CN216809610U - Support structure for continuous box girder construction - Google Patents
Support structure for continuous box girder construction Download PDFInfo
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- CN216809610U CN216809610U CN202220246367.1U CN202220246367U CN216809610U CN 216809610 U CN216809610 U CN 216809610U CN 202220246367 U CN202220246367 U CN 202220246367U CN 216809610 U CN216809610 U CN 216809610U
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000009415 formwork Methods 0.000 description 11
- 238000009966 trimming Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a support structure for continuous box girder construction, belonging to the technical field of bridge engineering auxiliary tools; the adjusting component comprises two telescopic ejector rods and is used for adjusting the extension length of the adjusting component in a primary mode; a folding frame is connected between the two ejector rods, and an axis of the folding frame, which is perpendicular to the supporting direction of the adjusting assembly, is connected with a driving rod; under the working state, the driving rod is driven to rotate, and the folding frame deforms along the axis, so that the extension length of the adjusting assembly is adjusted in a secondary mode.
Description
Technical Field
The utility model relates to the technical field of auxiliary tools for bridge engineering, in particular to a support structure for continuous box girder construction.
Background
The box girder is one of middle girders of bridge engineering, the interior is hollow, flanges are arranged on two sides of the upper part, the box girder is divided into a single box and a plurality of boxes, and the box girder with a reinforced concrete structure is divided into a prefabricated box girder and a cast-in-place box girder, wherein the cast-in-place girder is mainly used for the construction of a large continuous bridge;
chinese published patent CN210368647U provides a support structure for a cast-in-place box beam formwork, which comprises a plurality of support structure units, each support structure unit comprising: the first back edge, the second back edge, the third back edge and the two groups of telescopic adjusting components support the box girder template through the first back edge, the second back edge and the third back edge; two groups of telescopic adjusting components are arranged between the first back edge and the second back edge and between the first back edge and the third back edge, although the using size of the supporting structure can be adjusted and the supporting structure can be used repeatedly, the supporting structure is found in use that the screw rod arranged on the adjusting components is in threaded connection with the sleeve, when the screw rod and the sleeve are stressed and then bent and deformed, and when the sleeve is rotated, the clamping stagnation fault is easy to occur between the sleeve and the screw rod, so that the extension length of the adjusting components cannot be adjusted, the adjusting components are corrected, time and labor are wasted, the formwork supporting time is wasted, and the construction efficiency is reduced;
therefore, in view of the above problems, the utility model provides a support structure for continuous box girder construction, which has the advantages of simple structure, low failure rate, convenient adjustment and contribution to ensuring the construction efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a support structure for continuous box girder construction.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model discloses a support structure for continuous box girder construction, which comprises:
a first back edge for supporting the bottom formwork of the box girder, a second back edge for supporting the web formwork of the box girder, a third back edge for supporting the wing formwork of the box girder, and
the adjusting component is connected among the first back edge, the second back edge and the third back edge and comprises two telescopic ejector rods for adjusting the extension length of the adjusting component in a primary mode;
a folding frame is connected between the two ejector rods, and an axis of the folding frame, which is perpendicular to the supporting direction of the adjusting assembly, is connected with a driving rod;
under the working state, the driving rod is driven to rotate, and the folding frame deforms along the axis, so that the extension length of the adjusting assembly is adjusted in a secondary mode.
Furthermore, folding frame's structure is the polygon structure that a plurality of connecting rods end to end formed, and articulates between two adjacent connecting rods has a base, two relatively threaded connection has between the base the actuating lever, be on a parallel with the actuating lever the base has linked firmly the ejector pin.
Furthermore, a handle is fixed at one end of the driving rod and used for driving the driving rod to rotate.
Furthermore, the folding frame is constructed into a polygonal structure formed by connecting a plurality of connecting rods end to end, a base is hinged between two adjacent connecting rods, the driving rod is fixedly connected between two opposite bases, and the base parallel to the driving rod is fixedly connected with the ejector rod;
wherein, the driving rod is of a telescopic rod structure.
Further, the driving rod comprises a screw fixedly connected with the base, and the screw comprises a first screw, a second screw and a screw sleeve connected between the first screw and the second screw.
