CN108222285B - A kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method - Google Patents
A kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method Download PDFInfo
- Publication number
- CN108222285B CN108222285B CN201810097123.XA CN201810097123A CN108222285B CN 108222285 B CN108222285 B CN 108222285B CN 201810097123 A CN201810097123 A CN 201810097123A CN 108222285 B CN108222285 B CN 108222285B
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- lower support
- magnetic suspension
- steel bar
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- 239000004567 concrete Substances 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 18
- 230000004807 localization Effects 0.000 title claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000005484 gravity Effects 0.000 claims description 9
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000011440 grout Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
- E04B1/4164—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head with an adjustment sleeve
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention provides a kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method, comprising the following steps: 1) upper concrete component is first lifted into setting position；2) the first label at least two, the second label are respectively set on lower concrete component and upper concrete component；3) support and upper support in the case where the first label and the second mark are placed respectively；The lower support and upper support are electromagnet, and homopolarity is opposite, and are connected on same circuit；4) it is powered by control mechanism control circuit, upper support is under magneticaction, and lower support centering, and then completes the positioning of upper concrete component and lower concrete component；5) size of current is controlled by control mechanism, falls in concrete component on cushion block；6) upper support and lower support are extracted out.Series circuit in the present invention, it is ensured that multiple groups support mechanism magnetic picture is same, guarantees that support is stablized, by magnetic suspension principle, realizes the reinforcing bar fast accurate centering of upper and lower concrete component, time saving and energy saving.
Description
Technical field
The invention belongs to assembled architecture field, specifically a kind of assembly concrete member reinforcing steel bar magnetic suspension connection positioning
Method.
Background technique
The feature of assembled architecture maximum is green construction, energy conservation and environmental protection, and used precast concrete is being constructed
Assembled in situ, connection can avoid or mitigate influence of the construction to surrounding enviroment, and mechanization degree is high, and construction can be greatly shortened
Duration reduces construction site human resources investment.In terms of global environment, construction industry mode of construction is to assembled ecology potential must
Row.
Prefabricated concrete structure refers to the coagulation being assembled by precast concrete by reliable connection type
Soil structure, then by prefabricated concrete structure and pouring concrete, strength cement-based grouting material behind scene formed it is whole be assemble it is whole
Body formula concrete structure.Currently, the principal mode that the connection of assembly concrete component uses is grout sleeve connection, upper concrete
Grout sleeve is equipped in component, while one end of grout sleeve is connected with non-grouting connection reinforcing bar, is equipped in lower concrete component
Grouting connection reinforcing bar stretches out outside lower concrete component.The core and difficult point of assembly concrete component connection are upper and lower concrete
The quality problems that reinforcing bar connects in component, the prior art, technique are difficult to ensure that non-grouting connection reinforcing bar and grouting connection reinforcing bar exist
It realizes and is coaxial docking in grout sleeve.According to statistics, in practical projects, the precise alignment bonding ratio of sleeve and grouting connection reinforcing bar
About 20% or so, reason mainly has: 1) same component ends grouting connection reinforcing bar is difficult to be inserted into relevant sleeve, leads to component
It is difficult to install；2) it is close to sleeve lining when grouting linkage section reinforcing bar insertion grout sleeve, in subsequent grouting, slurry cannot be complete
Package grouting linkage section reinforcing bar, to make the sleeve connection intensity sharp fall, the load of serious weakened members connecting portion
Transmitting.
Summary of the invention
Of the invention is fixed the technical problem to be solved is that a kind of assembly concrete member reinforcing steel bar magnetic suspension connection is provided
Position method realizes concrete component precise positioning up and down, and then to realize that non-grouting connection reinforcing bar and grouting connect reinforcing bar coaxially right
It connects.
