CN105729621B - A kind of concrete component prefabricated components - Google Patents
A kind of concrete component prefabricated components Download PDFInfo
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- CN105729621B CN105729621B CN201610226454.XA CN201610226454A CN105729621B CN 105729621 B CN105729621 B CN 105729621B CN 201610226454 A CN201610226454 A CN 201610226454A CN 105729621 B CN105729621 B CN 105729621B
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- bolt
- spring
- collapsible form
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- check
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a kind of concrete component prefabricated components, including grillage, fixed form and collapsible form, the fixed form is fixed on grillage, fixed form and collapsible form are in face relationship, there is the gap for clamping template between fixed form and collapsible form, it further include the follower bolt being threadedly connected on grillage, the end of the follower bolt and the outer side contacts of collapsible form, it further include spring and check bolt, the check bolt is threadedly connected on grillage, and the axis of check bolt is parallel with the axis of hold-down bolt, the spring is set between collapsible form and check bolt, in working condition, both ends of the spring is in elastic compression by the compression of collapsible form and check bolt respectively；It further include prefabricated and sealing strip.The present invention provides a whole set of devices for being used for precast concrete, can reach during prefabricated components are cured, reduce spillage amount or avoid the technical effect of spillage.
Description
Technical field
The present invention relates to the prefabricated apparatus fields of concrete component, more particularly to a kind of concrete component prefabricated components.
Background technique
Occur the phenomenon that crack too early to make up concrete, used (load) in the past in component, and gave concrete one in advance
A precompression, i.e., in the tensile region of concrete, reinforcing bar is carried out tensioning, utilizes the retraction of reinforcing bar by the method manually reinforced
Power makes concrete in tension area in advance by pressure.This precharge pressure stored, when component bears to generate pulling force by external load
When, the precompression in concrete in tension zone is offset first, then increases with load, just makes concrete in tension, and which limits mixed
The elongation for coagulating soil, delays or crack occurs, the concrete of such form is prestressed concrete.Due to prestressed concrete
Soil has many advantages, such as that crack resistance is good, rigidity is big, self weight vertical shear and principal tensile stress small, that can reduce beams of concrete, can
The stability and fatigue performance for significantly improving compression member have excellent applying value in existing building construction.
The link that slurries leak when preventing concreting is directed in prestressed concrete casting process, and it is many anti-
The effect of spillage technology fails to get a desired effect, and leads to the quality for directly affecting construction efficiency and concreting.It is existing
Generally all directly is being contacted with steel plate using steel plate and compressing, increase sealing strip etc., to prevent concrete slurry from leaking, but this side
Method not only increases certain difficulty to construction, also fails to reach ideal mortar leakage prevention effect.
Summary of the invention
For be directed in above-mentioned prestressed concrete casting process prevent concreting when slurries leakage link,
And the effect of many mortar leakage prevention technologies fails to get a desired effect, and leads to directly affect construction efficiency and concreting
The problem of quality, the present invention provides a kind of concrete component prefabricated components.
To solve the above problems, a kind of concrete component prefabricated components provided by the invention are solved by following technical essential
Certainly problem: a kind of concrete component prefabricated components, including grillage, fixed form and collapsible form, the fixed form are fixed on
On grillage, fixed form and collapsible form are in face relationship, are had between fixed form and collapsible form for clamping template
Gap, further includes the hold-down bolt being threadedly connected on grillage, and the axis of the hold-down bolt is located at the width side in the gap
To the end of the hold-down bolt and the outer side contacts of collapsible form further include spring and check bolt, the check bolt spiral shell
Line is connected on grillage, and the axis of check bolt is parallel with the axis of hold-down bolt, the spring be set to collapsible form with
Between check bolt, in working condition, both ends of the spring is respectively by the compression of collapsible form and check bolt and in elasticity pressure
Contracting state；It further include prefabricated below fixed form and collapsible form, the fixed form and collapsible form are shelved
In on prefabricated platform, it is provided between the bottom surface of the fixed form and prefabricated, between the bottom surface of collapsible form and prefabricated
Sealing strip.
