CN210713925U - Reinforced structure based on frame core section of thick bamboo rearmounted steel construction - Google Patents
Reinforced structure based on frame core section of thick bamboo rearmounted steel construction Download PDFInfo
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- CN210713925U CN210713925U CN201921397783.6U CN201921397783U CN210713925U CN 210713925 U CN210713925 U CN 210713925U CN 201921397783 U CN201921397783 U CN 201921397783U CN 210713925 U CN210713925 U CN 210713925U
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Abstract
The utility model discloses a reinforced structure based on frame core section of thick bamboo rear steel construction, including core section of thick bamboo rear steel construction, steel bar structure and concrete structure, core section of thick bamboo rear steel construction includes core section of thick bamboo steel sheet, steel hoop board, stiffening rib board and shear steel sheet, and steel bar structure includes roof beam reinforcing bar, roof beam waist muscle, roof beam reinforcing bar and roof beam stirrup on the roof beam; the steel bar structure is fixed on the steel support and is embedded in the original beam, and the steel bar structure penetrates through the steel plate hole of the core cylinder steel plate and is embedded in the steel bar embedding hole of the original frame column; and burying the steel bar structure through concrete according to the designed size of the cross section enlarged beam to form a concrete structure. The utility model discloses the fine support that adds the girder for the cross-section that the rearmounted steel construction of frame core section of thick bamboo provides reliable, fine solution beam column node territory anchor and the ductile problem of antidetonation again.
Description
Technical Field
The utility model relates to a building technical field, especially a reinforced structure based on rearmounted steel construction of frame core section of thick bamboo.
Background
The frame core tube rear steel structure is a new node design generated in the upgrading, reconstruction and reinforcement of urban complex buildings, and the node can well connect new and old structural members with a reasonable stress and earthquake-resistant node processing technology. Especially, the connection node of the reinforced concrete beam with the enlarged cross section or the newly poured beam and the original frame column is adopted for processing the frame concrete structure, the steel bars are planted on the original frame concrete column through the steel bars at the end part of the new beam in the past, when the cross section is provided with the girder or the new beam is provided with a small amount of steel bars, but when the steel bars are more densely arranged on the beam, the holes for planting the steel bars in the frame column are more, the columns can be damaged in different degrees, and the requirement of the seismic design specification cannot be met. The other traditional solution is to add a reinforced concrete column cap to extend the anchoring length of the reinforcing steel bar outwards to enhance the anti-seismic performance of the node, but the post-placed poured concrete is difficult to combine with new and old concrete, and the overall effect of the node area is not ideal.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, a reinforced structure based on rearmounted steel construction of frame core section of thick bamboo is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a reinforced structure based on a frame core tube rear steel structure comprises a core tube rear steel structure, a steel bar structure and a concrete structure, wherein the core tube rear steel structure comprises a core tube steel plate, steel hoop plates, stiffening rib plates and shear steel plates, the core tube steel plate is enclosed on the surface of an original frame column, the enclosing position is positioned at the node of a new beam column below the original beam, the core tube steel plate is hooped and fixed on the original frame column through the vertically arranged steel hoop plates, the contact surface between the core tube steel plate and the original frame column is injected with glue through pressure and is cured, the shear steel plates are fixed on the inner wall of the core tube steel plate and are embedded into shear grooves on the surface of the original frame column, the stiffening rib plates are fixed on the outer wall of the core tube steel plate, and the steel hoop plates and the stiffening rib plates are fixed to form a steel support; the steel bar structure is fixed on the steel support and is embedded in the original beam, and the steel bar structure penetrates through the steel plate hole of the core cylinder steel plate and is embedded in the steel bar embedding hole of the original frame column; and burying the steel bar structure through concrete according to the designed size of the cross section enlarged beam to form a concrete structure.
In the technical scheme, the shear steel plates and the stiffening rib plates are fixed on the core tube steel plates in a welding mode that the quality grade of welding seams is not lower than two levels.
In the technical scheme, the core tube steel plates which are enclosed on the surface of the original frame column are combined and fixed in a welding mode.
In the technical scheme, the core tube steel plate with three surfaces welded in advance and the core tube steel plate with one surface welded in site are combined and fixed.