To achieve the goals above, technical scheme is as follows:
A kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method, comprising the following steps:
1) it makes marks: the first label at least two being respectively set on the fitting surface of lower concrete component, in upper concrete
The side wall setting of component the second label corresponding with the first marker number and position；
2) rough centering: being first lifted into setting position for upper concrete component, and it is right roughly to carry out upper and lower concrete component
In, while support and upper support in the case where the first label and the second mark are placed respectively, the lower support and upper support are electricity
Magnet, and it is opposite with magnetic pole, lower support and upper support interior loop are connected on same circuit；Two neighboring upper support, adjacent two
It is connected by connecting rod between a lower support；
3) precise alignment: being powered by control mechanism control circuit, and according to the model of upper concrete component, by electric current tune
It is whole to arrive suitable size, so that the mutual expelling force between support and lower support is equal to upper concrete component gravity, hoist cable is in relaxation shape
State；Simultaneously, upper support is under magneticaction and in lower support pair, and then completes upper concrete component and lower concrete component
Precise alignment；
4) it installs: after upper concrete component precise alignment is stablized, size of current being controlled by control mechanism to adjust
The magnetic force of support and lower support, makes magnetic force uniform speed slow become smaller, and upper concrete component gravity is greater than between upper support and lower support
Mutual expelling force, upper concrete component under gravity, fall on setting position under uniform speed slow, during which hoist cable is kept to be in relaxation
State falls in concrete component on the cushion block on lower concrete component, at this point, the grouting on lower concrete component connects
It connects reinforcing bar to be inserted into the sleeve of upper concrete component, and it is coaxial with the non-grouting of the upper concrete component sleeve other end to connect reinforcing bar
Docking；
5) remove: the upper support of extraction and lower support complete upper and lower concrete component installation positioning operation.
Preferably, the upper support includes supporting plate and limit plate；The limit plate is vertically fixed on the end of supporting plate, with support
The L-shaped structure of plate；The supporting plate is in the fitting surface of upper concrete component, and limit plate is in the side of upper concrete component.
Preferably, the supporting plate is electromagnet.
Preferably, the supporting plate and lower support are hollow structure, the iron for being internally provided with coil and being through in coil
Core；Incoming line and line outlet are offered on the supporting plate and lower support, the input terminal and output end of the coil pass through respectively
Incoming line and line outlet are connect with external cable.
Preferably, the lower support is the electromagnet all the same with pallet shape and area.
Preferably, it is connected between the two neighboring upper support and/or two neighboring lower support by connecting rod.
Preferably, the two neighboring limit plate opposite side be arranged card slot, and, two neighboring lower support it is opposite
Side is provided with card slot, and the both ends of the connecting rod are equipped with the card key with pocket matches.
Preferably, the connecting rod is hollow structure, is walked as electric wire between two neighboring upper support and/or lower support
Wire casing.
Preferably, the connecting rod is telescopic rod.
The present invention has the advantages that
By magnetic suspension principle, the reinforcing bar fast accurate centering of upper and lower concrete component is realized, it is time saving and energy saving.Pass through string
The circuit of connection, it can be achieved that multiple groups support mechanism magnetic picture is same, stablize by guarantee support.By telescopic connecting rod, realize adjacent
Spacing locking between two upper supports or two neighboring lower support, avoids relative horizontal displacement, and pass through telescopic connection
Bar adjusts the spacing between two neighboring upper support or two neighboring lower support, and the present invention is made to be suitable for different size coagulations
Native component connection positioning.By the way that connecting rod is designed to hollow structure, it can be used as the cabling channel of electric wire, keep construction site more whole
It is clean, while guaranteeing Electrical Safety.Connecting rod is connect by clamping structure with two neighboring upper support or two neighboring lower support, just
In dismounting.
Detailed description of the invention
Fig. 1 is 1 overall structure diagram of the embodiment of the present invention；
Fig. 2 is the left and right mirror-image structure schematic diagram of upper support in the embodiment of the present invention 1；
Fig. 3 is lower support or so mirror-image structure schematic diagram in the embodiment of the present invention 1；
Fig. 4 is lower connection overlooking structure diagram between support or Tuo Ban and connecting rod in the embodiment of the present invention 1；
Fig. 5 is the overlooking structure diagram of the lower concrete component of the embodiment of the present invention 1.
Specific embodiment
The effect of to make to structure feature of the invention and being reached, has a better understanding and awareness, to preferable
Examples and drawings cooperation detailed description, is described as follows:
Embodiment 1
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, a kind of assembly concrete member reinforcing steel bar magnetic suspension connection locator,
To position upper concrete component 1 and lower concrete component 2, the non-grouting in concrete component 1 is made to connect reinforcing bar under
Grouting connection reinforcing bar in concrete component 2 is coaxial.
Positioning device includes control mechanism 6, at least two groups support mechanism 3, positioning mechanism 4；Support mechanism 3 includes lower support
31 and upper support 32；Upper support 32 includes supporting plate 321 and limit plate 322；Limit plate 322 is vertically fixed on the end of supporting plate 321,
With the L-shaped structure of supporting plate 321；Supporting plate 321 and lower support 31 are electromagnet；Positioning mechanism 4 includes in upper 1 He of concrete component
Respectively arranged first label 41 in corresponding position of lower 2 fitting surface of concrete component and the second label 42；Lower support 31 is placed on
At first label 41, upper support 32 is placed at the second label 42；Supporting plate 321 and lower support 31 are opposite with magnetic pole, to form phase
Repulsion makes support 32 suspend.
In order to guarantee that the magnetic picture between different groups of support mechanisms 3 is same, the present embodiment is by multiple supporting plates 321 and lower support 31
Internal coil is connected on same circuit；And by size of current in 6 control circuit of control mechanism, to adjust 321 He of supporting plate
The magnetic force size of lower support 31, to realize the repulsion size adjusted between supporting plate 321 and lower support 31.
Anti-skidding processing is done in 321 upper surface of supporting plate, and anti-slip layer is close to fitting surface i.e. its lower surface of upper concrete component 1, limit
Position plate 322 is in the side of upper concrete component 1.Lower support 31 is identical as 321 shape area of supporting plate.It does lower 31 lower surface of support
Anti-skidding processing, anti-slip layer are close to lower 2 fitting surface of concrete component i.e. its upper surface.Anti-slip layer can be in the upper table of supporting plate 321
Face, lower support 32 the fixed rubber layer in lower surface, also or directly in the upper surface of supporting plate 321, the following table of lower support 32
The Anti-skid structure of face pressure.It is hollow structure, the iron for being fixed with coil and being through in coil inside supporting plate 321 and lower support 31
Core；Offer incoming line 33 and line outlet 34 on supporting plate 321 and lower support 31, the input terminal and output end of coil respectively by into
Line mouth 33 and line outlet 34 connect with electric wire.In order to ensure the magnetic picture etc. of multiple groups support mechanism 3, all supporting plates 321 are under
Support 31 is all connected on same circuit.
Relative displacement, this implementation does not occur between two neighboring upper support 32 and two neighboring lower support 31 in order to ensure
Example is connected also between two neighboring upper support 32 and/or two neighboring lower support 31 by connecting rod 5.Specific structure are as follows:
In the opposite side of the limit plate 322 of two neighboring upper support 32, card slot 35, equally, two neighboring lower support 31 are set
Opposite side be also equipped with card slot 35, the both ends of connecting rod 5 be equipped with the matched card key 51 of card slot 35, card is stuck in by card key 51
In slot 35, the spacing between two neighboring upper support 32 or two neighboring lower support 31 is locked.
In order to adapt to the concrete component of different model, the present embodiment uses the connecting rod 5 of extension type, can be straight from market
It connects and purchases telescopic rod, process card key 51 at telescopic rod both ends.
The present embodiment also sets hollow structure for connecting rod 5, as two neighboring upper support 32 and/or lower support 31 it
Between electric wire cabling channel.
For the present embodiment by control mechanism 6 come control circuit size of current, control mechanism 6 can be a control handle,
On be provided with multiple current control buttons, each button corresponds to different current strength.It can be according to the prefabricated of a variety of different models
The current control button of different stage is arranged in concrete component, realizes a key control, fast accurate.
Embodiment 2
A kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method, comprising the following steps:
Step 1. makes marks: the first label 41 at least two being respectively set on the fitting surface of lower concrete component 2, upper
The second label 42 corresponding with 41 quantity of the first label and position is arranged in the side wall of concrete component 1；
The rough centering of step 2.: upper concrete component 1 is first lifted into setting position, it is thick to carry out upper and lower concrete component
Slightly centering, while support 31 and upper support 32 under being placed at the first label 41 and the second label 42 respectively, the upper support 32
On supporting plate 321 and lower support 31 be electromagnet, and staggered relatively with magnetic pole, lower support 31 and the series connection of 321 interior loop of supporting plate
On same circuit；It is connected by connecting rod 5 between two neighboring upper support 32, two neighboring lower support 31；
Step 3. precise alignment: being powered by 6 control circuit of control mechanism, and according to the model of upper concrete component 1, will
Electric current is adjusted to suitable size, and the mutual expelling force between supporting plate 321 and lower support 31 is made to be equal to upper 1 gravity of concrete component, hoist cable
In relaxed state；Simultaneously, supporting plate 321 is under magneticaction and in 31 pairs of lower support, and then completes upper concrete component 1
With lower 2 precise alignment of concrete component；
Step 4. installation: after upper 1 precise alignment of concrete component stablize after, by control mechanism 6 control size of current come
The magnetic force for adjusting supporting plate 321 and lower support 31, makes magnetic force uniform speed slow become smaller, and upper 1 gravity of concrete component is greater than 321 He of supporting plate
Mutual expelling force between lower support 31, upper concrete component 1 under gravity, fall on setting position under uniform speed slow, during which protect
It holds hoist cable and is in relaxed state, fall in concrete component 1 on the cushion block on lower concrete component 2, at this point, lower coagulation
Grouting connection reinforcing bar on native component 2 is inserted into the sleeve of upper concrete component, and with the upper 1 sleeve other end of concrete component
Non- grouting connection reinforcing bar is coaxial docking；
Step 5. is removed: extracting upper support 32 and lower support 31 of the invention out, that is, it is fixed to complete upper and lower concrete component installation
Position operation.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of assembly concrete member reinforcing steel bar magnetic suspension connects localization method, it is characterised in that: the following steps are included:
1) it makes marks: the first label (41) at least two being respectively set on the fitting surface of lower concrete component (2), in upper coagulation
The side wall setting of native component (1) the second label (42) corresponding with the first label (41) quantity and position；
2) rough centering: being first lifted into setting position for upper concrete component (1), and it is rough to carry out upper and lower concrete component (1,2)
Centering, while support (31) and upper support (32) in the case where the first label (41) and second are marked and placed respectively at (42), under described
Support (31) and upper support (32) are electromagnet, and opposite with magnetic pole, lower support (31) and the series connection of upper support (32) interior loop
On same circuit；It is connected by connecting rod (5) between two neighboring upper support (32), two neighboring lower support (31)；
3) it precise alignment: is powered by control mechanism (6) control circuit, and according to the model of upper concrete component (1), by electric current
It is adjusted to suitable size, so that the mutual expelling force between support (32) and lower support (31) is equal to upper concrete component (1) gravity, hangs
Rope is in relaxed state；Simultaneously, upper support (32) and then completes upper coagulation with lower support (31) centering under magneticaction
Native component (1) and lower concrete component (2) precise alignment；
4) it installs: after upper concrete component (1) precise alignment is stablized, controlling size of current by control mechanism (6) to adjust
The magnetic force of upper support (32) and lower support (31), makes magnetic force uniform speed slow become smaller, and upper concrete component (1) gravity is greater than upper support
(32) mutual expelling force between lower support (31), upper concrete component (1) under gravity, fall on setting position under uniform speed slow
It sets, during which hoist cable is kept to be in relaxed state, concrete component (1) is finally made to fall in the cushion block on lower concrete component (2)
On, at this point, the grouting connection reinforcing bar on lower concrete component (2) is inserted into the sleeve of upper concrete component (1), and with upper coagulation
The non-grouting connection reinforcing bar of native component (1) the sleeve other end is coaxial docking；
5) remove: the upper support (32) and lower support (31) of extraction complete upper and lower concrete component (2) installation positioning operation.
2. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 1 connects localization method, feature exists
In: the upper support (32) includes supporting plate (321) and limit plate (322)；The limit plate (322) is vertically fixed on supporting plate
(321) end, with supporting plate (321) L-shaped structure；The supporting plate (321) is in the fitting surface of upper concrete component (1), limit
Position plate (322) is in the side of upper concrete component (1).
3. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 2 connects localization method, feature exists
In: the supporting plate (321) is electromagnet.
4. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 3 connects localization method, feature exists
In: the supporting plate (321) and lower support (31) be hollow structure, the iron core for being internally provided with coil and being through in coil；
Offer incoming line (33) and line outlet (34) on the supporting plate (321) and lower support (31), the input terminal of the coil and
Output end passes through incoming line (33) respectively and line outlet (34) is connect with external cable.
5. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 3 connects localization method, feature exists
In: the lower support (31) is electromagnet identical with supporting plate (321) shape area.
6. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 2 connects localization method, feature exists
In: it is connected between the two neighboring upper support (32) and/or two neighboring lower support (31) by connecting rod (5).
7. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 6 connects localization method, feature exists
In: in the opposite side of the two neighboring limit plate (322), card slot (35) are set, and, the phase of two neighboring lower support (31)
Opposite side is provided with card slot (35), and the both ends of the connecting rod are equipped with and card slot (35) matched card key (51).
8. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 6 or 7 connects localization method, feature
Be: the connecting rod (5) is hollow structure, as electric wire between two neighboring upper support (32) and/or lower support (31)
Cabling channel.
9. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 6 or 7 connects localization method, feature
Be: the connecting rod (5) is telescopic rod.
10. a kind of assembly concrete member reinforcing steel bar magnetic suspension according to claim 2 connects localization method, feature exists
In: at least in the upper surface of the supporting plate (321), the contact surface of limit plate (322) and upper concrete component (1), lower support
(31) one of them of lower surface is provided with anti-slip layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810097123.XA CN108222285B (en) | 2018-01-31 | 2018-01-31 | A kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810097123.XA CN108222285B (en) | 2018-01-31 | 2018-01-31 | A kind of assembly concrete member reinforcing steel bar magnetic suspension connection localization method |
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| CN108222285B true CN108222285B (en) | 2019-07-23 |
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| CN109629459A (en) * | 2019-02-16 | 2019-04-16 | 刘展行 | Free cantilever erection bridge section is carried out to positive device using electromagnetic force |
| CN111515894B (en) * | 2020-04-24 | 2024-01-09 | 张继红 | Magnetic force control civil engineering fabricated component butt joint installation method and installation device |
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| TW534204U (en) * | 2002-09-30 | 2003-05-21 | Nien Made Entpr Co Ltd | Venetian blinds with shutter guises |
| DE102010046924A1 (en) * | 2010-09-29 | 2012-03-29 | Benno Drössler GmbH & Co. Bauunternehmung KG | Method and device for producing thin-walled concrete slabs |
| CN203782969U (en) * | 2014-03-20 | 2014-08-20 | 宏峰集团(福建)有限公司 | Magnetic-suspension shockproof floor steel truss |
| CN204139456U (en) * | 2014-10-15 | 2015-02-04 | 华亿生态建设有限公司 | Integration engineering plate |
| CN106968437B (en) * | 2017-04-21 | 2019-02-15 | 中国建筑第五工程局有限公司 | A kind of installation method of PC component |
| CN206829120U (en) * | 2017-05-25 | 2018-01-02 | 尹静 | It is a kind of to carry out the assembled frock of prefabricated components fast positioning using magnetic attraction |
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