CN206971086U - Cast-in-situ box girder side web and wing plate are integrally supported frame - Google Patents
Cast-in-situ box girder side web and wing plate are integrally supported frame Download PDFInfo
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- CN206971086U CN206971086U CN201720471705.0U CN201720471705U CN206971086U CN 206971086 U CN206971086 U CN 206971086U CN 201720471705 U CN201720471705 U CN 201720471705U CN 206971086 U CN206971086 U CN 206971086U
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Abstract
It the utility model is related to cast-in-situ box girder side web and wing plate be integrally supported frame, chassis is horizontally disposed with, one end of web support bar is flexibly connected with one end of chassis, the other end of web support bar is flexibly connected with one end of wing plate support bar, one end of wing plate adjusting rod is flexibly connected with the other end of chassis, and the other end of wing plate adjusting rod is flexibly connected with the other end of wing plate support bar；One end of web adjusting rod is flexibly connected with the waist of web support bar, and the other end of web adjusting rod is flexibly connected with chassis；The adjustable in length of web support bar, wing plate adjusting rod and web adjusting rod.The side web of cast-in-situ box girder and wing plate support are individually spun off and are designed as tool-type support by the utility model, it is more simpler than conventional stent it is quick, be easy to control, overcome box beam side web and wing plate support in work progress and take and tear cumbersome technical problem open, and save material.
Description
Technical field
The utility model belongs to bridge construction technology field, is related to the branch of side web, wing plate in cast-in-situ box girder bridge construction
Support structure.
Background technology
With China's communication and the fast development of urban construction, particularly continue to develop in traffic transport industry and
In the case of traffic flow is ever-increasing, a large amount of grade separations and level-crossing bridge have been built.Overpass and viaduct lead in main bridge
Ring road, main line lead to the junction of branch line, it usually needs set and become the gradient, variable curvature, the fork connected section of Trapezoidal, then
Generate the irregular bridge of many plane geometric shapes.
The construction of special-shaped section is mainly realized by the bracket adjustment of the following web of bridge and wing plate at present, cast-in-situ box girder side abdomen
Plate does not distinguish with wing plate support, identical with cast-in-situ box girder chamber lower carriage and be integrated.China since the 1960s with
To begin to use fastener type steel pipe scaffold, the scaffold that is made up of fastener and steel pipe etc., because it has simple processing, construction
The advantages that technical requirements are low, convenient in carrying, high, cheap versatility, greatly development and application are obtained, at present, is still accounted for
According to the market of China more than 70%.Design of coupler scaffold has obtained popularization and application in cast-in-situ box girder all round victory support.
Conventional cast-in-place box beam side web and wing plate support frame set up mode and set up mode except spacing becomes with box beam beam lower supporter
Outside the pale of civilization to have no other differences, existing subject matter is：
1st, it is cumbersome to set up mode, complicated and waste of materials；
2nd, the wide transition box beam of cast-in-situ box girder bridge is more (bend section, track change section, main line connect ring road section etc.), side web
And linear more changes at wing plate.It is big that difficulty is adjusted at conventional support frame side web and wing plate, influences efficiency of construction during construction, it is linear
It is unmanageable, the final constructional appearance quality for influenceing box beam entity；
3rd, the mode of setting up of conventional support frame compares beneficial to bearing load, but load very little at box beam side web and wing plate,
Its rack bearing power is set up using usual manner and is far above its operating mode load, and increase rod member spacing is then unfavorable for control structure change
Shape, that is to say, that conventional support frame, which is used at cast-in-situ box girder side web and wing plate, to be had the effect of suitable and waste.
Domestic at present not yet individually designed to cast-in-situ box girder side web and the progress of wing plate support, conventional cast-in-place box beam bracket is taken
If mode such as Fig. 1.
The content of the invention
The utility model for conventional support frame at the cast-in-situ box girder side web and wing plate existing for set up mode cumbersome, it is multiple
Miscellaneous, waste of materials, regulation difficulty be big and linear unmanageable technical problem, and the utility model proposes a kind of adjustable pin type
Cast-in-situ box girder side web and wing plate tool are integrally supported frame.
Technical solution of the present utility model is：
Cast-in-situ box girder side of the present utility model web and wing plate are integrally supported frame, and it is characterized in that：
The integral support frame includes chassis, wing plate support bar, web support bar, wing plate adjusting rod and at least one web
Adjusting rod, the chassis are horizontally disposed with, and one end of the web support bar is flexibly connected with one end of chassis, the web support
The other end of bar is flexibly connected with one end of wing plate support bar, and one end of the wing plate adjusting rod and the other end activity of chassis are even
Connect, the other end of the wing plate adjusting rod is flexibly connected with the other end of wing plate support bar；One end of the web adjusting rod with
The waist of web support bar is flexibly connected, and the other end of the web adjusting rod is flexibly connected with chassis；The web support bar,
The adjustable in length of wing plate adjusting rod and web adjusting rod.
It is basic structure of the present utility model above, following optimization limit is also made based on the basic structure the utility model
It is fixed：
For the convenience of regulation, above-mentioned chassis, wing plate support bar, web support bar, wing plate adjusting rod and web regulation
Connected between bar by bearing pin.The lower end of web support bar is provided with screwed hole, and is connected with screw rod, and tune is additionally provided with screw rod
Nut is saved, screw rod is connected by bearing pin connection member with chassis.The both ends of wing plate adjusting rod are each provided with a silk mouth, two silks
Mouth is in opposite direction, and a screw rod is each provided with each silk mouth, and screw rod is corresponded to and wing plate supporting plate and bottom by bearing pin connection member
Frame connects.The both ends of the web adjusting rod are each provided with a silk mouth, and two silk mouths are in opposite direction, are each provided with each silk mouth
One screw rod, screw rod are connected by the way that bearing pin connection member is corresponding with web support bar and chassis.
Further, the flexing resistance of frame is integrally supported in order to improve, wing plate support bar of the present utility model and web branch
Strut is square steel tube, and 2 times that a height of pipe of the transversal facial canal of square steel tube is wide.In the case of same cross-sectional area, such a Box Section supports
Anti- square is big compared with circular hollow section resistance moment, that is to say, that this pipe anti-bending strength is more excellent.
Compared with prior art, advantage is the utility model：
1st, simple and fast：The side web of cast-in-situ box girder and wing plate support are individually spun off and are designed as work by the utility model
Tool formula support, it is more simpler than conventional stent it is quick, be easy to control, overcome box beam side web and wing plate support in work progress
Take and tear cumbersome technical problem open.
As shown in Figure 2, conventional support frame single section at box beam side web and wing plate needs to set up 6 vertical rods, 3
Brace, 3 cross bars, finally it is combined and sets up as a support body.And a support body is then only needed using this support frame, frame
Body has been just an entirety after machining.
2nd, material is saved：The utility model support frame abandons the structure stress form of conventional bracket jacking carrying, by jacking
Bearing mode is changed to jacking and carrying is combined with rod member, and it is carried out into bearing pin with rod member and is connected, and strengthens its steadiness, greatly reduces
The quantity of jacking, is greatly saved material.
As shown in Figure 2, single section is by 6 vertical rods at box beam side web and wing plate for conventional support frame, 3 braces, and 3
Root cross bar amounts to 12 rod member compositions.And be only made up of using this support frame 5 rod members, jacking is also by 6 changes of conventional bracket
Into 3.
3rd, it is easy to adjust：Connected mode between its vertical rod of conventional fastener formula scaffold is spigot-and-socket, and what is had is certain firm
Property, but bayonet joint can only up and down rod member it is coaxially connected, it is impossible to adjust the angle between rod member.
The utility model is integrally supported between four frames of frame and at least one web adjusting rod and connected by bearing pin, and
And the adjustable in length of web support bar, wing plate adjusting rod and web adjusting rod, the steadiness of former spigot-and-socket, and can be retained
Adjust the angle between rod member.Height and angle can be adjusted at any time in use, without being dismounted, have and adjust
Save the advantages of facilitating.
4th, structural linetype is good：Support brace of the present utility model is connected with cross bar using bearing pin, freely adjustable box beam
The angle of side web and wing plate, advantageously in guarantee structural linetype.Brace bottom sets screw rod and adjusting nut, can be to box beam
Side web height is adjusted, and is more applicable deck-molding change section box beam.
5th, turnover rate is high：The utility model support frame tears simplicity open due to taking, and spoilage is low during practice of construction, turnover
Rate is high.
6th, applicability is good：Support frame of the present utility model can be effectively connected with conventional scaffold, be formed firm
It is overall, there is general applicability in cast-in-situ box girder wing plate and side web.
7th, save artificial：After the completion of box beam bracket is set up, its elevation location need to be adjusted.Regulation of the present utility model
Work efficiency is more than 3 times of conventional bracket.We extract 5 workers to conventional bracket and practicality at box beam side web and wing plate respectively
New-support is adjusted contrast, and single worker adjusts conventional bracket and imitated to prolong m/h for 5, and adjusts the utility model branch
Frame is 15.6 to prolong m/h.
Brief description of the drawings
Fig. 1 is that conventional cast-in-place box beam bracket sets up mode；
Fig. 2 is the structural representation that the utility model is integrally supported that frame is used for side web, wing plate supports；
Fig. 3 is that the utility model side web and wing plate are integrally supported frame structural representation；
Fig. 4 is pin shaft connection structure schematic diagram.
Fig. 5 is the use schematic diagram for the support frame for being welded with rotation steel loop；
Fig. 6 be web support bar and chassis connection diagram；
Fig. 7 chassis and lower carriage connection diagram；
Fig. 8 is the structural representation that chassis is fixed with lower carriage using U-shaped ring.
Wherein reference is：1- chassis, 2- wing plates support bar, 3- webs support bar, 4- wing plates adjusting rod, 5- webs are adjusted
Pole, 6- bearing pins connection member, 7- screw rods, 8- adjusting nuts, 9- rotations steel loop, 10- lower carriages, 11-U type rings, 12- sides abdomen
Plate, 13- wing plates.
Embodiment
The defects of the utility model exists for conventional support frame at cast-in-situ box girder side web 12 and wing plate 13, engineering skill
Art personnel support on the basis of combining pertinent literature, real case and multiple research and development test to cast-in-situ box girder side web 12 and wing plate
Frame carries out R ＆ D design, final utility model go out one kind take tear open it is simple, it is easy to adjust, it is easily controllable, check, particularly with existing
Pour the wide transition box beam of box girder bridge (bend section, track change section, main line connect ring road section etc.), it is linear more at side web 12 and wing plate
The place of change, be more favorable for its alignment control, and meet related specifications, standard and design requirement cast-in-situ box girder side web and
Wing plate tool is integrally supported frame to reach the purpose for ensureing construction quality, improving efficiency of construction, economizing on resources.Below in conjunction with attached
The utility model is described in detail figure.
Cast-in-situ box girder side of the present utility model web 12 and wing plate are integrally supported frame, including chassis 1, wing plate support bar 2, abdomen
Plate support bar 3, wing plate adjusting rod 4 and 2 web adjusting rods 5, wherein chassis are horizontally disposed with, and the lower end of web support bar 3 is set
There is screwed hole, and be connected with screw rod 7, adjusting nut 8 is additionally provided with screw rod 7, screw rod 7 passes through bearing pin connection member 6 and chassis 1
One end connection, the other end of web support bar 3 is connected with one end of wing plate support bar 2 by bearing pin, the two of wing plate adjusting rod 4
End is each provided with a silk mouth, and two silk mouths are in opposite direction, and a screw rod 7 is each provided with each silk mouth, and screw rod 7 is connected by bearing pin
Relay part 6 is corresponding to be connected with wing plate supporting plate and chassis 1.The both ends of web adjusting rod 5 are each provided with a silk mouth, two silk mouths
In the opposite direction, a screw rod 7 is each provided with each silk mouth, screw rod 7 is corresponded to and web support bar 3 by bearing pin connection member 6
Waist and chassis 1 connect.The length of web support bar 3, wing plate adjusting rod 4 and web adjusting rod 5 is adjusted by screw rod 7, is passed through
Regulation adjustment angle and the support frame height of relative length.
Wing plate adjusting rod 4 and web adjusting rod 5 are round steel pipe.Wing plate support bar 2 and web support bar 3 are square steel tube, and
Wide 2 times of a height of pipe of the transversal facial canal of square steel tube.In the case of same cross-sectional area, such a Box Section resistance moment supports compared with circular hollow section
Anti- square is big, that is to say, that this pipe anti-bending strength is more excellent.Such as：Square tube top width is 50mm, thickness of pipe 3mm, then its section resistance moment
For W1=[50*100^3- (50-6) * (100-6) ^3]/600=22424mm^3.Its uiform section pipe external diameter is D=(300-
4)/π+1.5=96mm, its section resistance moment W2=0.0982 [D^4- (D-3) ^4]/D=10362mm^3.Therefore W1>W2.
As shown in figure 4, rod member junction is connected using bearing pin, pin is fixed using the screens of hard iron wire and prevents from slipping, can
Carry out support angle regulation.
It is connected as shown in figure 5, steel pipe two ends set positive and negative silk mouth with screw rod 7, weldering φ 4cm rotation steel loops in the middle part of steel pipe can
Below φ 3cm lengths of rebar insertion is rotated into steel pipe the length of steel pipe two screw rod 7 is adjusted, and then adjusting bracket is whole
The purpose of shape.
Side web oblique square tube is connected with bottom channel-section steel using bearing pin, adjustable side web angle.Oblique square tube portion sets screw rod 7
With adjusting nut, can opposite side web plagioclase be adjusted and transmit load (such as Fig. 6).
To ensure that this strutting system is effectively combined with conventional bracket, the connected mode of light rail and its track, branch are used for reference
Frame bottom, as Force transmission partses, makes it just to be fixed (such as Fig. 7) with bottom lumps of wood buckle, the bottom lumps of wood using 12# channel-section steels
Drawn by box beam bottom keel, just form one with integrated support frame, ensure its steadiness and globality.Further to strengthen
Channel-section steel and bottom lumps of wood globality, are fixed both using U-shaped ring 11, are connected between each integrated frame using conventional steel pipe and fastener
Connect, ensure globality (such as Fig. 8).
Its main stressed member composition is finally determined through Force Calculation, for the larger wing plate of load and side web its stress
Rod member can further be strengthened, and table 1 is classified as a specific embodiment material therefor of the present utility model.
Table 1
Cast-in-situ box girder side web and wing plate are integrally supported frame and compare conventional scaffold, overcome box beam side abdomen in work progress
Plate and wing plate support, which are taken, to be torn cumbersome, mould bases later stage open and adjusts difficult, common scaffold and do not have the shortcomings of specific aim, waste of material.And
This support frame tears simplicity open due to taking, and spoilage is low during practice of construction, and turnover rate is high.Along bridge to spacing identical situation
Under, single section conventional support frame carries out needing to adjust more than 9 jackings during later stage adjustment, and this support only needs adjustment 3, and adjusts
The section free degree is also obviously improved, and is greatly reduced its regulating time, work task efficiency is improved, advantageously in case
The linear guarantee of beam outward appearance.The effectively change in shape of the side web of control cast-in-situ box girder and wing plate, raising construction quality, are reduced
Labor intensity, cost of labor is greatlyd save, be to the supplement of existing construction tool and perfect, promoted engineering construction instrument
Development.
Claims (10)
1. cast-in-situ box girder side web and wing plate are integrally supported frame, it is characterised in that：
The integral support frame includes chassis, wing plate support bar, web support bar, wing plate adjusting rod and the regulation of at least one web
Bar, the chassis are horizontally disposed with, and one end of the web support bar is flexibly connected with one end of chassis, the web support bar
The other end is flexibly connected with one end of wing plate support bar, and one end of the wing plate adjusting rod is flexibly connected with the other end of chassis,
The other end of the wing plate adjusting rod is flexibly connected with the other end of wing plate support bar；One end of the web adjusting rod and web
The waist of support bar is flexibly connected, and the other end of the web adjusting rod is flexibly connected with chassis；The web support bar, wing plate
The adjustable in length of adjusting rod and web adjusting rod.
2. cast-in-situ box girder side according to claim 1 web and wing plate are integrally supported frame, it is characterised in that：
Connected between the chassis, wing plate support bar, web support bar, wing plate adjusting rod and web adjusting rod by bearing pin.
3. cast-in-situ box girder side according to claim 2 web and wing plate are integrally supported frame, it is characterised in that：Bearing pin junction
It is provided with iron wire card.
4. cast-in-situ box girder side according to claim 2 web and wing plate are integrally supported frame, it is characterised in that：The web branch
The lower end of strut is provided with screwed hole, and is connected with screw rod, and adjusting nut is additionally provided with screw rod, and screw rod passes through bearing pin connecting portion
Part is connected with chassis.
5. cast-in-situ box girder side according to claim 2 web and wing plate are integrally supported frame, it is characterised in that：
The both ends of the wing plate adjusting rod are each provided with a silk mouth, and two silk mouths are in opposite direction, and one is each provided with each silk mouth
Individual screw rod, screw rod are connected by the way that bearing pin connection member is corresponding with wing plate supporting plate and chassis.
6. cast-in-situ box girder side according to claim 2 web and wing plate are integrally supported frame, it is characterised in that：
The both ends of the web adjusting rod are each provided with a silk mouth, and two silk mouths are in opposite direction, and one is each provided with each silk mouth
Individual screw rod, screw rod are connected by the way that bearing pin connection member is corresponding with web support bar and chassis.
7. the cast-in-situ box girder side web and wing plate according to claim 1 or 2 or 3 or 4 or 5 are integrally supported frame, its feature exists
In：
The chassis is channel-section steel, and the opening of channel-section steel can interlock with the lumps of wood of lower carriage.
8. the cast-in-situ box girder side web and wing plate according to claim 1 or 2 or 3 or 4 or 5 are integrally supported frame, its feature exists
In：
The wing plate adjusting rod and web adjusting rod are round steel pipe.
9. the cast-in-situ box girder side web and wing plate according to claim 1 or 2 or 3 or 4 or 5 are integrally supported frame, its feature exists
In：
The wing plate support bar and web support bar are square steel tube, and 2 times that a height of pipe of the transversal facial canal of square steel tube is wide.
10. the cast-in-situ box girder side web and wing plate according to claim 3 or 4 or 5 are integrally supported frame, it is characterised in that：Institute
State and be welded with rotation steel loop in the middle part of web support bar, wing plate adjusting rod and web adjusting rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720471705.0U CN206971086U (en) | 2017-05-02 | 2017-05-02 | Cast-in-situ box girder side web and wing plate are integrally supported frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720471705.0U CN206971086U (en) | 2017-05-02 | 2017-05-02 | Cast-in-situ box girder side web and wing plate are integrally supported frame |
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| Publication Number | Publication Date |
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| CN206971086U true CN206971086U (en) | 2018-02-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906752A (en) * | 2017-05-02 | 2017-06-30 | 北京城建远东建设投资集团有限公司 | Cast-in-situ box girder side web and wing plate are integrally supported frame |
| CN112376611A (en) * | 2020-11-10 | 2021-02-19 | 北京城建道桥建设集团有限公司 | Construction method of separated overpass system |
| CN117802913A (en) * | 2024-02-29 | 2024-04-02 | 北京城建集团有限责任公司 | Cast-in-situ box girder support frame, preparation method and installation method |
-
2017
- 2017-05-02 CN CN201720471705.0U patent/CN206971086U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906752A (en) * | 2017-05-02 | 2017-06-30 | 北京城建远东建设投资集团有限公司 | Cast-in-situ box girder side web and wing plate are integrally supported frame |
| CN112376611A (en) * | 2020-11-10 | 2021-02-19 | 北京城建道桥建设集团有限公司 | Construction method of separated overpass system |
| CN117802913A (en) * | 2024-02-29 | 2024-04-02 | 北京城建集团有限责任公司 | Cast-in-situ box girder support frame, preparation method and installation method |
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