CN108868011A - A kind of turnover essence control tightening component - Google Patents
A kind of turnover essence control tightening component Download PDFInfo
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- CN108868011A CN108868011A CN201810720392.7A CN201810720392A CN108868011A CN 108868011 A CN108868011 A CN 108868011A CN 201810720392 A CN201810720392 A CN 201810720392A CN 108868011 A CN108868011 A CN 108868011A
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- welded still
- still pipe
- turnover
- tightening component
- steel
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- 230000007306 turnover Effects 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 32
- 239000012528 membrane Substances 0.000 claims description 4
- 239000004567 concrete Substances 0.000 abstract description 37
- 239000011241 protective layer Substances 0.000 abstract description 14
- 230000002787 reinforcement Effects 0.000 abstract description 14
- 210000002435 tendon Anatomy 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 238000010276 construction Methods 0.000 description 18
- 239000010410 layer Substances 0.000 description 18
- 210000003205 muscle Anatomy 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 11
- 230000035882 stress Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000004579 marble Substances 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000004243 sweat Anatomy 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
- E04C5/18—Spacers of metal or substantially of metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of turnover essence control tightening components, including welded still pipe, reinforcing bar annulus is connected at the top of the welded still pipe, the welded still pipe is equipped with vertical slot, M8 HOOK BOLTS is connected in the vertical slot, M8 nut is connected on the M8 HOOK BOLTS, the bottom of the welded still pipe is connected with steel firmware.The present invention replaces traditional protective layer cushion block and steel bar horse-shaped bench using that can have enough to meet the need general cover to reinforcement tightening component; the deformation of Bars In Poured Concrete Slab upper and lower level principal rod can not only be accurately controlled; guarantee that cast-in-situ slabs tendon protective layer thickness meets codes and standards; it more importantly can be with turnaround cycle; meet the use of different plate thickness; it is versatile; a large amount of reinforcing bars can be saved; every square meter can reduce nearly 2 yuan of cost; energy conservation and environmental protection is also accomplished while reducing cost; green building theory is complied fully with, is had no effect to structure itself, adverse consequences will not be generated safely to structure.
Description
Technical field
The present invention relates to Bars In Poured Concrete Slab technical field of construction, it particularly relates to a kind of turnover essence control tightening component.
Background technique
Thickness of protection tier is related to concrete structure safety, is related to the property such as bearing capacity, durability, fire prevention of structure
Can, it is important Testing index during structural solid is examined.《Concrete structure engineering construction quality accident specification》GB50204-2015
Annex E specifies structure position, the number of components and the method for inspection that thickness of protection tier is examined, it is specified that plate class member is longitudinal
The tolerance of steel bar stress protective layer thickness is+8, -5.
Currently, the Normal practice of construction site control cast-in-situ slabs tendon protective layer is：Board bottom muscle lower part using mortar pad,
Marble cushion block or plastic cushion support；" several " font iron brace or I-shaped steel bar horse-shaped bench are placed in plate face muscle lower part, to prop up
It supports reinforcing bar and controls the thickness of cover to reinforcement, there is many problems in actual operation for these types of technique.
Reinforcement mortar pad contact area is small, intensity is low, easily displacement, cracky under load action.《Concrete structure
With spacing of reinforcement part application technology regulation》The 4.1.3 articles regulation in JGJ/T219-2010：" cement base class spacing of reinforcement part cement
Mortar strength is not lower than 20Mpa；The concrete strength of concrete spacer should improve one than the strength grade of concrete of component
Grade, and not lower than C30." mortar pad mostly field fabrication, arbitrarily, mortar strength is generally difficult to reach requirement, stress proportion
It is easily damaged, phenomena such as causing protective layer thickness out of control, reinforcing bar caused to reveal muscle, distress in concrete.
Marble cushion block smooth surface, it is difficult to securely with reinforcing bar binding, easy glide；Marble surface and template simultaneously
Closely connected, cement slurry can not wrap marble, cause marble after demoulding exposed, influence the appearance of component；And marble pad
Block is mostly the leftover pieces of processing of stone factory, and became uneven size is different, and randomness is larger when scene uses, it is difficult to guarantee that reinforcing bar is protected
Covering thickness uniformity.
Plastic cushion no matter intensity or stability it is all very insufficient, bearing capacity is low, and concrete strength is weak at distribution；
Plastics and concrete binding power are poor, without compatibility, there is contact sweat air permeable, easily lead to member seep, influence main body
Structure safety；Plastic cushion pollutes environment when processing, decompose difficulty, do not meet low-carbon, energy-saving and environmental protection and green building theory.
The reinforcing bar iron brace or elongated split heads that plate top bars muscle uses, often because sole mass problem, construction personnel step on
Step on or the factors such as lazy weight, bracket shakiness and keep reinforcing bar sagging, cause top bars protective layer thickness excessive, cause plate has
Effect height cannot reach design requirement, cause hidden danger of quality.
The spacer of all kinds of control covers to reinforcement is disposable above, and the construction cost of consumption is very considerable,
Especially traditional steel bar horse-shaped bench production needs to consume a large amount of reinforcing bars, increases project cost, buying finished product steel bar horse-shaped bench price compared with
Height, construction input cost is about 2 yuan/m2.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of turnover essence control tightening component, can overcome
The above-mentioned deficiency of the prior art.
To realize the above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of turnover is smart to control tightening component, including welded still pipe, is connected with reinforcing bar annulus at the top of the welded still pipe, described
Welded still pipe is equipped with vertical slot, is connected with M8 HOOK BOLTS in the vertical slot, is connected with M8 spiral shell on the M8 HOOK BOLTS
Cap, the bottom of the welded still pipe are connected with steel firmware.
Further, correcting wedge and steel plate washer are equipped between the welded still pipe and M8 nut.
Further, the steel firmware is L-type.
Further, the groove width of the vertical slot is 10mm.
Further, the angle between the M8 HOOK BOLTS and horizontal plane is 45 °, welded still pipe two sides vertical slot
Upper notch line and horizontal plane between angle and lower notch line and horizontal plane between angle be 45 °.
Further, reflective membrane is posted on the reinforcing bar annulus.
Beneficial effects of the present invention：The present invention replaces traditional guarantor using that can have enough to meet the need general cover to reinforcement tightening component
Sheath cushion block and steel bar horse-shaped bench can not only accurately control the deformation of Bars In Poured Concrete Slab upper and lower level principal rod, guarantee that Bars In Poured Concrete Slab reinforcing bar is protected
Covering thickness meets codes and standards, it is often more important that the use of different plate thickness can be met with turnaround cycle, it is versatile, and it can save
About a large amount of reinforcing bars, every square meter can reduce nearly 2 yuan of cost, also accomplished energy conservation and environmental protection while reducing cost, complied fully with green
Facade lighting has no effect to structure itself, will not generate safely adverse consequences to structure.
Present invention production is simple, is available locally, and scene processing or batch production production, in-site installation is easy, support
Reliably, disassembly is quick, sturdy and durable, simplifies working procedure, improves work efficiency, can by adjusting tight fixed bolt absolute altitude
Thickness of protection tier is accurate to millimeter, it is ensured that construction precision can promote monolithic reinforced concrete structure construction quality whole
Body is promoted, and has good promotional value.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the turnover essence control tightening component described according to embodiments of the present invention；
In figure：1, reinforcing bar annulus；2, welded still pipe；3, vertical slot；4, M8 HOOK BOLTS；5, M8 nut；6, correcting wedge；7, steel
Gasket；8, steel firmware；9, iron under the muscle of plate upper layer；10, iron under plate lower layer muscle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of turnover essence control tightening component, including welded still pipe 2 according to embodiments of the present invention, institute
The top for the welded still pipe 2 stated is connected with reinforcing bar annulus 1, and the welded still pipe 2 is equipped with vertical slot 3, connects in the vertical slot 3
It is connected to M8 HOOK BOLTS 4, M8 nut 5 is connected on the M8 HOOK BOLTS 4, it is solid that the bottom of the welded still pipe 2 is connected with steel
Part 8.
In one embodiment, correcting wedge 6 and steel plate washer 7 are equipped between the welded still pipe 2 and M8 nut 5.
In one embodiment, the steel firmware is L-type.
In one embodiment, the groove width of the vertical slot 3 is 10mm.
In one embodiment, the angle between the M8 HOOK BOLTS 4 and horizontal plane is 45 °, the welded still pipe 2
The angle between angle and lower notch line and horizontal plane between the upper notch line and horizontal plane of two sides vertical slot 3 is
45°。
In one embodiment, reflective membrane is posted on the reinforcing bar annulus 1.
In order to facilitate understanding above-mentioned technical proposal of the invention, below by way of in specifically used mode to of the invention above-mentioned
Technical solution is described in detail.
A kind of turnover essence control tightening component according to the present invention, with welded still pipe 2, steel firmware 8, M8 HOOK BOLTS 4,
Nut 5, correcting wedge 6 and reinforcing bar annulus 1 combination production, component using welded still pipe 2 as Bars In Poured Concrete Slab steel bar stress supporting member,
Open vertical slot 3 as the accurate adjustment component of adjustment reinforcement location using welded still pipe 2, using be welded in the steel firmware 8 of steel pipe lower part as
The fixing piece of iron 10 under plate lower layer muscle, using pass through welded still pipe 2 M8 HOOK BOLTS 4 as iron 9 under the muscle of plate upper layer fixing piece,
To be welded in the 8 reinforcing bar annulus 1 of Ф of steel pipe top as the component of rotation disassembly tightening component.
Scene in actual use, according to Bars In Poured Concrete Slab and thickness of protection tier, utilizes 8 reinforcing bar of Ф for being welded in steel pipe lower part
Support plate bottom principal rod, the fixing piece as control panel bottom tendon protective layer；Then vertical slot 3 is opened by welded still pipe 2 and adjusts M8
4 absolute altitude of HOOK BOLTS catches on iron 9 under the muscle of plate upper layer and is located at design position, is inserted in the locking of 6 tightening nuts 5 of correcting wedge
Plate top steel bar stress position, to guarantee that plate face tendon protective layer is accurate；Before Bars In Poured Concrete Slab concrete initial set when secondary receipts face, unscrew
M8 HOOK BOLTS 4 is above mentioned through steel pipe vertical slot 3, iron 9 under the muscle of disengaging plate upper layer, utilizes the reinforcing bar of bar dowel insertion steel pipe top
Annulus 1, being rotated by 90 ° makes iron 9 under 8 disengaging plate lower layer muscle of lower part steel firmware, vertically takes out component, is used in turn after cleaning mortar,
Turnover can be repeatedly recycled, a large amount of reinforcing bar consumption is reduced, saves construction cost.
Present invention is generally applicable to the controls of 100 ~ 180mm thickness cast-in-situ slabs tendon protective layer, and the Bars In Poured Concrete Slab more than 180mm thickness can also
Meet use by lengthening steel pipe.It scene only need to be perpendicular by steel pipe according to different plate thickness, bar diameter and thickness of protection tier
HOOK BOLTS absolute altitude is adjusted to fluting, so that it is caught on plate top principal rod, then tightening nuts tightening, plate top steel bar stress can be completed
The quick essence control locking of position, simple structure are swift to operate.
The processing step constructed using turnover essence control tightening component is as follows：Make protective layer tightening component → slab muscle
Taking-up → cleaning → week next time is dismantled when binding when in-site installation → inspection of quality → Bars In Poured Concrete Slab concreting → secondary receipts face
Turn to use.
Wherein, a kind of making step of turnover essence control tightening component is as follows：
1,265mm long welded still pipe 1 is intercepted, away from steel pipe bottom 15mm（Reference structure design）1 steel firmware of place's welding, steel are solid
Part is bent using 8 reinforcing bar of Ф, L-shaped, having a size of 20*30mm, with steel pipe two-sided welding, weld seam 5mm；
2, fluting vertically being cut in steel pipe sidewall symmetry two sides, groove width 10mm can hold M8 HOOK BOLTS and freely up and down move, thus
It is common to 100 ~ 180mm difference plate thickness, vertical notch position and length computation are as follows：
Vertical load to make HOOK BOLTS bear reinforced mesh reaches good stress, takes HOOK BOLTS and horizontal plane
Angle is 45 °, i.e., the corresponding upper and lower opening line of the vertical notch in tube wall two sides and horizontal plane are at 45 °；
Assuming that minimum plate thickness h=100mm, bar diameter d=10mm, protective layer thickness c=15mm, according to plate thickness, bar diameter and guarantor
It is as follows that covering thickness establishes calculation method：
Iron lower edge is away from plate top mark rise from=10+10+15=35mm under plate top layer mesh sheet, and mouth is away from top layer mesh sheet under the lower end slot of steel pipe
Lower iron lower edge distance=（5√2+5）* 2=17mm of √, away from steel pipe bottom end distance=100-（35-17）=82mm；Under steel pipe higher-end slot
Mouth is 100-35+45=110mm away from steel pipe bottom end away from iron lower edge distance=25+3.25+17=45mm under top layer mesh sheet；
Assuming that maximum plate thickness h=180mm, other element is constant, then when to be equivalent to HOOK BOLTS position relative to plate thickness be 100mm
80mm is translated up, considers HOOK BOLTS diameter and fabrication error, the vertical slotting length of steel pipe takes 90mm, therefore steel pipe is lower
End slot is suitable for reading away from steel pipe bottom end distance=82+90=172mm；Steel pipe higher-end slot it is suitable for reading away from steel pipe bottom end distance=110+90=
200mm；
In conclusion the HOOK BOLTS position of outer wall of steel pipe can derive following formula in the section 100 ~ 180mm of plate thickness：
HOOK BOLTS low side lower edge is away from board bottom distance=h-c-2d+ (√ 2d/2+d/2) * √ 2=h-c-d+ √ 2d/2 mm
The high-end lower edge of HOOK BOLTS is away from board bottom distance=h-c-2d+ (√ 2d/2+d/2) * √ 2+（25+3.25*2）=h-c-d+√
2d/2+31.5 mm
In formula：H-plate thickness, d-upper layer steel bar stress diameter, c-thickness of protection tier；
3, prepare L=150mm M8 HOOK BOLTS 1；L=40mm M8 lengthens 1, nut, steel plate washer 1；Correcting wedge 1, in advance
First drill out the bolt hole of diameter 10mm；
4, a reinforcing bar annulus is welded on steel pipe top, and reinforcing bar annulus is bent with 8 reinforcing bar of Ф, internal diameter 40mm, uses single side with steel pipe
It welds, weld seam 5mm, posts reflective membrane on reinforcing bar annulus, cause construction personnel to pay attention to when to carry on construction work at night；
5, M8 HOOK BOLTS is passed through into welded still pipe vertical slot, correcting wedge, steel plate washer and nut, Bars In Poured Concrete Slab are successively inserted in end
Cover to reinforcement turnover essence control tightening establishment of component is completed, and can be put into scene according to different plate thickness and be used.
Again during Specific construction, the operating procedure of use is as follows：
（1）It confides a technological secret：It before tightening component is installed, first confides a technological secret to reinforcing bar work team, clearly explanation application method, tightly
Array should be can be used or quincunx is placed, ordinary priority selects rectangular array close to the node installation of steel mesh by determining component.
（2）Determine arrangement spacing：Tightening component is longitudinal to be generally 1m with lateral arrangement spacing, when the plate muscle of double-layer double-direction
For 6 ~ Φ of Ф 8, then need to encrypt arrangement, in length and breadth spacing be 600 ~ 800mm, when double-layer double-direction plate muscle be 12 or more Φ, in length and breadth
Spacing can suitably be amplified to 1200 ~ 1500mm.Determining arrangement is computed according to plate steel bar stress diameter and spacing when scene uses
Method, it then follows the principle of reliable appropriateness.
（3）Determine arrangement quantity：Scene can be calculated by floor area, and usage quantity=cast-in-place plate suqare/（Horizontal spacing * is vertical
To spacing）, when plate top, principal rod only has seat shoulder bar, cast-in-place plate suqare only calculates seat shoulder bar coverage area, and deducts beam
Area.
（4）In-site installation：Tightening component should be put when binding top layer mesh sheet after the completion of Bars In Poured Concrete Slab bottom layer of the reinforcing steel mesh sheet is bound
It sets, placing of reinforcement under bottom mesh sheet is placed on the steel firmware of steel pipe bottom end, it is perpendicular by steel pipe according to plate thickness and protective layer thickness
HOOK BOLTS absolute altitude is adjusted to fluting, the lower placing of reinforcement of top layer mesh sheet is caught on and is located at design position, tightening nuts locking
Then steel bar stress arranges and binds the upper placing of reinforcement of top layer mesh sheet.Tightening component is set to be in plumbness in installation process.
（5）Bars In Poured Concrete Slab pours：Bars In Poured Concrete Slab enters mould using commercial concrete pumping, and molding temperature is not lower than 5 DEG C, does not answer height
In 35 DEG C.Cooling measure is taken by construction at high temperature requirement when daily mean temperature reaches 30 DEG C or more, daily mean temperature continuous 5 days
Construction measure in Winter is taken when lower than 5 DEG C.6 grades or more high wind weather stop high altitude operation, and the rainy day forbids casting concrete.
Before pouring cast-in-place board concrete, live Quality Inspector reinforces situation to board bottom absolute altitude, template and scaffold, reinforcing bar is tied up
Installation quality, the placement situation progress quality inspection of tightening component are pricked, meets design and code requirement hindcasting test is received.It pours cast-in-place
When board concrete, due to stretching out cast-in-place plate face certain altitude at the top of tightening component, construction personnel is in the construction for pouring and receiving face
It should be specifically noted that not trample component or be tripped by it, and avoid directly impacting when pump concrete, also to avoid shaking when vibrating
Tamper touches component.
（6）The disassembly of accurate adjustment control：It pours and finishes in Bars In Poured Concrete Slab, dismantle tightening component before concrete initial set when secondary receipts face.
Bars In Poured Concrete Slab is received face and is divided into twice, finds absolute altitude accurately for the first time and flattens plate face, and second of receipts face is in order to guarantee that plate face essence is flat and anti-
Only contraction fissure is generated after surface moisture evaporation.Secondary receipts face from floor it is most inboard to staircase or exit passageway direction fall back into
Row, specific time are concrete initial set first few minutes.The presetting period of concrete and cement type, condensation condition, mix it is additional
The kind of agent is related with quantity, should be determined by test, and the scene concrete surface that can press...with one's finger is tack-free rigid when can leave fingerprint
Secondary receipts face can be carried out, dismantles taking-up with by tightening component when receiving face.When dismantling tightening component, HOOK BOLTS is unscrewed, is made
HOOK BOLTS is vertically slotted through steel pipe and is moved up, disengaging plate top reinforcing bar, utilizes the reinforcing bar annulus of bar dowel insertion steel pipe top, rotation
90 degree make lower rebar fixing piece be detached from reinforcement, vertically take out component, extract part concrete surface is smoothed out.
（7）It cleans spare：Need clean the surface mortar immediately after the disassembly of tightening component, components occur damaging in time more
It changes, is placed at dry and stores, in case lower layer's Bars In Poured Concrete Slab is used in turn, can repeatedly recycle turnover.
In conclusion the present invention replaces traditional protective layer cushion block using that can have enough to meet the need general cover to reinforcement tightening component
And steel bar horse-shaped bench, the deformation of Bars In Poured Concrete Slab upper and lower level principal rod can not only be accurately controlled, guarantees cast-in-situ slabs tendon protective layer thickness
Meet codes and standards, it is often more important that the use of different plate thickness can be met with turnaround cycle, it is versatile, big dimension can be saved
Muscle, every square meter can reduce nearly 2 yuan of cost, also accomplished energy conservation and environmental protection while reducing cost, complied fully with green building theory,
It has no effect to structure itself, adverse consequences will not be generated safely to structure.
Present invention production is simple, is available locally, and scene processing or batch production production, in-site installation is easy, support
Reliably, disassembly is quick, sturdy and durable, simplifies working procedure, improves work efficiency, can by adjusting tight fixed bolt absolute altitude
Thickness of protection tier is accurate to millimeter, it is ensured that construction precision can promote monolithic reinforced concrete structure construction quality whole
Body is promoted, and has good promotional value.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of turnover essence control tightening component, which is characterized in that including welded still pipe（2）, the welded still pipe（2）Top
It is connected with reinforcing bar annulus（1）, the welded still pipe（2）It is equipped with vertical slot（3）, the vertical slot（3）Inside it is connected with M8 eave tile
Bolt（4）, the M8 HOOK BOLTS（4）On be connected with M8 nut（5）, the welded still pipe（2）Bottom be connected with steel firmware
（8）.
2. a kind of turnover essence control tightening component according to claim 1, which is characterized in that the welded still pipe（2）And M8
Nut（5）Between be equipped with correcting wedge（6）And steel plate washer（7）.
3. a kind of turnover essence control tightening component according to claim 1, which is characterized in that the steel firmware is L-type.
4. a kind of turnover essence control tightening component according to claim 1, which is characterized in that the vertical slot（3）Groove width
For 10mm.
5. a kind of turnover essence control tightening component according to claim 4, which is characterized in that the M8 HOOK BOLTS（4）With
Angle between horizontal plane is 45 °, the welded still pipe（2）Two sides vertical slot（3）Upper notch line and horizontal plane between
Angle between angle and lower notch line and horizontal plane is 45 °.
6. a kind of turnover essence control tightening component according to claim 1, which is characterized in that the reinforcing bar annulus（1）On
Post reflective membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720392.7A CN108868011B (en) | 2018-07-02 | 2018-07-02 | Turnover fine control fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720392.7A CN108868011B (en) | 2018-07-02 | 2018-07-02 | Turnover fine control fastening assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868011A true CN108868011A (en) | 2018-11-23 |
| CN108868011B CN108868011B (en) | 2024-02-02 |
Family
ID=64298744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810720392.7A Active CN108868011B (en) | 2018-07-02 | 2018-07-02 | Turnover fine control fastening assembly |
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| Country | Link |
|---|---|
| CN (1) | CN108868011B (en) |
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| CN208455954U (en) * | 2018-07-02 | 2019-02-01 | 中铁十六局集团城市建设发展有限公司 | A kind of turnover essence control tightening component |
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| CN108868011B (en) | 2024-02-02 |
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