CN101839042B - Novel barricade rib used for negative bending moment rib - Google Patents
Novel barricade rib used for negative bending moment rib Download PDFInfo
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- CN101839042B CN101839042B CN2010101838395A CN201010183839A CN101839042B CN 101839042 B CN101839042 B CN 101839042B CN 2010101838395 A CN2010101838395 A CN 2010101838395A CN 201010183839 A CN201010183839 A CN 201010183839A CN 101839042 B CN101839042 B CN 101839042B
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- rib
- bending moment
- negative bending
- concrete
- hook
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Abstract
The invention relates to the field of building construction, in particular to a novel barricade rib used for a negative bending moment rib, which is basically and technically characterized by consisting of a longitudinal rod, a cross rod, support legs, a hook, a rotary tube and a handle, wherein the longitudinal rod is inserted on the cross rod, the outer side of the longitudinal rod is sleeved with the rotary tube, the rotary tube can rotate freely, both ends of the cross rod are provided with the support legs, and the cross rod is provided with the handle. Compared with the currently adopted barricade rib, the invention effectively prevents the negative bending moment rib from sinking, the barricade rib can be reused, a large number of raw materials can be saved, and in the process of smearing floor concrete, because the top fur of the longitudinal rod limits the smearing elevation of the concrete, the thickness of a steel bar protective layer can be precisely controlled within preset range, the construction quality is ensured, and the concrete is molded at one step. Because secondary smoothing is not needed, a large amount of concrete material and manpower are saved.
Description
Technical field:
The present invention relates to the floor slab construction field in the major structure of construction construction industry, specifically, relate to the novel split heads muscle that a kind of negative bending moment rib is used.
Technical background:
In floor bar installation and concrete placement, negative bending moment rib makes floorslab concrete reduced by curved cross section because of trampling, and greatly reduces the floor bearing capacity.For fear of the generation of this situation, existing way is the split heads muscle of being processed by reinforcing bar to be set, the support negative bending moment rib below hogging moment.
This way has a very big drawback, and after concrete pouring was accomplished, the split heads muscle can only for good and all be stayed below the negative bending moment rib, can not reuse.Because the split heads muscle is set is a kind of technical guarantee measure of construction quality, rather than designing requirement, and thus, this way has caused the waste of great deal of steel.
Summary of the invention:
The present invention is directed to the deficiency that exists in the above-mentioned technical guarantee measure, the novel split heads muscle that provides a kind of negative bending moment rib to use, it hooks negative bending moment rib through rotating hook; Before the floorslab concrete initial set, pull hook, make it to break away from negative bending moment rib; Oppositely turn supporting leg, carry handle, can it extracted and reuse; So just avoid a large amount of steel wastes, saved construction cost greatly.
The objective of the invention is to realize like this: the novel split heads muscle that a kind of negative bending moment rib is used; It is characterized in that: be made up of vertical pole, cross bar, supporting leg, hook, tube, handle, vertical pole is plugged on the cross bar, and the vertical pole outside is with tube; Tube can rotate freely; Hook is installed on the tube, and supporting leg is equipped with at the two ends of cross bar, and handle is housed on the cross bar.
Be threaded on the hook and nut, hook is installed on the tube through two fixing holes that are fixed on the inner wall smooth on the tube.
Supporting leg is installed in the two ends of cross bar, is made up of screwed supporting leg and the nut that is complementary with it, adjusts height through the mode that in nut, turns supporting leg.
From the consideration of easy construction, the diameter of vertical pole of the present invention is designed to 14mm, and the tube wall thickness design is 1mm; Make and hook negative bending moment rib through turning nut on the hook, and cooperate the adjustment height function of four supporting legs, make that the slit between negative bending moment rib and the vertical pole is 1～2mm; After fluid concrete is accomplished; Pave floor with bricks, stones etc. dauber tool is close to the top skin operation of vertical pole, has guaranteed that the negative bending moment rib protective layer thickness is not less than 15mm, and can be not a lot of greater than 15mm.
According to the on-the-spot requirement of practice of construction, the height of cross bar of the present invention and vertical pole can be adjusted as required, reaches the requirement of construction quality.
Operating principle of the present invention is; Utilize rotatable hook can tightly hook negative bending moment rib; The characteristics that can break away from negative bending moment rib again, make the split heads muscle by big disposable quality assurance measure of reinforcing bar consumption and instrument become can be repeatedly used, quality assurance measure and instrument efficiently.
Smear when floorslab concrete pouring, pave floor with bricks, stones etc. and to accomplish the back, before the initial set, can this novel split heads muscle be put forward repeated use from concrete.
The split heads muscle that adopts at present; The present invention is guaranteeing that effectively negative bending moment rib does not sink, the split heads muscle can be reused, is saving a large amount of raw-material whiles; Smear in the process at the floorslab concrete pave floor with bricks, stones etc.,, make thickness of protection tier can accurately be controlled in the predetermined scope because vertical pole of the present invention top skin has limited concrete pave floor with bricks, stones etc. and smeared absolute altitude; Guaranteed construction quality, and made the concrete one-shot forming.Owing to do not need secondary floating, practiced thrift a large amount of concrete materials and manual work again.
Economic benefit of the present invention is very significant, because in the existing technical measures, the split heads muscle needs along the elongated layout of negative bending moment rib; The steel consumption is huge, expends 8 split heads muscle by every square metre of floor and calculates, and every square metre of floor need expend about 6.8 kilograms of steel; Owing to can not reuse, caused the lot of consumption of reinforcing bar, and the present invention is under the prerequisite that guarantees construction quality; Being reusable, can practicing thrift great deal of steel undoubtedly, is huge to the contribution of economic benefit.
Though the present invention is simple in structure, novel, design is creative; Having upgraded traditional split heads muscle fully can not reusable idea and from the job practices of following support, adopts brand-new pull-up design, is guaranteeing construction quality; Save the construction raw material greatly, when avoiding waste, also played the effect that reduces work progress; Save considerable labour cost, accelerated construction speed.
Description of drawings:
Fig. 1 is a plan view of the present invention
Fig. 2 is an A-A sectional drawing of the present invention
Fig. 3 is a B-B sectional drawing of the present invention
Fig. 4 construction layout plan of the present invention
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is further specified.
Can know by Fig. 1-3; After the floor bar installation, the present invention is placed on negative bending moment rib 7 tops, rotational hook 4 along the negative bending moment rib 7 vertical sides of stretching; Make hook 4 rotate and hook negative bending moment rib 7 around vertical pole 1 through tube 5; High through turning supporting leg 3 adjustment vertical poles 1 and cross bar 2 top leather marks, turn the nut on the hook, make hook 4 hook negative bending moment rib 7.The diameter of vertical pole of the present invention is designed to 14mm, and the tube wall thickness design is 1mm, makes and hooks negative bending moment rib through turning nut on the hook; And cooperate the adjustment height function of four supporting legs; Make that the slit between negative bending moment rib and the vertical pole is 1～2mm, after fluid concrete was accomplished, pave floor with bricks, stones etc. dauber tool was close to vertical pole 1 top skin operation; Guaranteed that the negative bending moment rib protective layer thickness is not less than 15mm, and can be not a lot of greater than 15mm.Because vertical pole 1 top leather mark height is through supporting leg 3 adjustment in advance, so floorslab concrete top mark Gao Junneng is controlled to be same numerical value, the concrete surface after the moulding is smooth, and one-shot forming, has saved the operation and the material of secondary levelling.Before concrete initial set, pull hook 4 afterbodys, make hook 4 break away from negative bending moment rib 7, then; Reverse twisting supporting leg 3, under the effect of active force between supporting leg 3 and the cross bar 2 and reaction force, supporting leg 3 upwards promotes; Because its bottom is for taper, so when supporting leg 3 liftings, the frictional resistance between it and the concrete reduces rapidly; Catch handle 6 then, the present invention is pulled out from concrete, then that concrete surface is residual hole, ditch is floating, press polish gets final product.
Claims (3)
1. novel split heads muscle that negative bending moment rib is used; It is characterized in that: be made up of vertical pole, cross bar, supporting leg, hook, tube, handle, vertical pole is plugged on the cross bar, and the vertical pole outside is with tube; Be threaded on the hook and nut; Hook is installed on the tube through two fixing holes that are fixed on the inner wall smooth on the tube, and supporting leg is equipped with at the two ends of cross bar, and handle is housed on the cross bar.
2. the novel split heads muscle that a kind of negative bending moment rib according to claim 1 is used, it is characterized in that: supporting leg is installed in the two ends of cross bar, is made up of screwed supporting leg and the nut that is complementary with it.
3. the novel split heads muscle that a kind of negative bending moment rib according to claim 1 is used is characterized in that: the diameter of vertical pole is 14mm, and the tube wall thickness is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101838395A CN101839042B (en) | 2010-05-27 | 2010-05-27 | Novel barricade rib used for negative bending moment rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101838395A CN101839042B (en) | 2010-05-27 | 2010-05-27 | Novel barricade rib used for negative bending moment rib |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101839042A CN101839042A (en) | 2010-09-22 |
| CN101839042B true CN101839042B (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101838395A Expired - Fee Related CN101839042B (en) | 2010-05-27 | 2010-05-27 | Novel barricade rib used for negative bending moment rib |
Country Status (1)
| Country | Link |
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| CN (1) | CN101839042B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469734B (en) * | 2013-09-25 | 2015-07-29 | 中铁十六局集团第三工程有限公司 | Negative bending moment bellows hole path pressure grouting construction method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982637A (en) * | 2010-11-05 | 2011-03-02 | 铁岭曙光建设集团有限公司 | Negative moment reinforcing steel bar fixing mount |
| CN102535862B (en) * | 2012-02-22 | 2014-03-12 | 中国新兴保信建设总公司 | Reusable concrete floor steel bar pre-supporting device |
| CN103422622B (en) * | 2013-09-07 | 2016-03-02 | 唐山曹妃甸二十二冶工程技术有限公司 | The steel bar horse-shaped bench that height adjustable can reuse |
| CN103470056B (en) * | 2013-09-30 | 2015-04-29 | 青岛理工大学 | Partially reusable rebar stool |
| CN106121236B (en) * | 2016-08-31 | 2018-08-31 | 山西四建集团有限公司 | Floor bar protective layer and structural elevation integrated control method |
| CN106437150A (en) * | 2016-08-31 | 2017-02-22 | 李芹 | Fixing device for preventing flotation of reinforcing steel bars in reinforced concrete |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2850569A1 (en) * | 1978-11-22 | 1980-06-04 | Moosmann Gmbh Stahlarmierungen | Prestressed concrete reinforcement stirrup unit - has transverse holders welded to vertical shanks |
| EP1760218A2 (en) * | 2005-08-29 | 2007-03-07 | Megaray, S.L. | Stirrups for the construction of rebar reinforcements for reinforced concrete beams |
| CN201679150U (en) * | 2010-05-27 | 2010-12-22 | 大连阿尔滨集团有限公司 | Novel split heads rib for negative moment rib |
-
2010
- 2010-05-27 CN CN2010101838395A patent/CN101839042B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2850569A1 (en) * | 1978-11-22 | 1980-06-04 | Moosmann Gmbh Stahlarmierungen | Prestressed concrete reinforcement stirrup unit - has transverse holders welded to vertical shanks |
| EP1760218A2 (en) * | 2005-08-29 | 2007-03-07 | Megaray, S.L. | Stirrups for the construction of rebar reinforcements for reinforced concrete beams |
| CN201679150U (en) * | 2010-05-27 | 2010-12-22 | 大连阿尔滨集团有限公司 | Novel split heads rib for negative moment rib |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469734B (en) * | 2013-09-25 | 2015-07-29 | 中铁十六局集团第三工程有限公司 | Negative bending moment bellows hole path pressure grouting construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101839042A (en) | 2010-09-22 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20180527 |