CN108071194A - A kind of cast-in-situ floor and thickness control of protection cover of rebar device and its construction technology - Google Patents
A kind of cast-in-situ floor and thickness control of protection cover of rebar device and its construction technology Download PDFInfo
- Publication number
- CN108071194A CN108071194A CN201810029882.2A CN201810029882A CN108071194A CN 108071194 A CN108071194 A CN 108071194A CN 201810029882 A CN201810029882 A CN 201810029882A CN 108071194 A CN108071194 A CN 108071194A
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- Prior art keywords
- support plate
- connector
- cast
- semi
- thickness
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 7
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 2
- 239000004579 marble Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of cast-in-situ floor and thickness control of protection cover of rebar devices, the first support plate for being mutually butted installation including several groups and the second support plate, first support plate connects into the control device of clamping reinforcing bar with the second support plate, first support plate both ends are respectively equipped with the first semi-circular recesses, second support plate both ends are respectively equipped with the second semi-circular recesses, first semi-circular recesses dock the circular hole to form clamping reinforcing bar with the second semi-circular recesses, first support plate one end is equipped with the first connector, second support plate one end is equipped with the second connector, first connector and the second connector are diagonally positioned.The control device achievees the purpose that accurate and effective controls cast-in-place plate thickness and thickness of protection tier, also helps that concrete worker vibrates to cast-in-situ floor and surface layer receives light.It operates extremely simple, had both saved man-hour manpower, and it is practical, and effect is also apparent.The invention also discloses the construction technologies of a kind of cast-in-situ floor and thickness control of protection cover of rebar device.
Description
Technical field
The invention belongs to architectural engineering industry technical field of construction, are related to a kind of cast-in-situ floor and thickness control of protection cover of rebar
Device further relates to the construction technology of a kind of cast-in-situ floor and thickness control of protection cover of rebar device.
Background technology
Construction quality has become the focus of social concerns, and whole people's quality mind is continuously improved, and construction quality is construction enterprise
The sample of industry existence.At present, there is still generally existing in the thickness of China's building construction cast-in-situ floor and cover to reinforcement
It is：Cast-in-situ floor thickness and thickness of protection tier are uneven, are difficult to control, if slab thickness and thickness of protection tier are not
It meets the requirements and directly affects the safe handling requirement of structure.The thickness control of usual floor, is by the vertical of structure floor
500mm lines are drawn on reinforcing bar, line is then elongated and control cast-in-situ floor face absolute altitude is vertically measured with ruler, so as to reach control floor
Thickness, but its method be easy to cause very big error, and especially room space is larger, can not set control point at all among it,
It is difficult to the control of large area cast-in-situ floor is accurately controlled；Its concrete floorslab steel bar stress protective layer thickness control
System, the marble wastes cushion block plum blossom point arrangement of generally use 15mm thickness, its spacing 1m, but be in coagulation the shortcomings that this way
Soil is poured in process of vibrating, and marble cushion block easily loosens, it is impossible to ensure the protective layer thickness of cast-in-situ floor steel bar stress.Separately
The protective layer of outer cast-in-situ floor additional bar is arranged by using supporting steel bar plum blossom point between control steel bar stress and additional bar
Highly, then the protective layer thickness by having controlled additional bar since elongating line method, also easily cause very big error, and operate
It is not easy.
The content of the invention
The present invention solves the above-mentioned problems of the prior art, provides a kind of cast-in-situ floor and thickness of protection tier control
Device processed replaces marble cushion block and supporting steel bar using the first support plate of flexible connection and the second support plate, while accurately has
Effect controls cast-in-place plate thickness and thickness of protection tier.
The present invention also provides the construction technology of a kind of cast-in-situ floor and thickness control of protection cover of rebar device, easy to operate,
It is convenient, greatly save manpower, man-hour.
The technical solution adopted in the present invention, a kind of cast-in-situ floor and thickness control of protection cover of rebar device, including several
Group is mutually butted the first support plate and the second support plate of installation, and first support plate connects into clamping steel with the second support plate
The control device of muscle, the first support plate both ends are respectively equipped with the first semi-circular recesses, the second support plate both ends difference
Equipped with the second semi-circular recesses, first semi-circular recesses dock the circular hole to form clamping reinforcing bar with the second semi-circular recesses,
Described first support plate one end is equipped with the first connector, and described second support plate one end is equipped with the second connector, and described
A connection piece and the second connector are diagonally positioned.
Preferably, first connector is conic-insertion-piece, is set in the second support plate with the first connector opposed end
There is the first mounting hole, first connector is inserted in the first mounting hole.
It is further preferred that second connector is conic-insertion-piece, it is opposite with the second connector in the first support plate
End is equipped with the second mounting hole, and second connector is inserted in the second mounting hole.
Still more preferably, first support plate keeps one with the second support plate height with the thickness of cast-in-situ floor
It causes.
The another technical solution that the present invention uses, the construction of a kind of cast-in-situ floor and thickness control of protection cover of rebar device
Technique comprises the following steps：
Step 1 is familiar with construction drawing and lists slab thickness and thickness of protection tier species, makes and controls of engineering plastics
Device processed, control device include several groups of the first support plates for being mutually butted installation and the second support plate, the first support plate
Highly be cast-in-situ floor thickness with the second support plate, the sectional dimension of first support plate and the second support plate for 3cm ×
1.5cm, the first support plate broadside one side are set a diameter of 1cm first semicircle recessed away from being stayed respectively at upper and lower side 1.5cm
Slot, the broadside one side of the second support plate away from staying the second semi-circular recesses for setting a diameter of 1cm, institute respectively at upper and lower side 1.5cm
State the first connection stayed above the first semi-circular recesses of one end of the first support plate at 0.5cm and set a diameter of 0.5cm, long 1.5cm
Part stays below the first semi-circular recesses of the other end at 0.5cm and sets a diameter of 0.5cm, the second mounting hole of depth 1.5cm, and described
It is stayed above the second semi-circular recesses of one end of two support plates at 0.5cm and sets a diameter of 0.5cm, the first mounting hole of depth 1.5cm, separately
The second connector for setting a diameter of 0.5cm, long 1.5cm is stayed below the second semi-circular recesses of one end at 0.5cm；
After the completion of step 2, the binding of cast-in-situ floor reinforcing bar, additional bar net first is supported with supporting steel bar, merges installation control
The first support plate and the second support plate of device, the first connector of the first support plate are inserted into the first mounting hole of the second support plate
It is interior, second support the first connector be inserted into the first support plate the second mounting hole in, make its cast-in-situ floor additional bar and
Steel bar stress is respectively clamped into and passes through in the circular hole of the control device merged, and control device arrangement is using plum blossom point mode cloth
If its spacing 1m, then takes down supporting steel bar；
Step 3, when pouring floorslab concrete, the position of the upper surface of control device is slab thickness, finds control dress
The upper surface put, if concrete surface is higher than control device upper surface, with aluminium alloy floating rule mixed higher than control device upper surface
Solidifying soil strikes off, if concrete surface is less than device upper surface, need to add concrete and be scraped to device upper surface, then with aluminium alloy floating rule
Flat, receipts face；
Step 4, after cast-in-situ floor concrete reaches design strength and form removal, to the following table of exposed control device
Face brushing cement mortar.
Compared to the prior art, the device have the advantages that：The control device sets the first support plate and second
Fagging replaces marble cushion block and supporting steel bar, and the first support plate and the second support plate height keep one with cast-in-situ floor thickness
It causes, reaches accurate and effective and control cast-in-place plate thickness purpose, also help that concrete worker vibrates to cast-in-situ floor and surface layer receives light.
First semi-circular recesses and the second semi-circular recesses are set, have both achieved the purpose that accurate and effective controls thickness of protection tier, together
When be also convenient for efficiently clamping reinforcing bar.First connector and the second connector are set so that the first support plate and the second support plate
Assembling is very convenient, and operation is extremely simple, has both saved man-hour manpower, and practical, and effect is also apparent.Disclosed by the invention one
The construction technology of kind cast-in-situ floor and thickness control of protection cover of rebar device, it is easy to operate, convenient, greatly save people
Power, man-hour.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is present invention assembling use state diagram.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Refering to Fig. 1, installation is mutually butted including several groups for a kind of cast-in-situ floor and thickness control of protection cover of rebar device
First support plate 1 and the second support plate 2,1 and second support plate 2 of the first support plate connect into the control dress of clamping reinforcing bar
It puts, by the way that the first support plate 1 and the second support plate 2 is set to replace existing marble cushion block and supporting steel bar, first support
The both ends of plate 1 are respectively equipped with the first semi-circular recesses 11, and 2 both ends of the second support plate are respectively equipped with the second semi-circular recesses
21, first semi-circular recesses 11 dock the circular hole to form clamping reinforcing bar, first support with the second semi-circular recesses 21
1 one end of plate is equipped with the first connector 3, and described second support plate, 2 one end is equipped with the second connector 4, first connector 3
It is diagonally positioned with the second connector 4.
With continued reference to Fig. 1, and simultaneously refering to Fig. 2, in order to it is quick, easily assemble the first support plate 1 and the second support plate
2, in the present embodiment, 4 preferred conic-insertion-piece of the first connector 3 and the second connector, and with first in the second support plate 2
3 opposed end of connector is equipped with the first mounting hole 5, and first connector 3 can be quickly inserted in the first mounting hole 5.
The second mounting hole 6 is equipped with 4 opposed end of the second connector in one support plate 1, second connector 4 also can be quickly inserted in
In second mounting hole 6.
In order to which accurate and effective controls cast-in-place plate thickness, the first support plate 1 and the second support plate 2 highly with cast-in-situ floor
Thickness is consistent.
In order to further cost-effective and easy to process, in the present embodiment, which uses industrial plastic
It is made, intensity is not less than its cast-in-situ floor concrete strength.
The construction technology of a kind of cast-in-situ floor and thickness control of protection cover of rebar device, according to slab thickness and bar diameter
It is required that it makes control device → cast-in-situ floor formwork erection → reinforcing bar binding of dimension and supports steel bar stress with supporting steel bar
Net and additional bar net → merging installation control device is caught in reinforcing bar and passes through hole and plum blossom point arrangement spacing 1m → take down
Supporting steel bar → casting concrete and vibrate → levelling, receipts face → template is carried out with aluminium alloy floating rule according to the upper surface of control device
Control device lower surface brushing cement mortar, specific step are comprised the following steps after dismounting：
Step 1 is familiar with construction drawing and lists slab thickness and thickness of protection tier species, makes and controls of engineering plastics
Device processed, control device include several groups of the first support plates 1 and the second support plate 2 for being mutually butted installation, the first support
1 and second support plate of plate, 2 height is cast-in-situ floor thickness, and the sectional dimension of 1 and second support plate 2 of the first support plate is
3cm × 1.5cm, the 1 broadside one side of the first support plate set the first the half of a diameter of 1cm away from being stayed respectively at upper and lower side 1.5cm
Circular groove 11, the broadside one side of the second support plate 2 away from staying the second semicircle for setting a diameter of 1cm respectively at upper and lower side 1.5cm
Connected in star 21, the first semi-circular recesses of one end 11 of first support plate 1 stay at 0.5cm set a diameter of 0.5cm, length above
The first connector 3 of 1.5cm, the first semi-circular recesses of the other end 11 are stayed at 0.5cm below sets a diameter of 0.5cm, depth 1.5cm
Second mounting hole 6, the second semi-circular recesses of one end 21 of second support plate 2 stay above at 0.5cm set a diameter of 0.5cm,
The first mounting hole 5 of deep 1.5cm, the second semi-circular recesses of the other end 21 stay at 0.5cm set a diameter of 0.5cm, long 1.5cm below
The second connector 4；
After the completion of step 2, the binding of cast-in-situ floor reinforcing bar, additional bar net first is supported with supporting steel bar, merges installation control
The first support plate 1 and the second support plate 2 of device, the first connector 3 of the first support plate 1 are inserted into the first of the second support plate 2
In mounting hole 5, the first connector 4 of the second support 2 is inserted into the second mounting hole 6 of the first support plate 1, makes its cast-in-situ floor
Additional bar and steel bar stress are respectively clamped into and pass through in the circular hole of the control device merged, and control device arrangement is using plum blossom
Point mode is laid, then its spacing 1m takes down supporting steel bar；
Step 3, when pouring floorslab concrete, the position of the upper surface of control device is slab thickness, finds control dress
The upper surface put, if concrete surface is higher than control device upper surface, with aluminium alloy floating rule mixed higher than control device upper surface
Solidifying soil strikes off, if concrete surface is less than device upper surface, need to add concrete and be scraped to device upper surface, then with aluminium alloy floating rule
Flat, receipts face；
Step 4, after cast-in-situ floor concrete reaches design strength and form removal, to exposed control
The lower surface brushing cement mortar of device.
The construction technology, it is easy to operate, convenient, greatly save manpower, man-hour.
Above-described embodiment, simply presently preferred embodiments of the present invention, not be used for limit the present invention practical range, therefore it is all with
The equivalent variations that content described in the claims in the present invention is done should all be included within scope of the invention as claimed.
Claims (5)
1. a kind of cast-in-situ floor and thickness control of protection cover of rebar device, which is characterized in that be mutually butted installation including several groups
The first support plate (1) and the second support plate (2), first support plate (1) connects into clamping reinforcing bar with the second support plate (2)
Control device, the both ends of first support plate (1) are respectively equipped with the first semi-circular recesses (11), second support plate
(2) both ends are respectively equipped with the second semi-circular recesses (21), first semi-circular recesses (11) and the second semi-circular recesses (21)
Docking forms the circular hole of clamping reinforcing bar, and described first support plate (1) one end is equipped with the first connector (3), second support
Plate (2) one end is equipped with the second connector (4), and first connector (3) and the second connector (4) are diagonally positioned.
2. a kind of cast-in-situ floor according to claim 1 and thickness control of protection cover of rebar device, which is characterized in that described
First connector (3) is conic-insertion-piece, is equipped with the first installation with the first connector (3) opposed end in the second support plate (2)
Hole (5), first connector (3) are inserted in the first mounting hole (5).
3. a kind of cast-in-situ floor according to claim 2 and thickness control of protection cover of rebar device, which is characterized in that described
Second connector (4) is conic-insertion-piece, is equipped with the second installation with the second connector (4) opposed end in the first support plate (1)
Hole (6), second connector (4) are inserted in the second mounting hole (6).
4. a kind of cast-in-situ floor according to claim 3 and thickness control of protection cover of rebar device, which is characterized in that described
First support plate (1) is consistent with thickness of the second support plate (2) height with cast-in-situ floor.
5. the construction technology of a kind of cast-in-situ floor and thickness control of protection cover of rebar device, which is characterized in that comprise the following steps：
Step 1 is familiar with construction drawing and lists slab thickness and thickness of protection tier species, and control dress is made with engineering plastics
It puts, control device includes several groups of the first support plates (1) for being mutually butted installation and the second support plate (2), the first support
Plate (1) and the second support plate (2) are highly cast-in-situ floor thickness, section of first support plate (1) and the second support plate (2)
Face size be 3cm × 1.5cm, the first support plate (1) broadside one side away from stayed respectively at upper and lower side 1.5cm set it is a diameter of
The first semi-circular recesses (11) of 1cm, the broadside one side of the second support plate (2) set diameter away from being stayed respectively at upper and lower side 1.5cm
For the second semi-circular recesses (21) of 1cm, the first semi-circular recesses of one end (11) of first support plate (1) 0.5cm above
The first connector (3) for setting a diameter of 0.5cm, long 1.5cm is stayed at place, and the first semi-circular recesses of the other end (11) are below at 0.5cm
It stays and sets a diameter of 0.5cm, the second mounting hole (6) of depth 1.5cm, the second semi-circular recesses of one end of second support plate (2)
(21) stayed above at 0.5cm and set a diameter of 0.5cm, the first mounting hole (5) of depth 1.5cm, the second semi-circular recesses of the other end
(21) the second connector (4) for setting a diameter of 0.5cm, long 1.5cm is stayed at 0.5cm below；
After the completion of step 2, the binding of cast-in-situ floor reinforcing bar, additional bar net first is supported with supporting steel bar, merges installation control device
The first support plate (1) and the second support plate (2), the first connector (3) of the first support plate (1) be inserted into the second support plate (2)
The first mounting hole (5) in, second support (2) the first connector (4) be inserted into the first support plate (1) the second mounting hole (6)
It is interior, the additional bar of its cast-in-situ floor and steel bar stress is made to be respectively clamped into and pass through in the circular hole of the control device merged, control
Device arrangement processed is laid using plum blossom point mode, then its spacing 1m takes down supporting steel bar；
Step 3, when pouring floorslab concrete, the position of the upper surface of control device is slab thickness, finds control device
Upper surface, if concrete surface is higher than control device upper surface, with aluminium alloy floating rule the concrete higher than control device upper surface
It strikes off, if concrete surface is less than device upper surface, concrete need to be added to device upper surface, then struck off, received with aluminium alloy floating rule
Face；
Step 4, after cast-in-situ floor concrete reaches design strength and form removal, the lower surface of exposed control device is applied
Swabbing mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029882.2A CN108071194A (en) | 2018-01-12 | 2018-01-12 | A kind of cast-in-situ floor and thickness control of protection cover of rebar device and its construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029882.2A CN108071194A (en) | 2018-01-12 | 2018-01-12 | A kind of cast-in-situ floor and thickness control of protection cover of rebar device and its construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071194A true CN108071194A (en) | 2018-05-25 |
Family
ID=62156748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810029882.2A Pending CN108071194A (en) | 2018-01-12 | 2018-01-12 | A kind of cast-in-situ floor and thickness control of protection cover of rebar device and its construction technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071194A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695316A (en) * | 2018-12-27 | 2019-04-30 | 天津新宇建筑工程有限公司 | Regularization cement mortar bedding block and the construction technology for controlling cast-in-situ floor thickness |
| CN110578386A (en) * | 2019-10-11 | 2019-12-17 | 河北建设集团股份有限公司 | Steel bar positioning device suitable for foundation slab and floor slab |
| CN113070232A (en) * | 2021-03-26 | 2021-07-06 | 中建二局第一建筑工程有限公司 | Assembly type steel bar distributor capable of being circulated |
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| RU2033504C1 (en) * | 1993-05-24 | 1995-04-20 | Владимир Андреевич Лобков | Sandwich building panel and method for its production |
| CN1773044A (en) * | 2004-11-14 | 2006-05-17 | 陈冠一 | Concrete protection layer spacer block for steel reinforcement |
| CN204826428U (en) * | 2015-07-31 | 2015-12-02 | 吴斌 | Novel cover to reinforcement cushion |
| CN105569274A (en) * | 2015-11-30 | 2016-05-11 | 青岛康克瑞技术咨询有限公司 | Cushion block structure of cover to reinforcement and mounting method of cushion block structure of cover to reinforcement |
| CN106049879A (en) * | 2015-04-10 | 2016-10-26 | 浙江城建建设集团有限公司 | Concrete floor slab thickness control device and construction method thereof |
| CN106481027A (en) * | 2016-12-26 | 2017-03-08 | 河南省第建筑工程集团有限责任公司 | Floor quality integrated control method and multi-functional floor quality control module used |
| CN206800375U (en) * | 2017-03-24 | 2017-12-26 | 中国二十冶集团有限公司 | Biting connecions bored concrete pile cushion block of concrete bar protective layer |
| CN207934338U (en) * | 2018-01-12 | 2018-10-02 | 宝鸡建安集团股份有限公司 | A kind of cast-in-situ floor and thickness control of protection cover of rebar device |
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2018
- 2018-01-12 CN CN201810029882.2A patent/CN108071194A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2033504C1 (en) * | 1993-05-24 | 1995-04-20 | Владимир Андреевич Лобков | Sandwich building panel and method for its production |
| CN1773044A (en) * | 2004-11-14 | 2006-05-17 | 陈冠一 | Concrete protection layer spacer block for steel reinforcement |
| CN106049879A (en) * | 2015-04-10 | 2016-10-26 | 浙江城建建设集团有限公司 | Concrete floor slab thickness control device and construction method thereof |
| CN204826428U (en) * | 2015-07-31 | 2015-12-02 | 吴斌 | Novel cover to reinforcement cushion |
| CN105569274A (en) * | 2015-11-30 | 2016-05-11 | 青岛康克瑞技术咨询有限公司 | Cushion block structure of cover to reinforcement and mounting method of cushion block structure of cover to reinforcement |
| CN106481027A (en) * | 2016-12-26 | 2017-03-08 | 河南省第建筑工程集团有限责任公司 | Floor quality integrated control method and multi-functional floor quality control module used |
| CN206800375U (en) * | 2017-03-24 | 2017-12-26 | 中国二十冶集团有限公司 | Biting connecions bored concrete pile cushion block of concrete bar protective layer |
| CN207934338U (en) * | 2018-01-12 | 2018-10-02 | 宝鸡建安集团股份有限公司 | A kind of cast-in-situ floor and thickness control of protection cover of rebar device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695316A (en) * | 2018-12-27 | 2019-04-30 | 天津新宇建筑工程有限公司 | Regularization cement mortar bedding block and the construction technology for controlling cast-in-situ floor thickness |
| CN110578386A (en) * | 2019-10-11 | 2019-12-17 | 河北建设集团股份有限公司 | Steel bar positioning device suitable for foundation slab and floor slab |
| CN113070232A (en) * | 2021-03-26 | 2021-07-06 | 中建二局第一建筑工程有限公司 | Assembly type steel bar distributor capable of being circulated |
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