CN206467577U - Cast-in-place box beam bracket - Google Patents
Cast-in-place box beam bracket Download PDFInfo
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- CN206467577U CN206467577U CN201720035599.1U CN201720035599U CN206467577U CN 206467577 U CN206467577 U CN 206467577U CN 201720035599 U CN201720035599 U CN 201720035599U CN 206467577 U CN206467577 U CN 206467577U
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- steel
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- steel pipe
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- plate
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Abstract
The utility model discloses a kind of cast-in-place box beam bracket, cast-in-place box beam bracket includes basis, the angle post of steel pipe four, sand cylinder, direction across bridge I-steel, indulges bridge to I-steel, transverse direction I-steel, uniform steel pipe, end template, steel truss；When installing sand cylinder, hole door is shut, in built-in back-up sand of stack shell, is smoothly placed on the upper steel plate of the angle post of steel pipe four filling sand and being stoppered the sand of tube plug cylinder；After cast-in-situ box girder concreting is completed, the steel wire rope of hoist engine is enclosed on direction across bridge I-steel securely by the preformed hole of wing plate, holder part more than direction across bridge I-steel is hung；The hole door of each sand cylinder is opened, tube plug falls to producing space, and sand cylinder is unloaded；Then the angle post of steel pipe four is removed；Each hoist engine work, is removed after being fallen earthward under direction across bridge I-steel above section.The utility model solves the problem of existing support stability itself is poor, rigidity is small, deformation is big, dismounting amount is big.
Description
Technical field
The utility model is related to a kind of cast-in-place box beam bracket, belongs to highway and Bridge Construction technical field.
Background technology
In bridge construction technology, on the spot cast-in-situ box girder due to integral rigidity it is big, large carrying capacity, appearance looks elegant and it is flat
The advantages of face is adapted to various linear, is widely applied and develops.In the construction of cast-in-situ box-beam of prior art, typically
Using being abound with formula support.But, it is abound with formula support and all exists in terms of construction quality guarantee, construction safety and operating expenses
Clearly disadvantageous.It is mainly manifested in：
1. it is abound with the insufficient rigidity of formula support
The supporting member for being abound with formula support is mainly the supporting system that bowl fastening type steel pipe and gate-type steel pipe support are constituted, due to
Following reason causes the insufficient rigidity of support：The pipe deformation of bowl fastening type support, bending.Bowl fastening type support is due to number of turnover mistake
The reasons such as many, barbarous disassembling operations, steel pipe can be deformed, and diameter changes, or perpendicularity changes, and can so make
Steel pipe stress produces bias, causes support overall deformation unbalance stress.Because bowl fastening type support longitudinal direction is highly big, cause single limb long
Carefully than becoming big, rack bearing reduced capability.
2. support resistance to overturning is inadequate
Bowl fastening type support due to exist vertical rod bias, bowl button junction combine it is insecure, support built on the sand the problems such as, often
Support unstability occurs and causes security incident.
It is big that 3. the formula support of being abound with sets up workload
The formula support of being abound with, which is set up, to be relied primarily on manually, and the amount of labour used is big, and personal expenditures is high；The processing of ground is needed on bridge
Portion projects following ground all 10 centimeters of concrete floors of laying, and basement process amount is big；Tube material used is more.Integral construction into
This height.
Therefore, solve conventional stent in problem above present on use, develop it is a kind of more efficiently, safety, save
Construction method and structure are imperative.
Utility model content
The purpose of this utility model is to provide a kind of cast-in-place box beam bracket, solves traditional formula mounting system that is abound with and pouring
Build quality, the security of supporting system, stability, rigidity, and construction dismounting workload it is big in terms of the problem of exist.
