CN208201663U - Overlapped beam of continuous rigid frame bridge box girder 0# block corbel-free cast-in-place support - Google Patents
Overlapped beam of continuous rigid frame bridge box girder 0# block corbel-free cast-in-place support Download PDFInfo
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- CN208201663U CN208201663U CN201820761855.XU CN201820761855U CN208201663U CN 208201663 U CN208201663 U CN 208201663U CN 201820761855 U CN201820761855 U CN 201820761855U CN 208201663 U CN208201663 U CN 208201663U
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- 239000000203 mixture Substances 0.000 claims description 3
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- 230000009194 climbing Effects 0.000 abstract 1
- 238000009415 formwork Methods 0.000 abstract 1
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- 239000004576 sand Substances 0.000 description 3
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Abstract
The utility model relates to the technical field of bridge high pier climbing formwork, and provides a 0# block corbel-free cast-in-place bracket overlapping beam of a continuous rigid frame bridge box girder, which comprises two pier columns arranged along the bridge direction, wherein the tops of the pier columns are composed of pier top platforms and reserved gap platforms positioned at the two ends of the pier top platforms; each reserved gap platform is provided with a sand box; a lower-layer main bearing beam is arranged on the sand box positioned on the same side of the two pier studs along the bridge direction, and a plurality of transverse distribution beams are arranged on the lower-layer main bearing beam; the transverse distribution beam is provided with an upper layer of overlapped beams; the upper overlapped beams on the upper layers of the two sides of the pier stud are provided with upper cross beams; the upper cross beam is provided with a plurality of longitudinal distribution beams. Compared with the prior art, the utility model discloses a continuous rigid frame bridge box girder 0# piece does not have the superimposed girder of cast-in-place support of bracket, need not to set up the built-in fitting on the pier stud, also need not to set up the triangular bracket to avoid carrying out the operation of welding and cutting in the high altitude, not only increased constructor's security, shortened construction cycle moreover.
Description
Technical field
The utility model relates to technical field of bridge construction, especially a kind of continuous rigid frame bridge box beam 0# block is cast-in-place without bracket
Bracket is overlapped beam.
Background technique
In bridge construction, cast-in-situ continuous beam form of construction work is varied, and the continuous beam for crossing over extreme terrain mostly uses
Hanging basket cantilever mode is constructed.In hanging basket cantilever construction, it is necessary to first pour 0# block on pier stud, reach rule to 0# bulk strength
After definite value, then using 0# block as operating platform, the machinery of installation on it, Hanging Basket etc. are symmetrically poured or are assembled 1# block, 2#
Block etc..The construction of continuous rigid frame bridge box beam 0# block is the important stage for realizing pier consolidation, to the falsework system of 0# block into
The design of row rationally, economic, safe guarantees stability, the safety of 0# block bracket, and so that bridge completion state is reached design requirement seems
It is particularly important.Although bracket is temporary structure, it is the platform of 0# block construction, bears most of pour weight and construction lotus
It carries, its deformation size plays conclusive effect to 0# block mould absolute altitude, so on the one hand to guarantee bracket in construction period
With enough safeties, while the deformation of bracket is controlled, guarantee smoothly completing for 0# block construction.
Method more commonly used in the construction of 0# block at present are as follows: built-in fitting is set on pier stud, three are welded on built-in fitting
Angle bracket sets up main beam, steel truss and transverse distribution beam on shelf bracket, then sets up template in vertical, horizontal distribution beam
Deng composition support system, pouring for 0# block is then carried out, after pouring, after the intensity of 0# block reaches specified value, removes branch
Frame.But this method has the following problems: before the construction of 0# block, needing for shelf bracket to be welded on the built-in fitting of pier stud；0#
After block construction, need again to cut away shelf bracket from built-in fitting；These operations require to be operated in high-altitude, not only increase
Construction intensity is added, and the safety in work progress is reduced.After A-frame cutting simultaneously, it cannot reuse,
Waste disposal can only be worked as, increase the cost of entire project.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of continuous rigid frame bridge box beam 0# blocks without the cast-in-place branch of bracket
Frame is overlapped beam, is constructed using the device to 0# block, can enhance the safety in work progress.
The technical scheme adopted by the utility model to solve the technical problem is as follows: continuous rigid frame bridge box beam 0# block is existing without bracket
Bracket overlapping beam is poured, including two pier studs along bridge to setting；The top of each pier stud by pier top platform and is located at along direction across bridge
The future insufficiency platform at pier top platform both ends is constituted；Sandbox is provided on each future insufficiency platform；Positioned at two pier studs
Along along bridge, to being provided with the main spandrel girder of lower layer, the main spandrel girder of lower layer is by five lower stringers being set side by side on ipsilateral sandbox
Composition；Several transverse distribution beams are provided on the main spandrel girder of lower layer；On the transverse distribution beam along bridge to being provided with
Upper layer is overlapped beam；The upper layer overlapping beam includes two upper longitudinal beams being set side by side and the distribution being arranged at the top of two upper longitudinal beams
Plate；Several upper beams are provided on the upper layer overlapping beam of the pier stud two sides；Several longitudinal directions are provided on the upper beam
Distribution beam.
Further, five lower stringers are fixedly connected by detachable structure；The detachable structure includes setting
Five lower stringer two sides to pulling block and the split bolt being arranged in above and below lower stringer；Two split bolts
Both ends are each passed through to pulling block and connect with nut thread.
Further, several transverse distribution beams are spaced setting on the main spandrel girder of lower layer；Two neighboring transverse distribution beam
Between spacing be 0.3~0.5m.
Further, the spacing between two neighboring transverse distribution beam is 0.4m.
Further, each transverse distribution beam includes two symmetrically arranged channel steels；It is mouth that two channel steels, which constitute cross section,
The structure of font.
Further, several upper beams are spaced setting in upper longitudinal beam；Spacing between two neighboring upper beam is 0.3
~0.5m.
Further, the spacing between two neighboring upper beam is 0.4m.
Further, projection of the upper layer overlapping beam on the main spandrel girder of lower layer is located at the interposition of the main spandrel girder of lower layer
Set place.
The beneficial effects of the utility model are: compared with prior art, continuous rigid frame bridge box beam described in the utility model
0# block is overlapped beam without bracket cast-in-place support, it is not necessary that built-in fitting is arranged on pier stud, without setting up shelf bracket, so as to avoid
In the operation that high-altitude is welded and is cut, the safety of construction personnel is not only increased, and shortens construction period；This reality
With novel holder device, not only speed of application is fast, convenient disassembly, and all material can be reused, and has saved construction
Cost.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model；
Fig. 2 is the structural schematic diagram of pier stud in the utility model；
Fig. 3 is the front view of the utility model；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the enlarged drawing in Fig. 4 at A；
Fig. 6 is the structural schematic diagram after 0# block pours in the utility model.
Appended drawing reference in figure are as follows: 1- pier stud, 2- sandbox, stringer under 3-, 4- detachable structure, 5- transverse distribution beam, on 6-
Stringer, 7- upper beam, 8-0# block, the longitudinal direction 9- distribution beam, 10- distribution plate, 11- pier top platform, 12- future insufficiency platform, 41- pairs
Pulling block, 42- split bolt, 43- nut.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
As shown in Figures 1 to 6, continuous rigid frame bridge box beam 0# block described in the utility model is overlapped without bracket cast-in-place support
Beam, including two pier studs 1 along bridge to setting；It is put down along direction across bridge by pier top platform 11 and positioned at pier top at the top of each pier stud 1
The future insufficiency platform 12 at 11 both ends of platform is constituted；The future insufficiency platform 12 is arranged lower than pier top platform 11；It is each described pre-
It stays and is provided with sandbox 2 on notch platform 12；On the sandbox 2 ipsilateral positioned at two pier studs 1 along bridge to being provided with the main load-bearing of lower layer
Beam, the main spandrel girder of lower layer are made of five be set side by side lower stringers 3；Several are provided on the main spandrel girder of lower layer
Transverse distribution beam 5；Beam is overlapped to upper layer is provided with along bridge on the transverse distribution beam 5；The upper layer overlapping beam includes arranged side by side
Two upper longitudinal beams 6 being arranged and the distribution plate 10 being arranged at the top of two upper longitudinal beams 6；The upper layer of 1 two sides of pier stud is overlapped beam
On be provided with several upper beams 7；Several longitudinal distribution beams 9 are provided on the upper beam 7.
0# block 8 is carried out without bracket cast-in-place support overlapping beam using continuous rigid frame bridge box beam 0# block described in the utility model
Construction, comprising the following steps:
1, along suitable bridge to two pier studs 1 are poured, when pouring pier stud 1, in the wide 0# block 8 out in the top two sides of each pier stud 1
Part reserve certain concrete height, form future insufficiency platform 12, and support entire bracket using the future insufficiency platform 12
Device.
2, on each future insufficiency platform 12, at least one sandbox 2, depending on the quantity of sandbox 2 is as needed, institute are set
It states sandbox 2 and is used to support the main spandrel girder of lower layer, after 0# block 8 is constructed, need to only dig out the sand in sandbox 2, can reduce
The height of entire holder device, bracket easy to dismantle.
3, on the sandbox 2 of two 1 two sides of pier stud along bridge to the main spandrel girder of lower layer, each main load-bearing of lower layer is respectively set
Beam is across two pier studs 1 and its both ends extend out to the outside of pier stud 1.Specifically, five lower stringers 3 are disposed in parallel in two
It on the ipsilateral sandbox 2 of pier stud 1 and is connected to one, increases the stability of the main spandrel girder entirety of lower layer；The lower stringer 3
It can be the profiles such as I-steel, channel steel, square steel.
4, then several transverse distribution beams 5 are set on the main spandrel girder of each lower layer, each transverse distribution beam 5 perpendicular to
Lower stringer 3 is arranged, and the transverse distribution beam 5 can be the profiles such as I-steel, channel steel, square steel；By the way that transverse distribution beam 5 is arranged,
Make the stress of the main spandrel girder of lower layer more evenly.
5, it then is overlapped beam to setting upper layer along bridge on the ipsilateral transverse distribution beam 5 of pier stud 1, upper layer is overlapped the both ends of beam
It extend out to the outside of pier stud 1.Specifically, two upper longitudinal beams 6 are disposed in parallel on the ipsilateral transverse distribution beam 5 of two pier studs 1,
And distribution plate 10 is set in two upper longitudinal beams 6, the distribution plate 10 is contacted with the top of two upper longitudinal beams 6 simultaneously；Described point
Matching board 10 can be placed directly in the top of two upper longitudinal beams 6, can also be fixedly connected with two upper longitudinal beams 6.The upper longitudinal beam 6 can
To be the profiles such as I-steel, channel steel, square steel, the distribution plate 10 can be band steel, steel plate etc..It is overlapped beam by setting upper layer,
The bearing capacity of whole device is increased, the power that upper longitudinal beam 6 is born is assigned on main spandrel girder by transverse distribution beam 5, then
It is assigned on sandbox 2, and is transmitted on pier stud 1.By the way that distribution plate 10 is arranged, load is transmitted to simultaneously and is set side by side
In two upper longitudinal beams 6, so that the stress of upper longitudinal beam 6 is more reasonable.
6, several upper beams 7 are set on the distribution plate 10 of the upper layer overlapping beam of 1 two sides of pier stud, upper beam 7 perpendicular to
Upper longitudinal beam 6 is arranged；The both ends of the upper beam 7 extend out to the outside of pier stud 1 respectively.The upper beam 7 can be I-steel, slot
The profiles such as steel, square steel.Upper beam 7 is mainly distributed in the upper longitudinal beam 6 between two pier studs 1, while being stretched at the both ends of upper longitudinal beam 6
Some upper beams 7 are also distributed at the position of pier stud 1 out.
7, several longitudinal distribution beams 9 are then laid on upper beam 7, longitudinal distribution beam 9 is divided for three parts, wherein one
Set up separately on the upper beam 7 set between two pier studs 1, in addition two parts are arranged on the upper beam 7 outside pier stud 1.It is described
Longitudinal distribution beam 9 can be the profiles such as I-steel, channel steel, square steel.It is laid with bed die and other brackets in longitudinal distribution beam 9, pours
Build 0# block 8.By the longitudinal distribution beam 9 of setting, evenly distribute the weight of bed die, other brackets and 0# block 8 on upper beam 7,
Make all upper beams 7 can stress, improve the stability of device.
8, after 0# block 8 reaches corresponding intensity, the sand in sandbox 2 is dug out, reduces the height of entire holder device, so
Holder device is removed afterwards.
