CN212052371U - Hanging basket device for variable width concrete box girder suspension casting construction - Google Patents
Hanging basket device for variable width concrete box girder suspension casting construction Download PDFInfo
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- CN212052371U CN212052371U CN202020295710.2U CN202020295710U CN212052371U CN 212052371 U CN212052371 U CN 212052371U CN 202020295710 U CN202020295710 U CN 202020295710U CN 212052371 U CN212052371 U CN 212052371U
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Abstract
The utility model discloses a hang basket device that is used for widen concrete box girder cantilever to water construction, include: the length of the front upper cross beam, the front lower cross beam, the rear lower cross beam and the main truss along the width direction of the bridge deck is greater than the preset maximum width of the bridge deck; the movable hoisting points are arranged on the front upper cross beam and can move along the length direction parallel to the front upper cross beam; a plurality of mobile booms, said mobile booms being fixed to said mobile lifting points; the movable hinges are arranged at the front ends of an outer sliding beam and an inner sliding beam of the walking system; when the movable lifting point moves to a preset position, the other end of the movable hinge is fixed on the movable suspension rod, and the movable suspension rod is further fixed on the top surface of the box girder. The utility model discloses have only need to remove the hoisting point and rotate in the beneficial effect that smooth roof beam and the construction requirement that outer smooth roof beam can adapt to the bridge floor widen.
Description
Technical Field
The utility model relates to a bridge construction field. More specifically, the utility model relates to a hang basket device that is used for widen concrete box girder cantilever to water construction.
Background
At present, in the construction of large-span bridges in China, a cradle cantilever construction method becomes an extensive construction process, a profile steel support does not need to be erected, a large crane is not used, the construction method has the advantages of light structure, simplicity and convenience in splicing, no need of weight and the like, the existing cradle cantilever casting construction method is only suitable for the construction of box girders with equal-width sections, and the applicability to the whole widened bridge deck cantilever casting construction is poor. However, due to the use requirements, the related designs of the widened cantilever bridge in the existing bridge are gradually increased, some bridges are positioned on a plane curve, the width of the bridge deck is changed to a certain extent, and a hanging basket for cantilever construction is required to adapt to the bridge deck.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a hang basket device that is used for widen concrete box girder to hang and waters construction, only need remove hoisting point and rotate interior smooth roof beam and outer smooth roof beam and can adapt to the construction requirement of bridge floor widen, simple structure, flexible operation, safe and reliable.
To achieve these objects and other advantages in accordance with the purpose of the invention, a basket hanging device for a widened concrete box girder suspension casting construction is provided, comprising a main girder system, a traveling system, an anchoring system, a formwork system, a bottom basket system, a hanging system, and a platform protection system, the basket hanging device being a rhombic basket;
the length of a front upper cross beam, a front lower cross beam, a rear lower cross beam and a main truss of the main truss system along the width direction of the bridge deck is greater than the preset maximum width of the bridge deck;
the movable hoisting points are arranged on the front upper cross beam and can move along the length direction parallel to the front upper cross beam;
a plurality of mobile booms, said mobile booms being fixed to said mobile lifting points;
the movable hinges are arranged at the front ends of an outer sliding beam and an inner sliding beam of the walking system;
when the movable lifting point moves to a preset position, the other end of the movable hinge is fixed on the movable suspension rod, and the movable suspension rod is further fixed on the top surface of the box girder.
Preferably, the method further comprises the following steps:
a plurality of additional suspension points respectively disposed on the front lower cross member and the front upper cross member;
and the same additional suspender is fixed on additional hoisting points on the front lower cross beam and the front upper cross beam.
Preferably, the two additional suspension points, to which the same additional boom is fixed, are located in the same vertical direction.
Preferably, the front upper cross beam comprises a pair of I-shaped steels which are parallel and are spliced at intervals, and a gap between the pair of I-shaped steels forms a slide rail which is communicated up and down;
the movable hoisting point is a hoisting piece which is arranged on the slide rail in a sliding manner, and the movable hoisting rod is fixed on the hoisting piece.
Preferably, the lifting device further comprises a plurality of jacks, the top rods of the jacks are connected with the hanging pieces, and the moving direction of the top rods of the jacks is parallel to the length direction of the slide rail.
Preferably, the pad beam of the running system comprises a pad beam body and a lengthening part, and the pad beam body and the lengthening part are integrally formed.
Preferably, the inner formwork of the formwork system comprises an inner formwork body and an inner formwork increasing part, the inner formwork body is provided with a plurality of bolting holes, and the inner formwork increasing part is fixedly connected with the inner formwork body through bolts and the bolting holes.
Preferably, the outer formwork of the formwork system comprises an outer formwork body and an outer formwork increasing part, the outer formwork body is provided with a plurality of bolting holes, and the outer formwork increasing part is fixedly connected with the outer formwork body through bolts and the bolting holes.
Preferably, the bottom longitudinal beam of the bottom basket system comprises a bottom longitudinal beam body and a plurality of additionally arranged bottom longitudinal beams, and the additionally arranged bottom longitudinal beams are arranged at the widened bottom position of the bottom basket system.
The utility model discloses at least, include following beneficial effect:
firstly, part of parts in the traditional suspension casting hanging basket structure are changed, the front upper cross beam, the front lower cross beam, the rear lower cross beam and the main truss are widened, a movable hanging point is additionally arranged, the hanging point is slid and reinforced to adapt to widening construction of a bridge deck, no complex part is additionally arranged, and the structure is simple and easy to process.
And secondly, the movable hinge with the steering function is arranged to realize the rotation of the inner sliding beam and the outer sliding beam, and the movable hinge can horizontally lean outwards so as to flexibly adapt to the section of the box girder which is continuously widened and heightened, and the operation is simple and flexible.
Thirdly, when the design is carried out, the pad beam in the web plate change range is lengthened, the track load diffusion range can be enlarged, the track position at the bottom of the main truss does not need to be changed according to the change of the web plate position of the main girder, the bearing capacity of the anchoring section is ensured, and the method is safe and reliable.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a front view of the hanging basket device according to the present invention;
fig. 2 is a side view of the hanging basket according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1-2, the utility model provides a basket hanging device for widening concrete box girder suspension casting construction, which comprises a main truss system, a walking system, an anchoring system, a template system, a bottom basket system, a hanging system and a platform protection system, wherein the basket hanging device is a rhombic basket hanging device;
the length of a front upper cross beam 1, a front lower cross beam 2, a rear lower cross beam 3 and a main truss of the main truss system along the width direction of the bridge deck is greater than the preset maximum width of the bridge deck; the front upper cross beam 1, the front lower cross beam 2, the rear lower cross beam 3 and the main truss can be adapted to the preset maximum width of the bridge floor, so that preparation is made for installing a template system, a bottom basket system and the like on the structure.
The movable lifting points 4 are arranged on the front upper cross beam 1, and the movable lifting points 4 can move along the length direction parallel to the front upper cross beam 1;
a plurality of mobile booms 5, said mobile booms 5 being fixed to said mobile suspension points 4;
the movable hinges 6 are arranged at the front end positions of an outer sliding beam 15 and an inner sliding beam 16 of the walking system;
when the mobile suspension point 4 moves to a preset position, the other end of the movable hinge 6 is fixed on the mobile suspension rod 5, and the mobile suspension rod 5 is also fixed on the top surface of the box girder.
The movable hoisting point 4 is moved to a proper position according to the widening degree of each bridge deck, and then the hoisting rod is fixed, so that an excellent fixed position is provided for the laying of the template system and the bottom basket system, and the stress is more balanced. Due to the horizontal rotation function of the movable hinge 6 and the combination with the movement of the movable hanging point 4, the outer sliding beam 15 and the inner sliding beam 16 can be inclined outwards along the extension direction of the bridge deck, and the bridge deck is widened.
In the technical scheme, after the first section of concrete reaches the design strength, the hanging basket is installed and pre-pressed according to the standard, and the qualified rear part can be put into use. During the standard stage construction of the main beam, attention is paid to the balance of the single T-shaped structures of the main beam, namely the sum of bending moments on two sides of each T-shaped structure is equal. The unbalanced weight must not exceed the design requirements. When the construction of the front section is finished and the front section is ready to move forwards for widening the main girder section, firstly, the rear anchor point of the main girder system is loosened but can not be loosened completely, the front pad girder 10 is arranged according to gradual widening, the main girder is jacked up by a jack, pulled to move forwards, moved to the hanging basket and adjusted in place and then installed in time for anchoring.
