CN110429548B - Reinforcement skeleton of prefabricated cover plate at corner of cable trench and arrangement method of reinforcement skeleton - Google Patents
Reinforcement skeleton of prefabricated cover plate at corner of cable trench and arrangement method of reinforcement skeleton Download PDFInfo
- Publication number
- CN110429548B CN110429548B CN201910809654.1A CN201910809654A CN110429548B CN 110429548 B CN110429548 B CN 110429548B CN 201910809654 A CN201910809654 A CN 201910809654A CN 110429548 B CN110429548 B CN 110429548B
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- stress
- cover plate
- reinforcement
- prefabricated cover
- steel bar
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 67
- 239000010959 steel Substances 0.000 claims description 67
- 238000005452 bending Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 241000221931 Hypomyces rosellus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 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
According to the reinforcement cage of the prefabricated cover plate at the corner of the cable trench and the manufacturing method, the reinforcement layer in the prefabricated cover plate is formed by the plurality of positioning stirrups and the plurality of stressed reinforcement groups, the stressed reinforcement groups are of the herringbone structure, the opening ends of the stressed reinforcement groups are arranged at the end with the large width of the prefabricated cover plate, and the other ends of the stressed reinforcement groups are arranged at the end with the small width of the prefabricated cover plate, so that the reinforcement pre-buried quantity of the end with the small width of the prefabricated cover plate can be reduced, the reinforcement quantity of the end with the large diameter of the prefabricated cover plate can be ensured, the bonding reliability of mixed soil between the reinforcement bars can be ensured, and the strength of the prefabricated cover plate is improved.
Description
Technical Field
The invention relates to the field of power transmission line cable civil engineering, in particular to a reinforcement cage of a prefabricated cover plate at a corner of a cable trench and an arrangement method thereof.
Background
With the increase of national economy and the improvement of the living standard of people, the urban development is faster and faster, and more cities are in development and have a cobweb type power transmission and distribution network, so that the overhead line landing policy is implemented. More and more overhead lines are replaced by power cables, and cable trench laying is one of the main cabling modes.
The cable trench cover plate is an important component part of the cable trench, and a fan-shaped cable trench cover plate with one big end and one small end can be generated at the turning part of the cable trench. When the width of the cable trench exceeds a certain range, the widths of two ends of the trapezoid cable trench are quite different, the reinforcing steel bars at one wide end are too thin, and the concrete between the reinforcing steel bars can be damaged locally; or the steel bars at the narrow ends are too dense, concrete is difficult to pour and vibrate, and the reliable bonding of the concrete between the steel bars is difficult to ensure. Hidden danger is brought to the long-term safe and stable operation of the urban cable power transmission and distribution system.
In order to overcome the defects of the prior art, the invention provides a reinforcement cage of a prefabricated cover plate at a corner of a cable trench and an arrangement method thereof.
Disclosure of Invention
Aiming at the problem that the arrangement of the reinforcing steel bars of the corner pre-crossed cover plate is uneven in the prior art, the invention provides the reinforcement cage of the prefabricated cover plate at the corner of the cable pit and the arrangement method thereof, which ensure that the quantity of the reinforcing steel bars is reasonably reduced under the condition of meeting stress, and improve the bonding strength of concrete, thereby improving the strength of the cover plate.
The invention is realized by the following technical scheme:
the reinforcement cage of the prefabricated cover plate at the corner of the cable pit comprises a plurality of positioning stirrups arranged at intervals and a plurality of stressed reinforcement groups arranged at intervals, wherein the positioning stirrups are of annular structures, the annular section is the extending direction of the cable pit, and the length direction of the stressed reinforcement groups is the width direction of the cable pit;
the atress reinforcing bar group sets up in the inside of location stirrup, and atress reinforcing bar group's herringbone structure, and the open end of atress reinforcing bar group is located the big one side of prefabricated apron width, and the other end of atress reinforcing bar group is located the little one side of prefabricated apron width.
Preferably, the stress reinforcement group comprises two stress reinforcement bars which are symmetrically arranged, each stress reinforcement bar comprises a first stress section and a second stress section, and the first stress section is connected with the second stress section through a bending section;
the first stress sections of the two stress steel bars are clung, and the second stress sections of the two stress steel bars are symmetrically arranged on two sides of the two overlapped first stress sections, so that the stress steel bar groups form a herringbone structure.
Preferably, the distance between two second stress sections in the stress steel bar sets and the distance between two adjacent stress steel bar sets meet the requirement of steel bar construction.
Preferably, the bending angle of the bending section is 30-60 degrees.
Preferably, the distance between the two adjacent positioning stirrups is 120-180mm.
The invention also provides a method for arranging the reinforcement cage of the prefabricated cover plate at the corner of the cable trench, which comprises the following steps:
1) Building a template of the prefabricated cover plate according to the shape of the corner of the cable trench;
2) A plurality of positioning stirrups are arranged in the middle of the template at intervals, and the circumferential section of each positioning stirrup is the same as the extension direction of the cable duct;
3) Connecting steel bars with a linear structure are respectively placed at four inflection points of the positioning stirrups, and a plurality of positioning stirrups are connected to form a rectangular steel bar cage structure;
4) A plurality of stress steel bars are placed in the steel bar cage, the length direction of the stress steel bars is along the width direction of the cable trench, the first stress section is positioned at one end with small width of the template, the second stress section is positioned at one end with large width of the template, and two adjacent stress steel bars are symmetrically arranged;
5) And overlapping and bundling the first stress sections of the two adjacent stress steel bars to form a stress steel bar group, and bundling the stress steel bar group and the top of the steel bar cage.
Preferably, in step 5, the spacing between the first stress sections and the spacing between the second stress sections of the two adjacent stress reinforcement sets meet the reinforcement structure requirement.
The invention also provides a prefabricated cover plate at the corner of the cable trench, and the reinforcement cage is embedded in the prefabricated cover plate.
Compared with the prior art, the invention has the following beneficial technical effects:
the reinforcement cage of the prefabricated cover plate at the corner of the cable pit comprises a plurality of positioning stirrups and a plurality of stress reinforcement groups, wherein the stress reinforcement groups are of a herringbone structure, the opening ends of the stress reinforcement groups are arranged at one end with a large width of the prefabricated cover plate, and the other ends of the stress reinforcement groups are arranged at one end with a small width of the prefabricated cover plate.
According to the manufacturing method of the reinforcement cage, the positioning stirrups and the stressed reinforcement sets are paved in the formwork from bottom to top in sequence, the stressed reinforcement sets are required to meet the structural requirements of the reinforcements when being paved, and as the stressed reinforcements adopt the bending structure, the small ends of the prefabricated cover plates can be subjected to two-in-one reinforcement combining treatment, so that the adjacent two stressed reinforcements form a herringbone structure, the number of the reinforcements is reduced, finally, concrete is poured, the problem that the concrete between the reinforcements is damaged locally or the concrete is difficult to pour and vibrate is avoided, meanwhile, the reliability of concrete bonding between the reinforcements is improved, the strength of the cable trench cover plates is improved, and the safety, the reliability and the durability of the prefabricated cover plates are ensured, and the long-term safety and the stable operation of the urban cable power transmission and distribution system are ensured.
Drawings
Fig. 1 is a bottom layer rebar layout of a prefabricated cover plate of a cable pit of the invention;
fig. 2 is a schematic structural view of a stressed steel bar set according to the present invention;
FIG. 3 is a cross-sectional view of the large end of the prefabricated cover panel of the present invention;
fig. 4 is a cross-sectional view of the small end of the preformed cover plate of the present invention.
In the figure: 1. a stressed steel bar set; 2. positioning stirrups; 3. a template; 4. a stress steel bar; 5. a first force-bearing section; 6. bending sections; 7. a second stress section.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the invention.
Referring to fig. 1, a reinforcement cage of prefabricated apron of cable pit corner, including the location stirrup that a plurality of interval set up and the atress reinforcing bar group that a plurality of interval set up, location stirrup 2 is annular structure, and the hoop cross-section of location stirrup is the extension direction of cable pit, and atress reinforcing bar group 1 is located the inside of location stirrup 2, and equiangular equipartition, and the length direction of atress reinforcing bar group 1 is the width of cable pit the same, makes the bottom of location stirrup 2 and atress reinforcing bar group 1 be cross arrangement.
The stress steel bar set 1 is of a herringbone structure, the open end of the stress steel bar set is located on one side with large width of the prefabricated cover plate, and the other end of the stress steel bar set is located on one side with small width of the prefabricated cover plate.
Referring to fig. 2, the stress reinforcement set 1 with a herringbone structure comprises two stress reinforcement bars 4 symmetrically arranged, each reinforcement bar comprises a first stress section 5 and a second stress section 7, and one end of the first stress section 5 is connected with one end of the second stress section 7 through a bending section 6.
The first stress sections 5 of the two stress steel bars 4 are fixedly connected through bundling and overlapping to form an integral structure, the two second stress sections 7 are symmetrically arranged on two sides of the two overlapped first stress sections 5, a U-shaped groove is formed between the two second stress sections 7, and then the stress steel bar group 1 forms a herringbone structure.
The first stress sections 5 of the two stress steel bars 4 are fixedly connected in an up-down overlapping manner or horizontally overlapped manner.
One end of the bending section 6 is connected with the first stress section 5, the other end of the bending section 6 is connected with the second stress section 7, the first stress section 5, the bending section 6 and the second stress section 7 are of an integral structure, the bending section is formed by bending steel bars of a straight line structure twice, the bending angle is 30-60 degrees, and the included angle between the bending section 6 and the first stress section 5 or the second stress section 7 is 30-60 degrees.
The distance between two second stress sections 7 in the stress steel bar set 1 and the distance between two adjacent stress steel bar sets must meet the steel bar construction requirement.
The distance between the two adjacent positioning stirrups 2 is 120-180mm.
The reinforcement cage of the prefabricated cover plate at the corner of the cable pit comprises a plurality of positioning stirrups and a plurality of stress reinforcement groups, wherein the stress reinforcement groups are of a herringbone structure, the opening ends of the stress reinforcement groups are arranged at one end with a large width of the prefabricated cover plate, and the other ends of the stress reinforcement groups are arranged at one end with a small width of the prefabricated cover plate.
Referring to fig. 3 and 4, the invention also provides a method for arranging the reinforcement cage of the prefabricated cover plate at the corner of the cable pit, which comprises the following steps:
1) According to the shape of cable pit corner, build the template 3 of prefabricated apron, need guarantee that template 3 inner wall is level and smooth, template 3 connects reliably.
2) The positioning stirrups are arranged, a plurality of positioning stirrups 2 with annular structures are arranged in the template base plate at intervals, the annular section of each positioning stirrup is identical to the extending direction of the cable duct, and the number of the positioning stirrups 2 is determined according to the length of the prefabricated cover plate.
The distance between two adjacent positioning stirrups is 120mm-180mm.
The specification of the positioning stirrup 2 is determined by the shearing calculation of the cable trench cover plate.
3) And connecting steel bars with a linear structure are respectively placed at four inflection points of the positioning stirrups 2, and a plurality of positioning stirrups are connected to form a rectangular steel bar cage structure.
4) Referring to fig. 3, a plurality of stress steel bars 4 are placed in the reinforcement cage, the length direction of the stress steel bars is along the width direction of the cable trench, the first stress section 5 is located at one end with small width of the template, the second stress section 7 is located at one end with large width of the template, and two adjacent stress steel bars 4 are symmetrically arranged.
5) Referring to fig. 4, the first stress sections 5 of two adjacent stress steel bars are overlapped and bound to form a stress steel bar group 1, and then the stress steel bar group is bound with the top of the steel bar cage.
The spacing between the first stress sections 5 and the spacing between the second stress sections 7 of two adjacent stress reinforcing bar groups meet the requirement of reinforcing bar construction.
The stressed steel bar set 1 adopts a herringbone pattern, and the steel bar spacing at two ends of the prefabricated cover plate is ensured to meet the construction requirement of steel bars.
The specification of the stressed steel bar set 1 is determined by bending resistance calculation of the cable trench cover plate.
6) And pouring concrete in the template 3, and completing the manufacture of the prefabricated cover plate after the concrete is solidified.
According to the manufacturing method of the reinforcement cage of the prefabricated cover plate at the corner of the cable trench, the positioning stirrups and the stressed reinforcement sets are sequentially paved in the templates from bottom to top, the stressed reinforcement sets are required to meet the structural requirements of the reinforcements when being paved, and as the stressed reinforcement sets are of the herringbone structure, the small ends of the prefabricated cover plate can be subjected to two-in-one reinforcement combining treatment, the number of the reinforcements is reduced, finally, concrete is poured, the problem that the concrete between the reinforcements is damaged locally or the concrete is difficult to pour and vibrate is avoided, meanwhile, the reliability of concrete bonding between the reinforcements is improved, the strength of the cable trench cover plate is improved, and the safety, the reliability and the durability of the prefabricated cover plate are ensured, and the long-term safety and the stable operation of an urban cable power transmission and distribution system are ensured.
A prefabricated cover plate at the corner of a cable trench comprises a concrete layer with a fanned ring structure, wherein the reinforcement cage is embedded in the concrete layer.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (4)
1. The steel reinforcement framework of the prefabricated cover plate at the corner of the cable trench is characterized by comprising a plurality of positioning stirrups (2) arranged at intervals and a plurality of stressed steel bar groups (1) arranged at intervals, wherein the positioning stirrups (2) are of annular structures, the annular cross section is the extending direction of the cable trench, and the length direction of the stressed steel bar groups (1) is the width direction of the cable trench;
the stress steel bar set (1) is arranged in the positioning stirrup (2), the stress steel bar set (1) is of a herringbone structure, the opening end of the stress steel bar set (1) is positioned on one side with large width of the prefabricated cover plate, and the other end of the stress steel bar set (1) is positioned on one side with small width of the prefabricated cover plate;
the stress steel bar set (1) comprises two stress steel bars (4) which are symmetrically arranged, each stress steel bar comprises a first stress section (5) and a second stress section (7), and the first stress section (5) is connected with the second stress section (7) through a bending section (6);
the first stress sections (5) of the two stress steel bars (4) are tightly attached, and the second stress sections (7) of the two stress steel bars are symmetrically arranged at two sides of the overlapped two first stress sections (5), so that the stress steel bar group (1) forms a herringbone structure;
the distance between two adjacent positioning stirrups (2) is 120-180mm;
the arrangement method of the reinforcement cage of the prefabricated cover plate at the corner of the cable pit comprises the following steps:
1) Building a template (3) of the prefabricated cover plate according to the shape of the corner of the cable trench;
2) A plurality of positioning stirrups (2) are arranged in the middle of the template at intervals, and the circumferential section of each positioning stirrup is the same as the extension direction of the cable trench;
3) Connecting steel bars with a linear structure are respectively placed at four inflection points of the positioning stirrups (2), and a plurality of positioning stirrups are connected to form a rectangular steel bar cage structure;
4) A plurality of stress steel bars (4) are placed in the steel reinforcement cage, the length direction of the stress steel bars is along the width direction of the cable trench, the first stress section (5) is positioned at one end with small width of the template, the second stress section (7) is positioned at one end with large width of the template, and two adjacent stress steel bars (4) are symmetrically arranged;
5) And overlapping and bundling the first stress sections (5) of two adjacent stress steel bars to form a stress steel bar group (1), and bundling the stress steel bar group and the top of the steel bar cage.