Furthermore, the side wall of the threaded sleeve is fixedly connected with a handle for driving the threaded sleeve to rotate.
Further, the ejector pin include with fixed first body of rod of folding frame and suit are in the internal second body of rod of first body of rod, second body of rod end is provided with the connecting hole, wherein, the first body of rod with be provided with locating component between the second body of rod for the locking first body of rod with the second body of rod extends length.
Furthermore, the positioning assembly comprises a first positioning hole and a plurality of second positioning holes;
the first rod body is provided with the first positioning hole;
a plurality of second positioning holes are formed in the second rod body at intervals;
the first positioning hole can be connected with the second positioning holes at different positions through connecting pieces.
Further, the connecting piece is a pin shaft.
Further, the connecting piece is a bolt assembly.
In the technical scheme, the support structure for continuous box girder construction provided by the utility model has the beneficial effects that:
1. according to the support structure, the adjusting assembly arranged on the support structure comprises two telescopic ejector rods, a folding frame is connected between the two ejector rods and provided with a driving rod for deforming the folding frame, the driving rod is perpendicular to the axis of the supporting direction of the adjusting assembly, the extension length of the adjusting assembly is adjusted in a large range in a first stage through the ejector rods, the construction efficiency is improved, the extension length of the adjusting assembly is adjusted in a small range in a second stage through the folding frame, the length of the adjusting assembly is enabled to be matched with the required length of the supporting position, the driving rod is arranged perpendicular to the axis of the supporting direction of the adjusting assembly in the structure, the adjusting difficulty after the bending deformation of the adjusting assembly is avoided, the probability of clamping stagnation faults is reduced, the fault rate is reduced, the frequency of trimming of the adjusting assembly is reduced, the assembling and adjusting time is effectively saved, and the construction efficiency is further improved;
2. the ejector rod comprises a first rod body and a second rod body sleeved in the first rod body, a positioning assembly is arranged between the first rod body and the second rod body, the extending lengths of the first rod body and the second rod body are locked through the positioning assembly, and the first rod body and the second rod body are sleeved with each other in the structure.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is an overall structural schematic diagram of a support structure for continuous box girder construction disclosed by the utility model;
FIG. 2 is a front view of a support structure adjustment assembly for continuous box girder construction according to the present disclosure;
FIG. 3 is a left side view of a support structure adjustment assembly for continuous box girder construction according to the present disclosure;
fig. 4 is a left side view of another embodiment of the support structure adjusting assembly for continuous box girder construction disclosed in the present invention.
Description of reference numerals:
1. a first back ridge; 11. a sliding support;
2. a second back ridge; 22. arc back arris;
3. a third back ridge; 31. a guardrail upright stanchion;
4. an adjustment assembly;
5. a top rod; 51. a first rod body; 52. a second rod body; 53. connecting holes; 54. a positioning assembly; 541. A connecting member; 542. a second positioning hole;
6. folding the frame; 61. a connecting rod; 62. a base; 63. a drive rod; 631. a first screw; 632. A second screw; 633. a threaded sleeve; 64. a handle;
7. an axis.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1;
the utility model relates to a supporting structure of continuous case roof beam construction, include: the back structure comprises a first back edge 1, a second back edge 2, a third back edge 3 and an adjusting component 4;
the first back edge 1 is used for supporting a box girder bottom formwork, the second back edge 2 is used for supporting a box girder web formwork, the third back edge 3 is used for supporting a box girder wing formwork, the tail end of the third back edge 3 is fixedly connected with a guardrail vertical rod 31, the adjusting components 4 can be telescopically connected between the first back edge 1 and the second back edge 2 as well as between the third back edge 3, the two adjusting components 4 form a group, soft cushion blocks are respectively arranged between the first back edge 1 and the box girder bottom formwork, between the second back edge 2 and the box girder web formwork and between the third back edge 3 and the box girder wing formwork, the first back edge 1 is provided with a sliding support 11, the sliding buckle type support 11 is buckled with the first back edge 1 through a buckle type base and can slide along the length direction of the first back edge 1, the base is provided with a support rod connected with the second back edge 2, and the second back edge 2 and the third back edge 3 are in transition connection with an arc back edge 22;
the adjusting component 4 comprises two telescopic ejector rods 5, and is used for adjusting the extension length of the adjusting component 4 in a primary mode, namely the extension length of the adjusting component 4 can be adjusted in a large range through the ejector rods 5, so that the construction efficiency is improved, wherein a folding frame 6 is connected between the two ejector rods 5, and an axis 7 of the folding frame 6, which is perpendicular to the supporting direction of the adjusting component 4, is connected with a driving rod 63;
in the working state, the driving rod 63 is driven to rotate, and the folding frame 6 deforms along the axis 7, so that the extension length of the secondary adjustment assembly 4 is adjusted. According to the structure, the extension length of the adjusting component 4 can be secondarily supplemented and adjusted after the extension length of the adjusting component 4 is adjusted in a primary mode through the folding frame 6, so that the adjusting component 4 is fully extended, the length of the adjusting component 4 is matched with the length needed by a supporting position, the driving rod 63 is arranged perpendicular to the axis 7 of the adjusting component 4 in the supporting direction, the adjusting difficulty after the adjusting component 4 is bent and deformed is avoided, the probability of clamping stagnation faults is reduced, the fault rate is reduced, the frequency of trimming the adjusting component 4 is reduced, the time is saved, and the construction efficiency is guaranteed;
as shown in fig. 2;
in the preferred embodiment, the folding frame 6 is configured to be a quadrilateral structure, and includes four connecting rods 61, of course, according to the use requirement, the folding frame 6 may also be a hexagon or an octagon, etc., the connecting rods 61 are connected end to form a polygonal structure, and a base 62 is hinged between two adjacent connecting rods 61 through a horizontal shaft, that is, the base 62 is uniformly arranged at the diagonal end of the folding frame 6 with the quadrilateral structure;
wherein, a driving rod 63 is connected between the two opposite bases 62 in one group through screw threads, and the two opposite bases 62 in the other group are fixedly connected with a mandril 5, that is to say, the bases 62 parallel to the driving rod 63 are fixedly connected with the mandril 5;
as shown in fig. 3;
in use, when the driving rod 63 is driven to rotate, the diagonal line perpendicular to the axis 7 is shortened, and the diagonal line collinear with the axis 7 is lengthened, so that the overall length of the adjusting assembly 4 is lengthened, and when the driving rod 63 is driven to rotate, the diagonal line perpendicular to the axis 7 is lengthened, and the diagonal line collinear with the axis 7 is shortened, so that the overall length of the adjusting assembly 4 is reduced;
as shown in fig. 3;
preferably, a handle 64 is fixed to one end of the driving rod 63, and the driving rod 63 is driven to rotate by the handle 64.
As shown in fig. 4;
another preferred embodiment, which is substantially the same as the previous embodiment, is different from the previous embodiment in that the folding frame 6 is constructed in a polygonal structure formed by connecting a plurality of connecting rods 61 end to end, and two adjacent connecting rods 61 are hinged with a base 62 through a horizontal shaft, a driving rod 63 is fixedly connected between two opposite bases 62, and a mandril 5 is fixedly connected to the base 62 parallel to the driving rod 63; wherein, the driving rod 63 is a telescopic rod structure. The structure controls the deformation of the folding frame 6 by changing the length of the driving rod 63, has compact structure, and reduces the supporting space required by the adjusting component 4 during supporting;
as shown in fig. 4;
preferably, the driving rod 63 includes a screw fixedly connected to the base 62, and the screw includes a first screw 631 and a second screw 632, and a threaded sleeve 633 connected between the first screw 631 and the second screw 632. When in use, the driving screw sleeve 633 enables the length of the driving rod 63 to extend or shorten;
preferably, a handle 64 is attached to a side wall of the screw sleeve 633 for driving the screw sleeve 633 to rotate.
As shown in fig. 2;
in a preferred embodiment, the post rod 5 comprises a first rod body 51 and a second rod body 52 sleeved in the first rod body 51, the first rod body 51 is fixedly connected with a base 62 of the folding frame 6, the second rod body 52 is sleeved in the first rod body 51, and the tail end of the second rod body 52 is provided with a connecting hole 53 which is fixedly connected with the first back edge 1, the second back edge 2 or the third back edge 3 through the connecting hole 53;
a positioning assembly 54 is disposed between the first rod 51 and the second rod 52 for locking the extension length of the first rod 51 and the second rod 52.
Preferably, the positioning assembly 54 includes a first positioning hole and a plurality of second positioning holes 542;
the first rod body 51 is provided with a first positioning hole;
a plurality of second positioning holes 542 are formed on the second rod 52 at intervals;
the first positioning hole can be connected with the second positioning hole 542 at different positions through the connection member 541.
When in use, the ejector rod 5 is connected with the second positioning holes 542 at different positions through the connecting piece 541, so as to adjust the extending length of the ejector rod 5;
preferably, the connecting member 541 is a pin;
specifically, shaft holes are formed at two ends of the pin shaft, and split pins are detachably mounted in the shaft holes, so that the connecting piece 541 is matched with second positioning holes 542 at different positions to adjust the extension lengths of the first rod body 51 and the second rod body 52.
Preferably, the connection piece 541 is a bolt assembly;
specifically, the bolt assembly includes a bolt and a nut in threaded connection with the bolt, the bolt penetrates through the first positioning hole and the second positioning hole 542 and then is connected with the first rod body 51 and the second rod body 52, and after the nut is fastened, the first rod body 51 and the second rod body 52 are fixedly connected.
In the technical scheme, the utility model provides a support structure for continuous box girder construction, which comprises the following steps:
firstly, detaching the connecting piece 541, adjusting the extending length of the mandril 5, performing primary adjustment on the overall length of the support structure, secondly, driving the driving rod 63 to rotate, adjusting the shape of the folding frame 6, performing secondary adjustment on the overall length of the support structure, and enabling the overall length of the support structure to be adapted to the length required by a supporting position, wherein after the length of the support structure meets the requirement, the second rod body 52 is fixedly connected with the first back edge 1, the second back edge 2 or the third back edge 3 through the connecting hole 53;
has the advantages that:
1. according to the support structure, the adjusting assembly arranged on the support structure comprises two telescopic ejector rods, a folding frame is connected between the two ejector rods and provided with a driving rod for deforming the folding frame, the driving rod is perpendicular to the axis of the supporting direction of the adjusting assembly, the extension length of the adjusting assembly is adjusted in a large range in a first stage through the ejector rods, the construction efficiency is improved, the extension length of the adjusting assembly is adjusted in a small range in a second stage through the folding frame, the length of the adjusting assembly is enabled to be matched with the required length of the supporting position, the driving rod is arranged perpendicular to the axis of the supporting direction of the adjusting assembly in the structure, the adjusting difficulty after the bending deformation of the adjusting assembly is avoided, the probability of clamping stagnation faults is reduced, the fault rate is reduced, the frequency of trimming of the adjusting assembly is reduced, the assembling and adjusting time is effectively saved, and the construction efficiency is further improved;
2. the ejector rod comprises a first rod body and a second rod body sleeved in the first rod body, a positioning assembly is arranged between the first rod body and the second rod body, the extension lengths of the first rod body and the second rod body are locked through the positioning assembly, and the first rod body and the second rod body are mutually sleeved in the structure, so that the structure is simple and convenient to adjust.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the utility model.
Claims (10)
1. A support structure for continuous box girder construction comprises;
a first back edge (1) for supporting the box girder bottom template, a second back edge (2) for supporting the box girder web template, a third back edge (3) for supporting the box girder wing template, and
the adjusting component (4) is connected between the first back edge (1), the second back edge (2) and the third back edge (3), the adjusting component (4) comprises two telescopic ejector rods (5) and is used for adjusting the extending length of the adjusting component (4) in a primary mode, and the adjusting component is characterized in that;
a folding frame (6) is connected between the two ejector rods (5), and an axis (7) of the folding frame (6) perpendicular to the supporting direction of the adjusting assembly (4) is connected with a driving rod (63);
in the working state, the driving rod (63) is driven to rotate, and the folding frame (6) deforms along the axis (7), so that the extension length of the adjusting component (4) is adjusted in a secondary mode.
2. The support structure for continuous box girder construction according to claim 1, wherein;
the structure of folding frame (6) is the polygon structure that a plurality of connecting rods (61) end to end formed, and articulates between two adjacent connecting rods (61) has base (62), two relatively threaded connection has between base (62) actuating lever (63), is on a parallel with actuating lever (63) base (62) has linked firmly ejector pin (5).
3. The support structure for continuous box girder construction according to claim 2, wherein;
and one end of the driving rod (63) is fixedly provided with a handle (64) which is used for driving the driving rod (63) to rotate.
4. The support structure for continuous box girder construction according to claim 1, wherein;
the folding frame (6) is constructed into a polygonal structure formed by connecting a plurality of connecting rods (61) end to end, a base (62) is hinged between two adjacent connecting rods (61), the driving rod (63) is fixedly connected between two opposite bases (62), and the base (62) parallel to the driving rod (63) is fixedly connected with the ejector rod (5);
wherein, the driving rod (63) is a telescopic rod structure.
5. The support structure for continuous box girder construction according to claim 4, wherein;
the driving rod (63) comprises a screw fixedly connected with a base (62), and the screw comprises a first screw (631) and a second screw (632), and a screw sleeve (633) connected between the first screw (631) and the second screw (632).
6. The support structure for continuous box girder construction according to claim 5, wherein;
the side wall of the threaded sleeve (633) is fixedly connected with a handle (64) used for driving the threaded sleeve (633) to rotate.
7. The support structure for continuous box girder construction according to claim 1, wherein;
ejector pin (5) include with fixed first body of rod (51) of folding frame (6) and suit are in second body of rod (52) in first body of rod (51), the second body of rod (52) end is provided with connecting hole (53), wherein, first body of rod (51) with be provided with locating component (54) between the second body of rod (52), be used for the locking first body of rod (51) with the second body of rod (52) extend length.
8. The support structure for continuous box girder construction according to claim 7, wherein;
the positioning component (54) comprises a first positioning hole and a plurality of second positioning holes (542);
the first rod body (51) is provided with the first positioning hole;
the second rod body (52) is provided with second positioning holes (542) at intervals;
the first positioning hole can be connected with the second positioning holes (542) at different positions through connecting pieces (541).
9. The support structure for continuous box girder construction according to claim 8, wherein;
the connecting piece (541) is a pin shaft.
10. The support structure for continuous box girder construction according to claim 8, wherein;
the connecting piece (541) is a bolt assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220246367.1U CN216809610U (en) | 2022-01-30 | 2022-01-30 | Support structure for continuous box girder construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220246367.1U CN216809610U (en) | 2022-01-30 | 2022-01-30 | Support structure for continuous box girder construction |
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| CN216809610U true CN216809610U (en) | 2022-06-24 |
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| CN202220246367.1U Active CN216809610U (en) | 2022-01-30 | 2022-01-30 | Support structure for continuous box girder construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341577A (en) * | 2022-09-23 | 2022-11-15 | 中建五局第三建设有限公司 | Structure supporting device and structure supporting method |
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2022
- 2022-01-30 CN CN202220246367.1U patent/CN216809610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341577A (en) * | 2022-09-23 | 2022-11-15 | 中建五局第三建设有限公司 | Structure supporting device and structure supporting method |
| CN115341577B (en) * | 2022-09-23 | 2024-02-27 | 中建五局第三建设有限公司 | Structure supporting device and structure supporting method |
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Address after: 100176, 4th Floor, Building 1, Courtyard 1, Kegu Fourth Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: China Communications Construction Group Sixth Engineering Co.,Ltd. Address before: 100176 room 526, 5th floor, block C, 18 Xihuan South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: THIRD ENGINEERING CO., LTD. OF CCCC FOURTH HIGHWAY ENGINEERING Co.,Ltd. |