The purpose of this utility model is achieved by the following technical programs：
A kind of cast-in-place box beam bracket, including basis 1, the angle post 2 of steel pipe four, sand cylinder 3, direction across bridge I-steel 4, vertical bridge are to work
Word steel 5, horizontal I-steel 6, uniform steel pipe 7, end template 8, steel truss 9；
The angle post 2 of steel pipe four includes the upper steel plate 10, lower steel plate 11, four seamless steel pipes 12, four nothings of square
Seam steel pipe 12 is respectively perpendicular the corner for being arranged in lower steel plate 11, and the lower end of the seamless steel pipe 12 is fixedly connected with lower steel plate 11,
The upper steel plate 10 is fixedly connected with the upper end of four seamless steel pipes 12；Between two adjacent seamless steel pipes 12, level welding
Elongate steel plate 13 is used as transverse connection；Set between adjacent two seamless steel pipes 12 oblique lacing 14 respectively with two seamless steel
Pipe 12 is fixedly connected；The upper steel plate 10, four side edge correspondence positions of lower steel plate 11 set 4 preformed holes 15；The steel pipe four
Angle post 2 is multiple, is fixedly connected between the angle post 2 of steel pipe four with channel-section steel is oblique with level；The angle post 2 of steel pipe four is installed
In on basis 1；
Sand cylinder 3 includes bottom plate 16, stack shell 17, tube plug 18, and the bottom plate 16 is square, cylindrical stack shell 17 with
Bottom plate 16 is fixedly connected, and the stack shell 17 is hollow, and the bottom opening for the side that stack shell 17 is fixedly connected with bottom plate 16 is simultaneously provided with work
Dynamic hole door 19；The tube plug 18 includes tube plug body 20, tube plug top plate 21, and the tube plug body 20 is cylinder, tube plug body 20
One end face is fixedly connected with tube plug top plate 21, another end face closing of tube plug body 20, the axial length of the tube plug body 20
Identical with the axial length of stack shell 17, the tube plug body 20 coordinates with the gap of stack shell 17, and tube plug body 20 is stretched into inside stack shell 17；Institute
State sand cylinder 3 to be positioned on the upper steel plate 10 of the angle post 2 of steel pipe four, the direction across bridge I-steel 4 is positioned over horizontally arranged each
On the tube plug top plate 21 of sand cylinder 3 on the angle post 2 of steel pipe four, the upper steel plate of the direction across bridge I-steel 4 and corner tubular steel post 2
10 preformed hole 15 is fixed by spring buckle；Multiple vertical bridges are to I-steel 5 with perpendicular to the placement of the direction of direction across bridge I-steel 4
In on direction across bridge I-steel 4, the infall of vertical bridge to the I-steel 5 and direction across bridge I-steel 4 is fixed using spring buckle, many
Individual horizontal I-steel 6 is positioned over vertical bridge on I-steel 5 with the direction perpendicular to vertical bridge to I-steel 5, multiple uniform steel pipes 7 with
It is positioned over perpendicular to the direction of horizontal I-steel 6 on horizontal I-steel 6, to ride between the uniform steel pipe 7 and horizontal I-steel 6
Horse conch silk is fixed；The end template 8 of cast-in-situ box girder is positioned on uniform steel pipe 7, and the steel truss 9 is positioned on horizontal I-steel 6,
It is fixedly connected between steel truss 9 and horizontal I-steel 6 with spring buckle.
The purpose of this utility model can also further be realized by following technical measures：
Foregoing cast-in-place box beam bracket, wherein basis 1 is made by cement concrete, top surface and bottom surface are square, top
Face area be less than base area, basis 1 top surface the side of position four of the angle post 2 of placing steel tubes four each pre-buried four steel in outside
Muscle 24, the reinforcing bar 24 is higher by the top surface on basis 1.
It is fixedly connected between foregoing cast-in-place box beam bracket, the two section angle posts 2 of steel pipe four using screw through preformed hole 15
Integrated combination is used.
Compared with prior art, the beneficial effects of the utility model are：Solve that existing support stability itself is poor, rigidity
The problem of small, deformation is big, dismounting people's workload is big, the utility model is using the angle post of steel pipe four, sand cylinder and I-steel composition
Supporting system, basement process amount is small, rigidity big, deforms small, stability good, it is ensured that the construction quality of cast-in-situ box girder, it is ensured that
Security in work progress.
Brief description of the drawings
Fig. 1 is existing to be abound with formula rack assumption diagram；
Fig. 2 is cast-in-place box beam bracket structure chart of the present utility model；
Fig. 3 is steel pipe corner corbeling figure of the present utility model；
Fig. 4 is the angle post upper steel plate top view of steel pipe four of the present utility model；
Fig. 5 is basic overlooking structure figure of the present utility model；
Fig. 6 is sand barrel structure figure of the present utility model；
Fig. 7 is fixed connection structure figure between the adjacent angle post of steel pipe four of the utility model.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, being existing to be abound with formula rack assumption diagram.As shown in Fig. 2 being cast-in-situ box girder branch of the present utility model
Frame, including basis 1, the angle post 2 of steel pipe four, sand cylinder 3, direction across bridge I-steel 4, vertical bridge are to I-steel 5, horizontal I-steel 6, uniform
Steel pipe 7, end template 8, steel truss 9.
As shown in figure 3, the angle post 2 of steel pipe four includes the upper steel plate 10, lower steel plate 11, four seamless steel pipes of square
12, four seamless steel pipes 12 are respectively perpendicular the corner for being arranged in lower steel plate 11, lower end and the lower steel plate 11 of the seamless steel pipe 12
It is welded to connect, the upper end of the upper steel plate 10 and four seamless steel pipes 12 is welded to connect；Between two adjacent seamless steel pipes 12,
Horizontal welding spreading bar steel plate 13 is used as transverse connection；Set oblique lacing 14 respectively with two between adjacent two seamless steel pipes 12
Root seamless steel pipe 12 is welded to connect；The upper steel plate 10, four side edge correspondence positions of lower steel plate 11 set 4 preformed holes 15, such as
Shown in Fig. 4, upper steel plate 10, the structure of lower steel plate 11 are consistent；The angle post 2 of steel pipe four is multiple, is used between the angle post 2 of steel pipe four
Channel-section steel is oblique to be fixedly connected with level.Upper steel plate 10, the lower steel plate 11 of the angle post 2 of steel pipe four use 10mm steel plates, the nothing of load-bearing
Seamless steel pipe of the steel pipe 12 using external diameter 89mm is stitched, and tiltedly lacing 14 then uses external diameter for 34mm seamless steel pipe, these components
Between all using welding.In order to be combined into the pillar of a variety of height, the angle post 2 of steel pipe four is designed to that height is 3.0m,
Tri- kinds of models of 2.0m and 1.5m.The effect of the elongate steel plate 13 of level welding is to ensure that the company between four main load-bearing steel pipes
Connect steadiness；The effect one of the oblique lacing of steel pipe be in order to ensure the stable connection between four main load-bearing steel pipes, two be for
Single limb slenderness ratio of the main load-bearing steel pipe of reduction, so as to increase the bearing capacity of pillar.The upper steel plate 10, lower steel plate 11
Preformed hole 15 is set to connect the angle post of two section steel pipe four, is passed through between the two section angle posts 2 of steel pipe four using screw reserved
Hole 15 is fixedly connected into integrated combination and used.
The angle post 2 of steel pipe four is installed on basis 1, and described basic 1 is made by cement concrete, strong concrete
Degree grade is C15.As shown in figure 5, the top surface on basis 1 and bottom surface are square, basic top surface must be smooth.Top surface area is small
In base area, its size should meet the steady placement of the angle post of steel pipe four, and the top surface on basis 1 is in the angle post of placing steel tubes four
Each pre-buried reinforcing bars 24 of four φ 20 in outside on 2 side of position four, the reinforcing bar 24 is higher by the top surface 3-5cm on basis 1 or so, its mesh
Be in order to block the bottom of the angle post of steel pipe four be unlikely to sideslip.
As shown in fig. 6, the sand cylinder 3 includes bottom plate 16, stack shell 17, tube plug 18, the bottom plate 16 is square, cylinder
Stack shell 17 be fixedly connected with bottom plate 16, the stack shell 17 is hollow, and its diameter is generally 30cm.Stack shell 17 is fixed with bottom plate 16 to be connected
The bottom opening of the side connect and the hole door 19 provided with activity；Hole door size is can allow the sand inside sand cylinder freely to flow out and be
Preferably, in normal construction, what hole door 19 was closed, do not flowed out with the sand for ensuring the inside, and when falling frame operation, open hole
Door 19, allows sand to flow out.