2. The reinforcement cage of prefabricated cover plates at the corners of a cable pit according to claim 1, wherein the distance between two second stress segments (7) in the stress reinforcement sets (1) and the distance between two adjacent stress reinforcement sets meet the reinforcement construction requirements.
3. The reinforcement cage of prefabricated cover panels at the corners of a raceway according to claim 1, characterized in that the bending angle of the bending section (6) is 30-60 °.
4. A prefabricated cover plate at a corner of a cable trench, wherein the prefabricated cover plate is embedded with the reinforcement cage according to any one of claims 1-3.
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 CN110429548A (en) | 2019-11-08 |
| CN110429548B true CN110429548B (en) | 2024-02-06 |
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| 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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Citations (10)
| 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 |
| CN202989953U (en) * | 2012-12-20 | 2013-06-12 | 湖南送变电勘察设计咨询有限公司 | High-strength light anticorrosion concrete base prefabricating assembling cable trench |
| CN204221939U (en) * | 2014-11-03 | 2015-03-25 | 国家电网公司 | A kind of precast concrete cable channel cover plate mold system |
| CN104878872A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Ultra-high performance concrete cover plate with truss structure framework and production method of ultra-high performance concrete cover plate |
| CN104878874A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Pier head reinforced ultra-high performance concrete cover plate and production method thereof |
| CN105178514A (en) * | 2015-08-17 | 2015-12-23 | 陈胜民 | Three-arch three-fillet triangle type efficient high-strength thread reinforcing bar and using method thereof |
| KR20160119623A (en) * | 2015-04-06 | 2016-10-14 | (주)나우기술 | PC Concrete Structure of Variable section Reinforce for Increse Stiffness with Projecting Cable and Truss Structure |
| CN106049763A (en) * | 2016-07-27 | 2016-10-26 | 中国建筑第八工程局有限公司 | Ribbed rebar with cross ribs staggered |
| CN108560796A (en) * | 2018-04-17 | 2018-09-21 | 昆明理工大学 | A kind of concrete T type rib Covered with Angles prefabricated panel and its superimposed sheet of making |
| 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
Patent Citations (10)
| 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 |
| CN202989953U (en) * | 2012-12-20 | 2013-06-12 | 湖南送变电勘察设计咨询有限公司 | High-strength light anticorrosion concrete base prefabricating assembling cable trench |
| CN204221939U (en) * | 2014-11-03 | 2015-03-25 | 国家电网公司 | A kind of precast concrete cable channel cover plate mold system |
| KR20160119623A (en) * | 2015-04-06 | 2016-10-14 | (주)나우기술 | PC Concrete Structure of Variable section Reinforce for Increse Stiffness with Projecting Cable and Truss Structure |
| CN104878872A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Ultra-high performance concrete cover plate with truss structure framework and production method of ultra-high performance concrete cover plate |
| CN104878874A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Pier head reinforced ultra-high performance concrete cover plate and production method thereof |
| CN105178514A (en) * | 2015-08-17 | 2015-12-23 | 陈胜民 | Three-arch three-fillet triangle type efficient high-strength thread reinforcing bar and using method thereof |
| CN106049763A (en) * | 2016-07-27 | 2016-10-26 | 中国建筑第八工程局有限公司 | Ribbed rebar with cross ribs staggered |
| CN108560796A (en) * | 2018-04-17 | 2018-09-21 | 昆明理工大学 | A kind of concrete T type rib Covered with Angles prefabricated panel and its superimposed sheet of making |
| 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 |
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| CN110429548A (en) | 2019-11-08 |
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