CN112523433A - Floor slab hogging moment steel bar protective layer control device and use method thereof - Google Patents
Floor slab hogging moment steel bar protective layer control device and use method thereof Download PDFInfo
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- CN112523433A CN112523433A CN202011509840.2A CN202011509840A CN112523433A CN 112523433 A CN112523433 A CN 112523433A CN 202011509840 A CN202011509840 A CN 202011509840A CN 112523433 A CN112523433 A CN 112523433A
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- Prior art keywords
- bending
- steel bar
- hogging moment
- protective layer
- layer control
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 239000011241 protective layer Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 69
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims description 16
- 238000009415 formwork Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 11
- 108010068370 Glutens Proteins 0.000 description 3
- 235000021312 gluten Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a floor slab hogging moment reinforcing steel bar protective layer control device and a use method thereof, wherein the protective layer control device is formed by bending deformed steel bars and comprises a supporting arc, two horizontal supporting legs, two vertical supporting legs and two front supporting points which are symmetrically arranged, and the top ends of the two horizontal supporting legs are respectively connected with the two ends of the supporting arc; the bottom end of the horizontal leg is connected to one end of the vertical leg. Furthermore, the horizontal support legs symmetrically arranged in the protective layer control device are composed of straight sections L3, the horizontal support legs are perpendicular to the vertical support legs in the horizontal direction, and the connecting ends of the horizontal support legs and the supporting arc sections are smoothly bent upwards by a length D.
Description
Technical Field
The invention relates to the field of building construction, in particular to a floor slab hogging moment reinforcing steel bar protective layer control device and a use method thereof.
Background
In the building engineering, the common method for controlling the thickness of the floor slab hogging moment steel bar protective layer is to adopt a concrete cushion block to control the thickness of the hogging moment steel bar protective layer, the concrete cushion block is easy to break and cannot be fixed with the hogging moment steel bar in the construction process, and the cushion block is easy to shift or fall off and cannot play a role in controlling the protective layer, so that the protective layer does not meet the requirement;
in addition, in the control of the hogging moment reinforcing steel bar protective layer, a large amount of concrete cushion block support is often needed, so that material waste is caused, when the reinforcing steel bar is trampled or the local load is overlarge in the construction process, the concrete support part is easy to crush, collapse or shift, the construction quality of the slab is influenced, and the traditional concrete cushion block support part belongs to a floor slab weak point and has larger water seepage hidden trouble in the later stage;
in addition, to the control of floor thickness, adopt elevation control usually, on marking corresponding elevation on adjacent post reinforcing bar, control floor thickness through acting as go-between and drawing survey, this control measure operation is inconvenient, and influences the board and pour the construction progress.
Disclosure of Invention
The invention aims to provide a floor slab hogging moment steel bar protective layer control device and a use method thereof, and aims to solve the problems.
The purpose of the invention can be realized by the following technical scheme: a floor slab hogging moment reinforcing steel bar protective layer control device is formed by bending deformed steel bars and comprises a supporting arc, two horizontal supporting legs, two vertical supporting legs and two front supporting points, wherein the two horizontal supporting legs, the two vertical supporting legs and the two front supporting points are symmetrically arranged; the bottom end of the horizontal leg is connected to one end of the vertical leg.
Furthermore, the horizontal support legs symmetrically arranged in the protective layer control device are composed of straight sections L3, the horizontal support legs are vertically arranged in the horizontal direction of the vertical support legs, and the smooth upward bending length of the connecting ends of the horizontal support legs and the supporting arc sections is D.
Further, the supporting arc is composed of two symmetrical bending sections L4, the bending angle of the symmetrical bending section L4 is R2 clockwise, and the bending radius is R2.
Further, the vertical leg is composed of a straight section L1 and a bent section L2, wherein the bent section L2 has a bending angle of R2 clockwise and a bending radius of R2.
Furthermore, two vertical supporting legs in the protective layer control device are positioned on the same straight line, and the vertical supporting legs are perpendicular to the plane of the horizontal supporting legs.