The tube plug 18 includes tube plug body 20, tube plug top plate 21, and the tube plug body 20 is cylinder, one of tube plug body 20
End face is fixedly connected with tube plug top plate 21, another end face closing of tube plug body 20, the axial length and cylinder of the tube plug body 20
The axial length of body 17 is identical, and the external diameter of tube plug body 20 should be less than the internal diameter of stack shell 17, coordinates with the gap of stack shell 17, tube plug body
20 stretch into inside stack shell 17；To be advisable with can successfully fill in stack shell and ensure in stack shell that sand does not outflow.
The angle post 2 of steel pipe four has multiple, in matrix arrangement, oblique with channel-section steel between the adjacent angle post 2 of steel pipe four
It is fixedly connected to level, as shown in Figure 7.
The multiple sand cylinder 3 is respectively placed on the upper steel plate 10 of each angle post 2 of steel pipe four, many direction across bridge I-steel 4
On the tube plug top plate 21 for being respectively placed in the sand cylinder 3 on each horizontally arranged angle post 2 of steel pipe four, the direction across bridge I-steel
4 are fixed with the preformed hole 15 of the upper steel plate 10 of corner tubular steel post 2 by spring buckle；Multiple vertical bridges are to I-steel 5 with vertical
It is positioned in the direction of direction across bridge I-steel 4 on direction across bridge I-steel 4, the vertical bridge is to I-steel 5 and direction across bridge I-steel 4
Infall is fixed using spring buckle, multiple horizontal I-steel 6 with the direction perpendicular to vertical bridge to I-steel 5 be positioned over vertical bridge to
On I-steel 5, multiple uniform steel pipes 7 are positioned on horizontal I-steel 6 with the direction perpendicular to horizontal I-steel 6, described uniform
Fixed between steel pipe 7 and horizontal I-steel 6 with spring buckle；The end template 8 of cast-in-situ box girder is positioned on uniform steel pipe 7, described
Steel truss 9 is positioned on horizontal I-steel 6, is fixedly connected between steel truss 9 and horizontal I-steel 6 with spring buckle.
The construction method of cast-in-place box beam bracket of the present utility model, comprises the following steps：
Cast-in-situ box girder wing plate top reservation operations hole 23 before casting concrete, as shown in fig. 7, in striking
Through the steel wire rope of hoist engine.
Each part of mounting bracket successively upwards is started by basis during construction, when installing sand cylinder 3, hole 19 is shut, in cylinder
The sand cylinder 3 for filling sand and be stoppered tube plug 18, is smoothly placed on steel pipe corner by the sand of filling stack shell height 1/3 in body 17
On the upper steel plate 10 of pillar 2, then by direction across bridge I-steel 4, vertical bridge to I-steel 5, horizontal I-steel 6, uniform steel pipe 7, bottom
The parts such as template 8, steel truss are installed upwards successively.Cast-in-situ box girder concreting is carried out after installing.
After cast-in-situ box girder concreting is completed, the dismounting of support is carried out, also is frame, including：
1) install frame hoist engine, and the steel wire rope of hoist engine is enclosed on direction across bridge securely by the preformed hole 23 of wing plate
On I-steel 4, start all hoist engines, hang the holder part of direction across bridge I-steel more than 4, make the whole itself of frame upper
Weight is all undertaken by the steel wire rope of each hoist engine.At this moment, even if the supporting without support substructure, the superstructure of support
Do not fall out.
2) sand cylinder 3 is removed：
Before sand cylinder 3 is removed, the spring buckle between direction across bridge I-steel 4 and the angle post 2 of steel pipe four should be removed first；
The hole door 19 of each sand cylinder 3 is opened, allows the sand of sand cylinder interior 3 to flow out, with the outflow of sand, the tube plug of sand cylinder 3
18 fall, and the tube plug top plate 21 of sand cylinder 3 produces space with the bottom of direction across bridge I-steel 4, when space is sufficiently large, by sand cylinder 3
Unload；
3) angle post 2 of steel pipe four is removed：
After sand cylinder 3 is unloaded, form enough spaces and be easy to remove the angle post 2 of steel pipe four, horizontal connection channel-section steel is removed first
With oblique contact channel-section steel, the angle post 2 of steel pipe four is then removed again；
It after the angle post 2 of steel pipe four is removed, will all be emptied below bridge, prepare to remove the branch of direction across bridge I-steel more than 4
Frame part；
4) each hoist engine works simultaneously, synchronous slow whereabouts, will fall on ground under the holder part of direction across bridge I-steel more than 4
Behind face, form removal and support.
The utility model has advantages below compared with prior art：
1. operating expenses is saved：
By the basement process expense set up to support, labour cost and fee of material comparative analysis, limited bracket of the present utility model
Construction system saves 19% than being abound with the operating expenses of formula support.The steel pipe service life cycle for being abound with formula support is considerably less than less
Strutting system, the steel pipe of bowl fastening type support is often hit and damaged in construction, and the Each part of limited bracket is not deposited
In these problems.
2. bearing capacity is better than the formula that is abound with bowl button support：
Slenderness ratio of the bowl fastening type support due to steel pipe in itself is big, and bearing capacity is seriously restricted, in cast-in-situ box girder weight
Deformation of timbering increases when big, and limited bracket system is greatly increased and held by the robust design of the angle post of steel pipe four
Loading capability, its bearing capacity increases up to 150% than bowl fastening type support.
3. construction quality is guaranteed：
Be abound with traditional in formula bowl button support, support load-carrying member under the cast-in-situ box girder structure type being commonly designed,
The average amount of deflection of theory is in 1.1cm or so, and in this limited bracket structure, and the average amount of deflection of theory of any I-steel is no more than
0.5cm。
In practice of construction, traditional bowl button support installs actual measurement inelastic deformation up to 30mm, and elastic deformation is up to
1.2cm, and limited bracket system is between each several part due to being completely embedded, inelastic deformation at most only has 6mm, and elastic deformation is no more than
2mm。
Bowl fastening type deformation of timbering amount is big, and newly-laid concrete can be caused to produce crack and outward appearance because internal tension is concentrated
The quality problems such as out-of-flatness.The utility model eliminates the deflection of support, will not cause newly to pour coagulation because of deformation of timbering
The inside tension of soil is concentrated, so as to produce crack, it is ensured that construction quality.Further, since supporting structure deforms small, template
It will not deform, the concrete surface for pouring completion is smooth, and presentation quality is excellent.
4. safety is secure：
In recent years, the security incident produced due to the extensive use of bowl fastening type support is emerged in an endless stream, in bowl fastening type support
There is situations such as bending, support are with supporting the lumps of wood or not closely connected channel-section steel in any one upright steel pipe, is likely to cause adjacent steel
Pipe load is excessive and exceedes the bearing capacity of itself, causes local pressure uneven, can not only cause template local deformation big, make
The concrete surface out-of-flatness poured, it is also possible to cause butterfly chain reaction, makes support overall collapse, collapses.
Bearing capacity of each component of the utility model itself is improved significantly, and each position support is completely embedded, its rigidity, intensity
Safe construction has all been reliably ensure that with stability.
In summary, no matter the utility model cast-in-situ box girder limited bracket supporting system is protected from economy, security and quality
All it is substantially better than in terms of card and is abound with formula strutting system.
In addition to the implementation, the utility model can also have other embodiment, all use equivalent substitutions or equivalent change
The technical scheme to be formed is changed, in the protection domain for all falling within the utility model requirement.
Claims (3)
1. a kind of cast-in-place box beam bracket, it is characterised in that including the basis, angle post of steel pipe four, sand cylinder, direction across bridge I-steel, vertical
Bridge is to I-steel, horizontal I-steel, uniform steel pipe, end template, steel truss；
The angle post of steel pipe four includes the upper steel plate, lower steel plate, four seamless steel pipes of square, and four seamless steel pipes hang down respectively
The straight corner for being arranged in lower steel plate, the lower end of the seamless steel pipe is fixedly connected with lower steel plate, the upper steel plate and four it is seamless
The upper end of steel pipe is fixedly connected；Between two adjacent seamless steel pipes, horizontal welding spreading bar steel plate is used as transverse connection；Phase
Oblique lacing is set to be fixedly connected respectively with two seamless steel pipes between adjacent two seamless steel pipes；The four of the upper steel plate, lower steel plate
Edge correspondence position in side sets 4 preformed holes；The angle post of steel pipe four to be multiple, between the angle post of steel pipe four with channel-section steel it is oblique and
Level is fixedly connected；On the basis of the angle post of steel pipe four is installed on；
The sand cylinder includes bottom plate, stack shell, tube plug, and the bottom plate is square, and cylindrical stack shell is fixedly connected with bottom plate, institute
State the bottom opening for the side that stack shell is hollow, and stack shell is fixedly connected with bottom plate and the hole door provided with activity；The tube plug includes cylinder
Cock body, tube plug top plate, the tube plug body are cylinder, and an end face of tube plug body is fixedly connected with tube plug top plate, tube plug body
Another end face is closed, and the axial length of the tube plug body is identical with the axial length of stack shell, the tube plug body and stack shell gap
Coordinate, tube plug body is stretched into inside stack shell；The sand cylinder is positioned on the upper steel plate of the angle post of steel pipe four, the direction across bridge I-steel
On the tube plug top plate for being positioned over the sand cylinder on each horizontally arranged angle post of steel pipe four, the direction across bridge I-steel and four angle steel
The preformed hole of the upper steel plate of tube support is fixed by spring buckle；Multiple vertical bridges are to I-steel with perpendicular to direction across bridge I-steel
Direction is positioned on direction across bridge I-steel, and the vertical bridge is solid using spring buckle to the infall of I-steel and direction across bridge I-steel
Fixed, multiple horizontal I-steel perpendicular to vertical bridge to be positioned over vertical bridge to the direction of I-steel on I-steel, multiple uniform steel pipes
It is positioned over the direction perpendicular to horizontal I-steel on horizontal I-steel, to ride between the uniform steel pipe and horizontal I-steel
Screw is fixed；The end template of cast-in-situ box girder is positioned over uniform steel pipe, and the steel truss is positioned on horizontal I-steel, steel truss with
It is fixedly connected between horizontal I-steel with spring buckle.
2. cast-in-place box beam bracket as claimed in claim 1, it is characterised in that the basis is made by cement concrete,
Top surface and bottom surface are square, and top surface area is less than base area, and basic top surface is in the position four of the angle post of placing steel tubes four
Each pre-buried four reinforcing bars in outside on side, the reinforcing bar is higher by the top surface on basis.
3. cast-in-place box beam bracket as claimed in claim 1, it is characterised in that worn between the two section angle posts of steel pipe four using screw
Cross preformed hole and be fixedly connected into integrated combination and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720035599.1U CN206467577U (en) | 2017-01-12 | 2017-01-12 | Cast-in-place box beam bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720035599.1U CN206467577U (en) | 2017-01-12 | 2017-01-12 | Cast-in-place box beam bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206467577U true CN206467577U (en) | 2017-09-05 |
Family
ID=59705476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720035599.1U Expired - Fee Related CN206467577U (en) | 2017-01-12 | 2017-01-12 | Cast-in-place box beam bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206467577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758846A (en) * | 2017-01-12 | 2017-05-31 | 江苏省交通技师学院 | Cast-in-place box beam bracket and construction method |
| CN107558382A (en) * | 2017-10-16 | 2018-01-09 | 中交路桥建设有限公司 | A kind of heavy type truss pipe support system |
-
2017
- 2017-01-12 CN CN201720035599.1U patent/CN206467577U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758846A (en) * | 2017-01-12 | 2017-05-31 | 江苏省交通技师学院 | Cast-in-place box beam bracket and construction method |
| CN107558382A (en) * | 2017-10-16 | 2018-01-09 | 中交路桥建设有限公司 | A kind of heavy type truss pipe support system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20200112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |