CN109653445A - The thickness adjusting apparatus and method of cover to reinforcement - Google Patents
The thickness adjusting apparatus and method of cover to reinforcement Download PDFInfo
- Publication number
- CN109653445A CN109653445A CN201910133667.1A CN201910133667A CN109653445A CN 109653445 A CN109653445 A CN 109653445A CN 201910133667 A CN201910133667 A CN 201910133667A CN 109653445 A CN109653445 A CN 109653445A
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- China
- Prior art keywords
- stirrup
- locating piece
- template
- pair
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention discloses a kind of thickness adjusting apparatus of cover to reinforcement and method, which includes several support links (1), adjustable bushing (2), crotch connecting rod (3), adjusts screw rod (4), regulation handle (5), a pair of of locating piece (7), beam supporting rib (8) and adjusting nut (12)；Locating piece (7) bottom is equipped with external corner (71), and external corner is stuck between stirrup (10) and template (9), forms side protective layer；Beam supporting rib runs through stirrup, and stirrup is hung on beam supporting rib by beam top muscle (6), and beam supporting rib rests on locating piece, and bottom protective layer is formed between stirrup and template；Support link gang mould plate and adjustable bushing, regulation handle be located on adjustable bushing by adjusting nut and drive adjust screw rod move up and down, crotch connecting rod even adjust screw rod, stirrup be hooked on crotch connecting rod by beam top muscle and with adjusting screw rod synchronizing moving.Adjustable protective thickness degree of the present invention, makes cover to reinforcement meet construction requirement.
Description
Technical field
The present invention relates to a kind of constructing device of cover to reinforcement and method more particularly to a kind of thickness of cover to reinforcement
Regulating device and method.
Background technique
Reinforced beam is as isolated beam, or the beam-board-like superstructure integral with armoured concrete slab group, or and reinforcing bar
The integral single-layer or multi-layer frame of concrete column group applies very extensive, reinforced beam frame in building engineering construction
Frame includes stirrup, the beam top muscle being arranged at the top of stirrup and the beam lower part muscle that stirrup bottom is arranged in.
Currently, before reinforced concrete beam frame construction, Bars In Poured Concrete Slab is by template pouring molding, then by reinforced beam
Frame is lifted into template, and stirrup is vertical with Bars In Poured Concrete Slab to join, and is made to reserve between stirrup and template between the pouring of cover to reinforcement
Gap.The reinforced concrete beam frame of the prior art is controlling stirrup bottom and template in such a way that bottom pad sets spacer
Spacing, i.e., positioned at bottom cover to reinforcement thickness, if beam frame in the reinforced beam of the prior art it is larger, compared with
Weight is difficult the pad in the template of its underpart and sets spacer, and operation difficulty is big, and workpeople's assembling reinforcement is also to erect certain altitude
Afterwards, it wait bind, then concentrates and pricks on beam frame.It is all often due to spacer that the beam frame of armored concrete sinks suddenly
Intensity is not high to be easily subject to crushing, pads the factors such as the spacer deficiency set, and the reinforcing bar touch of the beam frame of armored concrete is caused
Phenomenon is easy to appear dew muscle phenomenon than more serious, after demoulding, does not meet the code requirement of construction.
In the construction technology of the prior art for the side formed between stirrup two sides and template cover to reinforcement thickness
Degree is also the same to be difficult to control.The beam steel of reinforced beam be in ambient humidity it is big in the case where, the reinforcing bar that is easy to produce rust
Phenomenon is lost, largely manually carries out return visit guarantee to need to expend, the inherent quality of concrete project construction is seriously affected, increases
Maintenance construction cost.
Summary of the invention
The purpose of the present invention is to provide a kind of thickness adjusting apparatus of cover to reinforcement and methods, and reinforcing bar can be effectively controlled
The thickness of protective layer, makes cover to reinforcement meet construction requirement.
The present invention is implemented as follows:
A kind of thickness adjusting apparatus of cover to reinforcement, including several support links, adjustable bushing, crotch connecting rod, adjusting silk
Bar, regulation handle, a pair of of locating piece, beam supporting rib and adjusting nut；The bottom of a pair of of locating piece is respectively equipped with external corner, Yi Duiding
Position block is symmetricly set on the junction of stirrup and Bars In Poured Concrete Slab, make external corner be clamped on stirrup lateral wall and template inner sidewall it
Between, side protective layer is formed between stirrup side and formwork sides；Beam supporting rib runs through stirrup upper end, and stirrup passes through beam top
Muscle is hung on beam supporting rib, and the both ends of beam supporting rib are respectively rested on a pair of of locating piece, and stirrup is made to be shelved on a pair of of locating piece
Between, and bottom protective layer is formed between stirrup bottom surface and template bottom surface；
One end of several support links is arranged in template, and the other end of several support links is concentrated and set
It sets on adjustable bushing, adjustable bushing is located at the top of template, adjusts screw rod and runs through adjustable bushing；Adjusting nut is arranged active
The top of sleeve is simultaneously socketed by screw thread in adjusting screw rod, and regulation handle is connected on adjusting nut, and regulation handle, which drives, to be adjusted
Nut rotation is saved, adjusting screw rod is enable to move up and down along adjustable bushing；One end of crotch connecting rod is connect with screw rod is adjusted, and crotch connects
The other end of bar is hook solid, and stirrup is enable to be hooked on crotch connecting rod by beam top muscle, and synchronous up and down with screw rod is adjusted
It is mobile.
The width of the external corner is 20mm.
Locating slot is respectively equipped at the top of a pair of of locating piece, beam supporting rib can be positioned by locating slot and be inlaid in one
To on locating piece.
The longitudinal section of the locating slot is the semicircular structure to match with beam supporting rib.
The locating piece is up-narrow and down-wide halfpace structure.
The adjustable bushing is equipped with several connectors, and support link is connect by connector with adjustable bushing, props up
Supporting rod is rotated around connector.
A kind of method for thickness regulation of cover to reinforcement, includes the following steps:
Step 1: support link is supported between template and adjustable bushing, and stirrup is hung through crotch connecting rod in mould by beam top muscle
In plate；
Step 2: adjusting nut is rotated by regulation handle, and drives stirrup to move up and down through crotch connecting rod by adjusting screw rod,
The height of stirrup is adjusted, that is, adjusts the thickness of bottom protective layer；
Step 3: a pair of of locating piece is placed in the junction of stirrup and Bars In Poured Concrete Slab；
Step 4: stirrup being placed in template by a pair of of locating piece, and forms side protective layer and bottom between stirrup and template
Portion's protective layer.
The step 4 include it is following step by step:
Step 4.1: stirrup being hung on a pair of of locating piece by beam supporting rib, forms bottom protective layer in the bottom of stirrup；
Step 4.2: the external corner of a pair of of locating piece is stuck between the two sides outer wall of stirrup and template two sides inner wall, in the two sides of stirrup
Side protective layer is formed between template.
The thickness of stirrup bottom and two sides protective layer can be effectively controlled in the present invention, and cover to reinforcement is made to meet construction requirement,
Phenomena such as avoiding dew muscle, so that it is guaranteed that the structural stability and durability of reinforced beam.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the thickness adjusting apparatus of cover to reinforcement of the present invention；
Fig. 2 is the side view of the locating piece of the thickness adjusting apparatus of cover to reinforcement of the present invention；
Fig. 3 is the flow chart of the method for thickness regulation of cover to reinforcement of the present invention.
