CN104453247A - Floor slab negative reinforcement support - Google Patents
Floor slab negative reinforcement support Download PDFInfo
- Publication number
- CN104453247A CN104453247A CN201410835300.1A CN201410835300A CN104453247A CN 104453247 A CN104453247 A CN 104453247A CN 201410835300 A CN201410835300 A CN 201410835300A CN 104453247 A CN104453247 A CN 104453247A
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- floor
- muscle
- support
- girder
- floor slab
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Abstract
The invention provides a floor slab negative reinforcement support which comprises a support body. The support body comprises a rectangular top steel frame located on the top of the support body and supporting legs used for supporting the top steel frame. The floor slab negative reinforcement support further comprises a lifting device which is fixedly connected to the top of the frame body. In the normal work process, the floor slab negative reinforcement support is arranged above a slab form, floor slab negative reinforcement is arranged on the bottom face of the top steel frame of the floor slab negative reinforcement support, and the joint of the floor slab negative reinforcement and the top steel frame is connected through a binding wire. When concrete pouring is carried out, the top face of concrete is flushed with the top face of the top steel frame. After concrete pouring is finished, the binding wire is cut off, and the floor slab negative reinforcement support is lifted out through a lifting device arranged on the support body. Due to the face that the floor negative reinforcement is arranged on the bottom face of the top steel frame of the floor slab negative reinforcement support, a protection layer is formed on the floor slab negative reinforcement, and it can be guaranteed that the thickness of the protection layer reaches the demand in the concrete pouring process.
Description
Technical field
The present invention relates to Construction Technology field, more particularly, relate to a kind of floor and bear muscle support.
Background technology
Cast in place concrete plate class A of geometric unitA for general industry and civilian construction bears muscle, quality control on construction is a difficult problem always, and floor wherein to bear muscle construction quality difference be common quality defect in engineering, wherein reason is a lot, the objective factor of existing negative muscle self present position particularity, also has the human factor of constructor.
In present engineering construction; place steel bar horse-shaped bench between reinforcing bar and template for way conventional in the current construction work of floor Fu Jin China; steel bar horse-shaped bench is used in the middle of upper and lower two-ply reinforcing bar; play fixing top plate reinforcing bar; the principle that steel bar horse-shaped bench is arranged is fixing top mat; various construction activities load can be born, guarantee that the topping of top reinforcement is in the scope of regulation and stipulation.But the spacing that reinforcing bar stirrup is arranged is general longer, and job site environment more complicated, and constructor is more, and constructor tramples the flexural deformation very easily causing floor to bear muscle, causes protective layer thickness to be processed and do not meet designing requirement.
No matter blocked up thickness of concrete cover is or excessively thin, all can have an impact to component.Protective layer thickness crosses book, can shorten the de-blunt time of reinforcing bar undoubtedly, makes reinforcing bar start ahead of time to get rusty and accelerate corrosion development speed.The main cause that rebar passivation film is destroyed is carbonized exactly.Concrete cover is by the important prerequisite of carbonization normally corrosion of steel bar.And carbonization required time is directly proportional with its thickness, at this moment the durable years of component depends primarily on concrete cover and is carbonized the required time completely.From this angle, increase thickness of concrete cover, the application life of structure can be ensured.Topping is excessively thin; crack around reinforcing bar caused by bond-slip is easy to develop into component surface; form the crack of longitudinally reinforcing bar; make cover concrete generation cleavage fracture; the intensity of reinforcing bar is caused to play one's part to the full; and the corrosion of splitting crack to reinforcing bar constitutes serious threat, this also directly affects the durability of structure.Protective layer thickness is blocked up will weaken the supporting capacity of component.Enough protective layer thickness can ensure the service life of reinforcing bar and concrete co-operation and structure, can make structure not reason disaster (fire, corrosion etc.) reach dangerous temperature that reinforcing bar softens and cause the entirety of structure to destroy.If but topping is blocked up, except easily there is larger shrinkage crack and thermal cracking in component surface, the carrying that also directly can weaken component can be, particularly to the component of some overhanging types, this kind of situation more obviously, more dangerous.
Therefore, how can ensure that in concreting process the thickness of topping reaches requirement, be current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of floor and bear muscle support, can ensure that in concreting process the thickness of topping reaches requirement.
In order to achieve the above object, the invention provides following technical scheme:
Muscle support born by a kind of floor, comprising:
Support body, described support body comprises and is positioned at the rectangular top steelframe in its top and the leg for support, top steelframe;
Lifting appliance, described lifting appliance is affixed is arranged at described support body top.
Preferably, described top steelframe comprises the two horizontal girder steels and two longitudinal girder steels that are positioned at its four limit, and four girder steels are affixed by end.
Preferably, described leg is vertically affixed is arranged in the middle part of described top steelframe bottom surface four end and described two horizontal girder steel bottom surfaces.
Preferably, described top steelframe also comprises reinforced steel beam and girder, between described reinforced steel beam and girder is fixed in the middle part of described two horizontal girder steels, and parallel in described two longitudinal girder steels.
Preferably, described lifting appliance comprises and to be fixed between described two horizontal girder steels and the lifting girder steel being parallel to described reinforced steel beam and girder and the lifting handle be arranged in the middle part of described lifting girder steel end face.
Preferably, described lifting girder steel is arranged in the middle part of the described two horizontal girder steels between described reinforced steel beam and girder and described longitudinal girder steel.
Preferably, two ends, described lifting handle bottom surface are fixed in the middle part of described lifting girder steel.
Muscle support born by floor provided by the present invention, be provided with support body and lifting appliance, in normal work, this floor is born muscle stentplacement above slab form, floor is born muscle to be arranged at this floor and to bear muscle cradle top steelframe bottom surface, floor is born muscle and is connected with tying up silk with steelframe intersection, top, during concreting, top of concrete and top steelframe end face are maintained an equal level, after concreting completes, silk will be tied up chop off, by being arranged on the lifting appliance on support body, this floor is born muscle support to propose, because floor is born muscle and is arranged at this floor and bears muscle cradle top steelframe bottom surface, layer protective layer is formed so just bear above muscle at floor, how can ensure that in concreting process the thickness of topping reaches requirement.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that muscle supporting structure schematic diagram born by floor provided by the present invention.
In upper figure: 11 is longitudinal girder steel, 12 is horizontal girder steel, and 13 is reinforced steel beam and girder, and 2 is leg, and 31 for promoting handle, and 32 for promoting girder steel.
Detailed description of the invention
The invention provides a kind of floor and bear muscle support, can ensure that in concreting process the thickness of topping reaches requirement.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 1 is that muscle supporting structure schematic diagram born by floor provided by the present invention.
Muscle support born by floor provided by the present invention, comprising:
Support body, described support body comprises and is positioned at the rectangular top steelframe in its top and the leg 2 for support, top steelframe;
Lifting appliance, described lifting appliance is affixed is arranged at described support body top.
Muscle support born by floor provided by the present invention, be provided with support body and lifting appliance, in normal work, this floor is born above muscle stentplacement and slab form, floor is born muscle to be arranged at this floor and to bear muscle cradle top steelframe bottom surface, floor is born muscle and is connected with tying up silk with steelframe intersection, top, during concreting, top of concrete and top steelframe end face are maintained an equal level, after concreting completes, silk will be tied up chop off, by being arranged on the lifting appliance on support body, this floor is born muscle support to propose, because floor is born muscle and is arranged at this floor and bears muscle cradle top steelframe bottom surface, layer protective layer is formed so just bear above muscle at floor, how can ensure that in concreting process the thickness of topping reaches requirement.
In the present invention one specific embodiment, described top steelframe comprises two horizontal girder steels 12 being positioned at its four limit and two longitudinal girder steels, 11, four girder steels are affixed by end.By the connection of four girder steels, make top steelframe orthogonal, four limits can connect negative muscle to greatest extent, and when needing support body to pull out, also relatively convenient, the change in location of negative muscle can not be had influence on.Further ensure that the thickness of topping.
In the present invention one specific embodiment, described leg 2 is vertically affixed to be arranged in the middle part of described top steelframe bottom surface four end and described two horizontal girder steel 12 bottom surfaces.Leg 2 is set in the middle part of top steelframe bottom surface four end and two horizontal girder steel 12 bottom surfaces and effectively can bears pressure, when in the process of constructor in operation, keep away and unavoidably will trample floor and bear muscle support, what leg 2 effectively can bear constructor tramples pressure, further avoid and suffer damage to top girder steel because worker personnel trample, the retaining layer thickness caused can not reach requirement.
In the present invention one specific embodiment, described top steelframe also comprises reinforced steel beam and girder 13, between described reinforced steel beam and girder 13 is fixed in the middle part of described two horizontal girder steels 12, and parallel in described two longitudinal girder steels 11.By arranging reinforced steel beam and girder 13, can further improve the stability that muscle supporting structure born by this floor, avoiding the phenomenon bearing muscle deformation of timbering because of the floor that is under pressure to occur further.
