CN202572610U - Die for foam mandrel precasting hollow plate girder - Google Patents
Die for foam mandrel precasting hollow plate girder Download PDFInfo
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- CN202572610U CN202572610U CN 201220225508 CN201220225508U CN202572610U CN 202572610 U CN202572610 U CN 202572610U CN 201220225508 CN201220225508 CN 201220225508 CN 201220225508 U CN201220225508 U CN 201220225508U CN 202572610 U CN202572610 U CN 202572610U
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- foam core
- external mold
- thick stick
- steel bar
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Abstract
The utility model discloses a die for a foam mandrel precasting hollow plate girder. The die comprises a foam mandrel horizontally arranged on a precasting table base, wherein steel outer dies are arranged around the foam mandrel, and pouring space is formed between top openings of the steel outer dies and the foam mandrel, the precasting table base and the foam mandrel, and the steel outer dies and the foam mandrel. The top openings of the steel outer dies are connected with a rod-pressing assembly. A top plate reinforcement layer, a waist plate reinforcement layer and a bottom plate reinforcement layer are respectively arranged between the foam mandrel and the rod-pressing assembly, the foam mandrel and long edge portions of the steel outer dies, and the foam mandrel and the precasting table base. A tightening system is arranged on the outer side of each steel outer die. The tightening system comprises a pair of support back ribs oppositely arranged on two sides of each steel outer die and used for reinforcing the steel outer die. The die for the foam mandrel precasting hollow girder can effectively prevent the mandrel from floating, ensures design thickness of a top plate and a waist plate of the hollow plate girder, and can be poured and formed at a time.
Description
Technical field
The utility model relates to civil engineering and uses the concrete prefabricated element manufacturing installation, especially a kind of mould of foam core precast hollow slab beam.
Background technology
Along with the development of highway construction project, it is ripe that the structural design of simply supported beam has been tending towards, and its construction technology is simpler, is convenient to the scale centralized production, in the highway in China bridge, is used widely.But the discovery part engineering cored slab simply supported beam time that puts into effect vertical minute crack just occurred than short in a lot of construction quality inspections in recent years, influences the engineering useful life longevity.Through analyzing, main cause is that top board and web thickness deficiency cause.So in the construction of hollow slab girder, control top board and web thickness are the emphasis of construction, also are difficult points.At home, generally use traditional air capsule as inner die, though it is reusable in the highway bridge cored slab prefabricated construction; But it is on the high side; The prefabricated needs two cover air capsule inner die of monolithic cored slab, the end-blocking concrete of also will constructing after the demoulding, operation is assorted many; The degree of inflation of air capsule inner die, come-up control and demould time are wayward, cause cored slab top board and web thickness deficiency easily and the generation engineering defect.
A kind of hollow slab girder with the foam core is disclosed in patent ZLCN201120241280.7; The hollow slab girder preparation method that discloses in this patent document specification; Still the core come-up be can not effectively stop, top board and the not enough problem of web thickness overcome; And concreting can not one-shot forming, is difficult for guaranteeing beam body construction quality.
Summary of the invention
The purpose of the utility model provides a kind of core that can effectively stop and floats, but the mould of a kind of foam core precast hollow slab beam of the design thickness of assurance precast hollow slab back plate and web and one-time-concreting moulding.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: a kind of mould of foam core precast hollow slab beam; Comprise the column foam core that is horizontally placed on the precast pedestal; Around being provided with the steel external mold around the foam core; Between the top mouth and foam core of steel external mold, between precast pedestal and the foam core, constitute between steel external mold and the foam core and build the space; The top mouth of steel external mold is connected with the pressure thick stick assembly that is positioned at foam core top, is used to suppress the foam core; The foam core and press between the thick stick assembly, the long leg of foam core and steel external mold divide between, be respectively equipped with top board steel bar layer, web reinforcement layer and base plate steel bar layer between foam core and the precast pedestal, top board steel bar layer, web reinforcement layer and base plate steel bar layer all along the foam core along growing, between web reinforcement layer and the steel external mold, between base plate steel bar layer and the precast pedestal outer cushion block is set all to extension; The outside at the steel external mold is provided with fastening system, fastening system comprise pair of opposing in steel external mold both sides, be used to reinforce the support back of the body rib of steel external mold.
