CN108457193B - Box beam skew web plate formwork erecting structure and its erection method - Google Patents
Box beam skew web plate formwork erecting structure and its erection method Download PDFInfo
- Publication number
- CN108457193B CN108457193B CN201810114447.XA CN201810114447A CN108457193B CN 108457193 B CN108457193 B CN 108457193B CN 201810114447 A CN201810114447 A CN 201810114447A CN 108457193 B CN108457193 B CN 108457193B
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- support
- steel pipe
- bottom plate
- box beam
- reinforcing bar
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention provides a kind of box beam skew web plate formwork erecting structure and its erection methods, the formwork erecting structure includes: formwork-support, reaction beam and its fixed device, template system and support system, the reaction beam is fixed on the formwork-support by the fixed device of reaction beam, the extending direction of the reaction beam is consistent with the length direction of the box beam bottom plate, the bottom of the reaction beam is generally aligned in the same plane with the box beam bottom plate, the fixed device of the reaction beam includes providing reaction of bearing to drawing reinforcing bar and horizontal support bar, described pair of drawing reinforcing bar for the reaction beam；The template system is set to the box girder body two sides；The support system includes that supporting steel pipe, adjustable U support and U-shaped pedestal, the supporting steel pipe skewed horizontal load connect the reaction beam and the template system.Compared with traditional box beam skew web plate mold method, this method is solid and reliable, convenient and efficient, to reinforcing bar still recoverable is drawn, is able to achieve cost efficiency.
Description
Technical field
The present invention relates to technical field of building construction, and it is a kind of suitable for box beam skew web plate and similar right to relate in particular to
Claim the formwork erection method of structures obliquely or vertically side.
Background technique
At home box beam skew web plate formwork erection construction in, be usually taken tool-type spelling steel supporting system formwork way,
The modes such as fastener type steel pipe oblique top oblique pull mode and tripod support cooperation split bolt.Tool-type spelling steel supporting system expense
It is higher；On the support frame by steel pipe oblique top oblique pull mode, since steel pipe mutually interts more, there are fastener collision problem, nothings
Method ensures quality of connection, and risk is larger, and artificial investment is big；Tripod support cooperation split bolt mode, bolt hole processing
Influence appearance.
Summary of the invention
In view of the foregoing, the present invention provide a kind of stable structure, the convenient and fast box beam skew web plate formwork erecting structure of construction and its
Erection method solves the technical issues of existing formwork erection method is costly, artificial investment is big and fastener conflicts.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of box beam skew web plate formwork erecting structure, the box beam
Include: including two skew web plates being oppositely arranged and the box beam bottom plate for connecting two skew web plate bottom, the formwork erecting structure
Formwork-support, including horizontal cross bar, vertical upright bar, vertical brace and horizontal brace, the horizontal cross bar and institute
It states vertical upright bar to be connected to form a whole, the vertical brace is connected with the vertical upright bar respectively with horizontal brace；
Reaction beam is set on the formwork-support by the fixed device of reaction beam, the bottom of the reaction beam with it is described
Box beam bottom plate is located at same level, and the extending direction of the reaction beam is consistent with the length direction of the box beam；
Wherein, the fixed device of the reaction beam includes to drawing reinforcing bar and horizontal support bar, and described pair of drawing reinforcing bar is along described
The extending direction setting of reaction beam is simultaneously vertical with the reaction beam, and the both ends of described pair of drawing reinforcing bar are respectively equipped with closing reinforcing bar set,
The reaction beam is arranged in the closing reinforcing bar set；The horizontal support bar is connect with the formwork-support by fastener,
To reaction beam described in vertical supporting, the extending direction of the horizontal support bar is identical as described pair of drawing reinforcing bar extending direction；
Template system, including skew web plate template, main joist, secondary joist and three-level keel, the extension side of the three-level keel
Xiang Weishun bridge is to the secondary joist is vertical with the three-level keel, and the main joist is vertical with the secondary joist；
Support system, including supporting steel pipe, adjustable U support and U-shaped pedestal, the adjustable U support are set to the supporting steel pipe
Upper end, the oblique branch in the upper end of the supporting steel pipe peak on the main joist and with the main joist binding and fixing, the U-shaped bottom
Seat is set to the lower end of the supporting steel pipe, and the lower end branch of the supporting steel pipe peaks on the reaction beam.
In the embodiment of the present invention, it is equipped with bottom plate below the box beam bottom plate, is equipped with bottom plate below the bottom plate
Secondary joist, the extending direction of the bottom plate secondary joist are direction across bridge, and the both ends of the bottom plate secondary joist are from the bottom plate
Lower section is stretched out, and main joist described in the lowermost is placed on the bottom plate secondary joist, main joist described in the lowermost and the bottom
It is fixedly connected between plate secondary joist with iron nail to lock the three-level keel and the skew web plate template.
In the embodiment of the present invention, the arranged for interval on the reaction beam extending direction, each supporting steel pipe and the water
The angle of flat support rod is not more than 45 °.
In the embodiment of the present invention, the supporting steel pipe 3 are one group, each supporting steel pipe in supporting steel pipe described in every group
Angle between the horizontal support bar is different, and the distance between supporting steel pipe described in every group is 60cm.
In the embodiment of the present invention, the reaction beam is 10cm × 10cm flitch.
A kind of erection method of the box beam skew web plate formwork erecting structure, comprising the following steps:
The formwork-support and box beam bottom plate system are set up below proposed box beam；
Setting exists to drawing reinforcing bar on reaction beam extending direction, and wears in the closing reinforcing bar set of described pair of drawing reinforcing bar described
Reaction beam, the extending direction of the reaction beam be along bridge to；
It is fixed temporarily secondary joist along the direction that the skew web plate extends, main joist is installed below the secondary joist, and
Bottom main joist is fixed on the bottom plate secondary joist in the box beam bottom plate system；
Supporting steel pipe is installed, adjustable U support is adjusted to adjust main joist absolute altitude and position, makes to keep tension-like to drawing reinforcing bar
State；
Three-level keel are installed on the secondary joist, skew web plate template is installed on the three-level keel, it can described in fine tuning
Adjust U support to adjust the skew web plate template position, absolute altitude, line style and flatness.
In the embodiment of the present invention, the diameter of described pair of drawing reinforcing bar is not less than 16mm.
The present invention due to use above technical scheme, make it have it is following the utility model has the advantages that
(1) compared with traditional box beam skew web plate mold method, this method passes through the counter-force to drawing reinforcing bar to its both ends of drawing
Formwork erecting structure of the beam to provide counter-force point and the supporting steel pipe support top template system that mutually staggers forms box beam skew web plate up and down,
It is solid and reliable, it is convenient and efficient, to reinforcing bar still recoverable is drawn, it is able to achieve cost efficiency.
(2) present invention is located at secondary joist the lowermost main joist and fixes with the bottom plate secondary joist, it is ensured that oblique abdomen
Template die plate and the splicing of box beam bottom plate are tight, mortar leakage prevention.
(3) setting of the adjustable U support of the present invention, it can be ensured that template position is accurate, while guaranteeing to be in tension-like to drawing reinforcing bar
State, supporting steel pipe arranged for interval on reaction beam extending direction, avoids reaction beam concentrated force excessive.
Detailed description of the invention
Fig. 1 is box beam skew web plate formwork erecting structure elevational schematic view of the present invention.
Fig. 2 is the present invention to drawing reinforcing bar node schematic diagram.
Fig. 3 is the partial enlargement diagram of Fig. 1 insole board template of the present invention Yu skew web plate template intersection.
The corresponding relationship of appended drawing reference and component is as follows:
Skew web plate template 1；Main joist 11；Secondary joist 12；Three-level keel 13；Bottom plate 2；Bottom plate secondary joist 21；Bottom plate
Main joist 22；Formwork-support 3；Horizontal cross bar 31；Vertical upright bar 32；Box beam 4；To drawing reinforcing bar 5；Close reinforcing bar set 51；It is horizontal
Support rod 52；Reaction beam 6；Supporting steel pipe 7；Adjustable U support 71；U-shaped pedestal 72.
Specific embodiment
For the benefit of to understanding of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
Refering to Figure 1, the present invention provides a kind of box beam skew web plate formwork erecting structure, the box beam includes being oppositely arranged
Two skew web plates and the box beam bottom plate for connecting two skew web plate bottom, the formwork erecting structure includes: formwork-support 3, reaction beam
6, template system and support system.Wherein,
The formwork-support 3 includes horizontal cross bar 31, vertical upright bar 32 and brace, and the horizontal cross bar 31 is erected with described
It is connected to form a whole to upright bar 32, the brace is connected with the vertical upright bar 32.
As shown in Figure 1, 2, the reaction beam 6 is set on the formwork-support 3 by the fixed device of reaction beam, described anti-
The bottom of power beam 6 and the box beam bottom plate are located at same level, the extending direction of the reaction beam 6 and the length of the box beam
Direction is consistent.
Wherein, the fixed device of the reaction beam include to drawing reinforcing bar 5 and horizontal support bar 52, described pair of drawing reinforcing bar 5 along
The extending direction setting of the reaction beam 6 is simultaneously vertical with the reaction beam 6, and the both ends of described pair of drawing reinforcing bar 5 are respectively equipped with closing
Reinforcing bar set 51, the reaction beam 6 are arranged in the closing reinforcing bar set 51；The horizontal support bar 52 and the formwork-support
3 are connected by fastener (not shown), to reaction beam 6 described in vertical supporting, the extending direction of the horizontal support bar 52 and institute
It states identical to drawing 5 extending direction of reinforcing bar；Described pair of drawing reinforcing bar 5 is direction across bridge；More preferably, the reaction beam is 10cm × 10cm wood
Side.As shown in figure 3, the template system includes skew web plate template 1, main joist 11, secondary joist 12 and three-level keel 13, described three
The extending direction of grade keel 13 is along bridge to the secondary joist 12 is vertical with the three-level keel 13, the main joist 11 and institute
It is vertical to state secondary joist 12；It is equipped with bottom plate 2 below the box beam bottom plate, is equipped with bottom plate secondary joist below the bottom plate 2
21, the extending direction of the bottom plate secondary joist 21 is direction across bridge, and the both ends of the bottom plate secondary joist 21 are from the bottom plate 2
Lower section is stretched out, and main joist 11 described in the lowermost is fixed on the bottom plate secondary joist 21, main joist 11 described in the lowermost
It is fixedly connected between the bottom plate secondary joist 21 with iron nail to lock the skew web plate template 1 and the bottom plate 2.
As shown in Figure 1,3, the support system includes supporting steel pipe 7, adjustable U support 71 and U-shaped pedestal 72, the adjustable U
Support 71 is set to the upper end of the supporting steel pipe 7, and the oblique branch in upper end of the supporting steel pipe 7 peaks on the main joist 11 and passes through
Iron wire (not shown) is tied fixes with the main joist 11, and the U-shaped pedestal 72 is set to the lower end of the supporting steel pipe 7, described
Another lower of supporting steel pipe 7 peaks on the reaction beam 6.
Specifically, the adjustable U support 71 includes vertical screw rod, is fixed on the U-shaped jacking of the screw tip and is spirally connected
Nut outside the screw rod, the bottom end of the screw rod are inserted in the round tube of the supporting steel pipe 7, the U-shaped jacking card
It is fixed on the downside of the main joist.
As shown in Fig. 2, the U-shaped pedestal 72 includes vertical collet inserted link and the U for being fixed on collet inserted link top
Shape collet, the U-shaped collet are fastened on the reaction beam 6, and the bottom end of the collet inserted link is inserted in the supporting steel pipe 7
In round tube.
More preferably, support system arranged for interval on 6 extending direction of reaction beam, each supporting steel pipe 7 with
The angle of the horizontal support bar 5 is not more than 45 °.In the embodiment of the present invention, the supporting steel pipe 3 are one group, described in every group
Each supporting steel pipe 7 is different from the angle between the horizontal support bar 52 in supporting steel pipe 7, every group of supporting steel pipe 7
The distance between be 60cm.
The details described above formwork erecting structure of box beam skew web plate of the present invention, its erection method of detailed description below, including
Following steps:
1, the formwork-support 3 and box beam bottom plate system, the box beam bottom plate mould are set up below proposed box beam 4
Plate body system includes bottom plate 2, set on the bottom plate secondary joist 21 of 2 lower section of bottom plate and set on the bottom plate secondary joist 21
The bottom plate main joist 22 of lower section, the extending direction of the bottom plate main joist 22 be along bridge to, the bottom plate main joist 22 with it is described
Bottom plate secondary joist 21 is vertical；
2, setting is drawn at described Dui in the closing reinforcing bar set 51 of reinforcing bar 5 reinforcing bar 5 is drawn on the extending direction of reaction beam 6
Wear the reaction beam 6, the extending direction of the reaction beam 6 be along bridge to；
In the embodiment of the present invention, described pair of drawing reinforcing bar 5 is Ф 16 elongated to reinforcing bar is drawn, and spacing 1000mm is skew web plate
1 support top of template provides counter-force, elongated to need to adjust according to actual loading to drawing reinforcing bar model, spacing, should ensure that drawing reinforcing bar 5
1 deflection of skew web plate template caused by tension extends meets code requirement.
3, secondary joist 12 is fixed temporarily along the direction that the skew web plate template 1 extends and pacify below the secondary joist 12
Main joist 11 is filled, and the box beam bottom plate secondary joist is fixed in the one end for being located at 12 the lowermost main joist 11 of secondary joist
On 21, the main joist 11 and the secondary joist 12 are 100mm × 100mm flitch；
4, supporting steel pipe 7 is installed, adjustable U support is adjusted to adjust 11 absolute altitude of main joist and position, makes that drawing reinforcing bar 5 is kept drawing
Tight state；In the embodiment of the present invention, the supporting steel pipe 7 is 48 common steel tube of φ, and the supporting steel pipe 7 every 3 are one group, often
Each supporting steel pipe 7 is different from the angle between horizontal support bar 52 in group supporting steel pipe 7, between every group of supporting steel pipe 7
Spacing 60cm.
5, three-level keel 13 are installed on the secondary joist, skew web plate template 1, fine tuning are installed on the three-level keel 13
The adjustable U support is to adjust 1 position of skew web plate template, absolute altitude, line style and flatness；More preferably, the three-level keel 13
The distance between be 15~20cm, the distance between described secondary joist 12 be 60cm, the three-level keel 13 be 50mm × 100mm
Flitch.
It is described the invention in detail above in conjunction with accompanying drawings and embodiments, those skilled in the art can basis
Above description makes many variations example to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention,
The present invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (7)
1. a kind of box beam skew web plate formwork erecting structure, the box beam includes two skew web plates being oppositely arranged and connection two skew web plate
The box beam bottom plate of bottom, which is characterized in that the formwork erecting structure includes:
Formwork-support, including horizontal cross bar, vertical upright bar and brace, the horizontal cross bar connect to be formed with the vertical upright bar
One entirety, the brace are connected with the vertical upright bar；
Reaction beam is set on the formwork-support, the bottom of the reaction beam and the box beam by the fixed device of reaction beam
Bottom plate is located at same level, and the extending direction of the reaction beam is consistent with the length direction of the box beam；Wherein,
The fixed device of the reaction beam include to drawing reinforcing bar and horizontal support bar, it is described to drawing reinforcing bar to prolong along the reaction beam
Stretch direction setting and it is vertical with the reaction beam, described pair drawing reinforcing bar both ends be respectively equipped with closing reinforcing bar set, the reaction beam
It is arranged in the closing reinforcing bar set；The horizontal support bar is connect with the formwork-support by fastener, vertically to prop up
The reaction beam is supportted, the extending direction of the horizontal support bar is identical as described pair of drawing reinforcing bar extending direction；
Template system, including skew web plate template, main joist, secondary joist and three-level keel, the extending direction of the three-level keel are
Along bridge to the secondary joist is vertical with the three-level keel, and the main joist is vertical with the secondary joist；
Support system, including supporting steel pipe, adjustable U support and U-shaped pedestal, the adjustable U support are set to the upper end of the supporting steel pipe,
The oblique branch in the upper end of the supporting steel pipe peak on the main joist and with the main joist binding and fixing, the U-shaped pedestal sets
In the lower end of the supporting steel pipe, the lower end branch of the supporting steel pipe is peaked on the reaction beam.
2. box beam skew web plate formwork erecting structure according to claim 1, which is characterized in that be equipped with bottom below the box beam bottom plate
Template die plate, the bottom plate lower section are equipped with bottom plate secondary joist, and the extending direction of the bottom plate secondary joist is direction across bridge, the bottom
The both ends of plate secondary joist are stretched out from the lower section of the bottom plate, main joist described in the lowermost be placed in the bottom plate secondary joist it
On, it is fixedly connected between main joist described in the lowermost and the bottom plate secondary joist with iron nail to lock the three-level keel and institute
State skew web plate template.
3. box beam skew web plate formwork erecting structure according to claim 1, which is characterized in that on the reaction beam extending direction
The angle of each supporting steel pipe of arranged for interval, the supporting steel pipe and the horizontal support bar is not more than 45 °.
4. box beam skew web plate formwork erecting structure according to claim 3, which is characterized in that the supporting steel pipe 3 are one group,
Each supporting steel pipe is different from the angle between the horizontal support bar in supporting steel pipe described in every group, supporting steel described in every group
The distance between pipe is 60cm.
5. box beam skew web plate formwork erecting structure according to claim 1, which is characterized in that the reaction beam is 10cm × 10cm
Flitch.
6. it is a kind of according to claim 1 to the erection method of box beam skew web plate formwork erecting structure described in any claim in 5,
It is characterized in that, comprising the following steps:
The formwork-support and box beam bottom plate system are set up below proposed box beam；
Setting wears the counter-force to drawing reinforcing bar, and in the closing reinforcing bar set of described pair of drawing reinforcing bar on reaction beam extending direction
Beam, the extending direction of the reaction beam be along bridge to；
It is fixed temporarily secondary joist along the direction that the skew web plate extends, main joist is installed below the secondary joist, and will most
Lower section main joist is fixed on the bottom plate secondary joist in the box beam bottom plate system；
Supporting steel pipe is installed, adjustable U support is adjusted to adjust main joist absolute altitude and position, makes to keep tension to drawing reinforcing bar；
Three-level keel are installed on the secondary joist, skew web plate template is installed on the three-level keel, finely tune the adjustable U support
To adjust the skew web plate template position, absolute altitude, line style and flatness.
7. the erection method of box beam skew web plate formwork erecting structure according to claim 6, which is characterized in that described pair of drawing reinforcing bar
Diameter be not less than 16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114447.XA CN108457193B (en) | 2018-02-06 | 2018-02-06 | Box beam skew web plate formwork erecting structure and its erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114447.XA CN108457193B (en) | 2018-02-06 | 2018-02-06 | Box beam skew web plate formwork erecting structure and its erection method |
Publications (2)
| Publication Number | Publication Date |
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| CN108457193A CN108457193A (en) | 2018-08-28 |
| CN108457193B true CN108457193B (en) | 2019-07-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109457591B (en) * | 2018-12-29 | 2024-03-15 | 山东志特新材料科技有限公司 | Aluminum alloy template system for standard section of box girder internal mold and construction method of aluminum alloy template system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR200189326Y1 (en) * | 1999-12-27 | 2000-07-15 | 김근택 | Incremental launching method type pc box girder bridge making mold system |
| CN104963290B (en) * | 2015-07-08 | 2016-10-12 | 杭州江润科技有限公司 | Flat vertical curve combination section variable cross-section cast-in-situ box girder formwork erecting structure and construction method |
| CN105821769B (en) * | 2016-04-01 | 2017-05-03 | 上海城建市政工程（集团）有限公司 | Large-angle inclined leg pier pouring construction method |
| CN106758821B (en) * | 2016-11-22 | 2019-02-19 | 中建四局第五建筑工程有限公司 | The method of cast-in-situ box girder side form support and its box girder formwork support device of use |
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