CN103192448B - Internal mold and manufacturing method thereof, and precast box girder and manufacturing method thereof - Google Patents
Internal mold and manufacturing method thereof, and precast box girder and manufacturing method thereof Download PDFInfo
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- CN103192448B CN103192448B CN201310085932.6A CN201310085932A CN103192448B CN 103192448 B CN103192448 B CN 103192448B CN 201310085932 A CN201310085932 A CN 201310085932A CN 103192448 B CN103192448 B CN 103192448B
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- internal mold
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- case beam
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Abstract
The invention discloses an internal mold and a manufacturing method thereof, and a precast box girder and a manufacturing method thereof. The internal mold of the precast box girder comprises a skeleton sheet and an internal mold panel, wherein the internal mold panel is formed by splicing multiple pieces of strip-shaped steel; and the internal mold panel is fixed on the outer side of the skeleton sheet in a surrounding mode. The invention does not need to adopt heavy machinery such as a small gantry crane so as to simplify the mounting difficulty; and during disassembling, the internal mold can be disintegrated naturally only by disconnecting the strip-shaped steel with the skeleton sheet, so that disassembling is convenient and short time is consumed. In addition, compared with the internal mold panel with the whole sheet, the internal mold panel with the strip-shaped steel has light self weight. The whole internal anti-deformation capability can be improved by increasing the skeletons or manufacturing the skeleton through the materials with higher hardness, so that the anti-deformation capability of the invention is stronger.
Description
Technical field
The present invention relates to building field, in particular, relate to a kind of internal mold and preparation method thereof and a kind of prefabricated case beam and preparation method thereof.
Background technology
The internal mold of prefabricated case beam, mainly in order to reach the physical dimension of designing requirement, adopting the template that processes of different materials, and having enough bearing capacitys, can bear the mobile load that the dead load and small machine that are produced by concrete and workmen produce.Adopt steel processing and fabricating in the construction of internal mold major part, because punching block deadweight is comparatively large, in installation process, need small arc shaped to hang cooperation install, and node is more, takies straddle truck mechanical one-shift and labor intensive.Also be that the time is longer because node is more when dismounting.Due to the larger reason of deadweight, use sizing punching block when removing, position, corner needs the instrument of crowbar and so on to make it loosening unavoidably, easily cause corner position distortions, and due to pin joint more, owing to causing local inelastic to be out of shape under concrete external force long term, thus physical dimension is caused to exceed the problem such as design, the super side of concrete.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of easy disassembly, not yielding internal mold and preparation method thereof and a kind of prefabricated case beam and preparation method thereof.
The object of the invention is to be achieved through the following technical solutions:
An internal mold for prefabricated case beam, the internal mold panel that described internal mold comprises matrix tablet, is spliced to form by many strip steel, described internal mold panel is around the outside being fixed on described matrix tablet.
Further, described matrix tablet comprises at least two round steel, is welded and fixed between described round steel.
Further, described matrix tablet comprises the first round steel being positioned at top, is positioned at the second round steel of bottom, and the first round steel is parallel with the second round steel, and the first round steel length is greater than the second round steel; Described matrix tablet both sides are provided with the 3rd outward-dipping round steel; Described 3rd round steel is connected with the two ends of the second round steel with the first round steel respectively by four the 4th round steel, forms four chamferings; Two the 5th round steel are provided with between described first round steel and the second round steel; Described 5th round steel one end be fixed on the second round steel end position and perpendicular to the second round steel; Described 5th round steel is connected with the 6th round steel with between the first round steel, forms two triangles; Be connected with many 7th round steel between described 3rd round steel and the 5th round steel, form multiple triangle.
Further, described pipe diameter is 20mm.
Further, described strip steel are square tube.
Further, the length of described square tube cross section is 5mm, and width is 3mm.
Further, described strip steel are channel-section steel.
Further, described matrix tablet arranges along described strip steel length direction, adjacent one meter, two matrix tablet intervals, and described strip steel adopt steel band to be fixed on each matrix tablet.
Further, the outer surface of described internal mold panel is coated with plastic sheeting.
A preparation method for internal mold, the internal mold panel that described internal mold comprises matrix tablet, is spliced to form by many strip steel, described internal mold panel is around the outside being fixed on described matrix tablet; Described strip steel are square tube, and the preparation method of described internal mold comprises:
A, at prefabricated in-site installation base, base is arranged the centring ring of fixing matrix tablet;
B, in the bottom of mounting seat, the square tube bottom internal mold panel is installed;
Place matrix tablet above C, square tube bottom mounting seat, matrix tablet realizes location by the centring ring of base;
D, the square tube at fixing internal mold panel sides and top is installed around matrix tablet;
E: at the outer surface covered with plastic film of internal mold panel.
Adopt the prefabricated case beam that the internal mold of a kind of prefabricated case beam of the present invention makes, the inner surface of described prefabricated case beam is provided with many parallel travers along prefabricated case beam length direction, has many parallel frame lines around prefabricated case beam inside.
A preparation method for prefabricated case beam of the present invention, comprises step:
A, make pedestal in prefabricated place; The pre-buried channel-section steel in pedestal both sides;
B, tilt in pedestal both sides a vertical external mold; The external mold of described pedestal and both sides forms groove;
C, inside pedestal and external mold colligation base plate and web reinforcement;
D, internal mold is placed on pedestal;
E, top colligation roof steel bar at described groove;
F, from groove top to inside grooves pour concrete;
G, concrete curing after carry out the demoulding, form described prefabricated case beam.
The present invention adopts matrix tablet to build the skeleton of whole inside, internal mold panel adopts the steel of strip to be spliced to form, the steel of strip are fixed on the outside of matrix tablet, first matrix tablet is arranged when assembling, then by the outside being fixed on matrix tablet of steel one rule of strip, whole process completely can by artificial or come by small-sized aid, the heavy-duty machinery such as to hang without the need to adopting small arc shaped, simplifying installation difficulty; As long as remove the connection of steel with matrix tablet of strip when dismounting, internal mold just can be disintegrated naturally, convenient disassembly, consuming time short.Adopt the steel of strip to compare the internal mold panel of full wafer steel in addition, conduct oneself with dignity little, and can be promoted the non-deformability of whole inside by the mode increasing skeleton or adopt the higher material of hardness to make skeleton, therefore non-deformability of the present invention is also stronger.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention internal mold floor map;
Fig. 2 is embodiment of the present invention matrix tablet schematic diagram;
Fig. 3 a is embodiment of the present invention internal mold number of assembling steps one floor map;
Fig. 3 b is embodiment of the present invention internal mold number of assembling steps one schematic perspective view;
Fig. 4 a is embodiment of the present invention internal mold number of assembling steps two schematic diagram;
Fig. 4 b is embodiment of the present invention internal mold number of assembling steps two schematic perspective view;
Fig. 5 a is embodiment of the present invention internal mold number of assembling steps three schematic diagram;
Fig. 5 b is embodiment of the present invention internal mold number of assembling steps three schematic perspective view;
Fig. 6 a is embodiment of the present invention internal mold number of assembling steps four schematic diagram;
Fig. 6 b is embodiment of the present invention internal mold number of assembling steps four schematic perspective view;
Fig. 7 is the overall schematic of embodiment of the present invention internal mold;
Fig. 8 is the preparation method schematic diagram of embodiment of the present invention prefabricated case beam and internal mold thereof.
Wherein: 10, matrix tablet; 11, the first round steel; 12, the second round steel; 13, the 3rd round steel; 14, the 4th round steel; 15, the 5th round steel; 16, the 6th round steel; 17, the 7th round steel; 20, square tube; 30, centring ring.
Detailed description of the invention
The invention discloses a kind of internal mold of prefabricated case beam, the internal mold panel that internal mold comprises matrix tablet, is spliced to form by many strip steel, internal mold panel is around the outside being fixed on matrix tablet.
The present invention adopts matrix tablet to build the skeleton of whole inside, internal mold panel adopts the steel of strip to be spliced to form, the steel of strip are fixed on the outside of matrix tablet, first matrix tablet is arranged when assembling, then by the outside being fixed on matrix tablet of steel one rule of strip, whole process completely can by artificial or come by small-sized aid, the heavy-duty machinery such as to hang without the need to adopting small arc shaped, simplifying installation difficulty; As long as remove the connection of steel with matrix tablet of strip when dismounting, internal mold just can be disintegrated naturally, convenient disassembly, consuming time short.Adopt the steel of strip to compare the internal mold panel of full wafer steel in addition, conduct oneself with dignity little, and can be promoted the non-deformability of whole inside by the mode increasing skeleton or adopt the higher material of hardness to make skeleton, therefore non-deformability of the present invention is also stronger.
Below in conjunction with accompanying drawing and preferred embodiment, the invention will be further described.
See Fig. 1,2, the internal mold of prefabricated case beam, the internal mold panel that internal mold comprises matrix tablet 10, is spliced to form by many square tubes 20, internal mold panel is around the outside being fixed on matrix tablet 10.Matrix tablet 10 is along the arrangement of square tube 20 length direction, and adjacent one meter, two matrix tablet 10 intervals, are positioned by centring ring 30.Square tube 20 adopts steel band to be fixed on each matrix tablet 10.Square tube 20 can select cross-section lengths to be 5mm, and width is 3mm.Certainly, as long as the strip steel that can form flat surface after splicing all can be selected, as section bars such as channel-section steels.
Matrix tablet 10 is welded by many round steel and is formed.Matrix tablet 10 comprises the first round steel 11 being positioned at top, and the second round steel 12, first round steel 11 being positioned at bottom is parallel with the second round steel 12, and the first round steel 11 length is greater than the second round steel 12; Matrix tablet 10 both sides are provided with the 3rd outward-dipping round steel 13; 3rd round steel 13 is connected with the two ends of the second round steel 12 with the first round steel 11 respectively by four the 4th round steel 14, forms four chamferings; Two the 5th round steel 15 are provided with between first round steel 11 and the second round steel 12; 5th round steel 15 one end be fixed on the second round steel 12 end position and perpendicular to the second round steel 12; 5th round steel 15 is connected with the 6th round steel 16 with between the first round steel 11, forms two triangles; Be connected with many 7th round steel 17 between 3rd round steel 13 and the 5th round steel 15, form multiple triangle.
The conveniently demoulding, the outer surface of internal mold panel is coated with plastic sheeting.
Described in Fig. 3 a ~ 7.The preparation method of the internal mold of the present embodiment comprises the following steps.
Step one, as shown in Fig. 3 a, 3b, present prefabricated in-site installation base, base is provided with the centring ring of fixing matrix tablet;
Step 2, as shown in Fig. 4 a, 4b, installs the square tube bottom internal mold panel in the bottom of mounting seat;
Step 3, as shown in Fig. 5 a, 5b, places matrix tablet on the square tube of base plate, and matrix tablet realizes location by the centring ring of base;
Step 4, as shown in Fig. 6 a, 6b, installs the square tube at fixing internal mold panel sides and top around matrix tablet.The final effect figure of internal mold is see Fig. 7.
Finally with steel band, square tube is fixed on matrix tablet, for ease of the demoulding, uses plastic sheeting by totally-enclosed for assembled good square tube internal mold, finally hang on base in place by straddle truck.
The present embodiment also discloses a kind of prefabricated case beam adopting the internal mold of prefabricated case beam of the present invention to make, and the inner surface of prefabricated case beam is provided with many parallel travers along prefabricated case beam length direction, has many parallel frame lines around prefabricated case beam inside.
As shown in Figure 8, the preparation method of the present embodiment prefabricated case beam is as described below:
(1) case beam pedestal is built
The first built-in pedestal made needed for prefabricated box-beam construction in prefabricated place, case beam pedestal end adopts and expands excavation, the pre-buried channel-section steel in pedestal both sides, built-in grouting sebific duct, and bottom die of box-beam adopts corrosion resistant plate, is welded on pre-buried channel-section steel.Pedestal longitudinally presets antiarch by design, and span centre establishes the camber of downward 1cm, and other is respectively pressed second-degree parabola and arranges.
(2) vertical external mold is propped up
By clean for pedestal polishing cleaning also brushing one deck template paint, then install external mold in pedestal both sides, the external mold of pedestal and both sides forms groove; External mold adopts steel form, by processing factory's processing and fabricating; The height of gradient and correspondence is noted during installation.
(3) steel bar meter and colligation
First colligation base plate and web reinforcement after external mold Zhi Li completes, steel bar meter and be arranged on base and directly carry out colligation (if conditions permit can adopt assembling reinforcement on special reinforced colligation pedestal, then adopt gantry crane integral hoisting to enter position, realize factory operation).
(4) internal mold is placed
Base plate and web reinforcement integral hoisting to enter behind position again by place for internal mold integral hoisting of the present invention, put into inside grooves by internal mold.
(5) in groove top colligation roof steel bar
Colligation roof steel bar again after internal mold installation in position.
(6) pour concrete
After roof steel bar colligation completes, check the pre-buried position of built-in fitting and quantity, get final product cast concrete after reporting supervising engineer's passed examination, the cast of case beam adopts horizontal slice and oblique layering to carry out.
(7) demoulding
Carry out the demoulding after mixed clay solidifying, form prefabricated case beam.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. an internal mold for prefabricated case beam, is characterized in that, the internal mold panel that described internal mold comprises matrix tablet, is spliced to form by many strip steel, and described internal mold panel is around the outside being fixed on described matrix tablet.
2. the internal mold of prefabricated case beam as claimed in claim 1, it is characterized in that, described matrix tablet comprises at least two round steel, is welded and fixed between described round steel.
3. the internal mold of prefabricated case beam as claimed in claim 2, it is characterized in that, described matrix tablet comprises the first round steel being positioned at top, is positioned at the second round steel of bottom, and the first round steel is parallel with the second round steel, and the first round steel length is greater than the second round steel; Described matrix tablet both sides are provided with the 3rd outward-dipping round steel; Described 3rd round steel is connected with the two ends of the second round steel with the first round steel respectively by four the 4th round steel, forms four chamferings; Two the 5th round steel are provided with between described first round steel and the second round steel; Described 5th round steel one end be fixed on the second round steel end position and perpendicular to the second round steel; Described 5th round steel is connected with the 6th round steel with between the first round steel, forms two triangles; Be connected with many 7th round steel between described 3rd round steel and the 5th round steel, form multiple triangle.
4. the internal mold of prefabricated case beam as claimed in claim 1, it is characterized in that, described strip steel are square tube.
5. the internal mold of prefabricated case beam as claimed in claim 1, it is characterized in that, described strip steel are channel-section steel.
6. the internal mold of the prefabricated case beam as described in as arbitrary in Claims 1 to 5, it is characterized in that, described matrix tablet arranges along described strip steel length direction, adjacent one meter, two matrix tablet intervals, and described strip steel adopt steel band to be fixed on each matrix tablet.
7. the internal mold of prefabricated case beam as claimed in claim 1, it is characterized in that, the outer surface of described internal mold panel is coated with plastic sheeting.
8. a preparation method for internal mold, the internal mold panel that described internal mold comprises matrix tablet, is spliced to form by many strip steel, described internal mold panel is around the outside being fixed on described matrix tablet; Described strip steel are square tube, and the preparation method of described internal mold comprises:
A, at prefabricated in-site installation base, base is arranged the centring ring of fixing matrix tablet;
B, in the bottom of mounting seat, the square tube bottom internal mold panel is installed;
Place matrix tablet above C, square tube bottom mounting seat, matrix tablet realizes location by the centring ring of base;
D, the square tube at fixing internal mold panel sides and top is installed around matrix tablet;
E: at the outer surface covered with plastic film of internal mold panel.
9. one kind adopts the prefabricated case beam of the internal mold making of described prefabricated case beam as arbitrary in claim 1 ~ 7, it is characterized in that, the inner surface of described prefabricated case beam is provided with many parallel travers along prefabricated case beam length direction, has many parallel frame lines around prefabricated case beam inside.
10. a preparation method for prefabricated case beam as claimed in claim 9, comprises step:
A, make pedestal in prefabricated place; The pre-buried channel-section steel in pedestal both sides;
B, tilt in pedestal both sides a vertical external mold; The external mold of described pedestal and both sides forms groove;
C, inside pedestal and external mold colligation base plate and web reinforcement;
D, internal mold is placed on pedestal;
E, top colligation roof steel bar at described groove;
F, from groove top to inside grooves pour concrete;
G, concrete curing after carry out the demoulding, form described prefabricated case beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310085932.6A CN103192448B (en) | 2013-03-19 | 2013-03-19 | Internal mold and manufacturing method thereof, and precast box girder and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310085932.6A CN103192448B (en) | 2013-03-19 | 2013-03-19 | Internal mold and manufacturing method thereof, and precast box girder and manufacturing method thereof |
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| CN103192448A CN103192448A (en) | 2013-07-10 |
| CN103192448B true CN103192448B (en) | 2015-06-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302737A (en) * | 2013-06-22 | 2013-09-18 | 葛洲坝集团第五工程有限公司 | Dismounting device and dismounting method of internal mold of precast beam |
| CN104626341B (en) * | 2014-12-15 | 2017-08-01 | 中交路桥华南工程有限公司 | Cored slab internal model and its method for assembly and disassembly |
| CN111203977B (en) * | 2020-01-20 | 2021-03-26 | 四川路航建设工程有限责任公司 | Construction method of prefabricated box girder |
| CN111906922B (en) * | 2020-08-19 | 2021-08-13 | 龙建路桥股份有限公司 | A portable web reinforcement device for processing of prefabricated box girder |
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| CN202148686U (en) * | 2011-05-18 | 2012-02-22 | 东北金城建设股份有限公司 | Assembled type combined mold |
| CN203305351U (en) * | 2013-03-19 | 2013-11-27 | 中交四公局第一工程有限公司 | Inner formwork of prefabricated box girder and prefabricated box girder |
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| KR20030037259A (en) * | 2002-04-25 | 2003-05-12 | 박대열 | Prestressed wave form box girder |
| CN201244857Y (en) * | 2008-07-10 | 2009-05-27 | 中铁大桥局股份有限公司 | Prestress concrete box girder hydraulic internal mold vehicle and hydraulic internal mold system |
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| CN103192448A (en) | 2013-07-10 |
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Effective date of registration: 20130628 Address after: 100123, Beijing, Chaoyang District, Chaoyang Road, mannose Park, south 25, 31 International Exhibition Center Applicant after: The Fourth Engineering Co., Ltd. of CCCC Fourth Highway Engineering Co., Ltd. Applicant after: CCCC Fourth Highway Engineering Co., Ltd. Address before: 100123, Beijing, Chaoyang District, Chaoyang Road, mannose Park, south 25, 31 International Exhibition Center Applicant before: The Fourth Engineering Co., Ltd. of CCCC Fourth Highway Engineering Co., Ltd. |
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