Compared with prior art, continuous rigid frame bridge box beam 0# block described in the utility model is overlapped without bracket cast-in-place support
Beam, without shelf bracket is set up, is welded and is cut so as to avoid in high-altitude it is not necessary that built-in fitting is arranged on pier stud 1
Operation, not only increase the safety of construction personnel, and shorten construction period；The holder device of the utility model is not only
Speed of application is fast, convenient disassembly, and all material can be reused, and construction cost has been saved.
The main spandrel girder of lower layer is disassembled and installed for convenience, five lower stringers 3 are solid by detachable structure 4
Fixed connection；The detachable structure 4 include be arranged in five lower 3 two sides of stringer to pulling block 41 and be arranged on lower stringer 3
The split bolt 42 of side and lower section；The both ends of two split bolts 42 are each passed through to pulling block 41 and are threadedly coupled with nut 43.
In use, tightening nut 43, five lower stringers 3 can be connected to one to pulling block 41 by two.It is this detachable
Structure 4 does not need that through-hole, more convenient operation is arranged on lower stringer 3.
To make whole device uniform force, several transverse distribution beams 5 are spaced setting on main spandrel girder；Two neighboring cross
It is 0.3~0.5m to the spacing between distribution beam 5.Preferably, the spacing between two neighboring transverse distribution beam 5 is
0.4m.Each transverse distribution beam 5 includes two symmetrically arranged channel steels；Two channel steels constitute the structure that cross section is square shape,
Increase the structural strength of transverse distribution beam 5.Several upper beams 7 are spaced setting in upper longitudinal beam 6；Two neighboring upper beam 7
Between spacing be 0.3~0.5m.Preferably, the spacing between two neighboring upper beam 7 is 0.4m.
Projection of the upper longitudinal beam 6 on main spandrel girder is located at the middle position of main spandrel girder.Such setting can be with
The gravity that upper longitudinal beam 6 is born is uniformly distributed on main spandrel girder by transverse distribution beam 5, improves the safety of device
Performance.
Embodiment:
Certain construction site, each pier stud 1 Yan Shunqiao to width be 3.2m, the width along direction across bridge is 8.5m, and bridge
The width along direction across bridge of 8 bottom of box beam 0# block is 6.5m, that is to say, that along direction across bridge, 8 bottom of two sides ratio 0# block of pier stud 1
It is high to be reserved 2.3m concrete when pouring pier stud 1 for the part for making full use of the width to go out by wide 1m for the wide part out of each pier stud 1
Degree, as future insufficiency platform 12, which carries out building concrete after the completion of the construction of 0# block 8 again, and utilizes the future insufficiency
Platform 12 is used as main spandrel girder fulcrum, forms bracket, the specific steps are as follows:
1, four sandboxes 2 are set on each future insufficiency platform 12 of pier stud 1, on the ipsilateral sandbox 2 of two pier studs 1
Five I-steel are respectively arranged as the main spandrel girder of lower layer, is fixed, is made with split bolt every a distance on five I-steel
Five I-steel have certain globality.
2, transverse distribution beam 5 is arranged with channel steel spacing 0.4m on the main spandrel girder of lower layer, transverse distribution beam 5 is perpendicular to lower layer
Main spandrel girder setting；Two I-steel are set on the transverse distribution beam 5 of the every side of pier stud 1 as upper longitudinal beam 6, and in even root I-shaped
Band steel is set on steel as distribution plate 10.
3, then arrange that upper beam 7, upper beam 7 are vertical with I-steel spacing 0.4m on the distribution plate 10 of 1 two sides of pier stud
It is arranged in upper longitudinal beam 6；Longitudinal distribution beam 9 is arranged with channel steel on upper beam 7, and in longitudinal distribution beam 9 arrangement plank as 0#
The bed die of block 8, and arrange other brackets, then pour 0# block 8.
4, after 0# block 8 reaches corresponding intensity, the sand in sandbox 2 is dug out, reduces the height of entire holder device, so
Holder device is removed afterwards, then the 2.3m concrete height reserved on pier stud 1 is carried out building concrete.
Claims (8)
1. continuous rigid frame bridge box beam 0# block is overlapped beam without bracket cast-in-place support, it is characterised in that: including two along bridge to setting
Pier stud (1)；The top of each pier stud (1) by pier top platform (11) and is located at the reserved scarce of pier top platform (11) both ends along direction across bridge
Mouth platform (12) is constituted；Sandbox (2) are provided on each future insufficiency platform (12)；It is ipsilateral positioned at two pier studs (1)
Along along bridge, to the main spandrel girder of lower layer is provided with, the main spandrel girder of lower layer is by five be set side by side lower stringers (3) on sandbox (2)
Composition；Several transverse distribution beams (5) are provided on the main spandrel girder of lower layer；On the transverse distribution beam (5) along bridge to
It is provided with upper layer overlapping beam；The upper layer overlapping beam includes two upper longitudinal beams (6) being set side by side and is arranged in two upper longitudinal beams
(6) distribution plate (10) at the top of；Several upper beams (7) are provided on the upper layer overlapping beam of pier stud (1) two sides；On described
Several longitudinal distribution beams (9) are provided on crossbeam (7).
2. continuous rigid frame bridge box beam 0# block according to claim 1 is overlapped beam without bracket cast-in-place support, it is characterised in that: institute
Five lower stringers (3) are stated to be fixedly connected by detachable structure (4)；The detachable structure (4) includes being arranged under five to indulge
The split bolt (42) to pulling block (41) and setting above and below lower stringer (3) of beam (3) two sides；Two to drawing spiral shell
The both ends of bolt (42) are each passed through to pulling block (41) and are threadedly coupled with nut (43).
3. continuous rigid frame bridge box beam 0# block according to claim 1 or 2 is overlapped beam without bracket cast-in-place support, feature exists
In: several transverse distribution beams (5) are spaced setting on the main spandrel girder of lower layer；Between between two neighboring transverse distribution beam (5)
Away from for 0.3~0.5m.
4. continuous rigid frame bridge box beam 0# block according to claim 3 is overlapped beam without bracket cast-in-place support, it is characterised in that: phase
Spacing between adjacent two transverse distribution beams (5) is 0.4m.
5. continuous rigid frame bridge box beam 0# block according to claim 1 or 2 is overlapped beam without bracket cast-in-place support, feature exists
In: each transverse distribution beam (5) includes two symmetrically arranged channel steels；Two channel steels constitute the structure that cross section is square shape.
6. continuous rigid frame bridge box beam 0# block according to claim 1 or 2 is overlapped beam without bracket cast-in-place support, feature exists
In: several upper beams (7) are spaced setting on upper longitudinal beam (6)；Spacing between two neighboring upper beam (7) is 0.3~
0.5m。
7. continuous rigid frame bridge box beam 0# block according to claim 6 is overlapped beam without bracket cast-in-place support, it is characterised in that: phase
Spacing between adjacent two upper beams (7) is 0.4m.
8. continuous rigid frame bridge box beam 0# block according to claim 1 or 2 is overlapped beam without bracket cast-in-place support, feature exists
In: projection of the upper layer overlapping beam on the main spandrel girder of lower layer is located at the middle position of the main spandrel girder of lower layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820761855.XU CN208201663U (en) | 2018-05-21 | 2018-05-21 | Overlapped beam of continuous rigid frame bridge box girder 0# block corbel-free cast-in-place support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820761855.XU CN208201663U (en) | 2018-05-21 | 2018-05-21 | Overlapped beam of continuous rigid frame bridge box girder 0# block corbel-free cast-in-place support |
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| Publication Number | Publication Date |
|---|---|
| CN208201663U true CN208201663U (en) | 2018-12-07 |
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ID=64518868
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820761855.XU Active CN208201663U (en) | 2018-05-21 | 2018-05-21 | Overlapped beam of continuous rigid frame bridge box girder 0# block corbel-free cast-in-place support |
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| Country | Link |
|---|---|
| CN (1) | CN208201663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195800A (en) * | 2020-09-23 | 2021-01-08 | 四川川交路桥有限责任公司 | No. 0 block longitudinal support-free construction method for suspension casting bridge |
-
2018
- 2018-05-21 CN CN201820761855.XU patent/CN208201663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195800A (en) * | 2020-09-23 | 2021-01-08 | 四川川交路桥有限责任公司 | No. 0 block longitudinal support-free construction method for suspension casting bridge |
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