CN110429548A - A kind of framework of steel reinforcement and its method for arranging of the prefabricated cover board of cable duct corner - Google Patents
A kind of framework of steel reinforcement and its method for arranging of the prefabricated cover board of cable duct corner Download PDFInfo
- Publication number
- CN110429548A CN110429548A CN201910809654.1A CN201910809654A CN110429548A CN 110429548 A CN110429548 A CN 110429548A CN 201910809654 A CN201910809654 A CN 201910809654A CN 110429548 A CN110429548 A CN 110429548A
- Authority
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- China
- Prior art keywords
- stress
- steel bar
- steel
- cable duct
- cover board
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 117
- 239000010959 steel Substances 0.000 title claims abstract description 117
- 230000002787 reinforcement Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 238000005452 bending Methods 0.000 claims description 13
- 210000003205 muscle Anatomy 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000221931 Hypomyces rosellus Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002435 tendon 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
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
- H02G9/025—Coverings therefor, e.g. tile
Abstract
The framework of steel reinforcement and production method of a kind of prefabricated cover board of cable duct corner provided by the invention, steel bar layer in prefabricated cover board is constituted using several positioning stirrups and several steel bar stress groups, steel bar stress group is people's font structure, the big one end of preform lid board width is arranged in open end, the small one end of preform lid board width is arranged in the other end of steel bar stress, this makes it possible to the pre-buried quantity of reinforcing bar for reducing the small one end of preform lid board width, it can guarantee the number of steel bars of the big one end of prefabricated cover plate diameter simultaneously, therefore it can guarantee the reliability that the bonding of the pure land is mixed between reinforcing bar, improve the intensity of prefabricated cover board.
Description
Technical field
The present invention relates to power line cables civil engineering fields, and in particular to a kind of prefabricated cover board of cable duct corner
Framework of steel reinforcement and its method for arranging.
Background technique
With the growth of national economy, the raising of living standards of the people, urban development is getting faster, more and more cities
The transmission and distribution networks that cobweb formula is taken leave of in development carry out overhead line and land policy.More and more overhead lines are by electric power electricity
Cable replaces, and cable duct laying is one of main overhead cabling method.
Cable channel cover plate is the important component part of cable duct, at cable duct turning, will be generated " one one big
It is small " sector cable trench cover.When cable duct width is more than certain range, the width at trapezoidal cable duct both ends can be differed very
Greatly, a wide end bar is excessively dilute, and the concrete between reinforcing bar and reinforcing bar may generate local failure；An or narrow end bar
Overstocked, concrete, which is difficult to pour, to vibrate, and the reliable bond of the concrete between reinforcing bar is difficult to ensure.Give city cable power transmission and distribution
The long-term safety of system and stable operation bring hidden danger.
In order to overcome existing technological deficiency, the present invention has developed a kind of reinforcing bar of the prefabricated cover board of cable duct corner
Skeleton and its method for arranging.
Summary of the invention
The non-uniform problem of cover board steel bar arrangement is pre-payed for corner in the prior art, the present invention provides a kind of cable duct turn
The framework of steel reinforcement and its method for arranging of prefabricated cover board at angle, under conditions of guaranteeing to meet stress, reasonable few reinforcing bar
Quantity improves the adhesion strength of concrete, and then improves the intensity of cover board.
The present invention is to be achieved through the following technical solutions:
A kind of framework of steel reinforcement of the prefabricated cover board of cable duct corner, if including several spaced positioning stirrups and
Dry spaced steel bar stress group, positioning stirrup are ring structure, and circumferential section is the extending direction of cable duct, stress steel
The length direction of muscle group is the width direction of cable duct；
The inside of positioning stirrup is arranged in steel bar stress group, and steel bar stress group is herringbone structure, and steel bar stress group is opened
Mouth end is located at the big side of preform lid board width, and the other end of steel bar stress group is located at the small side of preform lid board width.
Preferably, the steel bar stress group includes two symmetrically arranged steel bar stresses, and each steel bar stress includes first
Stress section and the second stress section, the first stress section are connect by bending section with the second stress section；
First stress section of two steel bar stresses is close to, and the second stress section of two steel bar stresses is symmetricly set on overlapping
The two sides of two the first stress sections make steel bar stress group form herringbone structure.
Preferably, the distance between two second stress sections in the steel bar stress group and two neighboring stress steel
Spacing between muscle group meets reinforcement constitution requirement.
Preferably, the bending angle of the bending section is 30-60 °.
Preferably, the spacing between the two neighboring positioning stirrup is 120-180mm.
The present invention also provides a kind of method for arranging of the framework of steel reinforcement of the prefabricated cover board of cable duct corner, including it is following
Step:
1) according to the shape of cable duct corner, the template of prefabricated cover board is built；
2) it is spaced apart several positioning stirrups in a template, positions the circumferential section of stirrup and the extending direction phase of cable duct
Together；
3) the connection reinforcing bar for placing a linear structure respectively at four inflection points of positioning stirrup, several positioning stirrups are connected
It connects, forms rectangle reinforcement cage structure；
4) several steel bar stresses are placed in the inside of steel reinforcement cage, the length direction of steel bar stress is the width along cable duct
Direction, the first stress section are located at the small one end of template width, and the second stress section is located at the big one end of template width, and two neighboring
Steel bar stress is symmetrical arranged；
5) overlapping of the first stress section of two neighboring steel bar stress is tied up, forms steel bar stress group, by steel bar stress
It organizes and is tied up at the top of steel reinforcement cage.
Preferably, spacing and the second stress in step 5, between the first stress section of two neighboring steel bar stress group
Spacing between section, meets reinforcement constitution requirement.
It is embedding in the prefabricated cover board to have above-mentioned steel the present invention also provides a kind of prefabricated cover board of cable duct corner
Tendons skeleton.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of framework of steel reinforcement of the prefabricated cover board of cable duct corner provided by the invention, if including several positioning stirrups and
Dry steel bar stress group is constituted, and steel bar stress group is people's font structure, and the big one end of preform lid board width, stress is arranged in open end
The small one end of preform lid board width is arranged in the other end of reinforcing bar, and this makes it possible to the steel for reducing the small one end of preform lid board width
The pre-buried quantity of muscle, while can guarantee the number of steel bars of the big one end of prefabricated cover plate diameter, therefore can guarantee to mix between reinforcing bar
The reliability of the bonding of the pure land improves the intensity of prefabricated cover board.
The production method of framework of steel reinforcement provided by the invention, by template from bottom to top successively be laid with positioning stirrup and
Steel bar stress group need to make it meet the detailing requiments of reinforcing bar when being laid with steel bar stress group, since steel bar stress uses bending structure,
Therefore " two-in-one " and muscle processing can be carried out to the small end of prefabricated cover board, and two neighboring steel bar stress is made to form chevron shaped knot
Structure reduces the quantity of reinforcing bar, finally in casting concrete, can be avoided the concrete between reinforcing bar and generates local failure, or
Concrete is difficult to pour the problem of vibrating, while improving the reliability of concrete binding between reinforcing bar, improves cable channel cover plate
Intensity, guarantee safety, reliability and the durability of prefabricated cover board, guarantee city cable electrical power trans mission/distribution system long-term safety and
Stable operation.
Detailed description of the invention
Fig. 1 is the bottom layer of the reinforcing steel layout drawing of cable trench prefabricating cover board of the present invention；
Fig. 2 is the structural schematic diagram of steel bar stress group of the present invention；
Fig. 3 is the sectional view of the prefabricated cover board big end of the present invention；
Fig. 4 is the sectional view of the prefabricated cover board small end of the present invention.
In figure: 1, steel bar stress group；2, stirrup is positioned；3, template；4, steel bar stress；5, the first stress section；6, bending segment；
7, the second stress section.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit
It is fixed.
Refering to fig. 1, a kind of framework of steel reinforcement of the prefabricated cover board of cable duct corner, including several spaced positioning
Stirrup and several spaced steel bar stress groups, positioning stirrup 2 are ring structure, and the circumferential section for positioning stirrup is cable
The extending direction of ditch, steel bar stress group 1 are located at the inside of positioning stirrup 2, and angularly uniformly distributed, the length side of steel bar stress group 1
To for the of same size of cable duct, make the bottom for positioning stirrup 2 and steel bar stress group 1 in cross arranged crosswise.
Steel bar stress group 1 is herringbone structure, and the open end of steel bar stress group is located at the big side of preform lid board width, by
The other end of power reinforcing bar group is located at the small side of preform lid board width.
Referring to Fig.2, the steel bar stress group 1 of the herringbone structure, including two symmetrically arranged steel bar stresses 4, each
Reinforcing bar includes the first stress section 5 and the second stress section 7, and one end of the first stress section 5 passes through bending section 6 and the second stress section 7
One end.
First stress section 5 of two steel bar stresses 4 is connected by tying up overlapping, forms an overall structure, and two second
Stress section 7 is symmetricly set on the two sides of two the first stress sections 5 of overlapping, forms U-type groove between two the second stress sections 7, into
And steel bar stress group 1 is made to form herringbone structure.
The first about 5 stress section overlapping of two steel bar stresses 4 is connected or horizontally overlapping connected.
One end of bending section 6 is connect with the first stress section 5, and the other end is connect with the second stress section 7, the first stress section 5, folding
Curved segment 6 and the second stress section 7 are overall structure, and the reinforcing bar of You Yigen linear structure carries out bending twice and formed, and bending angle is
30-60 °, the angle of bending section 6 and the first stress section 5 or the second stress section 7 is 30-60 °.
The distance between two second stress sections 7 in the steel bar stress group 1 and two neighboring steel bar stress group it
Between spacing, it is necessary to meet reinforcement constitution requirement.
Spacing between the two neighboring positioning stirrup 2 is 120-180mm.
A kind of framework of steel reinforcement of the prefabricated cover board of cable duct corner provided by the invention, if including several positioning stirrups and
Dry steel bar stress group is constituted, and steel bar stress group is people's font structure, and the big one end of preform lid board width, stress is arranged in open end
The small one end of preform lid board width is arranged in the other end of reinforcing bar, and this makes it possible to the steel for reducing the small one end of preform lid board width
The pre-buried quantity of muscle, while can guarantee the number of steel bars of the big one end of prefabricated cover plate diameter, therefore can guarantee to mix between reinforcing bar
The reliability of the bonding of the pure land improves the intensity of prefabricated cover board.
Refering to Fig. 3 and 4, the present invention also provides the arrangement sides of the framework of steel reinforcement of the prefabricated cover board of above-mentioned cable duct corner
Method, comprising the following steps:
1) according to the shape of cable duct corner, the template 3 of prefabricated cover board is built, need to guarantee that 3 inner wall of template is flat and smooth,
Template 3 connects reliably.
2) arrangement positioning stirrup, the positioning stirrup 2 of several ring structures is spaced apart in template plate, positions stirrup
Circumferential section is identical as the extending direction of cable duct, and the quantity for positioning stirrup 2 is determined according to the length of prefabricated cover board.
Two neighboring positioning stirrup spacing is 120mm-180mm.
2 specification of positioning stirrup is determined by cable channel cover plate shear calculation.
3) the connection reinforcing bar for placing a linear structure respectively at four inflection points of positioning stirrup 2, by several positioning stirrups
Connection forms rectangle reinforcement cage structure.
4) refering to Fig. 3, several steel bar stresses 4 are placed in the inside of steel reinforcement cage, the length direction of steel bar stress is along electricity
The width direction of cable ditch, the first stress section 5 are located at the small one end of template width, and the second stress section 7 is located at big one of template width
End, and two neighboring steel bar stress 4 is symmetrical arranged.
5) refering to Fig. 4, the first stress section 5 overlapping of two neighboring steel bar stress is tied up, steel bar stress group 1 is formed, then
It will be tied up at the top of steel bar stress group and steel reinforcement cage.
The spacing between spacing and the second stress section 7 between first stress section 5 of two neighboring steel bar stress group,
Meet reinforcement constitution requirement.
The steel bar stress group 1 takes herringbone pattern, guarantees that the bar spacing of preform lid board ends all meets reinforcing bar
Detailing requiments.
1 specification of steel bar stress group is determined by cable channel cover plate flexural calculation.
6) casting concrete in template 3 completes the production of prefabricated cover board after concrete setting.
The production method of the framework of steel reinforcement of the prefabricated cover board of cable duct corner provided by the invention, by template from
It is successively laid with positioning stirrup and steel bar stress group on down, it need to be made to meet the detailing requiments of reinforcing bar when being laid with steel bar stress group,
Since steel bar stress group uses chevron shaped structure, " two-in-one " and muscle processing can be carried out to the small end of prefabricated cover board, is subtracted
The quantity of reinforcing bar is lacked, finally in casting concrete, the concrete that can be avoided between reinforcing bar generates local failure or concrete
It is difficult to pour the problem of vibrating, while improving the reliability of concrete binding between reinforcing bar, improve the intensity of cable channel cover plate,
Guarantee safety, reliability and the durability of prefabricated cover board, guarantee the long-term safety of city cable electrical power trans mission/distribution system and stablizes fortune
Row.
A kind of prefabricated cover board of cable duct corner, the concrete layer including fanning ring type structure are embedding in concrete layer
Above-mentioned framework of steel reinforcement.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (8)
1. a kind of framework of steel reinforcement of the prefabricated cover board of cable duct corner, which is characterized in that spaced fixed including several
Position stirrup (2) and several spaced steel bar stress groups (1), positioning stirrup (2) are ring structure, and circumferential section is cable
The extending direction of ditch, the length direction of steel bar stress group (1) are the width direction of cable duct；
In the inside of positioning stirrup (2), steel bar stress group (1) is herringbone structure, steel bar stress group for steel bar stress group (1) setting
(1) open end is located at the big side of preform lid board width, and it is small that the other end of steel bar stress group (1) is located at preform lid board width
Side.
2. the framework of steel reinforcement of the prefabricated cover board of cable duct corner according to claim 1, which is characterized in that the stress steel
Muscle group (1) includes two symmetrically arranged steel bar stresses (4), and each steel bar stress includes the first stress section (5) and the second stress
Section (7), the first stress section (5) are connect by bending section (6) with the second stress section (7)；
First stress section (5) of two steel bar stresses (4) is close to, and the second stress section (7) of two steel bar stresses is symmetricly set on
The two sides of two the first stress sections (5) of overlapping make steel bar stress group (1) to form herringbone structure.
3. the framework of steel reinforcement of the prefabricated cover board of cable duct corner according to claim 2, which is characterized in that the stress steel
Spacing between the distance between two second stress sections (7) in muscle group (1) and two neighboring steel bar stress group meets
Reinforcement constitution requirement.
4. the framework of steel reinforcement of the prefabricated cover board of cable duct corner according to claim 2, which is characterized in that the bending section
(6) bending angle is 30-60 °.
5. the framework of steel reinforcement of the prefabricated cover board of cable duct corner according to claim 1, which is characterized in that described adjacent two
Spacing between a positioning stirrup (2) is 120-180mm.
6. a kind of method for arranging of the framework of steel reinforcement of the prefabricated cover board of the cable duct corner any one of claim 1-5,
It is characterized in that, comprising the following steps:
1) according to the shape of cable duct corner, the template (3) of prefabricated cover board is built；
2) it is spaced apart several positioning stirrups (2) in a template, positions the circumferential section of stirrup and the extending direction phase of cable duct
Together；
3) the connection reinforcing bar for placing a linear structure respectively at four inflection points of positioning stirrup (2), several positioning stirrups are connected
It connects, forms rectangle reinforcement cage structure；
4) several steel bar stresses (4) are placed in the inside of steel reinforcement cage, the length direction of steel bar stress is the width along cable duct
Direction, the first stress section (5) are located at the small one end of template width, and the second stress section (7) is located at the big one end of template width, and phase
Adjacent two steel bar stresses (4) are symmetrical arranged；
5) overlapping of the first stress section (5) of two neighboring steel bar stress is tied up, is formed steel bar stress group (1), by stress steel
It is tied up at the top of muscle group and steel reinforcement cage.
7. the arrangement of the framework of steel reinforcement of the prefabricated cover board for stating cable duct corner of cable duct corner according to claim 6
Method, which is characterized in that the spacing and second in step 5, between the first stress section (5) of two neighboring steel bar stress group
Spacing between stress section (7), meets reinforcement constitution requirement.
8. a kind of prefabricated cover board of cable duct corner, which is characterized in that embedding in the prefabricated cover board to have the right that 1-5 is required to appoint
Framework of steel reinforcement described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809654.1A CN110429548B (en) | 2019-08-29 | 2019-08-29 | Reinforcement skeleton of prefabricated cover plate at corner of cable trench and arrangement method of reinforcement skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809654.1A CN110429548B (en) | 2019-08-29 | 2019-08-29 | Reinforcement skeleton of prefabricated cover plate at corner of cable trench and arrangement method of reinforcement skeleton |
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| Publication Number | Publication Date |
|---|---|
| CN110429548A true CN110429548A (en) | 2019-11-08 |
| CN110429548B CN110429548B (en) | 2024-02-06 |
Family
ID=68418103
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910809654.1A Active CN110429548B (en) | 2019-08-29 | 2019-08-29 | Reinforcement skeleton of prefabricated cover plate at corner of cable trench and arrangement method of reinforcement skeleton |
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| CN210129724U (en) * | 2019-08-29 | 2020-03-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Steel reinforcement framework of prefabricated apron and prefabricated apron of cable pit corner |
-
2019
- 2019-08-29 CN CN201910809654.1A patent/CN110429548B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR074784A4 (en) * | 2009-12-17 | 2011-02-09 | Cupa Materiales Sa | PREFABRICATED PANEL WITH SIDE VIEW TYPE FOR WALL CONSTRUCTION, WITH ANCHORAGE AND MANUFACTURING PROCESS |
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| CN110429548B (en) | 2024-02-06 |
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