After the basket anchoring is finished, the movable hoisting point 4 on the front upper cross beam 1 is translated outwards by using the jack 9 to drive the movable hoisting rod 5 to move outwards, the hoisting rod can be driven to drive the outer sliding beam 15 and the inner sliding beam 16 to rotate due to the rotating function of the movable hinge 6, so that the front ends of the outer sliding beam 15 and the inner sliding beam 16 move outwards to the position corresponding to the movable hoisting point 4 on the front upper cross beam 1, then the movable hoisting rod 5 is fixed on the top surface of the box girder, and the requirement that the outer sliding beam 15 and the inner sliding beam 16 adapt to bridge deck widening construction is finished.
And finally, paving the bottom die according to a bottom die paving method in the prior art, paving an outer die frame 13 and an inner die of the widened bridge deck, and then performing reinforcing steel bar and concrete construction.
After the construction of the section is finished, the section continues to move forwards to carry out lower section construction, the steps are repeated, and if the section is widened to a certain degree, the movable lifting points 4 and the movable lifting rods 5 can be additionally arranged to adapt to the requirement of a wider bridge floor, and the construction is circulated until the end.
In another technical solution, the method further comprises:
a plurality of additional hoisting points respectively arranged on the front lower beam 2 and the front upper beam 1;
a plurality of additional suspension bars 8, the same additional suspension bar 8 being fixed to additional suspension points on the front lower beam 2 and the front upper beam 1.
In the technical scheme, as the transverse widening can increase the bearing load of the basket hanging device, in order to improve the stability of the bearing of the basket hanging device, the additional hanging points and the additional hanging rods 8 are added, so that the stress points are increased, the stress parts are dispersed, and the stability is improved.
In another solution, two additional suspension points, to which the same additional suspension bar 8 is fixed, are located in the same vertical direction. When the additional hanger bar 8 is in a vertical state, the transverse stress can be reduced, and the stability is improved.
In another technical scheme, the front upper cross beam 1 comprises a pair of I-shaped steels 11 which are formed by splicing in parallel at intervals, and a gap between the I-shaped steels 11 forms a slide rail which is through up and down;
the movable hanging point 4 is a hanging piece sliding on the slide rail, and the movable hanging rod 5 is fixed on the hanging piece. The mobile lifting point 4 can move stably and reliably.
In another technical scheme, the device further comprises a plurality of jacks 9, the top rods of the jacks 9 are connected with the hanging pieces, and the moving direction of the top rods of the jacks 9 is parallel to the length direction of the slide rail. The lifting point 4 is moved by the jack 9, so that the labor is saved and the stability is improved.
In another technical scheme, the pad beam 10 of the running system comprises a pad beam body and a lengthened part, wherein the pad beam body and the lengthened part are integrally formed. When in design, the pad beam in the web plate change range is lengthened, so that the track load diffusion range can be enlarged, the track position at the bottom of the main truss does not need to be changed according to the change of the web plate position of the main girder, the bearing capacity of the anchoring section is ensured, and the method is safe and reliable.
In another technical scheme, the inner formwork 12 of the formwork system comprises an inner formwork body and an inner formwork increasing part, wherein the inner formwork body is provided with a plurality of bolting holes, and the inner formwork increasing part is fixedly connected with the inner formwork body through bolts and the bolting holes. The change of the structure and the position of the variable-width section box chamber is fully considered during the design of the inner mold, the bolt connecting hole convenient for lengthening is arranged on the inner mold frame 12, and the variable width of the inner mold is realized by utilizing the rigidity of the inner mold.
In another technical scheme, the outer mold frame 13 of the formwork system comprises an outer mold frame body and an outer mold frame increasing part, wherein the outer mold frame body is provided with a plurality of bolt holes, and the outer mold frame increasing part is fixedly connected with the outer mold frame body through bolts and the bolt holes. The change of the bridge deck structure and the position of the widening section is fully considered during the design of the external mold, the bolt connecting hole which is convenient to lengthen is arranged on the external mold frame 13, and the widening of the external mold is realized by utilizing the self rigidity.
In another technical scheme, the bottom longitudinal beam of the bottom basket system comprises a bottom longitudinal beam body and a plurality of additionally arranged bottom longitudinal beams, and the additionally arranged bottom longitudinal beams are arranged at the widened bottom position of the bottom basket system. Is beneficial to laying the bottom die and then carrying out the construction of reinforcing steel bars and concrete.
