CN113982303A - Replacement method of reinforced concrete column - Google Patents
Replacement method of reinforced concrete column Download PDFInfo
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- CN113982303A CN113982303A CN202111234859.5A CN202111234859A CN113982303A CN 113982303 A CN113982303 A CN 113982303A CN 202111234859 A CN202111234859 A CN 202111234859A CN 113982303 A CN113982303 A CN 113982303A
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- reinforced concrete
- concrete column
- template
- concrete
- reinforcing 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
Abstract
The invention relates to the technical field of constructional engineering, in particular to a replacement method of a reinforced concrete column, which utilizes the self structure of the reinforced concrete column and combines a specific first force transmission component, a specific first reinforcing plate, a specific second reinforcing plate and a specific second force transmission component to form an unloading bearing support system; then local abolishing, formwork, concreting can accomplish the replacement, easy operation, and on-the-spot convenient assembling, installation cycle is shorter to can reuse, work efficiency is higher.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a replacement method of a reinforced concrete column.
Background
The concrete material is widely applied to civil and industrial buildings, the compression resistance of the material is good, but the composite material is strict in manufacturing and construction processes, and particularly the strength belongs to nonlinearity. According to practical experience summary of reinforcement engineering for many years, some engineering projects have problems in raw materials, mixing ratio, construction process and construction management due to concrete. The concrete material belt problem is applied to engineering projects, and once the strength problem is found to affect the structural safety, remedial measures for the concrete strength are taken.
Under the condition that the concrete column cannot be reinforced, partial concrete with problems in the reinforced concrete column needs to be replaced, an unloading bearing support system needs to be arranged for replacement, the traditional support system adopts steel pipe support, steel pipes are cut and welded on site, the carrying is heavy, the cutting and welding quality on site is not easy to control, and after the replacement of the partial concrete column is finished, most steel pipes are scrapped due to cutting and welding, and the traditional steel pipe support is not in accordance with the building direction of 'four sections and one environment protection'.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a replacement method of a reinforced concrete column, which utilizes the self structure of the reinforced concrete column and combines a specific first force transmission component, a first reinforcing plate, a second reinforcing plate and a second force transmission component to form an unloading bearing support system; then local breaking, formwork erecting and concrete pouring are carried out, and replacement can be completed, so that the operation is simple.
The purpose of the invention is realized by the following technical scheme: a replacement method of a reinforced concrete column is used for replacing concrete in a local area of the reinforced concrete column and comprises the following steps:
(R1) carrying out paying-off positioning on the local area concrete to be replaced, and determining the mounting positions of the first force transmission component and the second force transmission component on the two sides of the reinforced concrete column respectively;
(R2) fixedly mounting a first reinforcement plate to the first force transfer member and a second reinforcement plate to the second force transfer member, and then fixedly mounting the first force transfer member and the second force transfer member to both sides of the reinforced concrete column, respectively;
(R3) breaking the local area concrete to be replaced, reserving longitudinal steel bars of the reinforced concrete column, and cleaning to form a broken concrete area;
(R4), formwork enclosing the broken concrete area;
(R5) pouring concrete into the concrete-broken area, curing after solidification, and finishing the concrete replacement of the local area of the reinforced concrete column.
Preferably, in the step (R3), the breaking mode is a static breaking mode; the step (R3) further comprises: and welding at least one stirrup with a longitudinal steel bar of the reinforced concrete column in the concrete breaking area, and performing closed welding on the stirrups.
Preferably, in the step (R4), the step of closing the broken concrete area by a formwork includes: and installing the first template and the second template to enable the broken concrete area to be enclosed among the first reinforcing plate, the first template, the second reinforcing plate and the second template.
Preferably, the first template and the second template are both wood templates.
Preferably, in the step (R4), the step of closing the broken concrete area by a formwork further includes: and the first reinforcing plate, the first template, the second reinforcing plate and the second template are respectively filled with quick-setting cement in gaps between the reinforced concrete columns.
Preferably, in the step (R4), the step of closing the broken concrete area by a formwork further includes: and arranging a pouring concrete port on the first template, and installing a pouring concrete funnel communicated with the pouring concrete port.