Further, the protective layer control device is formed by bending deformed steel bars and specifically comprises the following steps:
s1: selecting a section of steel bar, setting a straight section L1 by taking one end of the steel bar as a starting point, clockwise bending the steel bar after the straight section L1 according to a bending radius R1 and a bending angle R1, and bending and forming the steel bar into a bent section L2;
s2: after the bending of the bent section L2 is completed, a straight section L3 is set;
s3: after setting a straight section L3, bending clockwise according to the bending radius R2 and the bending angle Y2, and bending to form a symmetrical bending section L4.
Further, a use method of the floor slab hogging moment reinforcing steel bar protection layer control device specifically comprises the following steps:
the method comprises the following steps: after the floor slabs are laid, a protective layer control device is placed on a floor slab formwork at intervals of 500mm, the protective layer control devices are placed on the same straight line, and transverse negative-moment reinforcing steel bars are placed below a supporting arc of the protective layer control devices and are firmly fixed by binding wires;
step two: and (3) placing the longitudinal negative-moment reinforcing steel bars below the transverse negative-moment reinforcing steel bars, and fully binding and fixing the joints of the longitudinal negative-moment reinforcing steel bars and the transverse negative-moment reinforcing steel bars by binding wires.
Compared with the prior art, the invention has the beneficial effects that:
when the protection device is used, the protection device is formed by bending deformed steel bars, the whole protection device is formed by arranging a supporting arc, two symmetrical horizontal supporting legs and a vertical supporting leg, the protection device ensures that the hogging moment longitudinal and transverse steel bars have enough stress conditions, prevents the steel bars from deforming and shifting due to treading of plate gluten, and the adjacent devices are arranged at intervals of 500mm, so that the whole protection layer control device is not easy to overturn, the longitudinal and transverse steel bars are fixed by adopting an upper layer and a lower layer, the thickness of a floor slab and the thickness of a double-layer steel bar protection layer can be simultaneously controlled, the construction is convenient, and the construction quality is improved;
the concrete floor protection device consists of a straight section L1, a bent section L2, a straight section L3 and a symmetrical bent section L4, is formed by multiple times of anticlockwise and clockwise bending, is simple to form, can be set into a fixed size according to the field construction condition, is simple to operate on site, reduces the construction difficulty of controlling the thickness of a concrete floor protection layer, and reduces the risk of processing the deviation of the floor protection thickness.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a hogging moment steel bar protection layer control device for a floor slab of the present invention;
FIG. 2 is a structural distribution diagram of the control device for the floor hogging moment steel bar protection layer of the present invention.
In the figure: 1. a support groove; 2. a vertical leg; 3. a horizontal leg; 4. supporting the arc; 5. transverse hogging moment reinforcing steel bars; 6. longitudinal hogging moment reinforcing steel bar.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a floor hogging moment reinforcing steel bar protection layer control device is formed by bending round steel, and comprises a supporting arc 4, two horizontal supporting legs 3, two vertical supporting legs 2, two supporting grooves 1 and two front supporting points 3, wherein the two horizontal supporting legs 3 are symmetrically arranged, and the top ends of the two horizontal supporting legs 3 are respectively connected with two ends of the supporting arc 4; the bottom end of the horizontal supporting leg 3 symmetrically arranged is connected to one end of the vertical supporting leg 2, wherein the supporting arc 4 is a gluten supporting arc.
The horizontal supporting leg 3 in the protective layer control device is composed of a straight section L3, the horizontal direction of the horizontal supporting leg 3 and the horizontal direction of the vertical supporting leg 2 form 90 degrees, the smooth upward bending length of the connecting end of the horizontal supporting leg 3 and the connecting end of the supporting arc 4 section is D, and the D is a preset length.
The supporting arc 4 is composed of two symmetrical bending sections L4, the bending angle of the symmetrical bending section L4 is R2 clockwise, and the bending radius is R2.
The vertical leg 2 is composed of a straight section L1 and a bent section L2, wherein the bent section L2 is bent at a clockwise R2 angle and is bent at a radius R2.
The two vertical legs 2 in the protective layer control device are positioned on the same straight line, and the vertical legs 2 are perpendicular to the plane of the horizontal leg 3.
The protective layer control device is formed by bending deformed steel bars and specifically comprises the following steps:
s1: selecting a section of steel bar, setting a straight section L1 by taking one end of the steel bar as a starting point, clockwise bending the steel bar after the straight section L1 according to a bending radius R1 and a bending angle R1, and bending and forming the steel bar into a bent section L2;
s2: after the bending of the bent section L2 is completed, a straight section L3 is set;
s3: after setting a straight section L3, bending clockwise according to the bending radius R2 and the bending angle Y2, and bending to form a symmetrical bending section L4.
The construction method of the protective layer control device specifically comprises the following steps:
the method comprises the following steps: after the floor slabs are laid, a protective layer control device is placed on a floor slab formwork at intervals of 500mm, the protective layer control devices are placed on the same straight line, and transverse negative bending moment steel bars 5 are placed below a supporting arc 4 of the protective layer control devices and are firmly fixed by binding wires;
step two: and (3) placing the longitudinal hogging moment reinforcing steel bar 6 below the transverse hogging moment reinforcing steel bar 5, and fully binding and fixing the joint of the longitudinal hogging moment reinforcing steel bar and the transverse hogging moment reinforcing steel bar by adopting binding wires.
The invention has the beneficial effects that: the protection device is formed by bending deformed steel bars, the whole protection device is formed by arranging a supporting arc, two symmetrical horizontal supporting legs and a vertical supporting leg, the device ensures that the hogging moment longitudinal and transverse steel bars have enough stress conditions, prevents the steel bars from deforming and shifting due to treading of plate gluten, and is placed at an interval of 500mm between adjacent devices, so that the whole protection layer control device is not easy to overturn;
the concrete floor protection device consists of a straight section L1, a bent section L2, a straight section L3 and a symmetrical bent section L4, is formed by multiple times of anticlockwise and clockwise bending, is simple to form, can be set into a fixed size according to the field construction condition, is simple to operate on site, reduces the construction difficulty of controlling the thickness of a concrete floor protection layer, and reduces the risk of processing the deviation of the floor protection thickness.
The working principle is as follows: when the steel bar bending device is used, firstly, a section of steel bar is selected, a straight section L1 is set by taking one end of the steel bar as a starting point, and the steel bar is bent clockwise according to the bending radius R1 and the bending angle R1 after the straight section L1 to form a bent section L2; after the bending of the bent section L2 is completed, a straight section L3 is set; after a straight section L3 is set, clockwise bending is carried out according to the bending radius R2 and the bending angle Y2, the straight section is bent into a symmetrical bending section L4, after floor slabs are laid, protective layer control devices are placed on floor slabs at intervals of 500mm, the protective layer control devices are placed on the same straight line, and transverse negative bending moment steel bars 5 are placed below a supporting arc 4 of each protective layer control device and are fixed firmly through binding wires; and (3) placing the longitudinal hogging moment reinforcing steel bar 6 below the transverse hogging moment reinforcing steel bar 5, and fully binding and fixing the joint of the longitudinal hogging moment reinforcing steel bar and the transverse hogging moment reinforcing steel bar by adopting binding wires.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A floor hogging moment reinforcing steel bar protective layer control device is characterized in that the protective layer control device is formed by bending round steel and comprises a supporting arc (4), two horizontal supporting legs (3), two vertical supporting legs (2), two supporting grooves (1) and two front supporting points (3), wherein the two horizontal supporting legs (3) are symmetrically arranged, and the top ends of the two horizontal supporting legs are respectively connected with the two ends of the supporting arc (4); the bottom ends of the horizontal supporting legs (3) which are symmetrically arranged are connected to one end of the vertical supporting leg (2).
2. The device for controlling the floor hogging moment reinforcing steel bar protection layer as claimed in claim 1, wherein the symmetrically arranged horizontal legs (3) are composed of straight sections L3, the horizontal legs (3) and the vertical legs (2) are arranged vertically in the horizontal direction, and the smooth upward bending length of the connecting ends of the horizontal legs (3) and the supporting arc sections (4) is D.
3. The device for controlling the hogging moment reinforcing steel bar protection of floor slab as claimed in claim 1, wherein the support arc (4) is composed of two symmetrical bending sections L4, the bending angle of the symmetrical bending section L4 is R2 clockwise, and the bending radius is R2.
4. The device for controlling the hogging moment reinforcing steel bar protection of floor slab as claimed in claim 1, wherein the vertical leg (2) is composed of a straight section L1 and a curved section L2, the curved section L2 has a clockwise R2 bending angle and a radius R2 bending angle.
5. The device for controlling the floor hogging moment steel bar protection layer as claimed in claim 1, wherein the two vertical legs (2) are located on the same straight line, and the vertical legs (2) are perpendicular to the plane of the horizontal leg (3).
6. The floor hogging moment steel bar protection layer control device of claim 1, wherein the manufacturing method of the floor hogging moment steel bar protection layer control device specifically comprises the following steps:
s1: selecting a section of steel bar, setting a straight section L1 by taking one end of the steel bar as a starting point, clockwise bending the steel bar after the straight section L1 according to a bending radius R1 and a bending angle R1, and bending and forming the steel bar into a bent section L2;
s2: after the bending of the bent section L2 is completed, a straight section L3 is set;
s3: after setting a straight section L3, bending clockwise according to the bending radius R2 and the bending angle Y2, and bending to form a symmetrical bending section L4.
7. The method for using the device for controlling the protective layer of the hogging moment steel reinforcement of the floor slab as claimed in claim 1, wherein the method comprises the following steps:
the method comprises the following steps: after the floor slabs are laid, a protective layer control device is placed on a floor slab formwork at intervals of 500mm, the protective layer control devices are placed on the same straight line, and transverse negative moment reinforcing steel bars (5) are placed below a supporting arc (4) of the protective layer control devices and are firmly fixed by binding wires;
step two: and (3) placing the longitudinal hogging moment reinforcing steel bars (6) below the transverse hogging moment reinforcing steel bars (5), and fully binding and fixing the joints of the longitudinal hogging moment reinforcing steel bars and the transverse hogging moment reinforcing steel bars by binding wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011509840.2A CN112523433A (en) | 2020-12-19 | 2020-12-19 | Floor slab hogging moment steel bar protective layer control device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011509840.2A CN112523433A (en) | 2020-12-19 | 2020-12-19 | Floor slab hogging moment steel bar protective layer control device and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112523433A true CN112523433A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011509840.2A Pending CN112523433A (en) | 2020-12-19 | 2020-12-19 | Floor slab hogging moment steel bar protective layer control device and use method thereof |
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| CN (1) | CN112523433A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388791A (en) * | 1980-04-28 | 1983-06-21 | Anderson Frank H | Rebar tie |
| CN202007479U (en) * | 2011-03-25 | 2011-10-12 | 鞍山三冶建筑工程有限公司 | Floor slab reinforcing steel bar positioning device |
| CN203626264U (en) * | 2013-12-09 | 2014-06-04 | 中国三冶集团有限公司管道工程公司 | Protective layer control apparatus for hogging moment reinforced steel bar suspension construction |
| CN211775125U (en) * | 2019-08-26 | 2020-10-27 | 中国水利水电第十四工程局有限公司 | Adjustable support for reinforced concrete negative moment reinforcing steel bar protective layer |
| CN112031279A (en) * | 2020-08-31 | 2020-12-04 | 上海宝冶集团有限公司 | Method for supporting upper steel bars in frame structure concrete floor |
-
2020
- 2020-12-19 CN CN202011509840.2A patent/CN112523433A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388791A (en) * | 1980-04-28 | 1983-06-21 | Anderson Frank H | Rebar tie |
| CN202007479U (en) * | 2011-03-25 | 2011-10-12 | 鞍山三冶建筑工程有限公司 | Floor slab reinforcing steel bar positioning device |
| CN203626264U (en) * | 2013-12-09 | 2014-06-04 | 中国三冶集团有限公司管道工程公司 | Protective layer control apparatus for hogging moment reinforced steel bar suspension construction |
| CN211775125U (en) * | 2019-08-26 | 2020-10-27 | 中国水利水电第十四工程局有限公司 | Adjustable support for reinforced concrete negative moment reinforcing steel bar protective layer |
| CN112031279A (en) * | 2020-08-31 | 2020-12-04 | 上海宝冶集团有限公司 | Method for supporting upper steel bars in frame structure concrete floor |
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Application publication date: 20210319 |