In figure, 1 support link, 2 adjustable bushings, 21 connectors, 3 crotch connecting rods, 4 adjust screw rods, 5 regulation handles, on 6 beams
Portion's muscle, 7 locating pieces, 71 external corners, 72 locating slots, 8 beam supporting ribs, 9 templates, 10 stirrups, 11 Bars In Poured Concrete Slabs, 12 adjusting nuts.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Refer to attached drawing 1, a kind of thickness adjusting apparatus of cover to reinforcement, including several support links 1, adjustable bushings
2, crotch connecting rod 3, adjusting screw rod 4, regulation handle 5, a pair of of locating piece 7, beam supporting rib 8 and adjusting nut 12；A pair of of locating piece 7
Bottom be respectively equipped with external corner 71, a pair of of locating piece 7 is symmetricly set on the junction of stirrup 10 Yu Bars In Poured Concrete Slab 11,71 clamping of external corner
Between the lateral wall of stirrup 10 and the inner sidewall of template 9, side protection is formed between 10 side of stirrup and 9 side of template
Layer, can play preferable positioning action, ensure that the protective layer thickness of 10 two sides of stirrup.Preferably, the width of external corner 71 is
20mm, then the cover to reinforcement of two sides with a thickness of 20mm, the thickness for changing the width adjusting side protective layer of external corner 71 can be passed through
Degree；Beam supporting rib 8 runs through the upper end of stirrup 10, and stirrup 10 is hung on beam supporting rib 8 by beam top muscle 6, and the two of beam supporting rib 8
End is respectively rested on a pair of of locating piece 7, is shelved on stirrup 10 between a pair of of locating piece, and in 10 bottom surface of stirrup and template 9
Bottom protective layer is formed between bottom surface.
One end of several support links 1 is arranged in template 9, the other end of several support links 1
It concentrates and is arranged on adjustable bushing 2, adjustable bushing 2 is located at the top of template 9, adjusts screw rod 4 and runs through adjustable bushing 2；It adjusts
Nut 12 is arranged in the top of adjustable bushing 2 and by the upper socket of screw thread and adjusting screw rod 4, and regulation handle 5 is connected to tune
It saves on nut 12, regulation handle 5 drives adjusting nut 12 to rotate, and since the support of adjusting nut 12 is located on adjustable bushing 2, adjusts
Section nut 12 circumferentially rotates the longitudinal movement for being converted to by screw-driven and adjusting screw rod 4, enables to adjust screw rod 4 along active set
Cylinder 2 moves up and down, it may be assumed that when rotation adjusting nut 12, adjusts screw rod 4 by screw thread and realizes rising, to drive the stirrup of lower section
10 are adjusted up；When rotating adjusting nut 12, adjust screw rod 4 by screw thread and realize decline, thus the stirrup 10 below driving to
Lower adjusting.In 12 rotation process of adjusting nut, due to adjusting the gravity of screw rod 4 and stirrup 10, adjusting nut 12 is made to begin
It is shelved on adjustable bushing 2 eventually, and keeps the stability of adjusting nut 12 and adjustable bushing 2 by support link 1, to make to bind round
Muscle 10 is able to achieve stable up and down adjustment.One end of crotch connecting rod 3 is fixedly welded with screw rod 4 is adjusted, the other end of crotch connecting rod 3
For hook solid, stirrup 10 is enable to be hooked on crotch connecting rod 3 by beam top muscle 6, and with adjust about 4 synchronizing moving of screw rod,
To adjust the thickness of 10 bottom protective layer of stirrup.
Attached drawing 2 is referred to, the top of a pair of of locating piece 7 is respectively equipped with locating slot 72, and beam supporting rib 8 can be by fixed
The position positioning of slot 72 is inlaid on a pair of of locating piece 7, it is preferred that the section of locating slot 72 is the semicircle to match with beam supporting rib 8
Shape, can matching beam supporting rib 8 shape, locating slot 72 is arranged and run through along the length direction of Bars In Poured Concrete Slab 11 locating piece 7, make beam branch
Support muscle 8 can pass through locating slot 72 and position, it is ensured that stability that beam supporting rib 8 is shelved and will not shake.
The adjustable bushing 2 is equipped with several connectors 21, and support link 1 passes through connector 21 and adjustable bushing 2
Connection, support link 1 is rotated around connector 21, convenient for the rotation of the support link 1 in lifting process.
Preferably, 3 formation A-frames of support links 1 can be used to be supported between template 9 and adjustable bushing 2, it is such as attached
Shown in Fig. 1, the stability of strutting system of support link 1 is high；A pair of of locating piece 7 is arranged according to the size of stirrup 10 and Bars In Poured Concrete Slab 11, can
It is spaced 1.5m distance setting, up-narrow and down-wide halfpace structure can be used in locating piece 7, and the size of locating piece 7 can be according to construction needs
Setting, the upper bottom width of locating piece 7 are 80-100mm, and the bottom width of locating piece 7 is 144-150mm；Stirrup 10 is passed through one
Locating piece 7 is located in template 9, the two sides of stirrup 10 are positioned by external corner 71, it is ensured that the thickness of the side protective layer of two sides
About 20mm meets construction requirement；The diameter of locating slot 72 is suitable with the diameter of beam supporting rib 8, about 28mm, makes stirrup 10
Top is shelved between a pair of of locating piece 7 by beam supporting rib 8 along locating slot 72, keeps the bottom of stirrup 10 hanging, it is ensured that bottom
Protective layer meets construction requirement；If the thickness of bottom protective layer is unable to satisfy construction requirement, it can be driven and be adjusted by regulation handle 5
Screw rod 4 rotates, and adjusts by screw thread turn between screw rod 4 and adjustable bushing 2, and controllable adjustable screw rod 4 moves up and down, thus
It drives stirrup 10 to move up and down by crotch connecting rod 3, the thickness of bottom protective layer is made to be maintained at 20-25mm.Adjusting screw rod 4 can adopt
With M32 screw rod.
Attached drawing 3 is referred to, a kind of method for thickness regulation of cover to reinforcement includes the following steps:
Step 1: support link 1 is supported between template 9 and adjustable bushing 2, and stirrup 10 is by beam top muscle 6 through crotch connecting rod 3
Hanging is in template 9.
Step 2: adjusting nut 12 being rotated by regulation handle 5, and drives stirrup through crotch connecting rod 3 by adjusting screw rod 4
10 move up and down, and adjust the height of stirrup 10, that is, adjust the thickness of bottom protective layer.When rotating clockwise adjusting nut 12, adjust
It saves screw rod 4 and is realized by screw thread and risen, so that stirrup 10 be driven to be adjusted up；When rotating counterclockwise adjusting nut 12, silk is adjusted
Bar 4 is realized by screw thread to be declined, so that stirrup 10 be driven to adjust downwards；In the rotation process of adjusting nut 12, due to stirrup
10 gravity is shelved on adjusting nut 12 always on adjustable bushing 2, keeps 12 He of adjusting nut by support link 1
The stability of adjustable bushing 2 reaches the mesh of bottom protective layer thickness control so that stirrup 10 be made to be able to achieve stable up and down adjustment
, the thickness of bottom protective layer can be adjusted according to construction demand, generally 20-25mm.
Step 3: a pair of of locating piece 7 is placed in the junction of stirrup 10 Yu Bars In Poured Concrete Slab 11.
Step 4: stirrup 10 being passed through into a pair of of locating piece 7 and is placed in template 9, and is formed and is closed between stirrup 10 and template 9
The side protective layer and bottom protective layer of suitable thickness, pour operation convenient for the later period.
Step 4.1: stirrup 10 being hung on a pair of of locating piece 7 by beam supporting rib 8, forms bottom in the bottom of stirrup 10
Portion's protective layer, it is preferred that bottom protective layer with a thickness of 20-25mm.
Step 4.2: the external corner 71 of a pair of of locating piece 7 is stuck between the 9 two sides inner wall of two sides outer wall and template of stirrup 10,
Side protective layer is formed between the two sides and template 9 of stirrup 10, the thickness of side protective layer is determined by the width of external corner 71, generally
For 20mm, it is able to satisfy construction demand.
It is dismountable for adjusting 10 height of stirrup after stirrup 10 adjusts in place and passes through the stable support of a pair of of locating piece 7
Support link 1, crotch connecting rod 3, adjusts the components such as screw rod 4, regulation handle 5 and adjusting nut 12 at adjustable bushing 2, is convenient for the later period
It pours.
The above is merely preferred embodiments of the present invention, it is not intended to limit the protection scope of invention, it is therefore, all at this
Any modification, equivalent replacement, improvement and so within the spirit and principle of invention, should be included in protection model of the invention
Within enclosing.
Claims (8)
1. a kind of thickness adjusting apparatus of cover to reinforcement, it is characterized in that: including several support links (1), adjustable bushings
(2), crotch connecting rod (3), adjusting screw rod (4), regulation handle (5), a pair of of locating piece (7), beam supporting rib (8) and adjusting nut
(12)；The bottom of a pair of of locating piece (7) is respectively equipped with external corner (71), and a pair of of locating piece (7) is symmetricly set on stirrup (10) and existing
The junction for pouring plate (11) is clamped on external corner (71) between the lateral wall of stirrup (10) and the inner sidewall of template (9), in stirrup
(10) side protective layer is formed between side and template (9) side；Beam supporting rib (8) runs through stirrup (10) upper end, stirrup (10)
It being hung on beam supporting rib (8) by beam top muscle (6), the both ends of beam supporting rib (8) are respectively rested on a pair of of locating piece (7),
It is shelved on stirrup (10) between a pair of of locating piece (7), and forms bottom between stirrup (10) bottom surface and template (9) bottom surface and protect
Sheath；
One end of several support links (1) is arranged on template (9), several support links (1) it is another
End is concentrated and is arranged on adjustable bushing (2), and adjustable bushing (2) is located at the top of template (9), adjusts screw rod (4) through active
Sleeve (2)；Adjusting nut (12) is arranged the top in adjustable bushing (2) and is socketed by screw thread and adjusting screw rod (4), adjusts handle
Hand (5) is connected on adjusting nut (12), and regulation handle (5) drives adjusting nut (12) rotation, makes adjusting screw rod (4) can be along work
Network sleeve (2) moves up and down；One end of crotch connecting rod (3) is connect with screw rod (4) are adjusted, and the other end of crotch connecting rod (3) is curved
It is hook-shaped, be hooked on stirrup (10) can on crotch connecting rod (3) by beam top muscle (6), and with adjust screw rod (4) synchronous shifting up and down
It is dynamic.
2. the thickness adjusting apparatus of cover to reinforcement according to claim 1, it is characterized in that: the width of the external corner (71)
Degree is 20mm.
3. the thickness adjusting apparatus of cover to reinforcement according to claim 1, it is characterized in that: a pair of of locating piece
(7) it is respectively equipped at the top of locating slot (72), beam supporting rib (8) can be inlaid in a pair of of locating piece by locating slot (72) positioning
(7) on.
4. the thickness adjusting apparatus of cover to reinforcement according to claim 3, it is characterized in that: the locating slot (72)
Longitudinal section is the semicircular structure to match with beam supporting rib (8).
5. the thickness adjusting apparatus of cover to reinforcement according to claim 1, it is characterized in that: the locating piece (7) is
Up-narrow and down-wide halfpace structure.
6. the thickness adjusting apparatus of cover to reinforcement according to claim 1, it is characterized in that: the adjustable bushing (2)
Several connectors (21) are equipped with, support link (1) is connect by connector (21) with adjustable bushing (2), support link (1)
It is rotated around connector (21).
7. a kind of adjusting method of the thickness adjusting apparatus using cover to reinforcement described in claim 1, it is characterized in that: including
Following steps:
Step 1: support link (1) is supported between template (9) and adjustable bushing (2), and stirrup (10) is passed through by beam top muscle (6)
Crotch connecting rod (3) hanging is in template (9)；
Step 2: rotating adjusting nut (12) by regulation handle (5), and driven by adjusting screw rod (4) through crotch connecting rod (3)
Stirrup (10) moves up and down, and adjusts the height of stirrup (10), that is, adjusts the thickness of bottom protective layer；
Step 3: a pair of of locating piece (7) is placed in the junction of stirrup (10) Yu Bars In Poured Concrete Slab (11)；
Step 4: stirrup (10) being passed through into a pair of of locating piece (7) and are placed in template (9), and between stirrup (10) and template (9)
Form side protective layer and bottom protective layer.
8. the method for thickness regulation of cover to reinforcement according to claim 7, it is characterized in that: the step 4 further includes
Below step by step:
Step 4.1: stirrup (10) is hung on a pair of of locating piece (7) by beam supporting rib (8), is formed in the bottom of stirrup (10)
Bottom protective layer；
Step 4.2: the external corner (71) of a pair of of locating piece (7) be stuck in stirrup (10) two sides outer wall and template (9) two sides inner wall it
Between, side protective layer is formed between the two sides and template (9) of stirrup (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910133667.1A CN109653445B (en) | 2019-02-22 | 2019-02-22 | Thickness adjusting device and method for steel bar protection layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910133667.1A CN109653445B (en) | 2019-02-22 | 2019-02-22 | Thickness adjusting device and method for steel bar protection layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109653445A true CN109653445A (en) | 2019-04-19 |
| CN109653445B CN109653445B (en) | 2021-01-12 |
Family
ID=66122971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910133667.1A Expired - Fee Related CN109653445B (en) | 2019-02-22 | 2019-02-22 | Thickness adjusting device and method for steel bar protection layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109653445B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111391113A (en) * | 2020-03-24 | 2020-07-10 | 石家庄铁源工程咨询有限公司 | Steel bar protection layer thickness adjusting device and high-speed railway sleeper concrete placement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1267474A (en) * | 1969-04-11 | 1972-03-22 | Baustahlgewebe Gmbh | Improvements in or relating to concrete beams incorporating stirrup reinforcements |
| US20090277123A1 (en) * | 2008-05-07 | 2009-11-12 | Marco Guazzo | Connector for the connection between a metal element and an element made of concrete |
| CN102587661A (en) * | 2012-03-22 | 2012-07-18 | 广东中城建设集团有限公司 | Method for constructing tall-section structural column of reinforced concrete frame |
| CN103089010A (en) * | 2013-01-15 | 2013-05-08 | 中冶天工上海十三冶建设有限公司 | Cradle construction device replacing reinforced concrete beam bottom protection layer and cradle construction method |
| CN203049922U (en) * | 2012-12-31 | 2013-07-10 | 新乡职业技术学院 | Slab reinforcement positioning device |
| CN103422622A (en) * | 2013-09-07 | 2013-12-04 | 唐山曹妃甸二十二冶工程技术有限公司 | Height-adjustable recyclable reinforcing steel bar split heads |
| CN206070881U (en) * | 2016-09-12 | 2017-04-05 | 中国建筑一局(集团)有限公司 | The beam bottom bar construction of thickness of protection tier is controlled using reinforced bar support skeleton |
-
2019
- 2019-02-22 CN CN201910133667.1A patent/CN109653445B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1267474A (en) * | 1969-04-11 | 1972-03-22 | Baustahlgewebe Gmbh | Improvements in or relating to concrete beams incorporating stirrup reinforcements |
| US20090277123A1 (en) * | 2008-05-07 | 2009-11-12 | Marco Guazzo | Connector for the connection between a metal element and an element made of concrete |
| CN102587661A (en) * | 2012-03-22 | 2012-07-18 | 广东中城建设集团有限公司 | Method for constructing tall-section structural column of reinforced concrete frame |
| CN203049922U (en) * | 2012-12-31 | 2013-07-10 | 新乡职业技术学院 | Slab reinforcement positioning device |
| CN103089010A (en) * | 2013-01-15 | 2013-05-08 | 中冶天工上海十三冶建设有限公司 | Cradle construction device replacing reinforced concrete beam bottom protection layer and cradle construction method |
| CN103422622A (en) * | 2013-09-07 | 2013-12-04 | 唐山曹妃甸二十二冶工程技术有限公司 | Height-adjustable recyclable reinforcing steel bar split heads |
| CN206070881U (en) * | 2016-09-12 | 2017-04-05 | 中国建筑一局(集团)有限公司 | The beam bottom bar construction of thickness of protection tier is controlled using reinforced bar support skeleton |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111391113A (en) * | 2020-03-24 | 2020-07-10 | 石家庄铁源工程咨询有限公司 | Steel bar protection layer thickness adjusting device and high-speed railway sleeper concrete placement |
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| Publication number | Publication date |
|---|---|
| CN109653445B (en) | 2021-01-12 |
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Granted publication date: 20210112 |