Among the above-mentioned technical scheme, steel bar structure includes reinforcing bar, roof beam waist muscle, reinforcing bar and roof beam stirrup under the roof beam, and the reinforcing bar comprises the middle reinforcing bar of one row and the roof beam angle muscle that is located middle reinforcing bar both sides under the roof beam, and middle reinforcing bar and steel support welded fastening, the roof beam angle muscle plant the muscle in planting the muscle hole of former frame post, and the reinforcing bar is planted in planting the muscle hole of former roof beam in roof beam waist muscle and the roof beam reinforcing bar.
In the technical scheme, the plurality of shear steel plates are arranged around the inner wall of the core tube steel plate which is enclosed around the original frame column and are meshed with the plurality of shear grooves which are arranged around the original frame column.
The utility model has the advantages that:
1) the overall structure is simple, the reliability is high, a rear steel structure of the frame core barrel provides a reliable support for the cross section and the crossbeam, and the problems of beam-column node area anchoring and seismic ductility are solved well.
2) The core tube rear steel structure comprises a core tube steel plate, a steel hoop plate, a stiffening rib plate and a shear steel plate and can provide a reliable steel supporting structure, the steel bar structure comprises a beam upper steel bar, a beam waist bar, a beam lower steel bar and a beam hoop bar, the steel bar structure and the core tube rear steel structure are integrally welded and fixed to form a common synergetic stress, and the position section and the crossbeam provide a reliable support.
3) The reinforcing method adopts the scheme of dry operation construction and prefabricated parts in factories to realize modern assembly type construction, the amount of embedded steel bars in the joint area of the beam column is small, and the damage to the original structure tissue is effectively reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the reinforcing structure of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of B-B of FIG. 1;
FIG. 4 is a flow chart illustrating the steps of the reinforcement method of the present invention;
fig. 5 is a flowchart illustrating steps of an embodiment of the reinforcement method of the present invention.
In the figure, 1, a core tube steel plate; 2. a steel hoop plate; 3. a stiffening rib plate; 4. shear resistant steel plates; 5. original frame columns; 6. original beam; 7. reinforcing steel bars on the beams; 8. a beam waist rib; 9. reinforcing steel bars under the beams; 10. a beam stirrup; 11. middle steel bars; 12. a beam corner rib; 13. and a cross section is added with a beam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, a reinforced structure based on a frame core tube rear steel structure comprises a core tube rear steel structure, a steel bar structure and a concrete structure, wherein the core tube rear steel structure comprises a core tube steel plate 1, a steel hoop plate 2, a stiffening rib plate 3 and a shear steel plate 4, the core tube steel plate 1 is enclosed on the surface of an original frame column 5, the enclosed position is located at a node of the new beam column below an original beam 6, the core tube steel plate 1 is hooped and fixed on the original frame column 5 through the vertically arranged steel hoop plates 2, a contact surface between the core tube steel plate 1 and the original frame column 5 is injected with glue through pressure and is solidified, the shear steel plate 4 is fixed on the inner wall of the core tube steel plate 1 and is embedded into a shear groove on the surface of the original frame column 5, the stiffening rib plate 3 is fixed on the outer wall of the core tube steel plate 1, and the steel hoop plate 2 and the stiffening rib plate 3 are fixed to form a steel support; the steel bar structure is fixed on the steel support and is embedded with steel bars in the original beam 6 and is embedded with steel bars in the steel bar embedding holes of the original frame column 5 after penetrating through the steel plate holes of the core tube steel plate 1; the reinforcing steel bar structure is buried through concrete to form a concrete structure according to the design size of the cross-section reinforcement beam 13. In this embodiment, the steel hoop plate 2 is divided into three layers, namely, an upper layer, a middle layer and a lower layer, the upper end and the lower end of the stiffening rib plate 3 are respectively welded and fixed with the steel hoop plate 2 of the middle layer and the lower layer, and the stiffening rib plate 3 has a structure with a wide upper part and a narrow lower part.
The shear steel plates 4 and the stiffening rib plates 3 are fixed on the core tube steel plates 1 in a welding mode that the quality grade of welding seams is not lower than two levels. And selecting proper welding seam quality grade according to operation and stress requirements, optimizing the balance between cost and reinforcement quality, and improving the reinforcement effect.
As shown in fig. 2, the core tube steel plates 1 enclosed on the surface of the original frame column 5 are combined and fixed by welding. In this embodiment, the core tube steel plate 1 with three surfaces welded in advance and the core tube steel plate 1 with one surface welded in situ are combined and fixed. The core tube steel plate 1 with three surfaces welded in advance forms a U-shaped component, can be processed and manufactured in a factory, is convenient to install on site, and the sealing component formed by the core tube steel plates 1 with four surfaces becomes a coordinately stressed whole, so that the reinforcing effect is improved.
As shown in fig. 1-3, the steel bar structure includes reinforcing bar 7 on the roof beam, roof beam waist muscle 8, reinforcing bar 9 and roof beam stirrup 10 under the roof beam, reinforcing bar 9 comprises middle reinforcing bar 11 of one row and the roof beam angle muscle 12 that is located middle reinforcing bar 11 both sides under the roof beam, middle reinforcing bar 11 and steel support welded fastening, and the 12 bar planting of roof beam angle muscle is in the planting muscle hole of former frame post 5, and 7 bar planting of roof beam waist muscle 8 and roof beam on the reinforcing bar are in the planting muscle hole of former roof beam 6. Steel bar structure and steel support welded fastening can be a whole with steel bar structure and the welding of the rearmounted steel construction of core section of thick bamboo for both are in coordination with the atress, improve and consolidate the effect.
As shown in fig. 2, a plurality of shear steel plates 4 are arranged around the inner wall of the core tube steel plate 1 surrounding the original frame column 5, and are engaged with a plurality of shear grooves surrounding the original frame column 5. The shear-resistant steel plate 4 is meshed with the shear-resistant groove, so that the rear steel structure of the core barrel is firmer, and the reinforcing effect is improved.
In the embodiment shown in fig. 3-4, the reinforcement method applied to the reinforcement structure based on the frame core tube rear steel structure mainly includes the following steps: paying off a positioning line of a positioning section enlarging beam on the frame column at the joint of the new beam column;
s1, opening shear resistant grooves corresponding to the shear resistant steel plates 4 and bar planting holes corresponding to the beam angle bars 12 on the original frame column 5 according to design requirements, then cleaning dust on the surface of the original frame column 5, and cleaning by using acetone; according to design requirements, rib planting holes corresponding to the beam waist ribs 8 and the beam upper steel ribs 7 are formed in the original beam 6; steel plate holes corresponding to the beam angle ribs 12 are formed in the core tube steel plate 1 according to design requirements;
s2, installing and welding and fixing the core tube steel plates 1 around the original frame column 5 at the joint of the new beam column, and correspondingly embedding each shear-resistant steel plate 4 into a shear-resistant groove during installation; welding and fixing the steel hoop plate 2, the stiffening rib plate 3 and the core tube steel plate 1, wherein the steel hoop plate 2 and the stiffening rib plate 3 form a steel support;
s3, welding the middle steel bar 11 of the steel bar 9 under the beam in the steel bar structure to the steel support;
s4, planting bars in the beam corner steel bars in the steel bar structure in the original frame column 5 correspondingly in the bar planting holes and the steel plate holes;
s5, injecting glue under pressure on the contact surface between the core tube steel plate 1 and the original frame column 5 and curing;
and S6, after the glue is solidified, pouring concrete of the cross section reinforcing beam 13 according to the setting.
In the embodiment shown in fig. 4, after the step S2, the surface of the original beam 6 is roughened and coated with the interface agent, and after the beam bottom template is set up, the step S3 is performed. The reason for chiseling is mainly to chiseling floating slurry on the surface of concrete, so that the concrete at the new and old joints is compact and firm in combination. The interfacial agent, also called as a reinforcing agent, is a necessary process for treating the base layer.
In this embodiment as shown in fig. 4, in step S6, after the glue is cured, the beam waist bar 8 and the beam stirrup 10 are bound, and after the steel bars are bound in place, the beam-side vertical formwork is erected, and then the cross-section reinforcement beam 13 is concreted. The binding mode of the steel bar structure is according to the conventional construction method, and the details are not repeated herein.
In the present embodiment as shown in fig. 4, in the step 2, three core tube steel plates 1 are welded to each other to form a U-shaped member, and are first installed and located on the original frame column 5, and then another core tube steel plate 1 is welded to the U-shaped member.
The above embodiments are merely illustrative and not restrictive, and all equivalent changes and modifications made by the methods described in the claims are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a reinforced structure based on rearmounted steel construction of frame core section of thick bamboo which characterized in that: the steel structure comprises a core tube rear steel structure, a steel bar structure and a concrete structure, wherein the core tube rear steel structure comprises a core tube steel plate, steel hoop plates, stiffening rib plates and shear steel plates, the core tube steel plate is enclosed on the surface of an original frame column, the enclosed position is positioned at the joint of a new beam column below the original beam, the core tube steel plate is hooped and fixed on the original frame column through the steel hoop plates arranged up and down, the contact surface between the core tube steel plate and the original frame column is injected with glue through pressure and is solidified, the shear steel plates are fixed on the inner wall of the core tube steel plate and are embedded into shear grooves on the surface of the original frame column, the stiffening rib plates are fixed on the outer wall of the core tube steel plate, and the steel hoop plates and the stiffening rib plates are fixed to form; the steel bar structure is fixed on the steel support and is embedded in the original beam, and the steel bar structure penetrates through the steel plate hole of the core cylinder steel plate and is embedded in the steel bar embedding hole of the original frame column; and burying the steel bar structure through concrete according to the designed size of the cross section enlarged beam to form a concrete structure.
2. The reinforced structure based on the frame core tube rear steel structure of claim 1, wherein: the shear steel plate and the stiffening rib plate are fixed on the core tube steel plate in a welding mode that the quality grade of a welding seam is not lower than two grades.
3. The reinforced structure based on the frame core tube rear steel structure of claim 1, wherein: and the core tube steel plates which are enclosed on the surface of the original frame column are combined and fixed in a welding mode.
4. The reinforcing structure based on the frame core tube rear steel structure of claim 3, wherein: the three surfaces of the core tube steel plate which are welded in advance and the one surface of the core tube steel plate which is welded in site are combined and fixed.
5. The reinforced structure based on the frame core tube rear steel structure of claim 1, wherein: the steel bar structure comprises a beam upper steel bar, a beam waist steel bar, a beam lower steel bar and a beam stirrup, wherein the beam lower steel bar comprises a row of middle steel bars and beam corner steel bars located on two sides of the middle steel bars, the middle steel bars are welded and fixed with steel supports, the beam corner steel bars are planted in the steel planting holes of the original frame columns, and the beam waist steel bar and the beam upper steel bar are planted in the steel planting holes of the original beams.
6. The reinforced structure based on the frame core tube rear steel structure of claim 1, wherein: the plurality of shear steel plates are arranged around the inner wall of the core tube steel plate which is enclosed around the original frame column and are meshed with the plurality of shear grooves which are arranged around the original frame column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397783.6U CN210713925U (en) | 2019-08-27 | 2019-08-27 | Reinforced structure based on frame core section of thick bamboo rearmounted steel construction |
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| CN201921397783.6U CN210713925U (en) | 2019-08-27 | 2019-08-27 | Reinforced structure based on frame core section of thick bamboo rearmounted steel construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409862A (en) * | 2019-08-27 | 2019-11-05 | 广东中青建筑科技有限公司 | A kind of ruggedized construction and reinforcement means based on frame Core Walls Structure postposition steel construction |
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2019
- 2019-08-27 CN CN201921397783.6U patent/CN210713925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409862A (en) * | 2019-08-27 | 2019-11-05 | 广东中青建筑科技有限公司 | A kind of ruggedized construction and reinforcement means based on frame Core Walls Structure postposition steel construction |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A reinforcement structure based on steel structure with frame core tube behind Effective date of registration: 20210127 Granted publication date: 20200609 Pledgee: Dongguan branch of Bank of Dongguan Co.,Ltd. Pledgor: GUANGDONG ZHONGQING CONSTRUCTION TECHNOLOGY Co.,Ltd. Registration number: Y2021980000777 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |