CN213538700U - Supporting structure for concrete construction of cantilever end of steel-concrete composite beam bridge - Google Patents
Supporting structure for concrete construction of cantilever end of steel-concrete composite beam bridge Download PDFInfo
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- CN213538700U CN213538700U CN202022222237.8U CN202022222237U CN213538700U CN 213538700 U CN213538700 U CN 213538700U CN 202022222237 U CN202022222237 U CN 202022222237U CN 213538700 U CN213538700 U CN 213538700U
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Abstract
The utility model discloses a supporting structure for concrete construction of a cantilever end of a steel-concrete composite beam bridge, which comprises a connecting rod, a hanger unit and a concrete supporting unit; the number of the hanger units is multiple, and each hanger unit comprises a main supporting column, a cantilever beam, a supporting beam and a hanging rod; the main supporting column is vertically fixed on the steel box girder, the upper end of the main supporting column is connected with one end of the cantilever beam, and the other end of the cantilever beam extends to the outer side of the steel box girder; a supporting beam is arranged right below the cantilever beam and is connected with the cantilever beam through a hanging rod; one end of each cantilever beam in the plurality of hanger units is connected with the connecting rod; the concrete support unit is provided on the support beam among the plurality of hanger units. The utility model discloses a bearing structure can guarantee that the steel-concrete composite beam bridge floor concrete after the construction can satisfy the technological requirement, has avoided adopting the bowl to detain a braced system and has leaded to the concrete to have the problem of inhomogeneous settlement, and this bearing structure is convenient for install simultaneously, and the efficiency of construction is high, has reduced construction cost.
Description
Technical Field
The utility model belongs to the technical field of the steel-concrete composite beam bridge construction, concretely relates to a bearing structure that is used for concrete construction of steel-concrete composite beam bridge cantilever end.
Background
When the concrete construction is carried out on the cantilever end of the steel-concrete composite beam bridge, a supporting structure for supporting the concrete template is usually required to be arranged, and the supporting structure is arranged at the position close to the steel box girder of the steel-concrete composite beam bridge.
The existing supporting structure mostly adopts a bowl buckle frame supporting system, while the steel box girder is usually supported by a steel pipe upright post bracket which is only erected at the joint of the steel box girder. Because the difference exists in time and intensity between the erection of the steel pipe upright post support and the erection of the bowl buckling frame support system, the settlement of the two sets of support systems is not uniform, and the concrete of the steel-concrete composite beam bridge deck is not uniformly settled. The uneven settlement influences the strength of the steel-concrete composite beam bridge structure, so that certain potential safety hazards exist. Meanwhile, the bowl buckle frame supporting system is used for supporting, and the problems that steel pipes, bowl buckle joints and the like are large in using amount and time and labor are wasted in installation are solved.
Disclosure of Invention
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a bearing structure that is used for steel-concrete composite beam bridge cantilever end concrete construction, this bearing structure can guarantee that the steel-concrete composite beam bridge floor panel concrete after the construction can satisfy the technological requirement, has avoided adopting the bowl to detain a braced system and has leaded to the concrete to have the problem of differential settlement, and this bearing structure is convenient for install simultaneously, and the efficiency of construction is high, has reduced construction cost.
In order to solve the technical problem, the utility model discloses a technical scheme is: a supporting structure for concrete construction of a cantilever end of a steel-concrete composite beam bridge comprises a connecting rod, a hanger frame unit and a concrete supporting unit;
the number of the hanger units is multiple, the hanger units are arranged at the cantilever end of the steel-concrete composite beam bridge in parallel, and each hanger unit comprises a main support column, a cantilever beam, a support beam and a hanger rod;
the main supporting column is vertically fixed on the steel box girder, the upper end of the main supporting column is detachably connected with one end of the cantilever beam, and the other end of the cantilever beam extends to the outer side of the steel box girder; the supporting beam is arranged under the cantilever beam and is detachably connected with the cantilever beam through the hanging rod;
the cantilever beams in the plurality of hanger units are vertically connected with the connecting rod at one end far away from the main supporting column; the concrete supporting unit is provided on the support beam among the plurality of hanger units.
Preferably, still be fixed with secondary support column on the steel box girder, secondary support column is located between the main tributary dagger and the jib, secondary support column's upper end with the cantilever beam is connected.
Preferably, the concrete support unit comprises a plurality of square timbers and rubber plates, the number of the square timbers is a plurality of the square timbers are laid in parallel, and the rubber plates are laid on the square timbers.
Preferably, the hanger rod is sleeved with a PVC pipe.
Preferably, the both ends of jib all are equipped with the external screw thread, the both ends of jib pass respectively support beam with all be connected with the nut behind the hole on the cantilever beam, the nut with support beam all be equipped with the gasket between the cantilever beam.
Preferably, the upper end of the hanger rod at the end part of the cantilever beam penetrates through the cantilever beam and the connecting rod respectively and then is connected with a nut, and the gasket is positioned between the nut and the connecting rod.
Compared with the prior art, the utility model has the following advantage:
the utility model discloses a bearing structure installs through the steel box girder of steel-concrete composite beam bridge, thereby make the bearing structure of steel-concrete composite beam bridge cantilever end concrete and the support of steel box girder form one set of support system, and then guarantee that the steel-concrete composite beam bridge floor slab concrete after the construction can satisfy the technological requirement, thereby the structural strength of steel-concrete composite beam bridge has been ensured, the problem of adopting bowl to detain a braced system and leading to the concrete to have inhomogeneous settlement has been avoided, this bearing structure is convenient for install simultaneously, high construction efficiency, construction cost is reduced.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram provided in the embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Description of reference numerals:
1-a connecting rod; 2-steel-concrete composite beam bridge; 3-steel box girder;
4-a hanger unit; 41-main supporting column; 42-cantilever beam;
43-a support beam; 44-a boom; 5-a concrete supporting unit;
51-square timber; 52-a rubber plate; 6-secondary support columns;
7-concrete on the cantilever end of the steel-concrete composite beam bridge.
Detailed Description
As shown in fig. 1 and 2, the support structure for concrete construction of the cantilever end of a steel-concrete composite beam bridge of the present invention comprises a connecting rod 1, a hanger unit 4 and a concrete support unit 5;
the number of the hanger units 4 is multiple, the plurality of hanger units 4 are arranged at the cantilever end of the steel-concrete composite beam bridge 2 in parallel, and each hanger unit 4 comprises a main supporting column 41, a cantilever beam 42, a supporting beam 43 and a suspender 44;
the main supporting column 41 is vertically fixed on the steel box girder 3, the upper end of the main supporting column 41 is detachably connected with one end of the cantilever beam 42, and the other end of the cantilever beam 42 extends to the outer side of the steel box girder 3; a supporting beam 43 is arranged right below the cantilever beam 42, and the supporting beam 43 is detachably connected with the cantilever beam 42 through a suspension rod 44;
the cantilever beams 42 in the multiple hanger units 4 are all vertically connected to the connecting rods 1 at the ends remote from the main support columns 41; the concrete supporting unit 5 is provided on the supporting beam 43 in the plurality of hanger units 4.
The end of the cantilever beam 42 is fixed by the main support column 41, and the support beam 43 can be lifted by the hanger 44, and the main support column 41, the cantilever beam 42, the support beam 43, and the hanger 44 form a hanger structure that can support concrete placement at the cantilever end.
The main supporting column 41 and the cantilever beam 42, and the supporting beam 43 and the cantilever beam 42 are detachably connected, so that the supporting structure is convenient to mount; after the concrete construction of the cantilever end of the steel-concrete composite beam bridge is finished, the concrete supporting unit 5, the cantilever beam 42, the supporting beam 43 and the connecting rod 1 can be detached for reuse in the next construction.
As shown in fig. 2, the cantilever beams 42 in the plurality of hanger units 4 are connected by the connecting rod 1, so that the plurality of hanger units 4 form an integrated structure, the integrated structure has high strength, and the strength of the support structure of the embodiment can be satisfied.
Concrete supporting unit 5 is used for supporting the concrete of steel-concrete composite beam bridge cantilever end, through connecting rod 1, gallows unit 4 and concrete supporting unit 5 mutually support, the bearing structure of this embodiment has been formed, this bearing structure carries out fixed mounting through steel box girder 3 of steel-concrete composite beam bridge, thereby make the bearing structure of steel-concrete composite beam bridge cantilever end concrete and the support of steel box girder form one set of support system, and then guarantee that the steel-concrete composite beam bridge floor slab concrete after the construction can satisfy the technological requirement, thereby the structural strength of steel-concrete composite beam bridge has been ensured, avoided adopting bowl buckle frame braced system and lead to the problem that the concrete has inhomogeneous settlement, this bearing structure is convenient for install simultaneously, high efficiency of construction, construction cost is reduced.
In actual operation, the cantilever beam 42 can adopt No. 12 channel steel, the main supporting column 41 can adopt a plurality of phi 20U-shaped bolts, the bending of the U-shaped bolts is in welded connection with the steel box beam 3, and the end parts of the U-shaped bolts penetrate through the cantilever beam 42 and are fixed through nuts; the supporting beam 43 and the connecting rod 1 can adopt double-spliced steel pipes, and the double-spliced steel pipes are two steel pipe structures fixed in parallel.
In this embodiment, the steel box girder 3 is further fixed with a secondary support column 6, the secondary support column 6 is located between the main support column 41 and the hanger rod 44, and the upper end of the secondary support column 6 is connected with the cantilever beam 42.
It should be noted that the secondary supporting column 6 is used to assist in supporting the cantilever beam 42, so as to improve the reliability of the supporting structure, and the secondary supporting column 6 may be a 48 × 3.5mm steel pipe.
In this embodiment, the concrete supporting unit 5 includes a plurality of square timbers 51 and a rubber plate 52, the number of the square timbers 51 is plural, the plurality of square timbers 51 are laid in parallel, and the rubber plate 52 is laid on the square timbers 51.
Note that concrete is poured on the slab 52, and after the concrete is set, the square lumber 51 and the slab 52 are removed to be used again.
The square timber 51 can be 60mm 80mm square timber, the square timber 51 is laid perpendicular to the support beam 43, and the plywood 52 can be 2cm thick bamboo plywood.
In this embodiment, the hanger bar 44 is sleeved with a PVC pipe.
After the concrete is poured, the PVC pipe is left in the concrete, and then the concrete is poured in the PVC pipe; thus, the hanger bar 44 is removable for reuse in the next support. Both the secondary support columns 6 and the primary support columns 41 remain within the concrete.
In this embodiment, the both ends of jib 44 all are equipped with the external screw thread, and the both ends of jib 44 are passed respectively and all are connected with the nut after the hole on supporting beam 43 and the cantilever beam 42, all are equipped with the gasket between nut and supporting beam 43, the cantilever beam 42.
It should be noted that, the hanger rod 44, the support beam 43 and the cantilever beam 42 are all connected by nuts, so that the hanger rod can be detached easily, and the fixing mode is reliable and stable.
In this embodiment, the upper end of the suspension rod 44 at the end of the cantilever beam 42 is connected to the nut after passing through the cantilever beam 42 and the connecting rod 1, and the spacer is located between the nut and the connecting rod 1.
It should be noted that the boom 44 passes through the cantilever beam 42 and the connecting rod 1, respectively, and the connecting rod 1 can be fixed by a fastener for fixing the cantilever beam 42 and the boom 44, thereby simplifying the structure of the hanger unit 4.
Above, only the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within range of protection.
Claims (6)
1. The utility model provides a bearing structure that is used for concrete construction of reinforced concrete composite beam bridge cantilever end which characterized in that: comprises a connecting rod (1), a hanger unit (4) and a concrete supporting unit (5);
the number of the hanger units (4) is multiple, the hanger units (4) are arranged at the cantilever end of the steel-concrete composite beam bridge (2) in parallel, and each hanger unit (4) comprises a main supporting column (41), a cantilever beam (42), a supporting beam (43) and a suspension rod (44);
the main supporting column (41) is vertically fixed on the steel box girder (3), the upper end of the main supporting column (41) is detachably connected with one end of the cantilever beam (42), and the other end of the cantilever beam (42) extends to the outer side of the steel box girder (3); the supporting beam (43) is arranged right below the cantilever beam (42), and the supporting beam (43) is detachably connected with the cantilever beam (42) through the suspension rod (44);
the cantilever beams (42) in a plurality of hanger units (4) are all vertically connected with the connecting rod (1) at one end far away from the main supporting column (41); the concrete support unit (5) is provided on the support beam (43) among the plurality of hanger units (4).
2. The supporting structure for concrete construction of the cantilever end of a steel-concrete composite beam bridge according to claim 1, wherein: still be fixed with secondary support column (6) on steel box girder (3), secondary support column (6) are located main tributary dagger (41) with between jib (44), the upper end of secondary support column (6) with cantilever beam (42) are connected.
3. The supporting structure for concrete construction of the cantilever end of a steel-concrete composite beam bridge according to claim 1, wherein: the concrete supporting unit (5) comprises square timbers (51) and rubber plates (52), the number of the square timbers (51) is multiple, the square timbers (51) are laid in parallel, and the rubber plates (52) are laid on the square timbers (51).
4. The supporting structure for concrete construction of the cantilever end of a steel-concrete composite beam bridge according to claim 1, wherein: the hanger rod (44) is sleeved with a PVC pipe.
5. The supporting structure for concrete construction of the cantilever end of a steel-concrete composite beam bridge according to claim 1, wherein: the both ends of jib (44) all are equipped with the external screw thread, the both ends of jib (44) are passed respectively support beam (43) with all be connected with the nut behind the hole on cantilever beam (42), the nut with support beam (43) all be equipped with the gasket between cantilever beam (42).
6. The supporting structure for concrete construction of the cantilever end of a steel-concrete composite beam bridge according to claim 5, wherein: the upper end of the suspension rod (44) positioned at the end part of the cantilever beam (42) respectively penetrates through the cantilever beam (42) and the connecting rod (1) and then is connected with a nut, and the gasket is positioned between the nut and the connecting rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022222237.8U CN213538700U (en) | 2020-10-09 | 2020-10-09 | Supporting structure for concrete construction of cantilever end of steel-concrete composite beam bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022222237.8U CN213538700U (en) | 2020-10-09 | 2020-10-09 | Supporting structure for concrete construction of cantilever end of steel-concrete composite beam bridge |
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| CN213538700U true CN213538700U (en) | 2021-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585075A (en) * | 2021-07-07 | 2021-11-02 | 中建八局第四建设有限公司 | Cast-in-place bridge deck formwork for steel-concrete composite beam |
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2020
- 2020-10-09 CN CN202022222237.8U patent/CN213538700U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585075A (en) * | 2021-07-07 | 2021-11-02 | 中建八局第四建设有限公司 | Cast-in-place bridge deck formwork for steel-concrete composite beam |
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