In the present invention one specific embodiment, described lifting appliance comprises and to be fixed between described two horizontal girder steels 12 and the lifting girder steel 32 being parallel to described reinforced steel beam and girder 13 and the lifting handle 31 be arranged in the middle part of described lifting girder steel 32 end face.After having built, need that floor is born muscle support and lifted out, promoted girder steel 32 so be provided with and promote handle 31, fast and effectively floor being born muscle support with regard to convenient construction personnel like this and lift out concrete.
In the present invention one specific embodiment, described lifting girder steel 32 is arranged in the middle part of the described two horizontal girder steels 12 between described reinforced steel beam and girder 13 and described longitudinal girder steel 11.Bear in the process of muscle support at lift floor; floor to be born muscle support Integratively to lift out; avoid occurring that discontinuity makes floor bear muscle support and collides negative muscle; cause the dislocation of negative muscle; arrange by evenly arranging in both sides and promote girder steel 32, can time in lifting process, it is even to be that muscle support force born by floor; avoid occurring the different situation of both sides height, further ensure that protective layer thickness reach the required standards.
In the present invention one specific embodiment, two ends, described lifting handle 31 bottom surface are fixed in the middle part of described lifting girder steel 32.Should promote girder steel 32 arrange promote handle 31 can the operation of convenient construction personnel.
In sum, muscle support born by floor disclosed in this invention, be provided with support body and lifting appliance, in normal work, this floor is born muscle stentplacement above slab form, floor is born muscle to be arranged at this floor and to bear muscle cradle top steelframe bottom surface, floor is born muscle and is connected with tying up silk with steelframe intersection, top, during concreting, top of concrete and top steelframe end face are maintained an equal level, after concreting completes, silk will be tied up chop off, by being arranged on the lifting appliance on support body, this floor is born muscle support to propose, because floor is born muscle and is arranged at this floor and bears muscle cradle top steelframe bottom surface, layer protective layer is formed so just bear above muscle at floor, this just can ensure that in concreting process the thickness of topping reaches requirement.
In practical operation, can with reference to following construction technology process:
1, according to on-the-spot needs; adopt 15mm wide; the high-quality square steel welding production identical with floor negative tendon protective layer thickness becomes a 450mm wide, the square bearer that 1500mm is long, establishes three roads to support and make support height and floor stack pile at two ends, frame face and middle part welding leg respectively in the middle of frame face.
2, floor is born muscle support and carry out on-the-spot location and installation by position shown in layout plan, be well placed rear requirement and floor born muscle support and be positioned at the floor plate born under muscle support bear the colligation of muscle each interface point tied silk and fix together with every.When floor bear muscle length longer and according to field condition arrange one floor bear muscle support can not meet the demands time, can corresponding increase by arrange, arrangement pitch and position can be determined by on-site actual situations.
3, floor is born muscle support apart from beam limit 300mm and is arranged, and the plate be often positioned at together under support support is born each interface point of muscle and all fixed with tied silk colligation.The end face that concrete surface bears muscle support according to floor when carrying out concrete construction is slightly put down, and tied silk is blocked again and takes out support, be finally closed flat by with the wood face of smearing after stand-by plate vibrator vibrates.Allocate and transport immediately after taking-up and to rinse well to appointed place and to stack neat, the phenomenons such as sealing-off or bending, distortion should have been checked whether simultaneously, be convenient to timely trimming.
Transport vehicle provided by the present invention has following advantage:
1, floor is born muscle support and can well be supported negative muscle, can not the flexural deformation because trampling, and the construction quality of floor negative tendon protective layer is guaranteed, and the integral thickness of floor is also guaranteed simultaneously.
2, floor bears muscle holder combination conveniently, simple to operation, and installation rate is fast, can accelerate concrete construction speed under the prerequisite guaranteeing construction quality, avoids occurring a large amount of concrete cover super thick and occurring the phenomenons such as flooring cracking after using.
3, floor is born muscle support and can be repeatedly used, and reduces financial cost.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a muscle support born by floor, it is characterized in that, comprising:
Support body, described support body comprises and is positioned at the rectangular top steelframe in its top and the leg (2) for support, top steelframe;
Lifting appliance, described lifting appliance is affixed is arranged at described support body top.
2. muscle support born by floor as claimed in claim 1, and it is characterized in that, described top steelframe comprises the two horizontal girder steels (12) and two longitudinal girder steels (11) that are positioned at its four limit, and four girder steels are affixed by end.
3. muscle support born by floor as claimed in claim 2, and it is characterized in that, described leg (2) is vertically affixed to be arranged in the middle part of described top steelframe bottom surface four end and described two horizontal girder steel (12) bottom surfaces.