Preferably, in the step (R4), the step of closing the broken concrete area by a formwork further includes: and arranging an exhaust port on the second template, and installing an exhaust pipeline communicated with the second template.
Preferably, the first force transmission member and the second force transmission member are both channel steel, and the first reinforcing plate and the second reinforcing plate are both steel plates.
Preferably, in the step (R2), a first shear screw is implanted into one side of the reinforced concrete column, and a first force transmission member is fixedly mounted to one side of the reinforced concrete column by using the first shear screw and a first lock nut in threaded fit with the first shear screw; and implanting a second anti-shear screw rod into the other side of the reinforced concrete column, and fixedly installing a second force transmission component on the other side of the reinforced concrete column by adopting the second anti-shear screw rod and a second locking nut in threaded fit with the second anti-shear screw rod.
Preferably, in the step (R2), the first reinforcing plate is fixedly mounted to the first force transmission member by using a first locking bolt and a third locking nut screw-engaged with the first locking bolt, and the second reinforcing plate is fixedly mounted to the second force transmission member by using a second locking bolt and a fourth locking nut screw-engaged with the second locking bolt.
The invention has the beneficial effects that: according to the replacement method of the reinforced concrete column, the self structure of the reinforced concrete column is utilized, and the specific first force transmission component, the first reinforcing plate, the second reinforcing plate and the second force transmission component are combined to form the unloading bearing support system; then local abolishing, formwork, concreting can accomplish the replacement, easy operation, and on-the-spot convenient assembling, installation cycle is shorter to can reuse, work efficiency is higher.
Drawings
FIG. 1 is a schematic view of a partial structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is another partial schematic of the present invention;
FIG. 4 is a schematic structural view from another perspective of the present invention;
fig. 5 is a sectional view of B-B in fig. 4.
The reference signs are: 1. breaking the concrete area; 2. a reinforced concrete column; 3. a first force transfer member; 4. a second force transfer member; 5. a first reinforcing plate; 6. a second reinforcing plate; 7. a first shear screw; 8. a second shear resistant screw; 9. a first lock nut; 10. a second lock nut; 11. a first locking bolt; 12. a second locking bolt; 13. a third lock nut; 14. a fourth lock nut; 15. hooping; 16. a first template; 17. a second template; 18. pouring a concrete funnel; 19. an exhaust duct.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1 to 5, a method for replacing a reinforced concrete column 2, which is used for replacing concrete in a local area of the reinforced concrete column 2, comprises the following steps:
(R1) carrying out paying-off positioning on the local area concrete to be replaced, and determining the installation positions of the first force transmission component 3 and the second force transmission component 4 on the two sides of the reinforced concrete column 2 respectively;
(R2) fixedly mounting a first reinforcement plate 5 to the first force transfer member 3 and a second reinforcement plate 6 to the second force transfer member 4, and then fixedly mounting the first force transfer member 3 and the second force transfer member 4 to both sides of the reinforced concrete column 2, respectively;
(R3) breaking the local area concrete to be replaced, reserving longitudinal steel bars of the reinforced concrete column 2, and cleaning to form a broken concrete area 1;
(R4), closing the broken concrete area 1 by a formwork;
(R5) pouring concrete into the broken concrete area 1, curing after solidification, and finishing the local area concrete replacement of the reinforced concrete column 2.
According to the replacement method of the reinforced concrete column 2, the self structure of the reinforced concrete column 2 is utilized, and the specific first force transmission component 3, the specific first reinforcing plate 5, the specific second reinforcing plate 6 and the specific second force transmission component 4 are combined to form an unloading bearing support system, compared with the traditional steel pipe support system, the material consumption is less, the scrapping of most steel pipes due to cutting and welding is avoided, and the inconvenience in carrying caused by the use of a large amount of steel pipes is also avoided; then local abolishing, formwork, concreting can accomplish the replacement, easy operation, and on-the-spot convenient assembling, installation cycle is shorter to can reuse, work efficiency is higher. In the step (R5), the poured concrete is micro-expansive concrete, the strength grade is not less than C25, and the strength grade is preferably C25; when the concrete strength reaches 70% of the design strength in the concrete solidification process, the formwork can be dismantled and maintained, and when the strength of newly-poured concrete reaches the design, the first force transmission component 3, the first reinforcing plate 5, the second reinforcing plate 6 and the second force transmission component 4 are dismantled and the concrete is painted.
In this embodiment, in the step (R3), the breaking mode is a static force breaking mode; the step (R3) further comprises: and at least one stirrup 15 is adopted in the concrete breaking area 1 to be welded with the longitudinal steel bars of the reinforced concrete column 2, and the stirrup 15 is welded in a closed manner.
Adopt above-mentioned technical scheme, compare with other abolishing modes, the broken mode of quiet power avoids reinforced concrete column 2 to carry out the too big unloading bearing support system steadiness that leads to of local abolishing in-process vibration range and reduces and cause the safety risk, it can remain reinforced concrete column 2's longitudinal reinforcement completely, so that reinforced concrete column 2 after 2 local replacements of reinforced concrete column still keep integrative, increase closed welded stirrup 15 again, in order to accord with the building structure, avoid the follow-up potential safety hazard that causes.
In this embodiment, the step (R4) of closing the broken concrete area 1 by a formwork includes: the first formwork 16 and the second formwork 17 are installed so that the broken concrete area 1 is enclosed among the first reinforcing plate 5, the first formwork 16, the second reinforcing plate 6 and the second formwork 17.
By adopting the technical scheme, new concrete is poured into the broken concrete area 1 conveniently to complete local replacement.
In the present embodiment, the first template 16 and the second template 17 are both wooden templates.
By adopting the technical scheme, the transportation and the assembly are convenient.
In this embodiment, the step (R4) of closing the broken concrete area 1 by a formwork further includes: and the first reinforcing plate 5, the first template 16, the second reinforcing plate 6 and the second template 17 are respectively filled with quick-setting cement in gaps between the reinforced concrete columns 2.
By adopting the technical scheme, the first reinforcing plate 5, the first template 16, the second reinforcing plate 6 and the second template 17 can be conveniently and rapidly plugged into gaps between the reinforced concrete columns 2, the working efficiency is improved, and material leakage in the subsequent concrete pouring process is prevented.
In this embodiment, the step (R4) of closing the broken concrete area 1 by a formwork further includes: and a pouring concrete port is formed in the first template 16, and a pouring concrete funnel 18 communicated with the pouring concrete port is installed.
By adopting the technical scheme, new concrete can enter the broken concrete area 1 along the pouring concrete funnel 18 and the pouring concrete opening in sequence for filling so as to complete local replacement.
In this embodiment, the step (R4) of closing the broken concrete area 1 by a formwork further includes: an exhaust port is provided to the second formwork 17, and an exhaust duct 19 communicating with the second formwork 17 is installed.
By adopting the technical scheme, air in the concrete area 1 is conveniently exhausted when the concrete is filled in the area, so that local replacement is completed.
In this embodiment, the first force transfer member 3 and the second force transfer member 4 are both channel steel, and the first reinforcement plate 5 and the second reinforcement plate 6 are both steel plates.
Adopt above-mentioned technical scheme to satisfy this bearing uninstallation device's whole bearing strength. Further, the channel steel is designed according to the column bearing capacity, the specification size is not smaller than that of the channel steel 16a, and the optional specification types of the channel steel are 16a, 18a, 20a, 22a, 24a, 27, 30, 33, 36 and 40; the thickness of the steel plate is not less than 10 mm.
In this embodiment, in the step (R2), a first shear screw 7 is implanted into one side of the reinforced concrete column 2, and the first force transmission member 3 is fixedly mounted on one side of the reinforced concrete column 2 by using the first shear screw 7 and a first lock nut 9 in threaded fit with the first shear screw 7; and implanting a second shear resistant screw 8 into the other side of the reinforced concrete column 2, and fixedly installing a second force transmission component 4 on the other side of the reinforced concrete column 2 by adopting the second shear resistant screw 8 and a second locking nut 10 in threaded fit with the second shear resistant screw 8.
Adopt above-mentioned technical scheme to locking first power transmission component 3 and second power transmission component 4 avoids it not hard up, and the dismouting of being convenient for again after the replacement is accomplished is retrieved and is reused, saves the cost. Furthermore, the diameter of the first shear resistant screw 7 and the diameter of the second shear resistant screw 8 are not less than 20mm, and the embedded bar depth is not less than 10D. First hole of stepping down has all been seted up at the both ends of first power transmission component 3, the second hole of stepping down has all been seted up at the both ends of second power transmission component 4, first shear screw 7 runs through first hole of stepping down and implant in reinforced concrete column 2, second shear screw 8 runs through the second hole of stepping down and implant in reinforced concrete column 2.
In this embodiment, in the step (R2), the first reinforcing plate 5 is fixedly mounted to the first force transmission member 3 by using the first locking bolt 11 and the third locking nut 13 threadedly engaged with the first locking bolt 11, and the second reinforcing plate 6 is fixedly mounted to the second force transmission member 4 by using the second locking bolt 12 and the fourth locking nut 14 threadedly engaged with the second locking bolt 12.
Adopt above-mentioned technical scheme to locking first reinforcement plate 5 and second reinforcement plate 6 avoids it not hard up, and the replacement of being convenient for is accomplished back dismouting and is retrieved the reuse again, saves the cost. Further, the specification of the first locking bolt 11 and the specification of the second locking bolt 12 are both not less than M12, i.e. the thickness is not less than 10.8 mm; the third hole of stepping down has been seted up to first power transmission component 3, first reinforcement plate 5 seted up with the fourth hole of stepping down of third hole intercommunication, the fifth hole of stepping down has been seted up to second power transmission component 4, second reinforcement plate 6 set up with the sixth hole of stepping down of fifth hole intercommunication, the screw thread end of first locking bolt 11 runs through in proper order fourth hole of stepping down and third hole of stepping down and with third lock nut 13 threaded connection, the screw thread end of second locking bolt 12 run through in proper order sixth hole of stepping down and fifth hole of stepping down and with fourth lock nut 14 threaded connection.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. A replacement method of a reinforced concrete column is used for replacing concrete in a local area of the reinforced concrete column, and is characterized by comprising the following steps:
(R1) carrying out paying-off positioning on the local area concrete to be replaced, and determining the mounting positions of the first force transmission component and the second force transmission component on the two sides of the reinforced concrete column respectively;
(R2) fixedly mounting a first reinforcement plate to the first force transfer member and a second reinforcement plate to the second force transfer member, and then fixedly mounting the first force transfer member and the second force transfer member to both sides of the reinforced concrete column, respectively;
(R3) breaking the local area concrete to be replaced, reserving longitudinal steel bars of the reinforced concrete column, and cleaning to form a broken concrete area;
(R4), formwork enclosing the broken concrete area;
(R5) pouring concrete into the concrete-broken area, curing after solidification, and finishing the concrete replacement of the local area of the reinforced concrete column.
2. A method of replacing a reinforced concrete column according to claim 1, characterized in that: in the step (R3), the breaking mode is a static breaking mode; the step (R3) further comprises: and welding at least one stirrup with a longitudinal steel bar of the reinforced concrete column in the concrete breaking area, and performing closed welding on the stirrups.
3. A method of replacing a reinforced concrete column according to claim 1, characterized in that: in the step (R4), the step of erecting a formwork to enclose the broken concrete area includes: and installing the first template and the second template to enable the broken concrete area to be enclosed among the first reinforcing plate, the first template, the second reinforcing plate and the second template.
4. A method of replacing a reinforced concrete column according to claim 3, characterized in that: the first template and the second template are both wood templates.
5. A method of replacing a reinforced concrete column according to claim 3, characterized in that: in the step (R4), the step of erecting a formwork to enclose the broken concrete area further includes: and the first reinforcing plate, the first template, the second reinforcing plate and the second template are respectively filled with quick-setting cement in gaps between the reinforced concrete columns.
6. A method of replacing a reinforced concrete column according to claim 3, characterized in that: in the step (R4), the step of erecting a formwork to enclose the broken concrete area further includes: and arranging a pouring concrete port on the first template, and installing a pouring concrete funnel communicated with the pouring concrete port.
7. A method of replacing a reinforced concrete column according to claim 3, characterized in that: in the step (R4), the step of erecting a formwork to enclose the broken concrete area further includes: and arranging an exhaust port on the second template, and installing an exhaust pipeline communicated with the second template.
8. A method of replacing a reinforced concrete column according to claim 1, characterized in that: the first force transmission component and the second force transmission component are both channel steel, and the first reinforcing plate and the second reinforcing plate are both steel plates.
9. A method of replacing a reinforced concrete column according to claim 1, characterized in that: in the step (R2), a first shear screw is implanted into one side of the reinforced concrete column, and a first force transfer member is fixedly mounted to one side of the reinforced concrete column by using the first shear screw and a first lock nut in threaded engagement with the first shear screw; and implanting a second anti-shear screw rod into the other side of the reinforced concrete column, and fixedly installing a second force transmission component on the other side of the reinforced concrete column by adopting the second anti-shear screw rod and a second locking nut in threaded fit with the second anti-shear screw rod.
10. A method of replacing a reinforced concrete column according to claim 1, characterized in that: in the step (R2), a first reinforcing plate is fixedly mounted to the first force transfer member using a first locking bolt and a third locking nut in threaded engagement with the first locking bolt, and a second reinforcing plate is fixedly mounted to the second force transfer member using a second locking bolt and a fourth locking nut in threaded engagement with the second locking bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234859.5A CN113982303A (en) | 2021-10-22 | 2021-10-22 | Replacement method of reinforced concrete column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234859.5A CN113982303A (en) | 2021-10-22 | 2021-10-22 | Replacement method of reinforced concrete column |
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| CN113982303A true CN113982303A (en) | 2022-01-28 |
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| CN202111234859.5A Pending CN113982303A (en) | 2021-10-22 | 2021-10-22 | Replacement method of reinforced concrete column |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075020A (en) * | 2013-02-04 | 2013-05-01 | 广州市胜特建筑科技开发有限公司 | Steel tray supporting force transferring system |
| CN108265996A (en) * | 2017-12-28 | 2018-07-10 | 浙江核力建筑特种技术有限公司 | A kind of masonry structure break wall punch it is pre- top restore construction |
| CN208899906U (en) * | 2018-07-27 | 2019-05-24 | 广东华科大建筑技术开发有限公司 | A kind of large-tonnage concrete column substitution reinforcement structure |
| CN111101726A (en) * | 2018-10-26 | 2020-05-05 | 杭州固力建筑工程有限公司 | Application method of structure underpinning technology in reinforcement engineering |
| CN212224717U (en) * | 2020-03-21 | 2020-12-25 | 广东中森建设工程有限公司 | Bending-resistant reinforcing structure of shear wall |
| CN112593720A (en) * | 2020-06-16 | 2021-04-02 | 山东筑峰建筑工程有限公司 | Shear wall replacement support system and application thereof |
| CN113090067A (en) * | 2021-04-21 | 2021-07-09 | 广州市维众建筑工程有限公司 | Replacement device and replacement method for concrete damaged column |
-
2021
- 2021-10-22 CN CN202111234859.5A patent/CN113982303A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075020A (en) * | 2013-02-04 | 2013-05-01 | 广州市胜特建筑科技开发有限公司 | Steel tray supporting force transferring system |
| CN108265996A (en) * | 2017-12-28 | 2018-07-10 | 浙江核力建筑特种技术有限公司 | A kind of masonry structure break wall punch it is pre- top restore construction |
| CN208899906U (en) * | 2018-07-27 | 2019-05-24 | 广东华科大建筑技术开发有限公司 | A kind of large-tonnage concrete column substitution reinforcement structure |
| CN111101726A (en) * | 2018-10-26 | 2020-05-05 | 杭州固力建筑工程有限公司 | Application method of structure underpinning technology in reinforcement engineering |
| CN212224717U (en) * | 2020-03-21 | 2020-12-25 | 广东中森建设工程有限公司 | Bending-resistant reinforcing structure of shear wall |
| CN112593720A (en) * | 2020-06-16 | 2021-04-02 | 山东筑峰建筑工程有限公司 | Shear wall replacement support system and application thereof |
| CN113090067A (en) * | 2021-04-21 | 2021-07-09 | 广州市维众建筑工程有限公司 | Replacement device and replacement method for concrete damaged column |
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