CN107605177A - The construction method of efficient precast floor slab and its independent support frame - Google Patents
The construction method of efficient precast floor slab and its independent support frame Download PDFInfo
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- CN107605177A CN107605177A CN201711025174.3A CN201711025174A CN107605177A CN 107605177 A CN107605177 A CN 107605177A CN 201711025174 A CN201711025174 A CN 201711025174A CN 107605177 A CN107605177 A CN 107605177A
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- floor slab
- precast floor
- concrete
- support frame
- construction method
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 43
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 230000032258 transport Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001627 detrimental 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
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of efficiently construction method of precast floor slab and its independent support frame.The construction method comprises the following steps：Step 1, factory pour a part of concrete of precast floor slab；Step 2, transport to scene, independent support frame installs；Step 3, precast floor slab are lifted to working face；Step 4, gap is handled between precast floor slab；Step 5, the concrete of precast floor slab remainder is poured, and carry out concrete topping and receive face maintenance.The construction method of the efficient precast floor slab is using the prefabricated concrete for pouring a build floor part after factory's progress reinforcing bar colligation, after steam curing reaches design strength, the concrete of build floor remainder is poured in transport to job site, the secondary joist and form surfacing of conventional art can be omitted, simplify construction technology, installing for secondary joist and form surfacing is eliminated, the technique that also simplify support frame, improves efficiency of construction.
Description
Technical field
The present invention relates to the realm of building construction, more particularly to a kind of efficiently construction method of precast floor slab and its independent branch
Support.
Background technology
The construction technology of traditional precast floor slab is：Set up support scaffolding → in caving support → jacking at the top of support frame
→ laying form surfacing on secondary joist → is placed and lays secondary joist on main joist → main joist, primary and secondary skeletal frame forms netted to tie up
Prick floor bar → casting concrete.
I.e. conventional art relies primarily on manually, wastes time and energy.Support frame and template system constructing operation are cumbersome, installation and
Removing needs to carry out the technique repeated twice, and simply process sequence is opposite.On the other hand, floor bar needs all scenes
Colligation, artificial amount are very huge.While today's society, cost of labor rapid increase, seriously add engineering construction into
This.And the artificial colligation construction quality in scene is not easy to ensure, more relies on workmen's quality.Traditional handicraft working procedure is cumbersome
Complexity, it is more time-consuming, seriously affect construction speed.In addition, traditional handicraft needs substantial amounts of progress cast-in-place concrete work
Industry, under the serious background of contemporary haze, detrimental effect is served for green construction.
Further, prior art formwork-support system technique is cumbersome.Because of all poured in place concretes of upper strata floor,
So support body requires more strict, scaffold upright rod spacing is short, and cross bar need to will be arranged between vertical rod, whole support body is formed one
Individual entirety, meets stability requirement.Further, since poured in place concrete all is used, so must have above primary and secondary skeletal frame
Template, because concrete has mobility before solidification.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without
It should be considered as recognizing or imply that the information structure has been the existing skill well known to persons skilled in the art in any form
Art.
The content of the invention
It is an object of the invention to provide a kind of construction method of the simple and reasonable efficient precast floor slab of step and its
Independent support frame, the construction method of the efficient precast floor slab pour a build floor part using prefabricated after factory's progress reinforcing bar colligation
Concrete, steam curing reach design strength after, transport to job site and pour the concrete of build floor remainder, can
The secondary joist and form surfacing of conventional art are omitted, simplifies construction technology, eliminates installing for secondary joist and form surfacing,
The technique that also simplify support frame, improves efficiency of construction.
To achieve the above object, the invention provides a kind of construction method of efficiently precast floor slab, comprise the following steps：
Step 1, factory pour a part of concrete of precast floor slab；Step 2, transport to scene, independent support frame installs；Step
Three, precast floor slab is lifted to working face；Step 4, gap is handled between precast floor slab；Step 5, pour precast floor slab remainder
The concrete divided, and carry out concrete topping and receive face maintenance.
Preferably, in above-mentioned technical proposal, after a part of thickness concrete for pouring precast floor slab, and prefabricated building make it that
A part of assembling reinforcement of plate is exposed.
Preferably, in above-mentioned technical proposal, it is pitted skin to pour layer above a part of thickness concrete of precast floor slab.
Preferably, in above-mentioned technical proposal, gap processing includes side seam processing between precast floor slab and middle seam is handled, described
Side seam processing is using the longitudinally disposed flitch of handing-over internal corner part in precast floor slab and structural wall, and using steel nail nail within the walls,
Patch sponge strip, prevents concrete spillage on the inside of flitch；Handled for the middle seam less than 200mm using membrane module is hung, for
Middle seam more than 200mm needs to set independent support, respectively supporting module panel, secondary main joist, jacking and support body.
Present invention also offers a kind of independent support frame of the efficiently construction method of precast floor slab described above, independent branch
Support includes：Tripod, lower vertical rod, upper pright stanchion, Adjusting bolt Adjusting screw and jacking, the tripod are umbrella-shaped structure, are located in described
The bottom of lower vertical rod, sleeve structure is formed in the lower vertical rod of upper pright stanchion insertion, pin hole is offered on the upper pright stanchion, institute
The top for stating lower vertical rod offers pin strip hole, and with being adapted to the external screw thread that is spirally connected with Adjusting bolt Adjusting screw, by the first pin from
The strip hole of lower vertical rod and the pin hole of upper pright stanchion pass through, and stuck using Adjusting bolt Adjusting screw fixation, can pass through Adjusting bolt Adjusting screw
Rotation adjustment upper pright stanchion, the entire length of lower vertical rod；The jacking is fixedly installed on the top of upper pright stanchion, for placing main dragon
Bone.
Preferably, in above-mentioned technical proposal, tripod includes：Sleeve pipe, otic placode, supporting leg and connecting plate, described sleeve pipe two
It is individual, the bottom of lower vertical rod is located in by the second pin interval, the otic placode is fixed on the week side of boss of two sleeve pipes, the supporting leg
Upper end and the otic placode of upper square casing be hinged；One end of the connecting plate and the otic placode of lower square casing are hinged, the connecting plate
The lower end of the other end and supporting leg is hinged.
Compared with prior art, the present invention has the advantages that：The construction method of the efficient precast floor slab uses work
Factory carries out the prefabricated concrete for pouring a build floor part after reinforcing bar colligation, and after steam curing reaches design strength, transport is extremely constructed
The concrete of cast in situs floor remainder, the secondary joist and form surfacing of conventional art can be omitted, simplifies construction work
Skill, installing for secondary joist and form surfacing is eliminated, the technique that also simplify support frame, improves efficiency of construction.
Brief description of the drawings
Fig. 1 is the structural representation of the independent support frame of the efficient construction of precast floorslab of the present invention.
Fig. 2 is the structural representation of the hoisting beam of the efficient construction of precast floorslab of the present invention.
Fig. 3 is the structural representation of the hoisting beam use state of the efficient construction of precast floorslab of the present invention.
Fig. 4 is the structural representation for hanging membrane module use state of the efficient construction of precast floorslab of the present invention.
Fig. 5 is the structural representation of the independent support use state of the efficient construction of precast floorslab of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other
Element or other parts.
According to comprising the following steps for the construction method of the efficient precast floor slab of the specific embodiment of the invention：
Step 1, factory pour a part of concrete of precast floor slab；
Producer formulates detailed prefabricated board scheme according to the size of floor, thickness, arrangement of reinforcement in design drawing, and through design
Unit, Party A, management, unit in charge of construction are agreed to.Prefabricated concrete floor is then begun to, the colligation steel on the processing platform of factory
Muscle, and a part of thickness concrete is poured, and ensure a part of reinforcing steel bars exposed.
Wherein, layer is pitted skin above the precast floor slab, it is ensured that transports to job site and pours the mixed of build floor remainder
Solidifying soil pour combined with this part concrete it is closely knit.
For example, the thickness of slab of precast floor slab is 100mm, general factory carries out reinforcing bar colligation after-pouring 60mm thickness concrete, and
It is pitted skin to ensure that 60mm thickness position pours face, after steam curing reaches design strength, transports to job site working face, enters
The remaining 40mm thickness concrete of row pours.The reason for 60mm thickness position surface layer is pitted skin is to allow two-step pouring concrete, because
For pitted skin the reason for, can preferably form entirety.Due to being prefabricated board, so 60mm part can substitutes traditional skill
The secondary joist and form surfacing (main joist must have) of art, so so, simplifying construction technology, eliminate secondary joist
With installing for form surfacing, the technique that also simplify support frame.Construction technology is simple.Figure below is independent support frame, and top is
Main joist flitch.
Step 2, transport to scene, independent support frame installs；
As shown in figure 1, independent support frame includes：Tripod, lower vertical rod 11, upper pright stanchion 12, Adjusting bolt Adjusting screw 19 and jacking
13.Wherein, tripod is umbrella-shaped structure, including：Sleeve pipe 14, otic placode 15, supporting leg 16 and connecting plate 17, sleeve pipe 14 are two, are led to
The bottom that the first pin interval is located in lower vertical rod 11 is crossed, otic placode 15 is fixed on the week side of boss of two sleeve pipes 14, the upper end of supporting leg 16
It is be hinged with the otic placode 15 of upper square casing 14；The otic placode 15 of one end of connecting plate 17 and lower square casing 14 is be hinged, connecting plate 17 it is another
One end and the lower end of supporting leg 16 are hinged；When in use, the first pin of lower square casing 14 is extracted, lower square casing 14 can be under
The slide downward of vertical rod 11, can put down supporting leg, not used time, can be lower square casing 14 as the tripod of stable vertical rod
Pull up, tripod is received and (completes aforesaid operations using the axle of otic placode) together.
Upper pright stanchion 12 is smaller than the diameter of lower vertical rod 11, is inserted by its lower end in lower vertical rod and forms sleeve structure, upper pright stanchion
Pin hole 18 is offered on 12, the top of lower vertical rod 11 offers pin strip hole, and is spirally connected with being adapted to Adjusting bolt Adjusting screw 19
External screw thread, the second pin 20 is passed through from the strip hole of lower vertical rod and the pin hole of upper pright stanchion, and solid using Adjusting bolt Adjusting screw 19
It is fixed stuck, upper pright stanchion 12, the entire length of lower vertical rod 11 can be adjusted by the rotation of Adjusting bolt Adjusting screw 19, it is ensured that upper pright stanchion is received
To after downward load, upper pright stanchion will not fall.
Jacking 13 is fixedly installed on the top of upper pright stanchion 12, for placing main joist.
Step 3, precast floor slab are lifted to working face；
As shown in Figures 2 and 3, the lifting of precast floor slab uses hoisting beam, and the hoisting beam is mainly cut laggard using steel plate
Row is welded, including：Hanger 21, upper cross plate 22, side plate 23, header board 24, reinforcement riser 25, keel plate 26 and suspension rod 27.
Hanger 21 is arranged in pairs in the top surface of upper cross plate 22, for being used cooperatively with lifting appliance.Side plate 23 is arranged in pairs in upper cross plate
22 both sides, header board 24 are secured transverse in the middle part of biside plate by its both ends.It is multiple to strengthen riser 25, passes through its both ends
It is fixed on vertically between upper cross plate 22 and header board 24, for improving the mechanical strength of hoisting beam.Keel plate 26 to be multiple,
Every being fixed on below header board 24, suspension rod 27 is located in multiple keel plates 26, and is welded and fixed, will for wearing lifting rope
Precast floor slab is lifted to working face.
Preferably, to ensure that stress is good, upper cross plate 22 and header board 24 are whole plate (being integrally formed), and suspension rod 27 is straight
More than footpath 20mm round steel (reinforcing bar), and whole.
Step 4, gap is handled between precast floor slab；
It is support system above, precast floor slab is lifted to the main joist of independent support frame there can be two " seams ".
One is side seam, and one is middle seam.
Wherein, side seam is handled：In precast floor slab and the handing-over internal corner part of structural wall, longitudinally disposed 100*100mm2Wood
Side, and using steel nail nail within the walls, patch sponge strip, prevents concrete spillage on the inside of flitch.
Middle seam processing：1. the middle seam less than 200mm is handled using membrane module is hung, without supporting frame.