Two support back of the body ribbed back respectively establishes the concrete transfer beam one to the outside of foam core; The concrete transfer beam is provided with built-in fitting; Support to be provided with between back of the body rib bottom and the homonymy concrete transfer beam and be used to hold out against the brace summer that supports back of the body rib; Support between the built-in fitting of carrying on the back rib top and homonymy concrete transfer beam and be connected with oblique connector; Connector is the flower basket bolt of end connecting reinforcement, and two of above-mentioned paired setting is supported between the back of the body rib top and is connected with cross-tie, and brace summer, support back of the body rib, connector, cross-tie constitute said fastening system jointly.
Said pressure thick stick assembly and steel external mold top mouth removably connect, and also are equipped with interior cushion block between said top board steel bar layer, web reinforcement layer and base plate steel bar layer and the foam core.
Said top board steel bar layer, web reinforcement layer and base plate steel bar layer are reinforcing bar stratum reticulare structure; Top board steel bar layer, web reinforcement layer and base plate steel bar layer are as a whole through the iron wire colligation, and top board steel bar layer, web reinforcement layer and base plate steel bar layer are in the same place with the inside and outside cushion block corresponding with it also colligation respectively.
Said pressure thick stick assembly comprises laterally presses thick sticks and is positioned at horizontal pressure thick stick below suitable long to the two vertical beading bars that extend along the foam core along two of foam core Mould Breadth degree direction extension; Two laterally press thick stick and two vertical beading bars to be " well " font arranges; Laterally press the place, crosspoint between thick stick and the vertical beading bar to be provided with pad; Said horizontal pressure thick stick is horizontally placed on the mouth place, top of steel external mold, and vertically beading bar and top board steel bar layer all are lower than the top mouth of steel external mold.
Laterally press the thick stick two ends to be interspersed in respectively in the two pressure thick stick retainer rings that dual-side is provided with on the steel external mold, laterally press to be provided with between thick stick end and the pressure thick stick retainer ring and press the thick stick pad.
Said concrete transfer beam is twice, is set in parallel in steel external mold both sides respectively, supports the outside that back of the body rib is welded in the long limit of steel external mold.
Said fastening system is provided with a plurality of along the suitable length of foam core with pressing the thick stick assembly respectively to the interval.
Said inside and outside cushion block is concrete pad.
Said cross-tie is for regulating leading screw, and said brace summer is for supporting the lumps of wood, and pad is a lumps of wood piece, and pressing the thick stick pad is dutchman.
The beneficial effect of the utility model is: adopt the interior fetal membrane of foam core as the precast hollow plate-girder; The reinforcement means of this foam core is easy and simple to handle, and is with low cost, safety and firmness; Prevented the core come-up effectively; Solve the technical barrier of hollow slab girder web and top plate thickness control, guaranteed the prefabricated quality of hollow slab girder, improved hollow slab girder formwork reinforcement operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the I-I cross section view among Fig. 1.
The specific embodiment
Mould by a kind of foam core precast hollow slab beam illustrated in figures 1 and 2; Comprise the rectangular column foam core 7 that is horizontally placed on the precast pedestal 1; Around being provided with steel external mold 11 around the foam core 7; Be that steel external mold 11 is put along the length and width side ring winding of foam core 7; The steel external mold is penetrating about in the of 11; The bottom nozzle inner wall surrounding of steel external mold 11 is attached at the surrounding of precast pedestal 1; The top mouth of steel external mold 11 is removably connected with and is positioned at foam core 7 tops, is used to suppress foam core 7, prevents the pressure thick stick assembly 6 of foam core 7 come-up; Between the top mouth and foam core 7 of steel external mold 11, between precast pedestal 1 and the foam core 7, constitute between steel external mold 11 and the foam core 7 and be similar to the three-back-shaped space of building, end-blocking is realized through the front and back end of steel external mold 11 respectively in the front and back end of foam core 7, builds space inner foam core 7 and presses between the thick stick assembly 6, between the long leg branch of foam core 7 and steel external mold 11, be respectively equipped with top board steel bar layer 8, web reinforcement layer 5 and base plate steel bar layer 3 between foam core 7 and the precast pedestal 1; Top board steel bar layer 8, web reinforcement layer 5 and base plate steel bar layer 3 are all grown to extension along the suitable of foam core 7; Top board steel bar layer 8 is horizontally disposed reinforcing bar stratum reticulare with base plate steel bar layer 3, and web reinforcement layer 5 is the reinforcing bar stratum reticulare that vertically is provided with, and top board steel bar layer 8, web reinforcement layer 5 and base plate steel bar layer 3 are the double steel bar web frame; Be provided with the prestress wire 22 of stretch-draw between the double steel bar net of base plate steel bar layer 3, top board steel bar layer 8, web reinforcement layer 5 and base plate steel bar layer 3 are as a whole through the iron wire colligation.Foam core 7 can adopt polystyrene foam core 7, certainly, also can adopt the foam core of other materials.
Between web reinforcement layer 5 and the steel external mold 11, between base plate steel bar layer 3 and the precast pedestal 1 outer cushion block 2 is set all; Cushion block 4 in also being equipped with between top board steel bar layer 8, web reinforcement layer 5 and base plate steel bar layer 3 and the foam core 7, said inside and outside cushion block 4,2 is concrete pad.Top board steel bar layer 8, web reinforcement layer 5 and base plate steel bar layer 3 are in the same place with the inside and outside cushion block 4,2 corresponding with it also colligation respectively.
Said pressure thick stick assembly 6 comprises along the horizontal pressure thick stick 20 at two intervals that foam core 7 widths extend and is positioned at horizontal pressure thick stick 20 belows along foam core 7 suitable long vertical beading bars 18 to two intervals of extending; Two laterally press thick stick 20 and two vertical beading bars 18 to be " well " font arranges; Laterally press the place, crosspoint between thick stick 20 and the vertical beading bar 18 to be provided with pad; Pad is a lumps of wood piece 21; Laterally press thick stick 20 to be horizontally placed on the mouth place, top of steel external mold 11, vertically beading bar 18 and top board steel bar layer 8 all are lower than the top mouth of steel external mold 11.Laterally press thick stick 20 two ends to be interspersed in respectively in the two pressure thick stick retainer rings 19 that dual-side is provided with on the steel external mold 11; Laterally press thick stick 20 ends and press to be provided with pressure thick stick pad between the thick stick retainer ring 19, pressing the thick stick pad is dutchman 10, loosening to prevent laterally to press thick stick 20; But laterally press the space between thick stick 20 and the vertical beading bar 18 with lumps of wood piece 21 jam-packs; So only need take away dutchman 10, just can conveniently unload horizontal pressure thick stick 20 and then unload whole pressure thick stick assembly 6, be convenient to rapid construction.Whole pressure thick stick assembly 6 is used for through compacting top board steel bar layer 8, and then compacting foam core 7, avoids foam core 7 come-ups when casting concrete, causes reducing the top board design thickness of precast hollow plate-girder.
The outside at steel external mold 11 is provided with fastening system; Fastening system comprises the support back of the body rib 12, brace summer and the connector of pair of opposing in steel external mold 11 both sides; Support the outside that back of the body rib 12 is welded in steel external mold 11 long limits, supporting back of the body rib 12 is the column shape, and two support back of the body rib 12 respectively establishes concrete transfer beam 16 one in the outside of foam core 7 dorsad; Concrete transfer beam 16 is twice, is set in parallel in steel external mold 11 both sides respectively, and concrete transfer beam 16 is also suitable long to extension along foam core 7.Concrete transfer beam 16 tops are provided with built-in fitting 17; Be provided with between the bottom of support back of the body rib 12 and the homonymy concrete transfer beam 16 and be used to hold out against the said brace summer that supports back of the body rib 12; Brace summer is the horizontal support lumps of wood 15, is connected with oblique connector between the top of support back of the body rib 12 and the built-in fitting 17 of homonymy concrete transfer beam 16, and connector is the flower basket bolt 14 of end connecting reinforcement 9; The reinforcing bar 9 that flower basket bolt 14 tops connect is connected for hook with the top of supporting back of the body rib 12; Flower basket bolt 14 bottoms connect built-in fitting 17, support back of the body rib 12 tops because concrete transfer beam 16 highly is lower than, so connector is oblique setting.Laying respectively at relative two of steel external mold 11 both sides in each fastening system supports between back of the body ribs 12 tops and is connected with cross-tie 13; Said cross-tie 13 is for regulating leading screw; The two ends of regulating leading screw all are provided with screw thread; The two ends of regulating leading screw are inserted two respectively and are supported behind the tie rod hole on back of the body ribs 12 tops fastening nut again, to regulate two spacings that support between back of the body ribs 12 tops.Be that two of each fastening system supports the width of back of the body rib 12 in order to control steel external mold 11 relatively; Brace summer in order to prop up support back of the body rib 12 the bottom to hold out against the bottom of steel external mold 11; Prevent that steel external mold 11 bottoms from extending out, cross-tie 13 to shrink the top of steel external mold 11, prevents that the top mouth of steel external mold 11 from extending out through the top mouth spacing between the contraction two support back of the body ribs 12; Flower basket bolt 14 1 ends of end connecting reinforcement 9 support the top of back of the body rib 12 in order to tension; One end is in order to tension concrete transfer beam 16, and to prevent the top mouth introversion of steel external mold 11, said fastening system is provided with a plurality of along the suitable length of foam core 7 with pressing thick stick assembly 6 respectively to the interval.
The mould of the described a kind of foam core precast hollow slab beam of the utility model; The precast hollow plate-girder that produces adopts foam core 7 inner die as the precast hollow plate-girder; Top board steel bar layer 8, web reinforcement layer 5 and the base plate steel bar layer 3 common frameworks of steel reinforcement that constitute whole prefabricated concrete hollow slab beam; The cross sectional shape of hollow slab girder behind the moulding by casting, exempts to tear open foam core 7 by the interior cross sectional shape decision of steel external mold 11.Before casting concrete precast hollow plate-girder, also should on precast pedestal, build earlier also stretch-draw steel strand wires 22 are set in the space, specifically can the prestress wire 22 of stretch-draw be arranged at the position between the two-layer base plate reinforcing bar stratum reticulare 3; Casting concrete again; When the concrete of building arrives top board steel bar layer 8 and covers foam core 7, can remove rapidly and press thick stick assembly 6, promptly shed dutchman 10 rapidly and remove laterally pressure thick stick 20 and vertically beading bar 18; Continue casting concrete again; Reach steel external mold 11 top mouths until concrete, and cover top board steel bar layer 8 fully, hollow slab girder is built completion.
Claims (10)
1. the mould of a foam core precast hollow slab beam; It is characterized in that: comprise the column foam core that is horizontally placed on the precast pedestal; Around being provided with the steel external mold around the foam core; Between the top mouth and foam core of steel external mold, between precast pedestal and the foam core, constitute between steel external mold and the foam core and build the space; The top mouth of steel external mold is connected with the pressure thick stick assembly that is positioned at foam core top, is used to suppress the foam core; The foam core and press between the thick stick assembly, the long leg of foam core and steel external mold divide between, be respectively equipped with top board steel bar layer, web reinforcement layer and base plate steel bar layer between foam core and the precast pedestal, top board steel bar layer, web reinforcement layer and base plate steel bar layer all along the foam core along growing, between web reinforcement layer and the steel external mold, between base plate steel bar layer and the precast pedestal outer cushion block is set all to extension; The outside at the steel external mold is provided with fastening system, fastening system comprise pair of opposing in steel external mold both sides, be used to reinforce the support back of the body rib of steel external mold.
2. the mould of a kind of foam core precast hollow slab beam as claimed in claim 1; It is characterized in that: two support back of the body ribbed back respectively establishes the concrete transfer beam one to the outside of foam core; The concrete transfer beam is provided with built-in fitting; Support to be provided with between back of the body rib bottom and the homonymy concrete transfer beam to be used to hold out against and support the brace summer of carrying on the back rib, be connected with oblique connector between the built-in fitting of support back of the body rib top and homonymy concrete transfer beam, connector is the flower basket bolt of end connecting reinforcement; Two of above-mentioned paired setting is supported between the back of the body rib top and is connected with cross-tie, and brace summer, support back of the body rib, connector, cross-tie constitute said fastening system jointly.
3. according to claim 1 or claim 2 a kind of mould of foam core precast hollow slab beam; It is characterized in that: said pressure thick stick assembly and steel external mold top mouth removably connect, and also are equipped with interior cushion block between said top board steel bar layer, web reinforcement layer and base plate steel bar layer and the foam core.
4. the mould of a kind of foam core precast hollow slab beam as claimed in claim 3; It is characterized in that: said top board steel bar layer, web reinforcement layer and base plate steel bar layer are reinforcing bar stratum reticulare structure; Top board steel bar layer, web reinforcement layer and base plate steel bar layer are as a whole through the iron wire colligation, and top board steel bar layer, web reinforcement layer and base plate steel bar layer are in the same place with the inside and outside cushion block corresponding with it also colligation respectively.
5. the mould of a kind of foam core precast hollow slab beam as claimed in claim 4; It is characterized in that: said pressure thick stick assembly comprises laterally presses thick sticks and is positioned at horizontal pressure thick stick below suitable long to the two vertical beading bars that extend along the foam core along two of foam core Mould Breadth degree direction extension; Two laterally press thick stick and two vertical beading bars to be " well " font arranges; Laterally press the place, crosspoint between thick stick and the vertical beading bar to be provided with pad; Said horizontal pressure thick stick is horizontally placed on the mouth place, top of steel external mold, and vertically beading bar and top board steel bar layer all are lower than the top mouth of steel external mold.
6. the mould of a kind of foam core precast hollow slab beam as claimed in claim 5; It is characterized in that: laterally press the thick stick two ends to be interspersed in respectively in the two pressure thick stick retainer rings that dual-side is provided with on the steel external mold, laterally press the thick stick end and press to be provided with pressure thick stick pad between the thick stick retainer ring.
7. the mould of a kind of foam core precast hollow slab beam as claimed in claim 6 is characterized in that: said concrete transfer beam is twice, is set in parallel in steel external mold both sides respectively, supports the outside that back of the body rib is welded in the long limit of steel external mold.
8. the mould of a kind of foam core precast hollow slab beam as claimed in claim 6 is characterized in that: said fastening system is provided with a plurality of along the suitable length of foam core with pressing the thick stick assembly respectively to the interval.
9. the mould of a kind of foam core precast hollow slab beam as claimed in claim 7 is characterized in that: said inside and outside cushion block is concrete pad.
10. the mould of a kind of foam core precast hollow slab beam as claimed in claim 8 is characterized in that: said cross-tie is for regulating leading screw, and said brace summer is for supporting the lumps of wood, and pad is a lumps of wood piece, and pressing the thick stick pad is dutchman.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220225508 CN202572610U (en) | 2012-05-19 | 2012-05-19 | Die for foam mandrel precasting hollow plate girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220225508 CN202572610U (en) | 2012-05-19 | 2012-05-19 | Die for foam mandrel precasting hollow plate girder |
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| Publication Number | Publication Date |
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| CN202572610U true CN202572610U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220225508 Expired - Fee Related CN202572610U (en) | 2012-05-19 | 2012-05-19 | Die for foam mandrel precasting hollow plate girder |
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| CN (1) | CN202572610U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166398A (en) * | 2018-02-07 | 2018-06-15 | 郑州市市政工程总公司 | Bridge cored slab core model floating structure and technique are prevented using existing exhaust pipe tapping pipe |
| CN108798190A (en) * | 2018-08-09 | 2018-11-13 | 江西荣仁电力器材有限公司 | Electric pole, mold |
| CN109235732A (en) * | 2018-10-29 | 2019-01-18 | 中水电第十工程局（郑州）有限公司 | A kind of prefabricated hollow beam board construction method |
| CN114523564A (en) * | 2021-12-25 | 2022-05-24 | 苏州市顺发市政景观建设有限公司 | Disassembly-free foam core mold prefabricated hollow slab beam and preparation method thereof |
-
2012
- 2012-05-19 CN CN 201220225508 patent/CN202572610U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166398A (en) * | 2018-02-07 | 2018-06-15 | 郑州市市政工程总公司 | Bridge cored slab core model floating structure and technique are prevented using existing exhaust pipe tapping pipe |
| CN108166398B (en) * | 2018-02-07 | 2023-10-20 | 郑州市市政工程总公司 | Structure and process for preventing bridge hollow slab core mould from floating upwards by utilizing existing exhaust pipe drain pipe |
| CN108798190A (en) * | 2018-08-09 | 2018-11-13 | 江西荣仁电力器材有限公司 | Electric pole, mold |
| CN108798190B (en) * | 2018-08-09 | 2023-12-05 | 江西荣仁电力器材有限公司 | Telegraph pole and mould |
| CN109235732A (en) * | 2018-10-29 | 2019-01-18 | 中水电第十工程局（郑州）有限公司 | A kind of prefabricated hollow beam board construction method |
| CN109235732B (en) * | 2018-10-29 | 2020-02-14 | 中电建十一局工程有限公司 | Construction method for prefabricated hollow beam slab |
| CN114523564A (en) * | 2021-12-25 | 2022-05-24 | 苏州市顺发市政景观建设有限公司 | Disassembly-free foam core mold prefabricated hollow slab beam and preparation method thereof |
| CN114523564B (en) * | 2021-12-25 | 2024-01-30 | 苏州市顺发市政景观建设有限公司 | Disassembly-free foam core mold prefabricated hollow slab beam and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150519 |
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| EXPY | Termination of patent right or utility model |