The device structure denoted by each reference numeral in fig. 2 is as follows: the device comprises a diamond-shaped main truss 17, a walking slideway 18, a walking front sliding plate 19, a walking hanging ring 20, an operating platform 21, a bottom die 22, a bridge deck section to be poured 24 and a bridge deck section to be poured 23.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. The hanging basket device for the widened concrete box girder suspension casting construction comprises a main truss system, a walking system, an anchoring system, a template system, a bottom basket system, a hanging system and a platform protection system, and is characterized in that the hanging basket device is a rhombic hanging basket;
the length of a front upper cross beam, a front lower cross beam, a rear lower cross beam and a main truss of the main truss system along the width direction of the bridge deck is greater than the preset maximum width of the bridge deck;
the movable hoisting points are arranged on the front upper cross beam and can move along the length direction parallel to the front upper cross beam;
a plurality of mobile booms, said mobile booms being fixed to said mobile lifting points;
the movable hinges are arranged at the front ends of an outer sliding beam and an inner sliding beam of the walking system;
when the movable lifting point moves to a preset position, the other end of the movable hinge is fixed on the movable suspension rod, and the movable suspension rod is further fixed on the top surface of the box girder.
2. The basket apparatus for widened concrete box girder cantilever casting construction according to claim 1, further comprising:
a plurality of additional suspension points respectively disposed on the front lower cross member and the front upper cross member;
and the same additional suspender is fixed on additional hoisting points on the front lower cross beam and the front upper cross beam.
3. A basket apparatus for the widening of concrete box girder suspension casting work as claimed in claim 2, wherein two additional suspension points fixing the same additional suspension bar are located in the same vertical direction.
4. The basket apparatus for the widened suspension casting construction of a concrete box girder according to claim 1, wherein the front upper cross member comprises a pair of i-beams formed by parallel and spaced-apart splicing, and a gap between the pair of i-beams forms a slide rail penetrating up and down;
the movable hoisting point is a hoisting piece which is arranged on the slide rail in a sliding manner, and the movable hoisting rod is fixed on the hoisting piece.
5. The basket apparatus for the widened precast construction of a concrete box girder according to claim 4, further comprising a plurality of jacks, the jacks of which the jacks are connected to the hanger, the jacks of which the moving direction of the jacks is parallel to the length direction of the slide rails.
6. A basket apparatus for widened concrete box girder cantilever casting construction according to claim 1, wherein the bolster of the running system comprises a bolster body and an extension, the bolster body and the extension being integrally formed.
7. The basket hanging device for the widened concrete box girder suspension casting construction according to claim 1, wherein the inner formwork of the formwork system comprises an inner formwork body and an inner formwork increasing portion, the inner formwork body is provided with a plurality of bolting holes, and the inner formwork increasing portion is fixedly connected with the inner formwork body through bolts and the bolting holes.
8. A basket hanging apparatus for a widened concrete box girder suspension casting construction according to claim 1, wherein the outer formwork of the formwork system comprises an outer formwork body on which a plurality of bolting holes are provided and an outer formwork addition part fixedly connected with the outer formwork body through bolts and bolting holes.
9. The basket apparatus for widened concrete box girder cantilever casting construction according to claim 1, wherein the bottom longitudinal beam of the bottom basket system comprises a bottom longitudinal beam body and a plurality of added bottom longitudinal beams provided at a widened bottom position of the bottom basket system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020295710.2U CN212052371U (en) | 2020-03-11 | 2020-03-11 | Hanging basket device for variable width concrete box girder suspension casting construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020295710.2U CN212052371U (en) | 2020-03-11 | 2020-03-11 | Hanging basket device for variable width concrete box girder suspension casting construction |
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| CN212052371U true CN212052371U (en) | 2020-12-01 |
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| CN202020295710.2U Active CN212052371U (en) | 2020-03-11 | 2020-03-11 | Hanging basket device for variable width concrete box girder suspension casting construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892543A (en) * | 2022-06-01 | 2022-08-12 | 中国十九冶集团有限公司 | Construction method of bridge closure device |
| CN115341482A (en) * | 2022-05-21 | 2022-11-15 | 中建五局土木工程有限公司 | One-sided widened unbalanced heavy cantilever box girder hanging basket and its construction method |
-
2020
- 2020-03-11 CN CN202020295710.2U patent/CN212052371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341482A (en) * | 2022-05-21 | 2022-11-15 | 中建五局土木工程有限公司 | One-sided widened unbalanced heavy cantilever box girder hanging basket and its construction method |
| CN114892543A (en) * | 2022-06-01 | 2022-08-12 | 中国十九冶集团有限公司 | Construction method of bridge closure device |
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