Include as shown in figure 4, this hangs membrane module：Spiral 31, screw rod 32, removable cone 33, flitch 34 and clamp
35.Wherein, spiral 31 is laterally set, a diameter of 10mm, and length is longer 100mm than pending middle seam or so.Screw rod 32 is vertical
Set, upper end and the middle part of spiral 31 are welded and fixed, and the center of removable cone 33 offers the perforation of the first screw rod, wears
At the middle part of screw rod 32.The middle part of flitch 34 offers the perforation of the second screw rod, is located on screw rod 32, and be located at removable cone
33 lower section.Clamp 35 is adapted to screw rod 32 and is spirally connected, and blocks flitch 34 from below.When pouring, screw rod 32 and flitch 34 are laid
The both sides up and down stitched in precast floor slab 36, screw rod 32 are cast in concrete, and the part that bottom is exposed on the outside needs to cut
Fall, (because screw rod is irony, it may appear that the situation of iron rust, so setting removable cone, so, cone is in concrete building
A bellmouth is formed on plate, the screw rod in hole can be also cut away, then by hole with a label higher than concrete floor
Slightly expanded concrete blocks, it is ensured that screw rod is not exposed, prevents from getting rusty).Reinforced followed by flitch and clamp, check and accept and close
Lattice after-pouring concrete, after reaching strength of mould stripping, first tear clamp open, then tear keel and removable cone open, cut reinforcing bar in bellmouth,
Finally blocked.
2. as shown in figure 5, the middle seam more than 200mm needs to set independent support, difference supporting module panel 37, secondary master
Keel 38, jacking and support body.
Step 5, the concrete of precast floor slab remainder is poured, and carry out concrete topping and receive face maintenance.
To sum up, the construction method of the efficient precast floor slab pours build floor one using prefabricated after factory's progress reinforcing bar colligation
The concrete divided, after steam curing reaches design strength, transport to job site and pour the concrete of build floor remainder, energy
The secondary joist and form surfacing of conventional art are enough omitted, construction technology is simplified, eliminates the branch of secondary joist and form surfacing
If also simplify the technique of support frame, efficiency of construction is improved.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These are retouched
State and be not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out a lot
Change and change.The purpose of selecting and describing the exemplary embodiment is that explain the certain principles and in fact of the present invention
Border is applied, so that those skilled in the art can realize and utilize a variety of exemplary embodiment party of the present invention
Case and various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of construction method of efficiently precast floor slab, it is characterised in that comprise the following steps：
Step 1, factory pour a part of concrete of precast floor slab；
Step 2, transport to scene, independent support frame installs；
Step 3, precast floor slab are lifted to working face；
Step 4, gap is handled between precast floor slab；
Step 5, the concrete of precast floor slab remainder is poured, and carry out concrete topping and receive face maintenance.
2. the construction method of efficiently precast floor slab according to claim 1, it is characterised in that pour one of precast floor slab
After dividing thickness concrete, and make it that a part of assembling reinforcement of precast floor slab is exposed.
3. the construction method of efficiently precast floor slab according to claim 2, it is characterised in that pour one of precast floor slab
It is pitted skin to divide layer above thickness concrete.
4. the construction method of efficiently precast floor slab according to claim 1, it is characterised in that gap is handled between precast floor slab
Including side seam processing and the processing of middle seam, the side seam processing is longitudinally set using the handing-over internal corner part in precast floor slab and structural wall
Flitch is put, and using steel nail nail within the walls, patch sponge strip, prevents concrete spillage on the inside of flitch；For the middle seam less than 200mm
Handled using membrane module is hung, need to set independent support for the middle seam more than 200mm, respectively supporting module panel, secondary
Main joist, jacking and support body.
5. a kind of independent support frame of the construction method of efficient precast floor slab as any one of Claims 1-4, it is special
Sign is that the independent support frame includes：Tripod, lower vertical rod, upper pright stanchion, Adjusting bolt Adjusting screw and jacking, the tripod are umbrella
Shape structure, the bottom of the lower vertical rod is located in, the upper pright stanchion, which is inserted in lower vertical rod, forms sleeve structure, on the upper pright stanchion
Pin hole is offered, the top of the lower vertical rod offers pin strip hole, and has the outer spiral shell for being adapted to and being spirally connected with Adjusting bolt Adjusting screw
Line, the first pin is passed through from the strip hole of lower vertical rod and the pin hole of upper pright stanchion, and it is stuck using Adjusting bolt Adjusting screw fixation, can
Pass through the rotation adjustment upper pright stanchion of Adjusting bolt Adjusting screw, the entire length of lower vertical rod；The jacking is fixedly installed on the top of upper pright stanchion,
For placing main joist.
6. independent support frame according to claim 5, it is characterised in that the tripod includes：Sleeve pipe, otic placode, supporting leg
And connecting plate, described sleeve pipe are two, and the bottom of lower vertical rod is located in by the second pin interval, the otic placode is fixed on two
The week side of boss of sleeve pipe, the upper end of the supporting leg and the otic placode of upper square casing are hinged；One end of the connecting plate and the ear of lower square casing
Plate is hinged, and the other end of the connecting plate and the lower end of supporting leg are hinged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711025174.3A CN107605177A (en) | 2017-10-27 | 2017-10-27 | The construction method of efficient precast floor slab and its independent support frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711025174.3A CN107605177A (en) | 2017-10-27 | 2017-10-27 | The construction method of efficient precast floor slab and its independent support frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110258581A (en) * | 2019-06-19 | 2019-09-20 | 北京城建北方集团有限公司 | A kind of foundation pit support beam structure and construction method |
| CN110255208A (en) * | 2019-06-27 | 2019-09-20 | 中国能源建设集团安徽省电力设计院有限公司 | Across the transfer station and construction method of original coal transporting trestle |
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| CN111890305A (en) * | 2020-07-22 | 2020-11-06 | 武帅龙 | Auxiliary installation device for aluminum profile |
| CN112012479A (en) * | 2020-07-20 | 2020-12-01 | 中建三局集团有限公司 | Suspended formwork system for lower layer plate of double-layer roof of horizontal warehouse and construction method |
| CN112376900A (en) * | 2020-11-24 | 2021-02-19 | 苏州拓恒建筑科技有限公司 | Combined template and auxiliary construction floor slab comprising same |
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| CN113323216A (en) * | 2021-07-06 | 2021-08-31 | 中建八局天津建设工程有限公司 | Support-free laminated slab and construction method thereof |
| CN113914639A (en) * | 2021-09-18 | 2022-01-11 | 同济大学建筑设计研究院(集团)有限公司 | Leveling device for prefabricated floor slab |
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| CN110258581B (en) * | 2019-06-19 | 2024-03-15 | 北京城建北方集团有限公司 | Foundation pit supporting beam structure and construction method |
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| CN110255208A (en) * | 2019-06-27 | 2019-09-20 | 中国能源建设集团安徽省电力设计院有限公司 | Across the transfer station and construction method of original coal transporting trestle |
| CN110255208B (en) * | 2019-06-27 | 2024-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Transfer station crossing original coal conveying trestle and construction method |
| CN111716388A (en) * | 2020-07-06 | 2020-09-29 | 河南工程学院 | An industrial robot mobile device |
| CN112012479A (en) * | 2020-07-20 | 2020-12-01 | 中建三局集团有限公司 | Suspended formwork system for lower layer plate of double-layer roof of horizontal warehouse and construction method |
| CN111890305A (en) * | 2020-07-22 | 2020-11-06 | 武帅龙 | Auxiliary installation device for aluminum profile |
| CN111890305B (en) * | 2020-07-22 | 2022-01-21 | 肇庆市高要区忠煌金属制品有限公司 | Auxiliary installation device for aluminum profile |
| CN112376900A (en) * | 2020-11-24 | 2021-02-19 | 苏州拓恒建筑科技有限公司 | Combined template and auxiliary construction floor slab comprising same |
| CN112942897A (en) * | 2021-02-02 | 2021-06-11 | 浙江工业职业技术学院 | Support device for civil engineering and operation method thereof |
| CN113323216A (en) * | 2021-07-06 | 2021-08-31 | 中建八局天津建设工程有限公司 | Support-free laminated slab and construction method thereof |
| CN113914639A (en) * | 2021-09-18 | 2022-01-11 | 同济大学建筑设计研究院(集团)有限公司 | Leveling device for prefabricated floor slab |
| CN113931484A (en) * | 2021-11-01 | 2022-01-14 | 中国建筑第五工程局有限公司 | Supporting structure for floor construction and installation |
| CN114856171A (en) * | 2022-04-20 | 2022-08-05 | 中冶建工集团有限公司 | Retractable wire releasing hole plugging formwork reinforcing device |
| CN115045425A (en) * | 2022-06-14 | 2022-09-13 | 中建二局第一建筑工程有限公司 | Novel disassembly-free composite floor slab, floor slab supporting structure and supporting structure installation method |
| CN116145944A (en) * | 2023-03-28 | 2023-05-23 | 云南建投第十建设有限公司 | Disc buckle adjustable steel support frame and its construction method |
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Application publication date: 20180119 |