CN113006518A - Steel plate-concrete combined reinforcing structure and construction method thereof - Google Patents
Steel plate-concrete combined reinforcing structure and construction method thereof Download PDFInfo
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- CN113006518A CN113006518A CN202110283672.8A CN202110283672A CN113006518A CN 113006518 A CN113006518 A CN 113006518A CN 202110283672 A CN202110283672 A CN 202110283672A CN 113006518 A CN113006518 A CN 113006518A
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- steel plate
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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
- 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
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
Abstract
The invention relates to a steel plate-concrete combined reinforcing structure and a construction method thereof, which are used for reinforcing the existing concrete and comprise a reinforcing steel plate, a bent rib plate, a through reinforcing steel bar, a steel bar planting and a grouting material; the bending rib plates are welded on one side of the reinforced steel plate, and rib holes are arranged on the bending rib plates; the penetrating steel bar penetrates through a rib hole of the bending rib plate, and the head of the penetrating steel bar is welded on the reinforcing steel plate; the embedded steel bars are embedded into the existing concrete, and T-shaped screw caps are screwed on the embedded steel bars; the T-shaped nut hooks the penetrating steel bar; the grouting material is poured between the reinforcing steel plate and the existing concrete, so that the reinforcing steel plate, the grouting material and the existing concrete are combined. The invention can improve the strength of the joint surface and the stability of the steel plate so as to exert the bearing capacity of the steel plate to the maximum extent.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a concrete reinforced structure and a construction method thereof, in particular to a steel plate-concrete combined reinforced structure, and belongs to the technical field of concrete structure reinforcement.
[ background of the invention ]
At present, common concrete structures (such as bridges, structural beams and the like) are reinforced mainly by a carbon fiber adhering method, a steel plate adhering method, a cross section enlarging method, a prestress reinforcing method, a steel plate-concrete combined structure method and the like. Compared with other reinforcing methods, the steel plate-concrete combined structure method has the advantages of large bearing capacity improvement proportion, good structural rigidity and ductility and the like, and is suitable for bridge structure reinforcing engineering with higher reinforcing requirements. However, the reinforcing method has higher requirements on the strength of the bonding surface and the anti-buckling capacity of the steel plate than other reinforcing methods, and has great technical treatment difficulty.
Therefore, in order to solve the above technical problems, it is necessary to provide an innovative concrete reinforcing structure and a construction method thereof to overcome the above-mentioned drawbacks of the prior art.
[ summary of the invention ]
In order to solve the above problems, an object of the present invention is to provide a steel plate-concrete combined reinforcement structure which can improve the strength of a joint surface and improve the stability of a steel plate to maximize the load-bearing capacity of the steel plate.
The invention also aims to provide a construction method of the concrete reinforcing structure.
In order to achieve the first object, the invention adopts the technical scheme that: a steel plate-concrete combined reinforcing structure is used for reinforcing existing concrete and comprises a reinforcing steel plate, a bent rib plate, a through reinforcing steel bar, a planting bar and grouting material; the bending rib plates are welded on one side of the reinforced steel plate, and rib holes are arranged on the bending rib plates; the penetrating steel bar penetrates through a rib hole of the bending rib plate, and the head of the penetrating steel bar is welded on the reinforcing steel plate; the embedded steel bars are embedded into the existing concrete, and T-shaped screw caps are screwed on the embedded steel bars; the T-shaped nut hooks the penetrating steel bar; the grouting material is poured between the reinforcing steel plate and the existing concrete, so that the reinforcing steel plate, the grouting material and the existing concrete are combined.
The steel plate-concrete combined reinforced structure is further provided with the following components: the bending rib plates are bent at 120 degrees, and rib holes are arranged on the bending rib plates at intervals of 0.2 m; the through reinforcing steel bars are arranged at intervals of 0.4m, so that a rib hole is formed between every two adjacent through reinforcing steel bars; the grouting material flows through the ribbed holes.
The steel plate-concrete combined reinforced structure is further provided with the following components: the penetrating steel bars on the bottom surface and the side surface of the existing concrete are arranged in a staggered mode.
The steel plate-concrete combined reinforcing structure is also provided with the following components: the depth of the embedded steel bars implanted into the existing concrete is not less than 50 cm.
In order to achieve the second object, the invention adopts the technical scheme that: a construction method of a steel plate-concrete combined reinforced structure comprises the following process steps:
step 1: roughening the surface of the existing concrete;
step 2: implanting a planting bar with a T-shaped nut into the drilled hole, and injecting holes with structural glue for fixing;
and step 3: the reinforcing steel plate is welded with a bending ribbed plate with holes, and the penetrating steel bar penetrates into the ribbed hole and is welded and fixed;
and 4, step 4: the ribbed reinforced steel plate is assembled on the surface of existing concrete, and a T-shaped nut with embedded bars is crossed with a through steel bar to form a hook-sleeve relationship;
and 5: one end is closed, and the other end is filled with grouting material;
step 6: and (5) maintaining and carrying out anticorrosion treatment on the reinforced steel plate.
Compared with the prior art, the invention has the following beneficial effects: the steel plate-concrete combined reinforcing structure improves the buckling strength of the reinforcing steel plate and the bonding strength with grouting material through the bent rib plates with the holes and the penetrating steel bars, and replaces the traditional shear nails; the embedded steel bar with the T-shaped screw cap increases the direct bonding strength of the grouting material and the concrete, and further improves the anti-stripping capability between the grouting material and the concrete in relation with the hooking and sleeving of the through steel bar. Finally, the purposes of fully exerting the strength of the reinforced steel plate and improving the ductility of the structure are achieved.
[ description of the drawings ]
Fig. 1 is a perspective view of a steel plate-concrete combined reinforcement structure of the present invention.
Fig. 2 is an exploded view of a steel plate-concrete combined reinforcement structure of the present invention.
Fig. 3 is an installation view of the reinforcing steel plate, the bending rib, and the through reinforcing steel bar in fig. 2.
Fig. 4 is a schematic view of the through-reinforcement, the planting bar, and the T-nut of fig. 2.
[ detailed description ] embodiments
Referring to the attached drawings 1 to 4 in the specification, the invention relates to a steel plate-concrete combined reinforcing structure, which is used for reinforcing existing concrete 3 and comprises a reinforcing steel plate 1, a bent rib plate 4, a through reinforcing steel bar 5, a planting bar 6, a grouting material 2 and the like.
The bending rib plate 4 is welded on one side of the reinforced steel plate 1 to improve the buckling resistance of the reinforced steel plate 1 and avoid the problems of overlarge rigidity of the straight rib and high requirement on a joint surface. The bending rib 4 is provided with a rib hole 41.
The penetrating steel bar 5 penetrates through the rib hole 41 of the bending rib plate 4, and the head of the penetrating steel bar is welded on the reinforcing steel plate 1 so as to enhance the stripping resistance of the reinforcing steel plate 1 and the grouting material 2. The penetrating reinforcing steel bars 5 positioned on the bottom surface and the side surface of the existing concrete 3 are arranged in a staggered mode.
In the present embodiment, the bending rib 4 is bent at 120 °, and the bending degree can be adjusted according to the design requirement. The rib holes 41 are arranged on the bending rib plate 4 at an interval of 0.2 m. The through reinforcing steel bars 5 are arranged at intervals of 0.4m, so that a rib hole 41 is formed between the adjacent through reinforcing steel bars 5. The grouting material 2 flows through the rib holes 41 to reinforce the combination of the bent rib plates 4 and the grouting material 2 and improve the stability of the reinforcing steel plate 1. The bent rib plates 4 improve the longitudinal rigidity contribution of the reinforcing steel plate 1, and the normal contact force of the bent rib plates 4 provides the shear strength between the reinforcing steel plate 1 and the grouting material 2.
The embedded bars 6 are embedded into the existing concrete 3, and T-shaped screw caps 61 are screwed on the embedded bars. Specifically, the embedded bar 6 is provided with threads, and the threads improve the pulling strength of the embedded bar 6 in the existing concrete 3. The T-shaped screw cap 61 improves the connection strength between the embedded bar 6 and the grouting material 2. The T-shaped screw cap 61 hooks the through reinforcing steel bar 5 to further strengthen the connection strength between the existing concrete 3 and the grouting material 2 and the reinforced steel plate 1. In the embodiment, the depth of the embedded steel bars 6 embedded into the existing concrete 3 is not less than 50cm, and the surface of the existing concrete 3 is roughened, so that the tangential shear strength and the normal peel strength between the existing concrete 3 and the grouting material 2 are improved, and the purpose that the grouting material 2 and the reinforcing steel plate 1 bear load together is achieved.
The grouting material 2 is poured between the reinforcing steel plate 1 and the existing concrete 3, so that the reinforcing steel plate 1, the grouting material 2 and the existing concrete 3 are combined, and the load transfer capacity between new and old structures is improved.
The construction method of the steel plate-concrete combined reinforced structure comprises the following steps:
step 1: roughening the surface of the existing concrete 3;
step 2: the embedded bar 6 with the T-shaped screw cap 61 is embedded in the drilled hole and fixed by a structural adhesive injection hole;
and step 3: the reinforcing steel plate 1 is welded with a bending ribbed plate 4 with holes, and a penetrating steel bar 5 penetrates into a ribbed hole 41 and is welded and fixed;
and 4, step 4: the ribbed reinforced steel plate 1 is assembled on the surface of the existing concrete 3, and a T-shaped screw cap 61 of a planted bar 6 is crossed with a through bar 5 to form a hook-sleeve relationship;
and 5: one end is closed, and the other end is filled with grouting material 2 (such as epoxy mortar or other grouting materials with high strength and large adhesion);
step 6: and (5) maintaining and carrying out anticorrosive treatment on the reinforced steel plate 1.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (5)
1. The utility model provides a steel sheet-concrete combination reinforced structure, its be used for consolidating existing concrete which characterized in that: the reinforcing steel plate is characterized by comprising a reinforcing steel plate, a bending rib plate, a penetrating steel bar, a planting bar and grouting material; the bending rib plates are welded on one side of the reinforced steel plate, and rib holes are arranged on the bending rib plates; the penetrating steel bar penetrates through a rib hole of the bending rib plate, and the head of the penetrating steel bar is welded on the reinforcing steel plate; the embedded steel bars are embedded into the existing concrete, and T-shaped screw caps are screwed on the embedded steel bars; the T-shaped nut hooks the penetrating steel bar; the grouting material is poured between the reinforcing steel plate and the existing concrete, so that the reinforcing steel plate, the grouting material and the existing concrete are combined.
2. The steel plate-concrete combined reinforcement structure of claim 1, wherein: the bending rib plates are bent at 120 degrees, and rib holes are arranged on the bending rib plates at intervals of 0.2 m; the through reinforcing steel bars are arranged at intervals of 0.4m, so that a rib hole is formed between every two adjacent through reinforcing steel bars; the grouting material flows through the ribbed holes.
3. The steel plate-concrete combined reinforcement structure of claim 1, wherein: the penetrating steel bars on the bottom surface and the side surface of the existing concrete are arranged in a staggered mode.
4. The steel plate-concrete combined reinforcement structure of claim 1, wherein: the depth of the embedded steel bars implanted into the existing concrete is not less than 50 cm.
5. A construction method of a steel plate-concrete combined reinforced structure is characterized by comprising the following steps: the method comprises the following process steps:
step 1: roughening the surface of the existing concrete;
step 2: implanting a planting bar with a T-shaped nut into the drilled hole, and injecting holes with structural glue for fixing;
and step 3: the reinforcing steel plate is welded with a bending ribbed plate with holes, and the penetrating steel bar penetrates into the ribbed hole and is welded and fixed;
and 4, step 4: the ribbed reinforced steel plate is assembled on the surface of existing concrete, and a T-shaped nut with embedded bars is crossed with a through steel bar to form a hook-sleeve relationship;
and 5: one end is closed, and the other end is filled with grouting material;
step 6: and (5) maintaining and carrying out anticorrosion treatment on the reinforced steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110283672.8A CN113006518A (en) | 2021-03-17 | 2021-03-17 | Steel plate-concrete combined reinforcing structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110283672.8A CN113006518A (en) | 2021-03-17 | 2021-03-17 | Steel plate-concrete combined reinforcing structure and construction method thereof |
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| CN113006518A true CN113006518A (en) | 2021-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086457A (en) * | 2021-11-12 | 2022-02-25 | 重庆交通大学 | Reinforced T-shaped beam bridge and reinforcing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877550A (en) * | 2012-10-30 | 2013-01-16 | 河南省交通规划勘察设计院有限责任公司 | Steel-concrete mixing type anti-shearing connecting piece |
| CN105442860A (en) * | 2015-11-16 | 2016-03-30 | 重庆大学 | Method for reinforcing reinforced concrete coupling beam through corrugated steel plate assemblies |
| CN106917469A (en) * | 2017-04-18 | 2017-07-04 | 沈阳理工大学 | Steel plate concrete composite reinforcement reinforced beam anti-fatigue performance structure and method |
| CN208415986U (en) * | 2018-05-04 | 2019-01-22 | 秦山伟业建设集团有限公司 | A kind of steel plate concrete composite reinforcement structure |
| CN109972538A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of steel plate is interior to fill filler material composite reinforcement concrete bridge structure and construction technology |
-
2021
- 2021-03-17 CN CN202110283672.8A patent/CN113006518A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877550A (en) * | 2012-10-30 | 2013-01-16 | 河南省交通规划勘察设计院有限责任公司 | Steel-concrete mixing type anti-shearing connecting piece |
| CN105442860A (en) * | 2015-11-16 | 2016-03-30 | 重庆大学 | Method for reinforcing reinforced concrete coupling beam through corrugated steel plate assemblies |
| CN106917469A (en) * | 2017-04-18 | 2017-07-04 | 沈阳理工大学 | Steel plate concrete composite reinforcement reinforced beam anti-fatigue performance structure and method |
| CN208415986U (en) * | 2018-05-04 | 2019-01-22 | 秦山伟业建设集团有限公司 | A kind of steel plate concrete composite reinforcement structure |
| CN109972538A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of steel plate is interior to fill filler material composite reinforcement concrete bridge structure and construction technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086457A (en) * | 2021-11-12 | 2022-02-25 | 重庆交通大学 | Reinforced T-shaped beam bridge and reinforcing method thereof |
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Application publication date: 20210622 |
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