4. muscle support born by floor as claimed in claim 3, it is characterized in that, described top steelframe also comprises reinforced steel beam and girder (13), described reinforced steel beam and girder (13) is fixed between described two horizontal girder steels (12) middle part, and parallel in described two longitudinal girder steels (11).
5. muscle support born by floor as claimed in claim 4, it is characterized in that, described lifting appliance comprises and to be fixed between described two horizontal girder steels (12) and the lifting girder steel (32) being parallel to described reinforced steel beam and girder (13) and the lifting handle (31) be arranged in the middle part of described lifting girder steel (32) end face.
6. muscle support born by floor as claimed in claim 5, it is characterized in that, described lifting girder steel (32) is arranged at described two horizontal girder steels (12) middle part between described reinforced steel beam and girder (13) and described longitudinal girder steel (11).
7. muscle support born by floor as claimed in claim 5, it is characterized in that, described lifting handle (31) two ends, bottom surface are fixed in described lifting girder steel (32) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835300.1A CN104453247A (en) | 2014-12-26 | 2014-12-26 | Floor slab negative reinforcement support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835300.1A CN104453247A (en) | 2014-12-26 | 2014-12-26 | Floor slab negative reinforcement support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104453247A true CN104453247A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410835300.1A Pending CN104453247A (en) | 2014-12-26 | 2014-12-26 | Floor slab negative reinforcement support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193614A (en) * | 2016-07-07 | 2016-12-07 | 王长彬 | The control instrument of Bars In Poured Concrete Slab and casting method |
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| US3818083A (en) * | 1968-11-04 | 1974-06-18 | Hambro Structural Systems Ltd | Building method |
| CN101570999A (en) * | 2009-03-31 | 2009-11-04 | 中建三局第一建设工程有限责任公司 | Support frame for guaranteeing thickness of protective layer of floor slab and construction method thereof |
| CN201826539U (en) * | 2010-06-23 | 2011-05-11 | 中建七局第四建筑有限公司 | Reusable support frame for steel bar construction |
| CN202090605U (en) * | 2011-05-13 | 2011-12-28 | 浙江城建建设集团有限公司 | Tool type floor evenness and floor slab negative reinforcement protecting layer control device |
| CN202194392U (en) * | 2011-08-24 | 2012-04-18 | 中国建筑第七工程局有限公司 | Floorslab thickness control device |
| CN202611112U (en) * | 2012-06-19 | 2012-12-19 | 中建三局第二建设工程有限责任公司 | Reinforcing steel bar frame body for controlling thicknesses of protective layers of plate negative reinforcements |
| CN103321432A (en) * | 2013-06-28 | 2013-09-25 | 浙江横店建筑工程有限公司 | Profile steel support for protecting upper floor rebar protecting layer |
| CN203320968U (en) * | 2013-06-14 | 2013-12-04 | 北京城建二建设工程有限公司 | Rectangular hanging split heads support |
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2014
- 2014-12-26 CN CN201410835300.1A patent/CN104453247A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818083A (en) * | 1968-11-04 | 1974-06-18 | Hambro Structural Systems Ltd | Building method |
| CN101570999A (en) * | 2009-03-31 | 2009-11-04 | 中建三局第一建设工程有限责任公司 | Support frame for guaranteeing thickness of protective layer of floor slab and construction method thereof |
| CN201826539U (en) * | 2010-06-23 | 2011-05-11 | 中建七局第四建筑有限公司 | Reusable support frame for steel bar construction |
| CN202090605U (en) * | 2011-05-13 | 2011-12-28 | 浙江城建建设集团有限公司 | Tool type floor evenness and floor slab negative reinforcement protecting layer control device |
| CN202194392U (en) * | 2011-08-24 | 2012-04-18 | 中国建筑第七工程局有限公司 | Floorslab thickness control device |
| CN202611112U (en) * | 2012-06-19 | 2012-12-19 | 中建三局第二建设工程有限责任公司 | Reinforcing steel bar frame body for controlling thicknesses of protective layers of plate negative reinforcements |
| CN203320968U (en) * | 2013-06-14 | 2013-12-04 | 北京城建二建设工程有限公司 | Rectangular hanging split heads support |
| CN103321432A (en) * | 2013-06-28 | 2013-09-25 | 浙江横店建筑工程有限公司 | Profile steel support for protecting upper floor rebar protecting layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193614A (en) * | 2016-07-07 | 2016-12-07 | 王长彬 | The control instrument of Bars In Poured Concrete Slab and casting method |
| CN106193614B (en) * | 2016-07-07 | 2018-05-25 | 王长彬 | The control instrument and casting method of Bars In Poured Concrete Slab |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |