme, the arrangement of the adhesive layer strengthens the tighter connection between the galvanized steel sheet and the supporting column, so that the connection between the connecting plate and the supporting column and the connection between the reinforcing plate and the supporting beam are tighter, and the integration between the galvanized steel sheet and the supporting column and the integration between the connecting plate and the supporting beam and the integration between the reinforcing plate and the supporting beam are further strengthened; can make degree nature feel the board and connect the back that finishes, rethread injecting glue hole pours into the gluing layer into between galvanized steel sheet and the support column into, has avoided forming earlier welding high temperature behind the gluing layer to cause adverse effect such as ageing with higher speed to the gluing layer.
The invention also provides a reinforced concrete structure reinforcing method, which comprises the following specific steps:
s1: cleaning the plastering layer and the loose defect part on the surfaces of the supporting columns and the supporting beams;
s2: drilling a plurality of uniformly distributed holes on the support column by using an electric drill, penetrating out the reinforcing steel bars from the holes, exposing the end parts of the reinforcing steel bars, and smearing a cement-based permeable crystalline waterproof layer to block the holes and cover the surface of the support column;
s3: welding a stud on the galvanized steel sheet, enabling the galvanized steel sheet to penetrate through the reinforcing steel bar and abut against the outer wall of the carbon fiber concrete layer, bending the reinforcing steel bar, enabling the exposed part of the reinforcing steel bar to abut against the galvanized steel sheet, positioning the galvanized steel sheet by the reinforcing steel bar, welding the reinforcing steel bar and the galvanized steel sheet, and welding the lap joint of the two adjacent galvanized steel sheets;
s4: welding a limiting column on the lower surface of the part, abutted against the lower surface of the support beam, of the connecting plate, respectively coating an adhesive layer on the side surfaces, opposite to the support beam, of the connecting plate, abutting against the galvanized steel plate and the support beam, penetrating the stud through the connecting plate, screwing the nut, and welding the nut and the galvanized steel plate; respectively coating adhesive layers on the opposite side surfaces of the reinforcing plate and the supporting beam, enabling two ends of the reinforcing plate to be abutted against the connecting plate, and welding and connecting the abutted parts;
s5: the top and the bottom of the outer side of the supporting column are respectively and oppositely sleeved with two halves
And the connecting screw is screwed on the outer sides of the galvanized steel sheet and the connecting plate, and the connecting screw and the half part are connected
Welding;
s6: the end part of the lifting rib, the supporting beam and the half part above one end are connected
Welding the inner wall, enabling the lifting rib to downwards pass through a group of limiting columns at one end of the lower surface of the supporting beam, enabling the lifting rib in the same group to be crossed at the lower surface of the supporting beam, then passing through a group of limiting columns at the other end of the supporting beam, and enabling the end part of the lifting rib and the half part above the other end of the supporting beam to pass through
Welding the inner wall, screwing the connecting screw but not screwing, and welding the connecting screw on the steel sleeve
A jack is arranged between the supporting beam and drives the steel sleeve
Sliding upwards to tighten the tie bar and then tightening the connecting screw and connecting the connecting screw to the half
Welding;
s7: fitting the steel jacket
Welding with a galvanized steel sheet;
s8: injecting structural adhesive into the adhesive injection hole;
s9: and coating a carbon fiber concrete layer on the outer wall of the supporting beam.
By adopting the technical scheme, the plastering layer and the loose defect part are cleaned firstly and then the hole is punched, so that the cleaned object is prevented from falling into the hole, the reinforcing steel bar penetrates through the hole, the cement-based permeable crystalline waterproof layer is coated, the plastering layer and the like cannot fall into the hole, the filling effect of the cement-based permeable crystalline waterproof layer on the hole is better, the cement-based permeable crystalline waterproof layer has a better fixing effect on the reinforcing steel bar, and the cement-based permeable crystalline waterproof layer can have better connectivity to the concrete base surface; firstly welding a stud at the top of the galvanized steel sheet, so that when a fixed connecting plate is not installed, the stud is required to be fixed at the top of the installed galvanized steel sheet, the stud is relatively convenient to install, punching is performed on the galvanized steel sheet corresponding to the position of the reinforcing steel bar, two ends of the reinforcing steel bar penetrate through the galvanized steel sheet, the reinforcing steel bar is bent until the exposed part of the reinforcing steel bar is abutted against the outer surface of the galvanized steel sheet, the reinforcing steel bar is welded and connected with the galvanized steel sheet, the integrity of the reinforcing steel bar between the galvanized steel sheets is enhanced, the connection between the galvanized steel sheets and the supporting column is tighter, and meanwhile, the reinforcing steel bar positions the galvanized steel sheet, so that the galvanized steel sheets do not need to be held by hands when being welded, and the process is more convenient; the lower surfaces of the parts, abutted to the lower surfaces of the connecting plates and the supporting beams, of the lower surfaces are welded with limiting columns, the side surfaces, opposite to the connecting plates and the supporting beams, of the connecting plates are respectively coated with adhesive layers, the adhesive layers are favorable for further enhancing the integration of the connecting plates and the supporting beams, so that the supporting beams are better supported, holes are punched in the connecting plates according to the positions of the studs, the studs penetrate through the connecting plates, the nuts are screwed, the nuts are welded with the galvanized steel plates, and the connecting plates and the galvanized steel plates are more stably connected; and (3) respectively coating adhesive layers on the opposite side surfaces of the reinforcing plate and the supporting beam, enabling the top end of the reinforcing plate to be abutted against the lower surface of the floor slab, enabling the two ends of the reinforcing plate to be abutted against the connecting plate, connecting the abutted parts in a welding manner, and enabling the reinforcing plate to play a role in reinforcing the supporting beam, so that the bearing capacity of the supporting beam is enhanced.
Fitting the steel jacket
Respectively fixed to the top ends of the supporting columns, steel sleeves
The integrity between the connecting plate, the galvanized steel plate and the support column is further strengthened, and the steel sleeve is sleeved
Respectively fixed to the top ends of the supporting columns, and welding a set of lifting ribs to the steel sleeve
Inner side of, steel jacket
The lifting and pulling ribs are fixed, then the two lifting and pulling ribs are downwards arranged from two sides of the supporting beam respectively until reaching the lower surface of the supporting beam, then the two lifting and pulling ribs are crossed on the lower surface of the supporting beam and finally penetrate out from the other side of the supporting beam respectively and are sleeved with a steel sleeve positioned at the upper part of the other end of the supporting beam
Is welded to the inner wall of the steel sleeve
The bottom of the jack is placed to ensure that the bottom of the jackThe part is positioned on the upper surface of the supporting beam, at least two jacks are arranged, and the jacks are positioned on different supporting beams, so that the steel sleeve
Can receive the even supporting force of the jack to extend the piston rod of the jack, and the jack drives the steel sleeve
Move upwards so that the steel jacket
Driving one end of the lifting bar to move upwards until the lifting bar is tensioned, then screwing down the connecting screw, and connecting the connecting screw with the half part
Welding ensures that the connecting screw pair is divided into two halves
Fixing the support, retracting the piston rod of the jack, taking away the jack, and sleeving the steel sleeve
The galvanized steel sheet is welded, which ensures the steel sleeve
The stability of the connection with the supporting column enables the lifting and pulling rib to be tensioned conveniently, and the construction is easy when the supporting beam is short; structural adhesive is injected into the glue injection hole, so that the connectivity between the galvanized steel sheet and the cement-based permeable crystalline waterproof layer is further enhanced, and the structural adhesive is injected again during welding, so that the influence of high welding temperature on the adhesive layer can be reduced, and the quality of the adhesive layer is ensured; at last, the carbon fiber concrete layer is coated outside the supporting beam, the lifting ribs and the inner part positioned in the carbon fiber concrete layer are enabled to play a role in reinforcing the carbon fiber concrete layer, the strength of the carbon fiber concrete layer is increased, and meanwhile, the carbon fiber concrete layer resistsThe tensile capacity and the ductility are stronger, can play the reinforcing action to a supporting beam, make its intensity and ductility obtain improving, further prevent the harm of adverse environment in the periphery to the concrete simultaneously.
Compared with the prior art, the invention has the following beneficial technical effects:
1. by arranging reinforcing steel bars, galvanized steel plates, connecting plates, limiting columns and steel sleeves
The effect of stabilizing the reinforcement of the support columns and the support beams is achieved by lifting the tie bars;
2. the reinforcing plates are fixedly connected between the connecting plates, and play a role in reinforcing the supporting beam, so that the bearing capacity of the supporting beam is enhanced;
3. be the L shaped plate through setting up the galvanized steel sheet, the galvanized steel sheet just is located the edges and corners position of support column, makes the bearing capacity of galvanized steel sheet strengthen to the reinforcing effect to the support column has been strengthened.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the support post;
FIG. 3 is a schematic view of the construction of the present invention with the carbon fiber concrete layer hidden;
fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
In the figure, 1, floor slab; 2. a support column; 21. a galvanized steel sheet; 211. injecting glue holes; 212. a stud; 22. reinforcing steel bars; 23. a cement-based capillary crystalline waterproof layer; 3. a support beam; 31. a connecting plate; 312. a limiting column; 32. a reinforcing plate; 4. steel jacket
41. Half of
42. A connecting screw; 5. lifting the tie bar; 6. an adhesive layer; 7. carbon fiber concrete layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a coarse denier surface microporous hollow bicomponent fiber and a light warm-keeping waterproof fabric, which are used for solving the problem of poor performance of the traditional tent fabric.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
referring to fig. 1, the reinforced concrete structure and the reinforcing method disclosed by the invention comprise a support pillar 2, a support beam 3 and a floor slab 1, wherein the floor slab 1 is positioned on the upper surface of the support beam 3, the support pillar 2 is connected with a pillar reinforcing component, the support beam 3 is connected with a reinforcing member and a lifting member, the pillar reinforcing component reinforces the support pillar 2, the reinforcing member supports the support beam 3, the lifting member lifts the support beam 3 to generate a certain upward pulling force on the support beam 3, so that the bearing capacity of the support beam 3 is enhanced, and the effect of stabilizing the reinforcement of the support pillar 2 and the support beam 3 is achieved.
Referring to fig. 1 and 2, the column reinforcing assembly includes a cement-based capillary crystalline waterproof layer 23, reinforcing steel bars 22 and galvanized steel sheets 21, the reinforcing steel bars 22 are embedded inside the supporting column 2, the reinforcing steel bars 22 are horizontally arranged in a plurality, the reinforcing steel bars 22 are vertically and uniformly distributed on the supporting column 2, two adjacent reinforcing steel bars 22 in the vertical direction are perpendicular to each other, the cement-based capillary crystalline waterproof layer 23 and the galvanized steel sheets 21 are sequentially connected outwards from the outer wall of the supporting column 2, the cement-based capillary crystalline waterproof layer 23 is fixedly connected with the supporting column 2, two ends of the reinforcing steel bars 22 sequentially penetrate through the cement-based capillary crystalline waterproof layer 23 and the galvanized steel sheets 21, the reinforcing steel bars 22 are fixedly connected with the galvanized steel sheets 21, the galvanized steel sheets 21 are L-shaped, the galvanized steel sheets 21 are just located at the edges of the supporting column 2, the edges of the two adjacent galvanized steel sheets 21 are abutted against each other, and the butt joint is fixed connection, is provided with gluing layer 6 between galvanized steel sheet 21 and the carbon fiber concrete layer 7, has seted up notes gluey hole 211 on the galvanized steel sheet 21. The arrangement of the adhesive layer 6 and the reinforcing steel bars 22 strengthens the connectivity of the galvanized steel sheet 21 and the support column 2, so that the galvanized steel sheet 21 can strengthen the combined action of the reinforcing steel bars 22, and the integrity of the galvanized steel sheet 21 and the support column 2 is strengthened; when the adhesive layer 6 is aged, the reinforcing steel bars 22 prevent the galvanized steel sheet 21 from being stripped from the support column 2 and losing the reinforcing effect, so that the support column 2 can be well reinforced.
Referring to fig. 3, the reinforcing member includes a connecting plate 31 and a reinforcing plate 32, a plurality of horizontal studs 212 are fixedly connected to the top end of the galvanized steel plate 21 facing the side of the supporting beam 3, the studs 212 pass through the connecting plate 31 and are fixedly connected to the connecting plate 31, the connecting plate 31 is an L-shaped plate, the connecting plate 31 is fixedly connected to the side of the galvanized steel plate 21 facing the supporting beam 3, and the connecting plate 31 extends upward along the galvanized steel plate 21 until contacting the supporting beam 3 and then extends along the lower surface of the supporting beam 3; two ends of the connecting plate 31, which are perpendicular to the horizontal direction of the supporting beam 3, extend vertically upwards until the two ends are abutted against the lower surface of the floor slab 1, and adjacent parts of the connecting plate 31 are fixedly connected; the reinforcing plate 32 is positioned on the vertical side surface of the supporting beam 3, the top end of the reinforcing plate 32 is abutted against the lower surface of the floor slab 1, two ends of the reinforcing plate 32 are abutted against the connecting plate 31, and the reinforcing plate 32 is fixedly connected with the connecting plate 31; also set up gluing layer 6 between connecting plate 31 and reinforcing plate 32 and the supporting beam 3, gluing layer 6 is the structure and glues the material. The connecting plate 31 plays a certain supporting role for the supporting beam 3, so that the bearing capacity of the supporting beam 3 is enhanced, the fixing plate is connected with the supporting beam 3 through the adhesive layer 6, the integrity is strong, the strength of the supporting beam 3 is increased, and the fixing plate plays a further reinforcing role for the supporting beam 3.
Referring to fig. 3 and 4, the puller includes a puller rib 5 and a steel sleeve
4, steel jacket
4 are sleeved outside the support column 2, and the connecting plate 31 is positioned on the steel sleeve
4, and the top and bottom of the support column 2 are all provided with steel sleeves
4, steel jacket
4 comprising two C-shaped halves
41 and a plurality of connecting screws 42, two halves
41 are oppositely sleeved outside the support column 2 and are half
41 extend outward away from themselves, and connecting screws 42 extend through the two halves
41 extending to the outside away from itself; the vertical setting of spacing post 312, spacing post 312 fixed connection in the lower surface of the horizontal part of connecting plate 31, connecting plate 31 set up two sets of spacing posts 312, and every spacing post 312 of group includes two spacing posts 312, and along the horizontal direction of a perpendicular to supporting beam 3, two spacing posts 312 of same set of are located the both ends of connecting plate 31, along the direction that is on a parallel with supporting beam 3, differentThe limiting columns 312 of the group are uniformly distributed, each supporting beam 3 is provided with two groups of lifting ribs 5, one group of lifting ribs 5 comprises two lifting ribs 5, and one end of each lifting rib 5 is fixedly connected to the steel sleeve
4, then downwards penetrates through the floor slab 1, the two lifting ribs 5 respectively downwards penetrate through the inner sides of the group of limiting columns 312 from different sides of the supporting beam 3, and after the lower surface of the supporting beam 3 is crossed, the two lifting ribs 5 respectively penetrate through the inner sides of the group of limiting columns 312 at the other end of the supporting beam 3 and upwards penetrate through a steel sleeve above the other end of the supporting beam 3
4, each group of the lifting ribs 5 passes through two groups of the limiting columns 312, and a group of the limiting columns 312 is arranged between the two groups of the limiting columns 312, so that the intersection parts of the two groups of the lifting ribs 5 are not overlapped, and can be uniformly distributed below the supporting beam 3, thereby providing uniform lifting force for the supporting beam 3; a supporting beam 3's outer wall fixedly connected with carbon fiber concrete layer 7 carries lacing wire 5 to inlay the inside of locating carbon fiber concrete layer 7, carries lacing wire 5 you and can play the reinforcing effect to carbon fiber concrete layer 7, and carbon fiber concrete layer 7 has strengthened supporting beam 3's ductility and intensity simultaneously. The lifting rib 5 gives a certain upward force to the support beam 3, so that a part of the upward force can be offset from the load applied to the support beam 3, the bearing capacity of the support beam 3 is enhanced, and the support beam 3 is reinforced.
Example 2
A reinforced concrete structure reinforcing method comprises the following specific steps:
s1: cleaning the plastering layer and the loose defect part on the surfaces of the supporting columns 2 and the supporting beams 3;
s2: drilling a plurality of uniformly distributed holes in the support column 2 by using an electric drill, penetrating the reinforcing steel bars 22 out of the holes, exposing the end parts of the reinforcing steel bars 22, and smearing a cement-based permeable crystalline waterproof layer 23 to block the holes and cover the surface of the support column 2;
s3: welding studs 212 on the galvanized steel sheets 21, enabling the galvanized steel sheets 21 to penetrate through the reinforcing steel bars 22 and abut against the outer wall of the carbon fiber concrete layer 7, bending the reinforcing steel bars 22, enabling the exposed parts of the reinforcing steel bars 22 to abut against the galvanized steel sheets 21, welding the reinforcing steel bars 22 with the galvanized steel sheets 21, and welding the lap joints of the two adjacent galvanized steel sheets 21;
s4: welding a limiting column 312 on the lower surface of the part, abutted against the lower surface of the support beam 3, of the connecting plate 31, respectively coating an adhesive layer 6 on the side surface of the connecting plate 31 opposite to the support beam 3, abutting the connecting plate 31 against the galvanized steel sheet 21 and the support beam 3, penetrating the stud 212 through the connecting plate 31, screwing a nut, and welding the nut and the galvanized steel sheet 21; respectively coating adhesive layers 6 on the opposite side surfaces of the reinforcing plate 32 and the support beam 3, enabling two ends of the reinforcing plate 32 to be abutted against the connecting plate 31, and welding and connecting the abutted parts;
s5: the top and the bottom of the outer side of the supporting column 2 are respectively and oppositely sleeved with two halves
41, the connection screw 42 is tightened on the outer side of the galvanized steel sheet 21 and the connection plate 31, and the connection screw 42 and the half-plate are connected
41, welding;
s6: the end part of the lifting rib 5, the supporting beam 3 and the half part above one end
41, welding the inner wall of the supporting beam 3, enabling the lifting bar 5 to downwards pass through a group of limiting columns 312 at one end of the lower surface of the supporting beam 3, enabling the lifting bar 5 in the same group to cross the lower surface of the supporting beam 3, then passing through a group of limiting columns 312 at the other end of the supporting beam 3, and enabling the end part of the lifting bar 5 and the half part above the other end of the supporting beam 3 to pass through
41 the inner wall of which is welded, a connecting screw 42 is screwed but not screwed, and a steel sleeve
4 is placed between the supporting beam 3A jack is arranged and drives the steel sleeve
4 are slid upward so that the lifting bar 5 is tightened, then the coupling screw 42 is tightened and the coupling screw 42 is coupled with the half-body
41, welding;
s7: fitting the steel jacket
4, welding with a galvanized steel sheet 21;
s8: injecting structural adhesive into the adhesive injection hole 211;
s9: and a carbon fiber concrete layer 7 is coated on the outer wall of the supporting beam 3.
The implementation principle of the embodiment is as follows: when a load is acted on a supporting beam 3, the load is transferred to the lifting rib 5, the tensioning lifting rib 5 provides an upward force for the supporting beam 3, the supporting beam 3 is not prone to downward deformation, meanwhile, the reinforcing plate 32 further reinforces the supporting beam 3, the bearing capacity of the supporting beam 3 is enhanced, finally, the carbon fiber concrete layer 7 further increases the ductility and the strength of the supporting beam 3, the triple action jointly reinforces the supporting beam 3, the supporting beam 3 is not prone to damage, and the effect of stabilizing the supporting beam 3 is achieved.
The load is transmitted to the supporting columns 2 through the supporting beams 3, the connecting plates 31 increase the strength of the joints of the supporting beams 3 and the supporting columns 2 at the joints of the supporting beams 3 and the supporting columns 2, the connecting plates 31 support the supporting beams 3, and the connecting plates 31 extend upwards along two ends perpendicular to the horizontal direction of the supporting beams 3 to wrap the supporting beams 3, so that the ends of the supporting beams 3 are not easy to deform and crack.
When the support column 2 is used to the load, at first cement base infiltration crystallization waterproof layer 23's infiltration and crystallization ability, when making the crack of support column 2 obtain the repair, make the concrete more closely knit, the structural strength of reinforced concrete, make the bearing capacity of support column 2 self strengthen, in addition, adhesive layer 6 and reinforcing bar 22 combined action are in the same place galvanized steel sheet 21 and support column 2 are connected to, reinforcing bar 22 has strengthened galvanized steel sheet 21 and support column 2's an organic whole nature, the load that support column 2 received can in time be transmitted on galvanized steel sheet 21, make the higher galvanized steel sheet 21 of intensity undertake more load, thereby play the reinforcing effect to support column 2, when adhesive layer 6 is ageing, reinforcing bar 22 has still guaranteed being connected between support column 2 and the galvanized steel sheet 21, the comparatively stable effect of reinforcement to support column 2 has been reached.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; also, for those skilled in the art, more advanced creation is possible according to the idea of the present invention, and the specific implementation and application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (8)
1. The utility model provides a reinforced concrete structure, includes support column (2), a supporting beam (3) and floor (1), and floor (1) is located the upper surface of a supporting beam (3), its characterized in that: be connected with post reinforcement assembly on support column (2), be connected with the reinforcement and carry on a supporting beam (3) and draw the piece, post reinforcement assembly includes cement base infiltration crystallization waterproof layer (23), reinforcing bar (22) and galvanized steel sheet (21) for play the reinforcement effect to support column (2), the reinforcement includes connecting plate (31) and reinforcing plate (32), be used for playing the supporting role to a supporting beam (3), it includes drawing muscle (5) and steel bushing to carry to draw the piece
(4) The lifting device is used for lifting the supporting beam (3);
the outer wall of each supporting column (2) is fixedly connected with a galvanized steel plate (21) for supporting and reinforcing the supporting column (2), each galvanized steel plate (21) is an L-shaped plate, each galvanized steel plate (21) is exactly positioned at the corner of the supporting column (2), the edges of every two adjacent galvanized steel plates (21) are abutted, and the abutted parts are fixedly connected; reinforcing steel bars (22) are embedded in the supporting columns (2), two ends of each reinforcing steel bar (22) penetrate through the galvanized steel plates (21), andwith galvanized steel sheet (21) fixed connection, galvanized steel sheet (21) are towards side fixedly connected with connecting plate (31) of a supporting beam (3), it is right to be used for supporting role is played at the both ends of a supporting beam (3), and connecting plate (31) upwards extend along galvanized steel sheet (21) until contacting a supporting beam (3), again along the lower surface extension of a supporting beam (3), and connecting plate (31) perpendicular to supporting beam (3)'s the both ends of horizontal direction upwards extend, until the lower surface butt with floor (1), and the adjacent position fixed connection of connecting plate (31), it is right to be used for connecting plate (31) provide ascending pulling force, it is right to guarantee supporting role in a supporting beam (3), the top and the bottom cover of support column (2) are equipped with the steel bushing
(4) The connecting plate (31) is positioned on the steel sleeve
(4) The inner side of (a); reinforcing plates (32) are fixedly connected between the connecting plates (31), the reinforcing plates (32) are positioned on the vertical side surfaces of the supporting beams (3), and the top ends of the reinforcing plates (32) are abutted to the lower surface of the floor slab (1); the lower surface of the horizontal part of the connecting plate (31) is fixedly connected with at least one group of limiting columns (312), the group of limiting columns (312) comprises two, the two limiting columns (312) in the same group are positioned at two ends of the connecting plate (31) along the horizontal direction perpendicular to the supporting beam (3), the limiting columns (312) in different groups are uniformly distributed along the direction parallel to the supporting beam (3), and the steel sleeve positioned above one end of the supporting beam (3) is
(4) At least one group of lifting ribs (5) are fixedly connected with the steel sleeve
(4) The lifting ribs (5) are used for fixing the lifting ribs (5) and integrally reinforcing the galvanized steel plate (21) and the supporting columns (2), one group of lifting ribs (5) comprises two lifting ribs (5), the lifting ribs (5) downwards penetrate through the floor slab (1) and downwards cross the supporting beams (3) from one side of the supporting beams (3) and downwards cross the supporting beams (3) from the other side of the supporting beams (3)Steel jacket above the other end of the upper and support beam (3)
(4) The lifting ribs (5) are fixedly connected and positioned among a group of limiting columns (312), the two lifting ribs (5) are crossed on the lower surface of the supporting beam (3), and the lifting ribs (5) provide prestress for the supporting beam (3);
when load acts on the supporting beam (3), the load is transmitted to the lifting rib (5), the tensioned lifting rib (5) provides upward force for the supporting beam (3), meanwhile, the reinforcing plate (32) reinforces the supporting beam (3), and the carbon fiber concrete layer (7) increases the ductility and strength of the supporting beam (3); the load is transmitted to the supporting columns (2) through the supporting beams (3), the strength of the joints of the supporting beams (3) and the supporting columns (2) is increased by the connecting plates (31), the connecting plates (31) extend upwards along two ends perpendicular to the horizontal direction of the supporting beams (3) to wrap the supporting beams (3), and the ends of the supporting beams (3) are not prone to deformation and cracking; when load is used on the support column (2), the crack of the support column (2) is repaired by the cement-based permeable crystalline waterproof layer (23), the galvanized steel plate (21) and the support column (2) are connected together under the combined action of the adhesive layer (6) and the reinforcing steel bars (22), the load borne by the support column (2) can be timely transmitted to the galvanized steel plate (21), and when the adhesive layer (6) is aged, the reinforcing steel bars (22) ensure the connection between the support column (2) and the galvanized steel plate (21).
2. A reinforced concrete structure according to claim 1, wherein: the top end of the galvanized steel sheet (21) faces the side face of the supporting beam (3) and is fixedly connected with a plurality of horizontal studs (212), and the studs (212) penetrate through the connecting plate (31) and are fixedly connected with the connecting plate (31).
3. A reinforced concrete structure according to claim 1, wherein: the intersections of the said tie-bars (5) of different groups do not coincide.
4. A reinforced concrete structure according to claim 1, wherein: the steel jacket
(4) Comprising two C-shaped halves
(41) And a plurality of connecting screws (42), two halves
(41) Is sleeved outside the support column (2) relatively and is half
(41) The end part of the screw extends to the outer side far away from the end part, and the connecting screws (42) respectively penetrate through the two halves
(41) The portion extending to the outside away from itself.
5. A reinforced concrete structure according to claim 1, wherein: the outer wall fixedly connected with carbon fiber concrete layer (7) of a supporting beam (3), carry lacing wire (5) to inlay the inside of locating carbon fiber concrete layer (7).
6. A reinforced concrete structure according to claim 1, wherein: the outer wall fixedly connected with cement base infiltration crystallization waterproof layer (23) of support column (2), cement base infiltration crystallization waterproof layer (23) are located between the outer wall of support column (2) and galvanized steel sheet (21).
7. A reinforced concrete structure according to claim 1, wherein: be provided with gluing layer (6) between galvanized steel sheet (21) and carbon fiber concrete layer (7), seted up glue injection hole (211) on galvanized steel sheet (21), also set up gluing layer (6) between connecting plate (31) and reinforcing plate (32) and a supporting beam (3).
8. A method of reinforcing a reinforced concrete structure according to claim 1, wherein: the specific method comprises the following steps:
s1: cleaning the plastering layer and the loose defect part on the surfaces of the supporting column (2) and the supporting beam (3);
s2: drilling a plurality of uniformly distributed holes in the support column (2) by using an electric drill, penetrating the reinforcing steel bars (22) out of the holes, exposing the end parts of the reinforcing steel bars (22), and smearing a layer of cement-based permeable crystalline waterproof layer (23) to block the holes and cover the surface of the support column (2);
s3: welding studs (212) on the galvanized steel plates (21), enabling the galvanized steel plates (21) to penetrate through the reinforcing steel bars (22) and abut against the outer wall of the carbon fiber concrete layer (7), bending the reinforcing steel bars (22), enabling the exposed parts of the reinforcing steel bars (22) to abut against the galvanized steel plates (21), positioning the galvanized steel plates (21) by the reinforcing steel bars (22), welding the reinforcing steel bars (22) with the galvanized steel plates (21), and welding the lap joints of the two adjacent galvanized steel plates (21);
s4: welding a limiting column (312) on the lower surface of the part, abutted against the lower surface of the supporting beam (3), of the connecting plate (31), respectively coating an adhesive layer (6) on the side surface, opposite to the supporting beam (3), of the connecting plate (31), abutting against the galvanized steel plate (21) and the supporting beam (3), enabling the stud (212) to penetrate through the connecting plate (31), screwing a nut, and welding the nut and the galvanized steel plate (21); respectively coating adhesive layers (6) on the opposite side surfaces of the reinforcing plate (32) and the supporting beam (3), enabling two ends of the reinforcing plate (32) to be abutted against the connecting plate (31), and welding and connecting the abutted parts;
s5: the top and the bottom of the outer side of the supporting column (2) are respectively and oppositely sleeved with two halves
(41) And a connecting screw (42) is screwed on the outer side of the galvanized steel sheet (21) and the connecting plate (31), and the connecting screw (42) is connected with the half
(41) Welding;
s6: the end part of the lifting tendon (5), the supporting beam (3) and the half part above one end
(41) Welding the inner wall, enabling the lifting ribs (5) to downwards penetrate through a group of limiting columns (312) at one end of the lower surface of the supporting beam (3), enabling the lifting ribs (5) in the same group to be crossed on the lower surface of the supporting beam (3), penetrating through a group of limiting columns (312) at the other end of the supporting beam (3), and enabling the end parts of the lifting ribs (5) and the half part above the other end of the supporting beam (3)
(41) The inner wall is welded, a connecting screw (42) is screwed but not screwed, and a steel sleeve is arranged
(4) A jack is arranged between the supporting beam (3) and drives the steel sleeve
(4) Sliding upwards, so that the lifting rib (5) is tensioned, then tightening the connecting screw (42) and connecting the connecting screw (42) with the half-part
(41) Welding;
s7: fitting the steel jacket
(4) Welding with a galvanized steel sheet (21);
s8: structural adhesive is injected into the adhesive injection holes (211);
s9: and a carbon fiber concrete layer (7) is smeared on the outer wall of the supporting beam (3).
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| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
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