CN104818853B - Method for retracement of floor slab hogging moment steel bars - Google Patents
Method for retracement of floor slab hogging moment steel bars Download PDFInfo
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- CN104818853B CN104818853B CN201410422065.5A CN201410422065A CN104818853B CN 104818853 B CN104818853 B CN 104818853B CN 201410422065 A CN201410422065 A CN 201410422065A CN 104818853 B CN104818853 B CN 104818853B
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- reinforcement
- floor
- negative reinforcement
- hook
- readjustment
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Abstract
The present invention discloses a method and a tool for retracement of floor slab hogging moment steer bars. The method herein is arranged as that: cast concrete to a floor slab; insert the tool for retracement of floor slab hogging moment steer bar into the concrete before initial setting time; tilt the tool herein and making joint connections among the rest of the floor slab hogging moment steer bars in the concrete; straighten the tool and configure the tool to erect on the floor board in a perpendicular position so that the hogging moment steel bars are retraced to the original position as designed; hold on to the perpendicular position for 10 to 30 seconds, and incline the tool to disengage the rest of the floor slab hogging moment steel bars; take out the floor slab hogging moment steel bars, thus realizing the retracement. The method and tool of the present invention can elevate the hogging moment steel bars which are in a sinking status by being trampled by means of the tool. The method and tool of the present have the characteristics of convenient handling, recycled usage of steel bars, simple structure, easy processing, and practical usage, and can improve casting quality and reduce cost.
Description
Technical field
The present invention relates to a kind of floor negative reinforcement callback method, belongs to architectural engineering construction technique field.
Background technology
Negative reinforcement：The reinforcing bar arranged for resisting hogging moment, is usually referred to as " negative muscle ", in engineering in floor coagulation
When soil is poured, part floor negative bending moment rib is trampled sinking, deformation, displacement by constructing operation personnel, makes the stress of negative reinforcement
Performance is not in full use, and thickness of protection tier does not reach code requirement；The bad control of cast-in-place concrete floor thickness
System, 2 points of the above also tend to become a difficult point in construction.
The content of the invention
The purpose of the present invention is：A kind of simple structure, practical and convenient floor negative reinforcement callback method are provided, can
Floor negative reinforcement off normal, sinking that concreting process is caused is prevented effectively from, so as to efficiently control floor hogging moment
The position of reinforcing bar and thickness of protective layer of floor slab, to overcome the deficiencies in the prior art.
Technical scheme
A kind of floor negative reinforcement callback method, first carries out concreting to floor, before concrete initial set, adopts
In floor negative reinforcement readjustment instrument insertion concrete, incline floor negative reinforcement readjustment instrument by its with concrete in
Floor negative reinforcement is connected, and the floor negative reinforcement readjustment instrument includes reinforcement rod, arranges at the top of reinforcement rod
There is the handle perpendicular to reinforcement rod, the hook perpendicular to reinforcement rod being provided with reinforcement rod bottom side, hook is mutually put down with handle
OK, it is support bar on same straight line to be provided with reinforcement rod in reinforcement rod bottom, and the hook is the straight-bar that one end is arc structure,
The length of hook for floor negative reinforcement spacing 1/2～3/4, the arc end of the hook is 1/4～1/3 arc surface, circular arc
Radius is link up with length 1/6～1/3, the height gauge that the length of the support bar is designed away from slab form with floor negative reinforcement
It is very little consistent, then floor negative reinforcement readjustment instrument is moved toward straightening and vertically stood on and cause on slab form negative reinforcement readjustment
To original design position, after continuing 10s～30s, then floor negative reinforcement readjustment tool tilt is made into which with floor hogging moment steel
Muscle departs from, and then takes out from concrete, realizes the readjustment to floor negative reinforcement.
In a kind of aforesaid floor negative reinforcement callback method, it is enclosed with reinforcement rod, hook and support bar surface
Plastic adhesive tape or skin of paint, when use can be effectively placed in this design, the floor negative reinforcement readjustment instrument is sticked by concrete.
In a kind of aforesaid floor negative reinforcement callback method, the length of the reinforcement rod is 900mm～1100mm, should
Highly design causes operator's construction station just construct, and reduces the construction intensity of operator.
In a kind of aforesaid floor negative reinforcement callback method, the hook is the straight-bar that one end is arc structure, is hung
The length of hook for floor negative reinforcement spacing 1/2～3/4, the arc end of the hook is 1/4～1/3 arc surface, and circular arc is partly
Footpath is link up with length 1/6～1/3, has both facilitated hook to move up and down between floor negative reinforcement under the size, again convenient to hang
Hook is quickly connected and disconnected from floor negative reinforcement.
In a kind of aforesaid floor negative reinforcement callback method, the length of the support bar and floor negative reinforcement away from
The height dimension of slab form design is consistent so that after floor negative reinforcement readjustment instrument is connected with floor negative reinforcement
When moving toward straightening and vertically standing on slab form, floor negative reinforcement and building slab distance between plates is controlled by supporting pole length,
So as to reach the readjustment purpose of reinforcing bar, general, in existing floor slab construction, the design of floor negative reinforcement is all in floor coagulation
In native top surface (not including concrete cover to reinforcement), therefore the support pole length is general all consistent with concrete thickness, when
When supporting pole length consistent with concrete thickness, the thickness for measuring institute's casting concrete floor that the support bar can be simple and efficient,
Through the adjustment of field management workmen, the thickness of floor can be efficiently controlled.
As a result of above-mentioned technical proposal, compared with prior art, the present invention uses this work when floorslab concrete is poured
The negative reinforcement for trampling sinking is above carried by tool, both using easy to operate, and using discarded reinforcing bar, and simple structure, make
It is convenient, it is convenient and practical, it is possible to increase the cast-in-place quality of floor, it is cost-effective.
Description of the drawings
Structural representation of the accompanying drawing 1 for the present invention；
Accompanying drawing 2 is floor negative reinforcement readjustment tool construction schematic diagram in embodiment one；
Accompanying drawing 3 is floor negative reinforcement readjustment tool construction schematic diagram in embodiment two.
Labelling in accompanying drawing for：1- reinforcement rods, 2- handles, 3- hooks, 4- support bars, 5- slab forms, 6- floor coagulations
Soil, 7- floor negative reinforcements, 8- plastic adhesive tapes, a- hook length, b- hook arc end radiuses, c- support pole length.
Specific embodiment
Below in conjunction with the accompanying drawings to further detailed description of the invention, but not as any limitation of the invention.
The embodiment of the present invention one：A kind of floor negative reinforcement callback method, first carries out concreting to floor, mixed
Before solidifying soil initial set, using in floor negative reinforcement readjustment instrument insertion concrete, floor negative reinforcement readjustment instrument is inclined
Which is allowed to be connected with the floor negative reinforcement in concrete, the floor negative reinforcement readjustment instrument includes reinforcement rod 1,
The handle 2 of reinforcement rod 1 is provided perpendicular at the top of reinforcement rod 1, is provided with perpendicular to reinforcement rod 1 in 1 bottom side of reinforcement rod
Hook 3, hook 3 are parallel to each other with handle 2, and it is support bar 4 on same straight line to be provided with reinforcement rod 1 in 1 bottom of reinforcement rod, this
Hook 3 is the straight-bar that one end is arc structure, and length a for linking up with 3 is the 1/2～3/4 of floor negative reinforcement spacing, the hook
3 arc end is 1/4～1/3 arc surface, and arc radius b is link up with length a 1/6～1/3, length c of the support bar 4 and building
Plate negative reinforcement is consistent away from the height dimension that slab form is designed, and then floor negative reinforcement readjustment instrument is moved toward straightening and is hung down
Stand on, after continuing 10s～30s, then by floor hogging moment
Reinforcing bar readjustment tool tilt makes which depart from floor negative reinforcement, then takes out from concrete, realizes to floor hogging moment
The readjustment of reinforcing bar, the in the present embodiment designed elevation apart from slab form of floor negative reinforcement and floorslab concrete thickness
Unanimously (not including the mixed earth protective layer of floor negative reinforcement).
A kind of floor negative reinforcement readjustment instrument according to needed for said method, as shown in drawings, including reinforcement rod 1,
The handle 2 of reinforcement rod 1 is provided perpendicular in 1 top side of reinforcement rod, is provided with perpendicular to reinforcement rod in 1 bottom side of reinforcement rod
1 hook 3, hook 3 are parallel to each other with handle 2 and respectively positioned at the both sides of reinforcement rod 1, are provided with and reinforcing bar in 1 bottom of reinforcement rod
Bar 1 is the support bar 4 on same straight line, is enclosed with plastic adhesive tape 8 or paint on reinforcement rod 1, hook 3 and 4 surface of support bar
Layer.
Wherein, reinforcement rod 1, handle 2 and support bar 4 are seen so that the length of reinforcement rod 1
Spend for 1000mm, 2 length 160mm of handle, the height that length c of support bar 4 and floor negative reinforcement are designed away from slab form
Consistent size (4 length of support bar and concrete thickness consistent size in the present embodiment), hook 3 is that one end is the straight of arc structure
Bar structure, may also be employed reinforcement fabrication and forms, and length a for linking up with 3 is the 1/2～3/4 of floor negative reinforcement spacing, the hook
3 arc end is 1/4～1/3 arc surface, and arc radius b is link up with length a 1/6～1/3.
Embodiments of the invention two, a kind of floor negative reinforcement callback method, first carry out concreting to floor,
Before concrete initial set, using in floor negative reinforcement readjustment instrument insertion concrete, floor negative reinforcement readjustment work is inclined
The floor negative reinforcement that tool allows in remaining concrete is connected, and then floor negative reinforcement readjustment instrument is moved toward straightening and is hung down
Stand on, after continuing 10s～30s, then by floor hogging moment
Reinforcing bar readjustment tool tilt departs from remaining floor negative reinforcement, then takes out from concrete, realizes to floor hogging moment
The readjustment of reinforcing bar, the in the present embodiment designed elevation apart from slab form of floor negative reinforcement and floorslab concrete thickness
Unanimously (not including the mixed earth protective layer of floor negative reinforcement).
A kind of floor negative reinforcement readjustment instrument according to needed for said method, as shown in drawings, including reinforcement rod 1,
The handle 2 of reinforcement rod 1 is provided perpendicular at the top of reinforcement rod 1, and handle 2 is certainly symmetrical relative to reinforcement rod 1, at 1 bottom of reinforcement rod
Portion side is provided with the hook 3 perpendicular to reinforcement rod 1, and hook 3 is parallel to each other with handle 2, is provided with and reinforcement rod in 1 bottom of reinforcement rod
1 is the support bar 4 on same straight line, on reinforcement rod 1, hook 3 and 4 surface of support bar is enclosed with plastic adhesive tape 8 or skin of paint.
Wherein, reinforcement rod 1, support bar 4 are seen so that the length of reinforcement rod 1 is
1000mm, length c of support bar 4 and floor negative reinforcement are consistent (in the present embodiment away from the height dimension that slab form is designed
4 length of support bar and concrete thickness consistent size), handle can be symmetrically welded at the top of reinforcement rod 1 using the reinforcing bar of 320mm
Portion, hook 3 are the straight-bar structures that one end is arc structure, reinforcement fabrication may also be employed and forms, and length a for linking up with 3 is born for floor
The 1/2～3/4 of moment at support spacing, the arc end of the hook 3 is 1/4～1/3 arc surface, and arc radius b is hook length a
1/6～1/3.
Claims (3)
1. a kind of floor negative reinforcement callback method, it is characterised in that：Concreting is carried out to floor first, at the beginning of concrete
Before solidifying, using in floor negative reinforcement readjustment instrument insertion concrete, incline floor negative reinforcement readjustment instrument by its with
Floor negative reinforcement in concrete is connected, and the floor negative reinforcement readjustment instrument includes reinforcement rod（1）, which is special
Levy and be：In reinforcement rod（1）Top is provided perpendicular to reinforcement rod（1）Handle（2）, in reinforcement rod（1）Bottom side is provided with
Perpendicular to reinforcement rod（1）Hook（3）, hook（3）With handle（2）It is parallel to each other, in reinforcement rod（1）Bottom is provided with and reinforcement rod
（1）For the support bar on same straight line（4）, the hook（3）It is that one end is the straight-bar of arc structure, links up with（3）Length（a）For
The 1/2～3/4 of floor negative reinforcement spacing, the hook（3）Arc end be 1/4～1/3 arc surface, arc radius（b）For
Hook length（a）1/6～1/3, the support bar（4）Length（c）The height designed away from slab form with floor negative reinforcement
Degree consistent size, then moves toward straightening floor negative reinforcement readjustment instrument vertically stand on and cause on slab form negative reinforcement
Original design position is adjusted back, after continuing 10s～30s, then it is curved which is born with floor floor negative reinforcement readjustment tool tilt
Square reinforcing bar departs from, and then takes out from concrete, realizes the readjustment to floor negative reinforcement.
2. a kind of floor negative reinforcement callback method according to claim 1, it is characterised in that：In reinforcement rod（1）, hang
Hook（3）And support bar（4）Plastic adhesive tape is enclosed with surface（8）Or skin of paint.
3. a kind of floor negative reinforcement callback method according to claim 2, it is characterised in that：The reinforcement rod（1）
Length be 900mm～1100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422065.5A CN104818853B (en) | 2014-08-26 | 2014-08-26 | Method for retracement of floor slab hogging moment steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422065.5A CN104818853B (en) | 2014-08-26 | 2014-08-26 | Method for retracement of floor slab hogging moment steel bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104818853A CN104818853A (en) | 2015-08-05 |
| CN104818853B true CN104818853B (en) | 2017-03-22 |
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ID=53729313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410422065.5A Active CN104818853B (en) | 2014-08-26 | 2014-08-26 | Method for retracement of floor slab hogging moment steel bars |
Country Status (1)
| Country | Link |
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| CN (1) | CN104818853B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100374538B1 (en) * | 2000-07-05 | 2003-03-03 | 삼성물산 주식회사 | Spacer and the method using the same |
| CN2467644Y (en) * | 2001-02-22 | 2001-12-26 | 黄铭 | Slab reinforcement limited drawbar for building construction |
| CN201268921Y (en) * | 2008-09-27 | 2009-07-08 | 中冶京唐建设有限公司 | Reinforced bar split heads |
| 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 |
| CN202969732U (en) * | 2012-12-26 | 2013-06-05 | 阎虹旭 | Positioning device of upper reinforcement protective cover of cast-in-place slab |
| CN103291000B (en) * | 2013-05-24 | 2015-10-28 | 中国华冶科工集团有限公司 | The construction method of tool type reinforcing bar support and suspension floor negative reinforcement thereof |
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2014
- 2014-08-26 CN CN201410422065.5A patent/CN104818853B/en active Active
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| Publication number | Publication date |
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| CN104818853A (en) | 2015-08-05 |
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