CN112726428A - Swivel beam closure section structure and construction method thereof - Google Patents
Swivel beam closure section structure and construction method thereof Download PDFInfo
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- CN112726428A CN112726428A CN202011580623.2A CN202011580623A CN112726428A CN 112726428 A CN112726428 A CN 112726428A CN 202011580623 A CN202011580623 A CN 202011580623A CN 112726428 A CN112726428 A CN 112726428A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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Abstract
The application relates to a swivel beam closure section structure and a construction method thereof, which comprises a first swivel beam arranged on one side of an existing road surface, a second swivel beam arranged on the other side of the existing road surface, a first folding section is arranged at one end of the first swivel beam, which is in butt joint with the second swivel beam, a second folding section is arranged at one end of the second swivel beam, which is in butt joint with the first swivel beam, when the first rotating beam and the second rotating beam are butted, the first folding section and the second folding section are mutually clamped, a bottom steel plate is fixedly arranged on the bottom surface of the first rotating beam, a left steel plate is fixedly arranged on one side of the first rotating beam, and a right steel plate is fixedly arranged on one side of the second swivel beam, the first folding section and the second folding section are wrapped by the left steel plate, the right steel plate and the bottom steel plate, and a post-pouring folding section is poured between the first folding section and the second folding section. This application has and need not occupy existing road surface and set up the template support system and pour the effect of the back section of closing up of pouring.
Description
Technical Field
The application relates to the field of swivel beams, in particular to a swivel beam closure section structure and a construction method thereof.
Background
The rotating beam is a bridge constructed by a rotating method. The bridge turning construction refers to a construction method for positioning a bridge structure in place through turning after a bridge structure is manufactured and formed at a non-designed axis position. It can convert the operation over the obstacle into the operation on the shore or near the ground. According to the rotation direction of the bridge structure, it can be divided into a vertical swivel construction method, a horizontal swivel construction method, and a method combining horizontal rotation and vertical rotation, wherein the horizontal rotation method is most applied.
At present, when a turning beam closure section is constructed, a formwork support system needs to be erected on an existing road surface to support a formwork, and the existing road surface is interfered.
In view of the above-mentioned related art, the inventor believes that the formwork support system is erected on the existing road surface to support the formwork, which interferes with the existing road surface.
Disclosure of Invention
In order to solve the technical problem that a formwork support system needs to be erected on an existing road surface when a closure section is constructed, the application provides a swivel beam closure section structure and a construction method thereof.
In a first aspect, the present application provides a twist beam closure section structure, which adopts the following technical scheme:
a swivel beam closure section structure comprises a first swivel beam arranged on one side of an existing road surface and a second swivel beam arranged on the other side of the existing road surface, wherein a first closure section is arranged at one end, butted with the first swivel beam, of the first swivel beam, a second closure section is arranged at one end, butted with the first swivel beam, of the second swivel beam, the first closure section and the second closure section are of an L-shaped structure, the first closure section and the second closure section are clamped with each other when the first swivel beam and the second swivel beam are butted, a bottom steel plate is fixedly arranged on the bottom surface of the first swivel beam, the bottom steel plate extends out of the first swivel beam, a left steel plate is fixedly arranged on one side of the first swivel beam, the left steel plate extends out of the first swivel beam, a right steel plate is fixedly arranged on one side of the second swivel beam, the first closure section and the second closure section are wrapped by the left steel plate, the right steel plate and the bottom steel plate, and fixedly connecting the right steel plate with the first swivel beam, fixedly connecting the left steel plate with the bottom steel plate with the second swivel beam, and pouring a post-pouring closing section between the first closing section and the second closing section.
By adopting the technical scheme, the first folding section and the second folding section are both L-shaped structures, when the first rotating beam and the second rotating beam are in butt joint, the first folding section and the second folding section are embedded into each other, and the folding sections are cast after pouring, so that the first rotating beam and the second rotating beam are connected more firmly; bottom surface steel sheet, left side steel sheet and right side steel sheet close up section parcel with first section and the second of foldeing, can play the effect of template, need not to set up template support system on existing road surface, do not occupy existing road surface to bottom surface steel sheet, left side steel sheet and right side steel sheet can turn roof beam and the second and turn the roof beam and connect into whole, have improved intensity before the structure.
Optionally, the post-pouring closing section is poured by foam concrete.
Through adopting above-mentioned technical scheme, impact force when foam concrete can absorb vibrations prevents the concrete fracture.
Optionally, reinforcing steel bars are reserved on end faces of the first swivel beam, the second swivel beam, the first folding section and the second folding section respectively.
Through adopting above-mentioned technical scheme, the reinforcing bar can improve concrete shear can, the intensity of reinforcing structure.
Optionally, a first steel strand is stretched between the second folding section and the bottom steel plate, and the first steel strand is arranged at the joint of the first folding section and the second swivel beam.
By adopting the technical scheme, the first steel strand enables the bottom steel plate to be connected with the second closure segment more firmly.
Optionally, a second steel strand is stretched between the first folding section and the second folding section, and the second steel strand is arranged at a seam between the first folding section and the second folding section.
By adopting the technical scheme, the first folding section and the second folding section are tensioned by the second steel strand, the combination degree of the first folding section and the second folding section is increased, and the structural strength is enhanced.
Optionally, the bottom steel plate, the left steel plate and the right steel plate are fixed by using chemical anchors.
Through adopting above-mentioned technical scheme, use the fixed bottom surface steel sheet of chemical crab-bolt, left side steel sheet right side steel sheet, fixed mode is simple to it is fixed firm.
Optionally, steel pouring glue is injected between the bottom steel plate, the left steel plate and the right steel plate and between the first rotating beam and the second rotating beam.
Through adopting above-mentioned technical scheme, the steel-filled glue can make bottom surface steel sheet, left side steel sheet and right side steel sheet and first body roof beam and the second body roof beam of turning form wholly, reinforcing structural strength.
In a second aspect, the application provides a construction method for a swivel beam closure section structure, which adopts the following technical scheme:
a construction method of a swivel beam closure segment structure comprises the following steps:
s1, pouring the swivel beam: pouring a first swivel beam on one side of an existing road surface, and pouring a second swivel beam on the other side of the existing road surface;
s2, steel plate wrapping: respectively externally wrapping steel plates at the first folding section and the second folding section;
s3, swivel: the first rotating beam and the second rotating beam are drawn to rotate, so that the first rotating beam and the second rotating beam are in butt joint;
s4, stretching the steel strand: penetrating a first steel strand and a second steel strand for tensioning;
s5, pouring and closing the section after pouring: and pouring a close section after pouring between the first close section and the second close section.
By adopting the technical scheme, the closure section is wrapped by the outer steel plate, a template support system does not need to be erected by occupying the existing road surface when the closure section is cast after pouring, and the first swivel beam and the second swivel beam are connected into a whole by the outer steel plate, so that the structural strength is enhanced; in addition, the construction method is simple to operate, and the construction efficiency can be improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first folding section and the second folding section are both L-shaped structures, when the first rotating beam and the second rotating beam are in butt joint, the first folding section and the second folding section are embedded into each other, and the pouring closing section is poured after pouring, so that the first rotating beam and the second rotating beam are connected more firmly; the bottom steel plate, the left steel plate and the right steel plate wrap the first folding section and the second folding section, so that the effect of a template can be achieved, a template support system does not need to be erected on the existing road surface, the existing road surface is not occupied, the first rotating beam and the second rotating beam can be connected into a whole through the bottom steel plate, the left steel plate and the right steel plate, and the structural strength is improved;
2. the foam concrete can absorb the impact force during vibration and prevent the concrete from cracking;
3. the second steel strand tightens the first folding section and the second folding section, increases the combination degree of the first folding section and the second folding section, and enhances the structural strength.
Drawings
Fig. 1 is a cross-sectional view of the present application.
Fig. 2 is a schematic perspective view of the present application.
Figure 3 is a schematic view of a second swivel beam configuration of the present application.
Description of reference numerals: 1. a first rotor beam; 11. a first closing section; 2. a second swivel beam; 21. a second closure segment; 3. a first steel strand; 4. a second steel strand; 5. post-pouring and closing the section; 6. a left steel plate; 7. a bottom steel plate; 8. and (7) a right steel plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a swivel beam closure section structure. Referring to fig. 1, a swivel beam closure segment structure includes swivel beams respectively disposed at both sides of an existing road surface, a first-poured closure segment disposed at one end of the swivel beam, an outer-clad steel plate, and a second-poured closure segment 5.
The swivel beam comprises a first swivel beam 1 arranged on one side of an existing road surface and a second swivel beam 2 arranged on the other side of the existing road surface, and the first swivel beam 1 and the second swivel beam 2 are cast-in-place continuous beams parallel to the road surface.
The cast-in-place section comprises a first folding section 11 which is integrally cast with the first swivel beam 1, the first folding section 11 is arranged on the end face of the first swivel beam 1, which is butted with the second swivel beam 2, the first folding section 11 is arranged at the bottom of the end face, the first folding section 11 is of an L-shaped structure, and a groove formed between the first folding section 11 and the first swivel beam 1 is opened upwards;
the folding section further comprises a second folding section 21 integrally cast with the second swivel beam 2, the second folding section 21 is arranged on the end face of the second swivel beam 2 in butt joint with the first swivel beam 1, the second folding section 21 is arranged at the top of the end face, the second folding section 21 is of an L-shaped structure, a groove opening formed between the second folding section 21 and the second swivel beam 2 is arranged downwards, and when the first swivel beam 1 and the second swivel beam 2 are in rotary butt joint, the first folding section 11 and the second folding section 21 can be clamped with each other.
Referring to fig. 1 and 2, a bottom steel plate 7 is fixedly arranged on the bottom surface of one end of a first swivel beam 1, which is provided with a first folding section 11, the bottom steel plate 7 extends to form the first swivel beam 1, a left steel plate 6 is welded on one side of the bottom steel plate 7, the left steel plate 6 is fixedly arranged on the side wall of the first swivel beam 1, the left steel plate 6 also extends out of the first swivel beam 1, and the end part of the left steel plate is flush with the bottom steel plate 7.
Referring to fig. 1 and 3, a right steel plate 8 is fixedly arranged on one side of the second swivel beam 2 opposite to the left steel plate 6 fixedly arranged on the first swivel beam 1, and the right steel plate 8 extends out of the second swivel beam 2.
Left side steel sheet 6, bottom surface steel sheet 7 and right side steel sheet 8 all use chemical crab-bolt and turn roof beam fixed connection to still pour into the steel-pouring glue into in the gap between left side steel sheet 6, bottom surface steel sheet 7 and right side steel sheet 8 and the roof beam that turns, the steel-pouring glue makes left side steel sheet 6, bottom surface steel sheet 7 and right side steel sheet 8 and turns the roof beam degree of combining higher.
The first swivel beam 1 and the second swivel beam 2 are in butt joint, a right steel plate 8 and a bottom steel plate 7 are fixedly welded, the part of the left steel plate 6 extending out of the first swivel beam 1 is fixedly connected with the side face of the second swivel beam 2, and the part of the right steel plate 8 extending out of the second swivel beam 2 is fixedly connected with the side face of the first swivel beam 1; the part of the bottom steel plate 7 extending out of the first swivel beam 1 is positioned on the bottom surface of the second swivel beam 2, a hole is formed in the second swivel beam 2, a first steel strand 3 is penetrated to stretch the bottom steel plate 7 and the second swivel beam 2, and the first steel strand 3 is positioned at the joint of the first folding section 11 and the second swivel beam 2; through holes are respectively formed in the first folding section 11 and the second folding section 21, second steel strands 4 penetrate through the through holes to stretch the first folding section 11 and the second folding section 21, the second steel strands 4 are located at the joint of the first folding section 11 and the second folding section 21, and the first steel strands 3 and the second steel strands 4 are used for stretching.
The left steel plate 6, the bottom steel plate 7 and the right steel plate 8 wrap the closure section, the post-pouring closure section 5 is poured at a joint gap between the first swivel beam 1 and the second swivel beam 2, the post-pouring closure section 5 is poured by using foam concrete, and the post-pouring closure section 5 fills the gap to form a whole by connecting the first swivel beam 1 and the second swivel beam 2.
Furthermore, reinforcing steel bars (not shown in the figure) are reserved on the end surfaces of the first swivel beam 1, the first folding section 11, the second swivel beam 2 and the second folding section 21, when the first swivel beam 1 and the second swivel beam 2 are in butt joint, the reserved reinforcing steel bars are in lap joint with each other and are bound, the shearing resistance of the folding sections can be improved through the reinforcing steel bars, and the structural strength of the folding sections is improved.
The implementation principle of a swivel beam closure section structure in the embodiment of the application is as follows: the first folding section 11 and the second folding section 21 are arranged in an L shape, so that the first swivel beam 1 and the second swivel beam 2 can be combined more tightly; the left steel plate 6, the bottom steel plate 7 and the right steel plate 8 wrap the closure section to enable the first swivel beam 1 and the second swivel beam 2 to be combined into a whole, the structural strength is enhanced, the left steel plate 6, the bottom steel plate 7 and the right steel plate 8 can be used as a template for pouring the closure section 5, and a template support system does not need to be erected through tensioning of the first steel strands 3 and the second steel strands 4, so that the construction efficiency is improved.
The embodiment of the application also discloses a construction method of the swivel beam folding section structure. A construction method of a swivel beam closure segment structure comprises the following steps:
s1, pouring the swivel beam: a first swivel beam 1 is poured on one side of an existing road surface, a first folding section 11 is integrally poured and formed at one end of the first swivel beam 1, a second swivel beam 2 is poured on the other side of the first swivel beam 1, and a second folding section 21 is integrally poured and formed at one end of the second swivel beam 2.
S2, steel plate wrapping: a bottom surface steel plate 7 is fixedly arranged on the bottom surface of one end, provided with a first folding section 11, of the first swivel beam 1, the bottom surface steel plate 7 extends out of the first folding section 11, a left side steel plate 6 is fixedly arranged on the side surface of the first swivel beam 1, the left side steel plate 6 extends out of the first swivel beam 1, the end surface of the left side steel plate 6 is flush with the bottom surface steel plate 7, and then the left side steel plate 6 and the bottom surface steel plate 7 are welded; a right steel plate 8 is fixedly arranged on the side face of one end, provided with a second folding section 21, of the second swivel beam 2, the right steel plate 8 extends out of the second swivel beam 2, and the right steel plate 8 is arranged on the opposite side of the left steel plate 6;
s3, swivel: the first swivel beam 1 and the second swivel beam 2 are drawn to swivel, the first swivel beam 1 and the second swivel beam 2 are in butt joint, the right steel plate 8 is welded with the bottom steel plate 7, and the left steel plate 6, the bottom steel plate 7 and the right steel plate 8 form grooves; then, the bottom steel plate 7 is fixed with the bottom of the second swivel beam 2, the left steel plate 6 is fixed with the side of the second swivel beam 2, and the right steel plate 8 is fixed with the side of the first swivel beam 1.
S4, stretching the steel strand: coaxial holes are formed in the second folding section 21 and the bottom surface steel plate 7, then the first steel strand 3 is penetrated and tensioned, the combination degree of the bottom surface steel plate 7 and the second swivel beam 2 is enhanced, then through holes are formed in the first folding section 11 and the second folding section 21, the second steel strand 4 is penetrated and tensioned in the through holes, and the second steel strand 4 enables the first folding section 11 and the second folding section 21 to be combined more tightly.
S5, pouring and closing the section after pouring: and pouring the closing section 5 after pouring foam concrete between the first closing section 11 and the second closing section 21 so as to integrally connect the first swivel beam 1 and the second swivel beam 2.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a turning roof beam closes up segmentation structure which characterized in that: the device comprises a first swivel beam (1) arranged on one side of an existing road surface and a second swivel beam (2) arranged on the other side of the existing road surface, wherein a first folding section (11) is arranged at one end, butted with the first swivel beam (1), of the first swivel beam (1), a second folding section (21) is arranged at one end, butted with the first swivel beam (2), of the second swivel beam (2) and the first swivel beam (1), the first folding section (11) and the second folding section (21) are both L-shaped structures, when the first swivel beam (1) and the second swivel beam (2) are butted, the first folding section (11) and the second folding section (21) are mutually clamped, a bottom steel plate (7) is fixedly arranged on the bottom surface of the first swivel beam (1), the bottom steel plate (7) extends out of the first swivel beam (1), and a left steel plate (6) is fixedly arranged on one side of the first swivel beam (1), left side steel sheet (6) extend first turning roof beam (1), second turning roof beam (2) one side has set firmly right side steel sheet (8), left side steel sheet (6), right side steel sheet (8) and bottom surface steel sheet (7) will first fold up section (11) with second folds up section (21) parcel, and will right side steel sheet (8) with first turning roof beam (1) fixed connection, left side steel sheet (6) with bottom surface steel sheet (7) with second turns roof beam (2) fixed connection, first fold up section (11) with pour the back between second folds up section (21) and closes up section (5).
2. The swivel beam folding section structure according to claim 1, wherein: and the post-pouring closing section (5) is poured by adopting foam concrete.
3. The swivel beam folding section structure according to claim 1, wherein: and reinforcing steel bars are reserved on the end surfaces of the first rotating beam (1), the second rotating beam (2), the first folding section (11) and the second folding section (21) respectively.
4. The swivel beam folding section structure according to claim 1, wherein: the second folds section (21) with first steel strand (3) have been stretched and drawn between bottom surface steel sheet (7), first steel strand (3) set up first folds section (11) with second swivel roof beam (2) piece department.
5. The swivel beam folding section structure according to claim 1, wherein: the second steel strand (4) is stretched between the first folding section (11) and the second folding section (21), and the second steel strand (4) is arranged at the joint of the first folding section (11) and the second folding section (21).
6. The swivel beam folding section structure according to claim 1, wherein: the bottom surface steel plate (7), the left side steel plate (6) and the right side steel plate (8) are fixed by using a chemical anchor bolt.
7. The swivel beam folding section structure according to claim 1, wherein: and steel pouring glue is injected between the bottom steel plate (7), the left steel plate (6) and the right steel plate (8) and the first rotating beam (1) and the second rotating beam (2).
8. A construction method for implementing a swivel beam closure structure according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
s1, pouring the swivel beam: a first swivel beam (1) is poured on one side of an existing road surface, and a second swivel beam (2) is poured on the other side of the existing road surface;
s2, steel plate wrapping: steel plates are respectively coated outside the first folding section (11) and the second folding section (21);
s3, swivel: the first swivel beam (1) and the second swivel beam (2) are dragged to swivel, so that the first swivel beam (1) and the second swivel beam (2) are in butt joint;
s4, stretching the steel strand: the first steel strand (3) and the second steel strand (4) are penetrated for tensioning;
s5, pouring and closing the section after pouring: and pouring the post-closing section (5) between the first closing section (11) and the second closing section (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580623.2A CN112726428A (en) | 2020-12-28 | 2020-12-28 | Swivel beam closure section structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580623.2A CN112726428A (en) | 2020-12-28 | 2020-12-28 | Swivel beam closure section structure and construction method thereof |
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| CN112726428A true CN112726428A (en) | 2021-04-30 |
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| CN202011580623.2A Pending CN112726428A (en) | 2020-12-28 | 2020-12-28 | Swivel beam closure section structure and construction method thereof |
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