Specifically, the above fixed form, collapsible form and prefabricated composition concrete mortar type chamber, in this way, with mo(u)ld top half
Concrete mortar is inserted in chamber, obtains required concrete prefabricated element after concrete mortar solidification.In the prior art, to subtract
Shrinkage of the small concrete mortar in process of setting, can generally add swelling agent in concrete mortar, however, ordinary circumstance
Lower concrete mortar still has small contraction, and for prestressed concrete, the above contraction is the important of slurries leakage when pouring
The origin cause of formation.
In this case, in Guan Moshi, i.e. spacing between adjustment fixed form and collapsible form, to obtain design size type chamber
When width: by rotating hold-down bolt, the end of hold-down bolt acts on the outside of collapsible form, obtains fixed form and activity
The specified gap width of template in the above gap after fill concrete mortar, can make the spring generation be in by rotating check bolt
The elastic deformation of compressive state, the above elastic deformation is that collapsible form generates the thrust to fixed form side, in this way, in coagulation
Soil sand is starched in solidification process, if concrete mortar is shunk, the above spring deforms generated elastic force and forces collapsible form
It is close between concrete mortar, fixed form and concrete mortar, concrete mortar and sealing strip, sealing strip and different templates
Fitting reaches the technical effect for reducing spillage amount or avoiding spillage.
Above technical scheme provides a set of concrete component fabricated device, can quickly finish Guan Mo, die sinking and pass
Prestressing force is applied to collapsible form after mould, the above prestressing force can be used for preventing spillage in concrete mortar solidification process or reduce solid
Spillage amount during change, conducive to the quality for guaranteeing precast concrete.
This case,, can before fill concrete mortar after adjusting collapsible form and fixed form spacing when using
Increasing a both ends in collapsible form and fixed form, the distance rod with the two interior side contacts, preferably distance rod are located at gap respectively
Upper end, then pass through check bolt compressed spring.After fill concrete mortar, to a certain extent to concrete mortar solidification,
When i.e. concrete mortar has some strength, then remove distance rod, to avoid spring elastic force to fixed form and collapsible form
Between the size of type chamber impact.
Further technical solution are as follows:
As a kind of concrete scheme being easily achieved, the grillage is in U-shape, and the fixed form and collapsible form distinguish position
In the inside that grillage open end is not ipsilateral.In the above structure, plate can be threadedly connected to simultaneously by check bolt and hold-down bolt
The side of frame, the adjustment for the compression of complete paired springs and to collapsible form position.
It since the shrinkage of concrete mortar is smaller relative to gap width between fixed form and collapsible form, therefore is benefit
In mortar leakage prevention effect, the biggish spring of coefficient of elasticity is preferably selected, the spring is the bullet being formed by stacking by multiple disk springs
Spring group.
It is described conducive to prefabricated components forming quality to avoid collapsible form that excessive skew occurs under the bullet stress of spring
Spring is one, and the axis of the spring and the axis collinear of hold-down bolt, further include locking with hold-down bolt clearance fit
Plate, the locking plate are set between spring and check bolt, and the locking plate is for the stress between spring and check bolt
Transmitting, more than one of the check bolt, and different check bolts are set to the not ipsilateral of hold-down bolt.
It is described conducive to prefabricated components forming quality to avoid collapsible form that excessive skew occurs under the bullet stress of spring
Spring is more, and more springs are annularly uniformly distributed relative to the axis of hold-down bolt, further includes and hold-down bolt clearance fit
Locking plate, the locking plate are set between spring and check bolt, and the locking plate is used between spring and check bolt
Stress transfer, more than one of the check bolt, and different check bolts are set to the not ipsilateral of hold-down bolt.
To be provided with for braking on the hold-down bolt and check bolt convenient for rotating hold-down bolt and check bolt
The turning handle of each autorotation.
As specific setting form of the sealing strip in the present apparatus: being provided with two length on the prefabricated upper surface
It is oriented parallel to the groove of fixed form length direction or collapsible form length direction, the section semicircular in shape of the groove, two
The section of bar sealing strip is circle, and the diameter of sealing strip is equal with the groove face diameter of the groove, two sealing strips difference
It is arranged in different grooves；
The notch that surface is arcwall face is provided at fixed form and the interior angle of collapsible form bottom surface, the sealing strip
Surface is bonded with the notch surface.
In the setting form of the above sealing strip, convenient for by the way that when type chamber is in the milk, sealing strip is in concrete slurry gravity
It deforms under extruding, further increases its compression between groove, notch surface, realize good sealing effect.Into
One step, in concrete mortar solidification process, fixed form and collapsible form may have relative motion relative to prefabricated,
The above sealing strip set-up mode, can be in the motion process of fixed form and/or collapsible form, and sealing strip short transverse is by into one
Step is squeezed and deformed, therefore in such cases, sealing strip is still able to maintain good sealing effect.
As the preferred embodiment convenient for demoulding, increase sealing strip placement stability, the section of the notch is a quarter
Circle.
The invention has the following advantages:
In this case, in Guan Moshi, i.e. spacing between adjustment fixed form and collapsible form, to obtain design size type chamber
When width: by rotating hold-down bolt, the end of hold-down bolt acts on the outside of collapsible form, obtains fixed form and activity
The specified gap width of template in the above gap after fill concrete mortar, can make the spring generation be in by rotating check bolt
The elastic deformation of compressive state, the above elastic deformation is that collapsible form generates the thrust to fixed form side, in this way, in coagulation
Soil sand is starched in solidification process, if concrete mortar is shunk, the above spring deforms generated elastic force and forces collapsible form
It is close between concrete mortar, fixed form and concrete mortar, concrete mortar and sealing strip, sealing strip and different templates
Fitting reaches the technical effect for reducing spillage amount or avoiding spillage.
Above technical scheme provides a set of concrete component fabricated device, can quickly finish Guan Mo, die sinking and pass
Prestressing force is applied to collapsible form after mould, the above prestressing force can be used for preventing spillage in concrete mortar solidification process or reduce solid
Spillage amount during change, conducive to the quality for guaranteeing precast concrete.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of one specific embodiment of concrete component prefabricated components of the present invention.
Figure acceptance of the bid note is respectively as follows: 1, fixed form, 2, collapsible form, 3, grillage, 4, check bolt, 5, locking plate, 6, pressure
Tight bolt, 7, spring, 8, sealing strip, 9, prefabricated.
Specific embodiment
The present invention provides a kind of concrete component prefabricated components, and for solving: prestressed concrete pours in the prior art
The link that slurries leak when preventing concreting is directed to during building, and the effect of many mortar leakage prevention technologies fails to reach
To expected effect, the problem of leading to directly affect the quality of construction efficiency and concreting.Below with reference to embodiment to this
Invention is described in further detail, but the present invention is not limited only to following embodiment:
Embodiment 1:
As shown in Figure 1, a kind of concrete component prefabricated components, including grillage 3, fixed form 1 and collapsible form 2, it is described
Fixed form 1 is fixed on grillage 3, and fixed form 1 and collapsible form 2 are in face relationship, fixed form 1 and collapsible form 2 it
Between there is gap for clamping template, further include the hold-down bolt being threadedly connected on grillage 3, the axis of the hold-down bolt
The outer side contacts of width direction positioned at the gap, the end of the hold-down bolt and collapsible form 2, further include spring 7 and
Check bolt 4, the check bolt 4 are threadedly connected on grillage 3, and the axis of the axis of check bolt 4 and hold-down bolt 6 is flat
Row, the spring 7 are set between collapsible form 2 and check bolt 4, and in working condition, 7 both ends of spring are respectively by collapsible form
2 and check bolt 4 compression and be in elastic compression；It further include positioned at the pre- of 2 lower section of fixed form 1 and collapsible form
Platform 9 processed, the fixed form 1 and collapsible form 2 are held on prefabricated 9, the bottom surface of the fixed form 1 with prefabricated 9
Between, between the bottom surface of collapsible form 2 and prefabricated 9 be provided with sealing strip 8.
Specifically, the above fixed form 1, collapsible form 2 and prefabricated 9 composition concrete mortar type chamber, in this way, above
Concrete mortar is inserted in type chamber, obtains required concrete prefabricated element after concrete mortar solidification.In the prior art, it is
Reduce shrinkage of the concrete mortar in process of setting, swelling agent can be generally added in concrete mortar, however, general feelings
Concrete mortar still has small contraction under condition, and for prestressed concrete, the above contraction is the weight that slurries leak when pouring
Want the origin cause of formation.
In this case, in Guan Moshi, i.e. spacing between adjustment fixed form 1 and collapsible form 2, to obtain design size type
When chamber width: by rotating hold-down bolt 6, the end of hold-down bolt 6 acts on the outside of collapsible form 2, obtains fixed form 1
With the specified gap width of collapsible form 2, in the above gap after fill concrete mortar, bullet can be made by rotating check bolt 4
Spring 7 generates the elastic deformation in compressive state, and the above elastic deformation is that collapsible form 2 generates the thrust to 1 side of fixed form,
In this way, in concrete mortar solidification process, if concrete mortar is shunk, with elastic force caused by 7 flexible deformation of upper spring
Force collapsible form 2 and concrete mortar, fixed form 1 and concrete mortar, concrete mortar and sealing strip 8, sealing strip 8 with
It is fitted closely between different templates, reaches the technical effect for reducing spillage amount or avoiding spillage.
Above technical scheme provides a set of concrete component fabricated device, can quickly finish Guan Mo, die sinking and pass
Prestressing force is applied to collapsible form 2 after mould, the above prestressing force can be used for preventing spillage or reduction in concrete mortar solidification process
Spillage amount in solidification process, conducive to the quality for guaranteeing precast concrete.
This case is when using, after adjusting collapsible form 2 and 1 spacing of fixed form, before fill concrete mortar,
A both ends being increased in collapsible form 2 and fixed form 1, the distance rod with the two interior side contacts, preferably distance rod are located at respectively
The upper end in gap, then pass through 4 compressed spring 7 of check bolt.After fill concrete mortar, it is cured to centainly to concrete mortar
When degree, i.e. concrete mortar have some strength, then distance rod is removed, to fixed form 1 and lived to avoid the elastic force of spring 7
The size of type chamber impacts between moving template 2.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, as a kind of tool being easily achieved
Body scheme, the grillage 3 are in U-shape, and the fixed form 1 and collapsible form 2 are located at not ipsilateral interior in 3 open end of grillage
Side.In the above structure, the side of grillage 3 can be threadedly connected to simultaneously by check bolt 4 and hold-down bolt 6, for completion pair
The compression of spring 7 and adjustment to 2 position of collapsible form.
Since the shrinkage of concrete mortar is smaller relative to gap width between fixed form 1 and collapsible form 2, therefore it is
Conducive to mortar leakage prevention effect, the biggish spring of coefficient of elasticity is preferably selected, the spring 7 is formed by stacking by multiple disk springs
Groups of springs.
To avoid collapsible form 2 that excessive skew occurs under the bullet stress of spring 7, it is conducive to prefabricated components forming quality, institute
Stating spring 7 is one, and the axis of the spring 7 and the axis collinear of hold-down bolt 6 further include and 6 clearance fit of hold-down bolt
Locking plate 5, the locking plate 5 is set between spring 7 and check bolt 4, and the locking plate 5 is for spring 7 and locking spiral shell
Stress transfer between bolt 4, the check bolt 4 more than one, and different check bolts 4 are set to the difference of hold-down bolt 6
Side.
Embodiment 3:
The present embodiment is on the basis of embodiment 1 further qualified the present invention, as shown in Figure 1, to avoid movable mold
Under the bullet stress of spring 7 excessive skew occurs for plate 2, is conducive to prefabricated components forming quality, and the spring 7 is more, more bullets
Spring 7 is annularly uniformly distributed relative to the axis of hold-down bolt 6, further includes the locking plate 5 with 6 clearance fit of hold-down bolt, described anti-
Deals 5 is set between spring 7 and check bolt 4, and the locking plate 5 is passed for the stress between spring 7 and check bolt 4
It passs, the check bolt 4 more than one, and different check bolts 4 are set to the not ipsilateral of hold-down bolt 6.
Embodiment 4:
The present embodiment is further qualified on the basis of any of the above one embodiment, as shown in Figure 1, for convenient for rotation
Hold-down bolt 6 and check bolt 4 are provided on the hold-down bolt 6 and check bolt 4 for braking turning for each autorotation
Handle.
As specific setting form of the sealing strip 8 in the present apparatus: being provided on prefabricated 9 upper surface two long
Degree is oriented parallel to the groove of 2 length direction of 1 length direction of fixed form or collapsible form, and the section of the groove is in semicircle
Shape, the section of two sealing strips 8 is circle, and the diameter of sealing strip 8 is equal with the groove face diameter of the groove, two sealings
Item 8 is arranged in respectively in different grooves；
The notch that surface is arcwall face, the sealing strip are provided at the interior angle of 2 bottom surface of fixed form 1 and collapsible form
8 surface is bonded with the notch surface.
In the setting form of the above sealing strip 8, convenient for by the way that when type chamber is in the milk, sealing strip 8 is in concrete slurry gravity
Extruding under deform, further increase its compression between groove, notch surface, realize good sealing effect.
Further, in concrete mortar solidification process, fixed form 1 and collapsible form 2 may have relatively relative to prefabricated 9
Movement, above 8 set-up mode of sealing strip can be in the motion process of fixed form 1 and/or collapsible form 2,8 height of sealing strip
Direction is pressed further by deformation, therefore in such cases, sealing strip 8 is still able to maintain good sealing effect.
As the preferred embodiment for disposing stability convenient for demoulding, increase sealing strip 8, the section of the notch is a quarter
Circle.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
The other embodiments obtained in the case where not departing from technical solution of the present invention, should be included within the scope of the present invention.
Claims (6)
1. a kind of concrete component prefabricated components, including grillage (3), fixed form (1) and collapsible form (2), the stent
Plate (1) is fixed on grillage (3), and fixed form (1) and collapsible form (2) are in face relationship, fixed form (1) and collapsible form
(2) there is the gap for clamping template between, further include the hold-down bolt (6) being threadedly connected on grillage (3), the compression
The axis of bolt (6) is located at the width direction in the gap, the end of the hold-down bolt (6) and the outside of collapsible form (2)
Contact, which is characterized in that further include spring (7) and check bolt (4), the check bolt (4) is threadedly connected to grillage (3)
On, and the axis of check bolt (4) is parallel with the axis of hold-down bolt (6), the spring (7) be set to collapsible form (2) with
Between check bolt (4), in working condition, spring (7) both ends are respectively by the compression of collapsible form (2) and check bolt (4)
And it is in elastic compression；
It further include prefabricated (9) below fixed form (1) and collapsible form (2), the fixed form (1) and movable mold
Plate (2) is held on prefabricated (9), between the bottom surface of the fixed form (1) and prefabricated (9), the bottom of collapsible form (2)
Sealing strip (8) are provided between face and prefabricated (9)；The grillage (3) is in U-shape, the fixed form (1) and collapsible form
(2) it is located at the not ipsilateral inside in grillage (3) open end；The spring (7) is the bullet being formed by stacking by multiple disk springs
Spring group.
2. a kind of concrete component prefabricated components according to claim 1, which is characterized in that the spring (7) is one,
The axis of the spring (7) and the axis collinear of hold-down bolt (6) further include and the locking plate of hold-down bolt (6) clearance fit
(5), the locking plate (5) is set between spring (7) and check bolt (4), and the locking plate (5) is for spring (7) and anti-
Stress transfer between loose bolt (4), more than one of the check bolt (4), and different check bolts (4) are set to compression spiral shell
Bolt (6) it is not ipsilateral.
3. a kind of concrete component prefabricated components according to claim 1, which is characterized in that the spring (7) is more,
More springs (7) are annularly uniformly distributed relative to the axis of hold-down bolt (6), further include anti-with hold-down bolt (6) clearance fit
Deals (5), the locking plate (5) are set between spring (7) and check bolt (4), and the locking plate (5) is used for spring (7)
With the stress transfer between check bolt (4), more than one of the check bolt (4), and different check bolt (4) is set to pressure
Tightly bolt (6) is not ipsilateral.
4. a kind of concrete component prefabricated components as claimed in any of claims 1 to 3, which is characterized in that described
The turning handle for braking each autorotation is provided on hold-down bolt (6) and check bolt (4).
5. a kind of concrete component prefabricated components as claimed in any of claims 1 to 3, which is characterized in that described
It is provided with two length directions on the upper surface of prefabricated (9) and is parallel to fixed form (1) length direction or collapsible form (2) length
The groove in direction is spent, the section semicircular in shape of the groove, the section of two sealing strips (8) is circle, and sealing strip (8)
Diameter is equal with the groove face diameter of the groove, and two sealing strips (8) are arranged in respectively in different grooves；
The notch that surface is arcwall face, the sealing strip are provided at fixed form (1) and the interior angle of collapsible form (2) bottom surface
(8) surface is bonded with the notch surface.
6. a kind of concrete component prefabricated components according to claim 5, which is characterized in that the section of the notch is four
/ mono- circle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610226454.XA CN105729621B (en) | 2016-04-13 | 2016-04-13 | A kind of concrete component prefabricated components |
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| CN105729621B true CN105729621B (en) | 2019-02-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107379219A (en) * | 2017-07-25 | 2017-11-24 | 山东久同工业技术有限公司 | A kind of side template and its application process for being used to prepare muscle prefabricated component |
| CN108506024A (en) * | 2018-04-17 | 2018-09-07 | 蓝传雯 | A kind of construction method and supporting mold of Tunnel |
| CN111877753B (en) * | 2020-07-22 | 2021-12-14 | 中铁十局集团第二工程有限公司 | Supporting and mounting equipment for concrete construction formwork |
| CN111844381B (en) * | 2020-07-22 | 2021-07-06 | 张国栋 | Reinforced structure for simple concrete construction formwork |
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| CN201486141U (en) * | 2009-03-05 | 2010-05-26 | 通州市第二建筑安装工程公司 | Clamping device of two parallel templates |
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| CN204546759U (en) * | 2015-04-08 | 2015-08-12 | 中国水利水电第五工程局有限公司 | Prestressed concrete mortar leakage prevention device |
| CN205572669U (en) * | 2016-04-13 | 2016-09-14 | 成都亨通兆业精密机械有限公司 | Mix prefabricated device of earth component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10205133A (en) * | 1997-01-24 | 1998-08-04 | Naohisa Ishida | Upper surface single action holding jig |
| CN201486141U (en) * | 2009-03-05 | 2010-05-26 | 通州市第二建筑安装工程公司 | Clamping device of two parallel templates |
| CN201714094U (en) * | 2010-06-11 | 2011-01-19 | 中国建筑第七工程局有限公司 | Building formwork fixture |
| CN204357124U (en) * | 2014-11-20 | 2015-05-27 | 陈丹燕 | A kind of template clamping and fixing device of building operations |
| CN204546759U (en) * | 2015-04-08 | 2015-08-12 | 中国水利水电第五工程局有限公司 | Prestressed concrete mortar leakage prevention device |
| CN104790659A (en) * | 2015-04-15 | 2015-07-22 | 中国建筑第二工程局有限公司 | Flexible reinforcing system of concrete column formworks and concrete column construction method |
| CN205572669U (en) * | 2016-04-13 | 2016-09-14 | 成都亨通兆业精密机械有限公司 | Mix prefabricated device of earth component |
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| CN105729621A (en) | 2016-07-06 |
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