CN1390691A - Improved formation of prestressed concretes - Google Patents
Improved formation of prestressed concretes Download PDFInfo
- Publication number
- CN1390691A CN1390691A CN02121814A CN02121814A CN1390691A CN 1390691 A CN1390691 A CN 1390691A CN 02121814 A CN02121814 A CN 02121814A CN 02121814 A CN02121814 A CN 02121814A CN 1390691 A CN1390691 A CN 1390691A
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- China
- Prior art keywords
- prestressed concrete
- molds
- sidewall
- molding
- concrete molding
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- Moulds, Cores, Or Mandrels (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
A prestress concrete moulding system which has several mould groups arranged in line in order to make their vertical axeses to a common line. Each mould group is adapted to make at least one prestress concrete plate which has a top surface for forming level plane during using. The moulding system also includes counterforce frames at a first end and a second end of each mould group line, the said counterforce frames are adapted to keep a needed strain in prestress cable passing each mould group thereby formed in the prestress concrete plate. The direction of the mould group makes the top surface form a vertical plane during moulding process.
Description
Technical field
The present invention relates to the precast prestressed concrete member that uses in a kind of building industry, relate in particular to the forming method and the device of described concrete component.
Technical background
Prestressed concrete member has obtained using widely in industry, and this is because it has very used concrete inherent characteristic effectively.Concrete has extra high compressive strength, but hot strength is relatively low, therefore by before applying maneuvering load, concrete component being applied a compressive load, if described compressive load greater than this concrete component with the tensile load of bearing, then final result is the overall pressurized of this concrete component, and can be optimized design to this concrete component thus.
A kind of application of prestressed concrete member is that precast slab is used as floor etc.The concrete slab that is used for this purposes can be defined as, and it has the sizable width that is equivalent to its length.
In the forming process of concrete slab, they are watered in batches and are smash on flat casting on flat platform usually, and the arrangement of especially embarking on journey, a plurality of thus this plates are by serial arrangement ground machine-shaping, and the reaction force piece of shared a plurality of complementations is right.Like this, this operation will be followed following process, i.e. several prestressing force cables of stretch-draw between two reaction force pieces, and place many cover board molds along this line, thus this prestressing force cable is incorporated in the mould.Concrete is poured in the mould and by maintenance then, thereby is bonded together with the prestressing force cable.After maintenance well, this cable independently all is cut off between the set of molds at reaction force piece place and each, and this mould will be removed from the good concrete slab of new maintenance subsequently.
To be used to water the capital equipment of smashing prestressed concrete plate in order using best, to make 120 to 150 meters of reaction force block gaps usually, and therefore can between the reaction force piece, place the plate of a large amount of separation with available effective means.Difficulty in this production method is to need the space to place this pouring platform.Because the width of this plate, only the required area in the floor level of mould itself just will reach 600 square metres.In addition, also need other area, so that move, install and store mould prestressing force cable and concrete is delivered to mould, the required floor area of the conventional method of moulding prestressed concrete plate is very big.
Summary of the invention
Therefore an object of the present invention is in the efficient that keeps extensive concrete slab to produce, to reduce required ground space as far as possible.
Therefore, the invention provides the molded system of a kind of prestressing force, it comprises several set of molds, and they line up a line, thereby makes the longitudinal axis conllinear of these set of molds, and each set of molds is suitable for molded at least one prestressed concrete plate.Each prestressed concrete plate has a upper surface that in use forms horizontal plane, this system also comprises the reaction force framework at the place, first and second opposite ends that is positioned at each set of molds line, described reaction force framework is applicable to a required tension force is remained in the prestressing force cable that passes each set of molds, thereby be molded in the prestressed concrete plate, wherein the orientation of set of molds makes this upper surface form a vertical plane in molding process.
Like this, the present invention includes, directed set of molds makes concrete slab moulding in a upright position, rather than as a flat pouring platform of the prior art.This is an important advantage, and it has reduced required ground space by utilizing the direct space of portion on the ground better.No matter in an environment of plant or in an open space, if plate moulding on the ground then is used for the upper space that this plate waters the ground of smashing and all can not be fully utilized.Therefore except obtaining the more ground space, the present invention also provides the molding mode of serial and parallel arranged for plate.Thus, prior art not only needs very big ground space, and requires reaction force piece wide apart.In one embodiment of the invention, adopt identical ground space width, the present invention can hold several parallel set of molds of placing, and therefore the multiple that the spacing between the reaction force piece is decreased to equals the number of the set of molds of parallel arranged.
Smash prestressed concrete plate in order vertically to water, mould need protrude upward and exceed the wide certain distance of plate, thereby surrounds the concrete that is used to pour into a mould.
In an alternate embodiment of the present invention, for having for the equipment of reaction force piece of same size and uniform distances with prior art equipment, the output of equipment of the present invention is greater than the equipment of prior art.For the same reason, this is the ability that increases parallel line for the width of reaction force piece owing to having, and originally only allows to hold the pouring platform of a level here.
In another preferred embodiment of the present invention, connect mould and can be used for connecting adjacent set of molds.The advantage of doing like this is to select all lengths of precast slab by using single or multiple set of molds.
In another preferred embodiment of the present invention, set of molds can be applied to manually or automatically opening and closing.In one embodiment of the invention, parallel set of molds of placing can a shared slide rail or a rack and pinion system, thereby by the baffle plate in the mould is moved along this slide rail or tooth bar, can make this baffle plate by individually or opening and closing jointly.In any one alternate embodiment, by baffle plate is moved and the ability of this set of molds of opening and closing can be suitable for manual system or automatic system easily in unlatching along this slide rail or tooth bar, wherein the latter may comprise a motor with the baffle plate co-ordination, is used to drive baffle plate and opens or close.
Description of drawings
Hereinafter will further describe the present invention in conjunction with the accompanying drawings easily, these accompanying drawings have been represented the scheme that the present invention is possible.Other scheme of the present invention also is possible, so the particularity in the accompanying drawing can not replace above the generality to explanation of the present invention.
Fig. 1 is a plane according to prestressed concrete formation system of the present invention.
Fig. 2 is a front view of prestressed concrete formation system shown in Figure 1.
Fig. 3 is an A-A cutaway view of prestressed concrete formation system shown in Figure 2.
The specific embodiment
Fig. 1 and 2 represented according to prestressed concrete formation system 1 of the present invention, wherein each row of set of molds 2 by serial arrangement place between reaction force framework 3a and the 3b.The prestressing force cable is fixed between reaction force framework 3a and the 3b, so that pass the molding space in each module group 2, thus ready for concrete casting being injected described molding space.After the prestressing force cable placed, described cable was subjected to a high-tension load by loading jack 4, until the prestressing force that is applied in coideal.Concrete is poured in each molding space and by maintenance then, thereby forms desirable prestressed concrete plate.This cable is cut off between each reaction force framework 3a and 3b place and each module group 2 then, and each prestressed slab is in succession by the demoulding then.
Fig. 2 has represented a critical aspects of the present invention especially, and this is to make the vertically processed moulding of prestressed slab because the orientation of set of molds 2 satisfies, and this is different with the processed on the ground moulding that lies low of plate described in the conventional method.Because this vertical orientated, the number of plastic prestressed slab is increased significantly in the unit ground space.
Referring to Fig. 1, three parallel lines of set of molds have been represented on described plane, and every line comprises quadruplet set of molds 2, and they are joined together by connecting mould, to form a long line.Every the set of molds line can form two row prestressed concrete plates.Separator can be separated into the plate with Len req along this line placement and with it.Like this, for described structure configuration, once plastic 6 row prestressed concrete plates.When estimating the conventional method when the usage level moulding, in identical floor level, there are the two capable prestressed concrete plates can be at most by while machine-shaping.
Fig. 3 has represented a sectional elevation of prestressed concrete formation system 1, has provided the detailed view of three set of molds 2.As can be seen, set of molds 2 comprises a center fixed core 7 and is positioned at the sidewall 6a and the 6b of this core the right and left.The space 8 that is limited by center fixed core 7 and sidewall 6a provides the position for the moulding of prestressed concrete plate.The prestressing force cable passes this space just and between reaction force framework 3a and 3b, concrete is poured into then.Be held in place in this forming process in order to ensure each sidewall 6a and 6b, be provided with a securing rod 13, it comprises the part and the projection that optionally is engaged on sidewall 6a and the 6b that are hingedly mounted on the center fixed core 7.When needs cooperated, securing rod 13 was rotated, so that projection is engaged on sidewall 6a and the 6b, and rotates a lock nut, thereby with described securing rod 13 locks in place.
Another key character of the present invention is the application of this equipment for automation.Being provided with one in the present embodiment is used for automatically making sidewall 6a and 6b relative to mechanism that center fixed core 7 moves.The motion of sidewall 6a and 6b is necessary, and this is in order to be that disturbing concrete prepares molding space 8, simultaneously in order to make the prestressed concrete plate demoulding after the maintenance.Because vertical orientated, described sidewall is inevitable very big and be difficult to handle.Yet because this system is suitable for realizing automation, so this shortcoming that we are thought is actually a sizable advantage, it has alleviated the labour intensive degree in the process of the described prestressed concrete plate of common moulding.
In this embodiment, automatic system 9 comprises a continuous chain 10, and this chain 10 is meshed with sprocket wheel 11 on being positioned at each sidewall 6a and 6b.Motor (not shown) in each sidewall 6a and the 6b is connected with described sprocket wheel 11, thereby each sidewall 6a and 6b can move be moved by a kind of motorization respectively and leave center fixed core 7.Automatic system 9 is also subsidiary in addition a series of end retainers 12, can not exceed by 10 restricted portions of continuous chain to guarantee sidewall 6a and 6b.
In another embodiment of the present invention, the unlatching of sidewall 6a and 6b and closed procedure can be carried out by push arm 10, and this push arm 10 is handled by a hydraulic system.Each push arm can be locked on the wheel assembly 11 of sidewall 6a and 6b, thereby sidewall 6a or 6b can independently or in groups, be moved apart center fixed core 7 along identical direction by the push arm of mechanical handling.
Because described set of molds vertical orientated, consider 1.0 to 2.4m width of a typical plate simultaneously, under the condition that does not have some device that is used for support operation person, the top of contact mould, it is impossible that securing rod 13 for example is installed.Therefore, also on each sidewall 6a and 6b, be provided with a workbench 14, so that in forming process, provide one to be used for support operation person's convenience, the device of safety.Be easily, described workbench 14 is folding, thereby avoids disturbing mutually with adjacent set of molds when sidewall is moved.This shows that workbench 14 is in order to make the workman obtain safety and convenient in the mould assembling and the concrete formation course of work.It can be placed in any height place (intermediate altitude place shown in Fig. 3 or overhead height place) that the workman is worked effectively.
Claims (21)
1. prestressed concrete molding-system, it comprises several set of molds, they line up a line, thereby make the longitudinal axis conllinear of these set of molds, and each set of molds is suitable for molded at least one prestressed concrete plate, each prestressed concrete plate has a upper surface that in use forms horizontal plane, this molding-system also comprises the reaction force framework at the first and second relative end places that are positioned at each set of molds line, described reaction force framework is applicable to a required tension force is remained in the prestressing force cable that passes each set of molds, thereby be molded in the prestressed concrete plate, wherein the orientation of set of molds makes this upper surface form a vertical plane in molding process.
2. prestressed concrete molding-system as claimed in claim 1, wherein each set of molds comprises provision for disengagement, is used for optionally making at least one sidewall and this set of molds to be separated, so that take out prestressed concrete plate.
3. prestressed concrete molding-system as claimed in claim 1, wherein adjacent set of molds can connect mould by one and be joined together, to form a monomer molded assembly that is applicable to a molded monomer prestressed concrete plate.
4. prestressed concrete molding-system as claimed in claim 3, wherein this molded assembly comprises the sidewall that can be connected with the sidewall of adjacent set of molds, to form at least one continuous longwell.
5. prestressed concrete molding-system as claimed in claim 2, wherein this provision for disengagement is mechanically operated.
6. as claim 2 or 3 described prestressed concrete molding-systems, wherein this provision for disengagement is control automatically.
7. as any one the described prestressed concrete molding-system in the claim 2 to 6, wherein this set of molds is applicable to simultaneously molded two row prestressed concrete plates.
8. as any one described prestressed concrete molding-system of above-mentioned claim, wherein this set of molds comprises at least one separator, and it is used for a monomer prestressed concrete plate is separated at least two prestressed concrete plates.
9. prestressed concrete molding-system as claimed in claim 8, wherein this at least one separator can optionally be placed, so that change the length of described at least two prestressed concrete plates.
10. prestressed concrete molding-system as claimed in claim 7, wherein this set of molds comprises a center fixed core and two sidewalls, wherein each plate is molded between this intermediate core and one of them the described sidewall.
11. prestressed concrete molding-system as claimed in claim 10, wherein this sidewall is engaged by this provision for disengagement, so that take this set of molds apart.
12. as any one the described prestressed concrete molding-system in the claim 2 to 11, wherein this provision for disengagement comprises that is subjected to a mechanically operated push arm, it is connected with a wheel assembly, and described wheel assembly is installed on each sidewall.
13. as any one the described prestressed concrete molding-system in the claim 2 to 11, wherein this provision for disengagement comprises a sprocket wheel that is subjected to mechanically operated continuous chain and is meshed with this chain, this sprocket wheel is installed at least one sidewall.
14. as any one the described prestressed concrete molding-system in the claim 2 to 11, wherein this provision for disengagement comprises that a tooth bar and one are subjected to mechanically operated gear, this gear is suitable for being meshed with this tooth bar, and is installed at least one sidewall.
15. as any one the described prestressed concrete molding-system in the above-mentioned claim, wherein this system has several set of molds lines that is arranged in parallel.
16. as any one the described prestressed concrete molding-system in the above-mentioned claim, wherein this sidewall comprises locking device, is used for before this mould of dismounting the sidewall locks in place.
17. prestressed concrete molding-system as claimed in claim 16, wherein this locking mechanism comprises several thread lock bars, and it is applicable to detachably with relative sidewall and matches.
18. prestressed concrete molding-system as claimed in claim 16, wherein this locking mechanism comprises several thread lock bars, and it is applicable to detachably and matches with the center fixed core.
19. as any one described prestressed concrete molding-system in the claim 13 to 18, wherein each sidewall comprises a folding workbench, it is used for molding process support operation person.
20. prestressed concrete molding-system as claimed in claim 12, wherein when handling this push arm, this provision for disengagement is applicable to the sidewall on each second side of sidewall on each first side of opening mold group simultaneously and shutoff device set of molds, thereby the sidewall on the set of molds of adjacent parallel can not be in contact with one another in described operating process.
21. prestressed concrete plate of making by the prestressed concrete molding-system, described system comprises several set of molds, they line up a line, thereby make the longitudinal axis conllinear of these set of molds, and each set of molds is suitable for molded prestressed concrete plate, each prestressed concrete plate has a upper surface that in use forms horizontal plane, this molding-system also comprises the reaction force framework at the first and second relative end places that are positioned at each set of molds line, described reaction force framework is applicable to a required tension force is remained in the prestressing force cable that passes each set of molds, thereby be molded in the prestressed concrete plate, wherein the orientation of set of molds makes this upper surface form a vertical plane in molding process.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG2001033802 | 2001-06-07 | ||
| SG2001003380 | 2001-06-07 | ||
| SG200103380-2 | 2001-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1390691A true CN1390691A (en) | 2003-01-15 |
| CN1176792C CN1176792C (en) | 2004-11-24 |
Family
ID=20430779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021218145A Expired - Fee Related CN1176792C (en) | 2001-06-07 | 2002-06-07 | Improved formation of prestressed concretes |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1176792C (en) |
| MY (1) | MY131261A (en) |
| SG (1) | SG93922A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102947066A (en) * | 2010-06-18 | 2013-02-27 | 奥菲奇内·马卡费里股份公司 | Mould for the construction of a protection and securing element of the mattress type and relevant method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112917653B (en) * | 2021-03-09 | 2022-08-30 | 湖北七杰新材料科技有限公司 | Prestressed concrete slab mould and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL62650C (en) * | 1943-04-08 | |||
| GB700947A (en) * | 1951-08-29 | 1953-12-16 | Laing & Son Ltd John | Improvements in the manufacture of precast prestressed concrete units |
| GB700497A (en) * | 1952-07-02 | 1953-12-02 | Laing & Son Ltd John | A device for use in the manufacture of precast prestressed concrete units |
| DE3543369A1 (en) * | 1985-12-07 | 1987-06-11 | Trigon Bewehrungstechnik Vertr | Process for reinforcing prefabricated reinforced-concrete compound units and apparatus for carrying out the process |
| DE4203895C2 (en) * | 1992-02-11 | 1996-08-29 | Dyckerhoff & Widmann Ag | Device for producing prefabricated components from prestressed concrete with immediate bond, in particular prestressed concrete sleepers |
-
2001
- 2001-06-07 SG SG200103380A patent/SG93922A1/en unknown
-
2002
- 2002-05-17 MY MYPI20021824A patent/MY131261A/en unknown
- 2002-06-07 CN CNB021218145A patent/CN1176792C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102947066A (en) * | 2010-06-18 | 2013-02-27 | 奥菲奇内·马卡费里股份公司 | Mould for the construction of a protection and securing element of the mattress type and relevant method |
| CN102947066B (en) * | 2010-06-18 | 2015-11-25 | 奥菲奇内·马卡费里股份公司 | For constructing mould and the correlation method of pad-type protection and retaining element |
Also Published As
| Publication number | Publication date |
|---|---|
| MY131261A (en) | 2007-07-31 |
| CN1176792C (en) | 2004-11-24 |
| SG93922A1 (en) | 2003-01-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20041124 Termination date: 20190607 |