CN210122827U - Jacking type steel plate reinforcing structure - Google Patents
Jacking type steel plate reinforcing structure Download PDFInfo
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- CN210122827U CN210122827U CN201920781028.1U CN201920781028U CN210122827U CN 210122827 U CN210122827 U CN 210122827U CN 201920781028 U CN201920781028 U CN 201920781028U CN 210122827 U CN210122827 U CN 210122827U
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Abstract
The utility model discloses a jacking formula steel sheet reinforced structure, include: structural framework, the jacking body, steel sheet, crab-bolt and displacement detection device, wherein, structural framework includes the frame post and by the frame roof beam of frame post support, the jacking body is a plurality ofly, and the interval sets up in the below of frame roof beam for establish prestressing force to the frame roof beam, every jacking body all includes from top to bottom fixed connection's shaped steel roof beam, jack and steel shotcrete in proper order, displacement detection device is fixed in the bottom of frame roof beam for the displacement of striding of monitoring the frame roof beam, the steel sheet is pasted in the bottom and the lateral wall of frame roof beam, and through the crab-bolt anchor. This jacking formula steel sheet reinforced structure, the displacement of striding well that monitors in real time through displacement detection device can play accurate guide effect to the displacement of jack, and then establishes to the frame roof beam and predetermines prestressing force, finally realizes steel sheet and structural framework's collaborative work.
Description
Technical Field
The utility model relates to a structural reinforcement technical field provides a jacking formula steel sheet reinforced structure very much.
Background
The steel plate reinforcing method has the advantages of simple construction, flexible arrangement and capability of obviously improving the structural rigidity and stability. Generally, a steel plate is stuck and anchored at the bottom of a frame beam, and the steel plate bears tensile stress, so that concrete on the lower section is compressed, and the risk of cracking of the concrete can be reduced. However, the reinforced structure belongs to a secondary combined structure, the new and old two-part structures face the problems of secondary stress and cooperative work of the structure, and the bearing capacity of the secondary combined structure is lower than that of a primary integral casting structure due to the influence of the bonding strength of the concrete of the joint surface.
Therefore, it is an urgent need to provide a new jacking steel plate reinforcing structure to realize the cooperative work of the steel plate and the existing structure.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a jacking formula steel sheet reinforced structure to solve the unable problem that realizes steel sheet and existing structure collaborative work of current steel sheet reinforcement method.
The utility model provides a technical scheme is: a jacking-type steel plate reinforcement structure comprising: the structure comprises a structure frame, a plurality of jacking bodies, steel plates, anchor bolts and a displacement detection device, wherein the structure frame comprises frame columns and frame beams supported by the frame columns, the jacking bodies are arranged below the frame beams at intervals, used for building prestress on the frame beam, each jacking body comprises a section steel beam, a jack and a steel support which are fixedly connected from top to bottom in sequence, the steel support is used for supporting a jack, the jack is used for pushing the section steel beam, the displacement detection device is fixed at the bottom of the frame beam, used for monitoring the midspan displacement of the frame beam, the steel plate is adhered to the bottom and the side wall of the frame beam and anchored by an anchor bolt, wherein the steel plate is adhered to the bottom and the side wall of the frame beam when the prestress applied to the frame beam by the jacking body reaches a preset value, the prestress applied to the frame beam by the jacking body is obtained by calculating the midspan displacement detected by the displacement detection device.
Preferably, the jacking bodies are uniformly distributed below the frame beam.
Preferably, the section of the section steel beam is in an I shape.
Preferably, the jack is a 150-ton hydraulic jack, and the section of the steel support is in an open rectangle shape.
Preferably, the section steel beam is fixedly connected with the jack through a high-strength bolt.
More preferably, the thickness of the steel plate is 8-15 mm, and the elastic modulus is more than 200 GPa.
Further preferably, the anchor bolt is an expansion type metal anchor bolt.
Further preferably, the displacement detecting device is a micrometer or a displacement sensor.
More preferably, the displacement detecting means has an accuracy of 0.01 mm.
The utility model provides a jacking formula steel sheet reinforced structure can consolidate the structural framework through the jacking body and steel sheet, wherein, carries out reinforced (rfd) process as follows to the structural framework: the span displacement change of the frame beam is monitored in real time through a displacement detection device fixedly arranged at the bottom of the frame beam, and then the displacement control of a jack is guided, so that the specified prestress is established on the frame beam, when the specified prestress is reached, a steel plate is adhered to the bottom and the side wall of the frame beam and is anchored through an anchor bolt, the reinforcement of the steel plate is realized, when the adhesion of the steel plate and the frame beam reaches the designed strength, the jack is unloaded, so that the section steel beam is separated from the bottom of the frame beam, at the moment, the steel plate bears the tensile load of the structural frame, the tensile load of the concrete lower section of the frame beam is effectively reduced, the concrete cracking of the frame beam is avoided, wherein after the jack is unloaded, a jacking body can be moved away for jacking other structural frames, the displacement detection device monitors the span displacement change of the frame beam in real time, and in the jacking and unloading processes of the jack, the lifting displacement of the jack can be accurately guided, and the jacking type steel plate reinforcing structure can effectively guarantee the secondary combination cooperative work and the safe operation of the structure.
The utility model provides a jacking formula steel sheet reinforced structure, the displacement of striding in monitoring in real time through displacement detection device can play accurate guide effect to the displacement of jack, and then establishes to the frame roof beam and predetermines prestressing force, finally realizes steel sheet and structural frame's collaborative work.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
fig. 1 is the utility model provides a jacking formula steel sheet reinforced structure's schematic structure.
Detailed Description
The invention will be further explained below with reference to specific embodiments, without limiting the invention.
As shown in fig. 1, the utility model provides a jacking formula steel sheet reinforced structure, include: structural framework, the jacking body, steel sheet 3, crab-bolt 4 and displacement detection device 5, wherein, structural framework includes frame post 11 and the frame roof beam 12 that is supported by frame post 11, the jacking body is a plurality ofly, and the interval sets up in the below of frame roof beam 12 for establish prestressing force to frame roof beam 12, and every jacking body all includes from top to bottom fixed connection's shaped steel roof beam 21, jack 22 and steel shotcrete 23 in proper order, steel shotcrete 23 is used for supporting jack 22, jack 22 is used for promoting shaped steel roof beam 21, displacement detection device 5 is fixed in the bottom of frame roof beam 12 for monitor frame roof beam 12's displacement of striding, steel sheet 3 pastes in the bottom and the lateral wall of frame roof beam 12 to through crab-bolt 4 anchor, wherein, steel sheet 3 is pasted in the bottom and the lateral wall of frame roof beam 12 when the prestressing force that the jacking body applyed to frame roof beam 12 reaches the default, the prestress applied to the frame beam 12 by the jacking body is obtained by calculating the midspan displacement detected by the displacement detection device 5, wherein the calculation method can be realized by adopting the existing method.
This jacking formula steel sheet reinforced structure can consolidate the structural framework through the jacking body and steel sheet, and wherein, carries out reinforced (rfd) process as follows to the structural framework: the span displacement change of the frame beam is monitored in real time through a displacement detection device fixedly arranged at the bottom of the frame beam, and then the displacement control of a jack is guided, so that the specified prestress is established on the frame beam, when the specified prestress is reached, a steel plate is adhered to the bottom and the side wall of the frame beam and is anchored through an anchor bolt, the reinforcement of the steel plate is realized, when the adhesion of the steel plate and the frame beam reaches the designed strength, the jack is unloaded, so that the section steel beam is separated from the bottom of the frame beam, at the moment, the steel plate bears the tensile load of the structural frame, the tensile load of the concrete lower section of the frame beam is effectively reduced, the concrete cracking of the frame beam is avoided, wherein after the jack is unloaded, a jacking body can be moved away for jacking other structural frames, the displacement detection device monitors the span displacement change of the frame beam in real time, and in the jacking and unloading processes of the jack, the lifting displacement of the jack can be accurately guided, and the jacking type steel plate reinforcing structure can effectively guarantee the secondary combination cooperative work and the safe operation of the structure.
As the improvement of the technical scheme, the jacking bodies are uniformly distributed below the frame beam 12.
As an improvement of the technical scheme, the section of the section steel beam 21 is I-shaped, the jack 22 is a 150-ton hydraulic jack, and the section of the steel support 23 is open rectangular.
As an improvement of the technical scheme, the section steel beam 21 is fixedly connected with the jack 22 through a high-strength bolt.
As an improvement of the technical scheme, the thickness of the steel plate 3 is 8-15 mm, and the elastic modulus of the steel plate is more than 200 GPa.
As the improvement of the technical proposal, the anchor bolt 4 is an expansion type metal anchor bolt.
As an improvement of the technical solution, the displacement detecting device 5 is a micrometer or a displacement sensor, and preferably, the precision of the displacement detecting device 5 is 0.01 mm.
The embodiments of the present invention are written in a progressive manner, emphasizing the differences of the various embodiments, and similar parts can be referred to each other.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. Jacking formula steel sheet reinforced structure, its characterized in that includes: structural frame, the jacking body, steel sheet (3), crab-bolt (4) and displacement detection device (5), wherein, structural frame includes frame post (11) and frame roof beam (12) by frame post (11) support, the jacking body is a plurality of, and the interval sets up in the below of frame roof beam (12), is used for setting up prestressing force to frame roof beam (12), and every jacking body all includes shaped steel roof beam (21), jack (22) and steel shotcrete (23) from top to bottom fixed connection in proper order, steel shotcrete (23) are used for supporting jack (22), jack (22) are used for promoting shaped steel roof beam (21), displacement detection device (5) are fixed in the bottom of frame roof beam (12), are used for monitoring the displacement of striding of frame roof beam (12), steel sheet (3) are pasted in the bottom and the lateral wall of frame roof beam (12) to anchor through crab-bolt (4), the steel plate (3) is adhered to the bottom and the side wall of the frame beam (12) when the prestress applied to the frame beam (12) by the jacking body reaches a preset value, and the prestress applied to the frame beam (12) by the jacking body is obtained by calculating the midspan displacement detected by the displacement detection device (5).
2. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the jacking bodies are uniformly distributed below the frame beam (12).
3. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the section of the section steel beam (21) is I-shaped.
4. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the jack (22) is a 150-ton hydraulic jack, and the section of the steel support (23) is in an open rectangle shape.
5. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the section steel beam (21) is fixedly connected with the jack (22) through a high-strength bolt.
6. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the thickness of the steel plate (3) is 8-15 mm, and the elastic modulus of the steel plate is greater than 200 GPa.
7. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the anchor bolt (4) is an expansion type metal anchor bolt.
8. The jacking-type steel plate reinforcing structure as set forth in claim 1, wherein: the displacement detection device (5) is a micrometer or a displacement sensor.
9. The jacking-type steel plate reinforcing structure as set forth in claim 8, wherein: the precision of the displacement detection device (5) is 0.01 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920781028.1U CN210122827U (en) | 2019-05-28 | 2019-05-28 | Jacking type steel plate reinforcing structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920781028.1U CN210122827U (en) | 2019-05-28 | 2019-05-28 | Jacking type steel plate reinforcing structure |
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| CN210122827U true CN210122827U (en) | 2020-03-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677324A (en) * | 2020-06-17 | 2020-09-18 | 广东精特建设工程有限公司 | Construction method for modifying bonded steel plate through structural reinforcement |
| CN111779310A (en) * | 2020-07-24 | 2020-10-16 | 中国建筑第八工程局有限公司 | Piston type formwork support for repairing basement roof concrete from bottom to top |
| CN113622703A (en) * | 2021-08-18 | 2021-11-09 | 中国矿业大学 | Method for reforming and reinforcing prestressed reinforced concrete beam |
| CN113622704A (en) * | 2021-08-18 | 2021-11-09 | 中国矿业大学 | Method for modifying reinforced concrete prestressed frame structure with local beam cutting |
-
2019
- 2019-05-28 CN CN201920781028.1U patent/CN210122827U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677324A (en) * | 2020-06-17 | 2020-09-18 | 广东精特建设工程有限公司 | Construction method for modifying bonded steel plate through structural reinforcement |
| CN111779310A (en) * | 2020-07-24 | 2020-10-16 | 中国建筑第八工程局有限公司 | Piston type formwork support for repairing basement roof concrete from bottom to top |
| CN113622703A (en) * | 2021-08-18 | 2021-11-09 | 中国矿业大学 | Method for reforming and reinforcing prestressed reinforced concrete beam |
| CN113622704A (en) * | 2021-08-18 | 2021-11-09 | 中国矿业大学 | Method for modifying reinforced concrete prestressed frame structure with local beam cutting |
| CN113622704B (en) * | 2021-08-18 | 2022-04-26 | 中国矿业大学 | Method for modifying reinforced concrete prestressed frame structure with local beam cutting |
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