CN106626045A - Prestressed concrete pole as well as mold and manufacturing method thereof - Google Patents
Prestressed concrete pole as well as mold and manufacturing method thereof Download PDFInfo
- Publication number
- CN106626045A CN106626045A CN201610887434.7A CN201610887434A CN106626045A CN 106626045 A CN106626045 A CN 106626045A CN 201610887434 A CN201610887434 A CN 201610887434A CN 106626045 A CN106626045 A CN 106626045A
- Authority
- CN
- China
- Prior art keywords
- prestressing force
- cage bar
- threaded hole
- end plate
- spiral
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
- B28B13/065—Removing the shaped articles from moulds by applying electric current or other means of discharging, e.g. pneumatic or hydraulic discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention provides a prestressed concrete pole which comprises a reinforcement skeleton and concrete and is characterized in that the reinforcement skeleton is composed of two end plates at the two end respectively; each end plate is composed of a steel plate ring and an anchoring disc; stretching screw holes which are uniformly distributed on the circumference of each anchoring disc are formed in each anchoring disc; prestressed main reinforcement holes are formed beside the corresponding stretching screw holes are formed in each anchoring disc, communicate with the corresponding stretching screw holes and are internally provided with corresponding prestressed main reinforcements longitudinally; a spiral reinforcement is welded on each prestressed main reinforcement in a surrounding manner; a steel tube is pre-buried in the reinforcement skeleton transversely; and concrete is poured in the reinforcement skeleton. The prestressed concrete pole has the beneficial effects that after the prestressed concrete pole stretches, prestress is uniformly distributed without loss, and a longitudinal crack generated due to prestress eccentricity is prevented; through actual measurement, the crack resistance check coefficient is 2.0, the bearing capacity check moment is 75Kn.m, the deflection is 18mm, and the crack resistance check coefficient, the bearing capacity check moment and the deflection are all superior to the national standard; and in addition, the structure of the prestressed concrete pole can realize simultaneous multi-segment stretching.
Description
Technical field
The present invention relates to field of power transmission, particularly a kind of prestressed concrete electric pole and its mould and manufacture method.
Background technology
The reinforcing bar of conventional concrete electric pole is carbon steel wire, is Jing workpeoples craft colligation, then manual welded framework, hand
Work cold-heading, the solid anchor mode of its reinforcing bar is punctuated with inner ring using heading and is contacted, and then outer lap welding muscle carries out outer tensioning, prestressing force point
Cloth is uneven, and such stress loss is big, causes product quality not high；Next is easily caused cage bar and is produced due to prestressing force partially
The heart, causes electric pole to produce longitudinal crack.
The content of the invention
For improve product quality, the present invention proposes a kind of prestressed concrete electric pole and its mould and manufacture method.
This prestressing force mixed mud electric pole, including framework of steel reinforcement and concrete, it is characterised in that the framework of steel reinforcement includes
The end plate at two ends, the end plate is made up of steel plate ring and anchor disc, and anchor disc is provided with and is evenly distributed on anchor disc circumference
Tensioning threaded hole, is provided with prestressing force cage bar holes, prestressing force cage bar holes and tensioning threaded hole phase by tensioning threaded hole in anchor disc
It is logical, prestressing force cage bar is longitudinally provided with prestressing force cage bar holes, around spiral bar is welded with prestressing force cage bar, in framework of steel reinforcement
Inside laterally be embedded with steel pipe, be cast with concrete in framework of steel reinforcement, concrete using P.o52.5 class g cements, medium coarse sand, rubble or
Broken pebble is prepared.Strength grade C60, concrete Quality Control should meet the regulation of GB50164.
The prestressing force cage bar holes are counter sink.
The tensioning threaded hole has 10, and a diameter of 20mm of tensioning threaded hole, prestressing force cage bar holes are 10, prestressing force
The a diameter of 10mm of cage bar holes, tensioning threaded hole distance of center circle prestressing force cage bar holes center of circle distance is 22mm.
The prestressing force cage bar is spiral ribs rod iron, and spiral ribs rod iron has 10 9.0, and spiral ribs rod iron is low using cold-drawn
Carbon alloy rod iron, material is 30MnSi, and its quality accords with the regulation of underrelaxation spiral ribs rod iron in what GB/T5233, and tensile strength
Not less than 1420Mpa.
The spiral bar adopts cold-drawn low-carbon wire, is 50mm from spiral bar the initial segment 500mm inside spin spacing, from spiral
Muscle latter end 500mm inside spins spacing is 50mm, and the helix pitch for being left the spiral bar of length is 100mm.
The mould of this prestressing force mixed mud electric pole, including upper mold section and female die, it is characterised in that upper mold section and lower half
Module synthesizes the cylinder of one end closing, and there is a threaded rod at female die one end center, and threaded rod one end is welded with first flange, and first
Flange is bolted to connection with the tensioning threaded hole on the end plate of framework of steel reinforcement；Framework of steel reinforcement other end end plate passes through spiral shell
Tether and be connected to second flange；Second flange external diameter revolves more than the internal diameter after upper mold section and female die matched moulds on the threaded rod other end
There is pre-load nut.
The manufacture method of this prestressed concrete electric pole, it is characterised in that（1）By the end upsetting device upsetting of prestressing force cage bar
Head；（2）Spiral bar is welded with by automatic welding machine on the longitudinal direction of prestressing force cage bar；（3）Prestressing force cage bar is led to and is put
Put on the end plate of two ends in tensioning threaded hole, disposably prestressing force cage bar is rotated in the prestressing force cage bar holes to end plate；（4）
The framework of steel reinforcement for assembling and end plate are put in the female die；（5）By bolt by the tensioning threaded hole on end plate with
First flange connects；（6）The tensioning threaded hole on another end plate is connected with second flange by bolt；（7）Closed by loop wheel machine
Upper upper mold section；（8）Pre-load nut is rotated by stretching machine, stretch-draw prestressing force is produced, prestress control is in standard pull tension intensity
70%；(9) it is molded by centrifuge；（10）It is steam-cured using low-pressure saturated steam；（11）By stretching machine counter-rotating pretension
Nut carries out putting, and when putting, concrete crushing strength must reach 70% of the strength grade of concrete value more than design；
（12）By the loop wheel machine demoulding.
The invention has the beneficial effects as follows, prestressing force is uniformly distributed after prestressing force mixed mud electric pole tensioning, damages without prestressing force
Lose, it is therefore prevented that be 2.0 through surveying check coefficient of crack resistance because of the eccentric longitudinal crack for producing of prestressing force, bearing capacity examination moment of flexure
For 75Kn.m, amount of deflection is 18mm, is superior to national standard, and present configuration can realize multistage simultaneous tension.
Description of the drawings
Fig. 1. prestressing force mixed mud electric pole structural front view
Fig. 2. prestressing force mixed mud electric pole structure top view
Fig. 3. the female die right view of prestressing force mixed mud electric pole
Fig. 4. the mode host visual pattern of prestressing force mixed mud electric pole
In Fig. 1 to Fig. 4,1, framework of steel reinforcement, 2, concrete, 3, end plate, 4, steel plate ring, 5, anchor disc, 6, tensioning threaded hole, 7,
Prestressing force cage bar holes, 8, prestressing force cage bar, 9, spiral bar, 10, the mould of prestressing force mixed mud electric pole, 10.1, upper mold section,
10.2nd, female die, 10.2.1, threaded rod, 10.2.2, first flange, 10.2.3, pre-load nut, 10.2.4, second flange, 11,
Steel pipe.
Specific embodiment
In Fig. 1 to Fig. 4, this prestressing force mixed mud electric pole, including framework of steel reinforcement 1 and concrete 2, it is characterised in that
The framework of steel reinforcement 1 includes the end plate 3 at two ends, and the end plate 3 is made up of steel plate ring 4 and anchor disc 5, and anchor disc 5 is provided with
The even tensioning threaded hole 6 being distributed on the circumference of anchor disc 5, is provided with prestressing force cage bar holes 7 by tensioning threaded hole 6 in anchor disc 5,
Prestressing force cage bar holes 7 are communicated with tensioning threaded hole 6, and in prestressing force cage bar holes 7 prestressing force cage bar 8, prestressing force master are longitudinally provided with
Around spiral bar 9 is welded with muscle 8, laterally it is embedded with framework of steel reinforcement 1 in steel pipe 11, framework of steel reinforcement 1 and is cast with concrete,
Concrete is prepared using P.o52.5 class g cements, medium coarse sand, rubble or broken pebble.Strength grade C60, concrete Quality Control
The regulation of GB50164 should be met.
The prestressing force cage bar holes 7 are counter sink.
The tensioning threaded hole 6 has 10, and a diameter of 20mm of tensioning threaded hole 6, prestressing force cage bar holes 7 are 10, in advance should
The a diameter of 10mm of power cage bar holes 7, the center of circle of 6 distance of center circle prestressing force cage bar holes of tensioning threaded hole 7 distance is 22mm.
The prestressing force cage bar 8 is spiral ribs rod iron, and spiral ribs rod iron has 10 9.0, and spiral ribs rod iron is low using cold-drawn
Carbon alloy rod iron, material is 30MnSi, and its quality accords with the regulation of underrelaxation spiral ribs rod iron in what GB/T5233, and tensile strength
Not less than 1420Mpa.
The spiral bar 9 adopts cold-drawn low-carbon wire, is 50mm from the initial segment 500mm inside spin spacing of spiral bar 9, from spiral shell
Rotation muscle 9 latter end 500mm inside spins spacing is 50mm, and the helix pitch for being left the spiral bar 9 of length is 100mm.
The mould 10 of this prestressing force mixed mud electric pole, including upper mold section 10.1 and female die 10.2, it is characterised in that on
Half module 10.1 and female die 10.2 are combined into the cylinder of one end closing, and there is threaded rod 10.2.1 at one end center of female die 10.2,
Threaded rod 10.2.1 one end is welded with opening on the end plate of first flange 10.2.2, first flange 10.2.2 and framework of steel reinforcement 1
Threaded hole 6 is drawn to be bolted to connection；The other end end plate 3 of framework of steel reinforcement 1 has been bolted second flange 10.2.4；The
Two flange 10.2.4 external diameters revolve more than the internal diameter after upper mold section 10.1 and the matched moulds of female die 10.2 on the threaded rod 10.2.1 other ends
There is pre-load nut 10.2.3.
The manufacture method of this prestressed concrete electric pole, it is characterised in that（1）By the end upsetting device upsetting of prestressing force cage bar
Head；（2）Spiral bar is welded with by automatic welding machine on the longitudinal direction of prestressing force cage bar；（3）Prestressing force cage bar is led to and is put
Put on the end plate of two ends in tensioning threaded hole, disposably prestressing force cage bar is rotated in the prestressing force cage bar holes to end plate；（4）
The framework of steel reinforcement for assembling and end plate are put in the female die；（5）By bolt by the tensioning threaded hole on end plate with
First flange connects；（6）The tensioning threaded hole on another end plate is connected with second flange by bolt；（7）Closed by loop wheel machine
Upper upper mold section；(8) pre-load nut is rotated by stretching machine, produces stretch-draw prestressing force, prestress control is in standard pull tension intensity
70%；(9) it is molded by centrifuge；（10）It is steam-cured using low-pressure saturated steam；（11）By stretching machine counter-rotating pretension
Nut carries out putting, and when putting, concrete crushing strength must reach 70% of the strength grade of concrete value more than design；
（12）By the loop wheel machine demoulding.
Claims (7)
1. a kind of prestressing force mixed mud electric pole, including framework of steel reinforcement and concrete, it is characterised in that the framework of steel reinforcement includes two
The end plate at end, the end plate is made up of steel plate ring and anchor disc, and anchor disc is provided with and is evenly distributed on opening on anchor disc circumference
Threaded hole is drawn, prestressing force cage bar holes are provided with anchor disc by tensioning threaded hole, prestressing force cage bar holes is communicated with tensioning threaded hole,
Prestressing force cage bar is longitudinally provided with prestressing force cage bar holes, around spiral bar is welded with prestressing force cage bar, in framework of steel reinforcement
Steel pipe is laterally embedded with, concrete is cast with framework of steel reinforcement, concrete is using P.o52.5 class g cements, medium coarse sand, rubble or broken
Crushed gravel is prepared, strength grade C60.
2. a kind of prestressing force mixed mud electric pole according to claim 1, it is characterised in that the prestressing force cage bar holes are heavy
Head bore.
3. a kind of prestressing force mixed mud electric pole according to claim 2, it is characterised in that the tensioning threaded hole has 10
Individual, a diameter of 20mm of tensioning threaded hole, prestressing force cage bar holes are 10, a diameter of 10mm of prestressing force cage bar holes, tensioning spiral
Hole distance of center circle prestressing force cage bar holes center of circle distance is 22mm.
4. a kind of prestressing force mixed mud electric pole according to claim 3, it is characterised in that the prestressing force cage bar is spiral
Rib steel rod, spiral ribs rod iron has 10 9.0, and spiral ribs rod iron adopts cold-drawn low-carbon alloy steel rod, and material is 30MnSi.
5. a kind of prestressing force mixed mud electric pole according to claim 4, it is characterised in that the spiral bar is low using cold-drawn
Carbon steel wire, is 50mm from spiral bar the initial segment 500mm inside spin spacing, is 50mm from spiral bar latter end 500mm inside spins spacing,
The helix pitch of the spiral bar of remaining length is 100mm.
6. a kind of mould of prestressing force mixed mud electric pole, including upper mold section and female die, it is characterised in that upper mold section and female die
The cylinder of one end closing is combined into, there is threaded rod at female die one end center, and threaded rod one end is welded with first flange, the first method
Orchid is bolted to connection with the tensioning threaded hole on the end plate of framework of steel reinforcement；Framework of steel reinforcement other end end plate passes through bolt
It is connected with second flange；Second flange external diameter is rotary with more than the internal diameter after upper mold section and female die matched moulds on the threaded rod other end
Pre-load nut.
7. a kind of manufacture method of prestressed concrete electric pole, it is characterised in that（1）By the end upsetting device upsetting of prestressing force cage bar
Head；（2）Spiral bar is welded with by automatic welding machine on the longitudinal direction of prestressing force cage bar；（3）Prestressing force cage bar is led to and is put
Put on the end plate of two ends in tensioning threaded hole, disposably prestressing force cage bar is rotated in the prestressing force cage bar holes to end plate；（4）
The framework of steel reinforcement for assembling and end plate are put in the female die；（5）By bolt by the tensioning threaded hole on end plate with
First flange connects；（6）The tensioning threaded hole on another end plate is connected with second flange by bolt；（7）Closed by loop wheel machine
Upper upper mold section；（8）Pre-load nut is rotated by stretching machine, stretch-draw prestressing force is produced, prestress control is in standard pull tension intensity
70%；(9) it is molded by centrifuge；（10）It is steam-cured using low-pressure saturated steam；（11）By stretching machine counter-rotating pretension
Nut carries out putting, and when putting, concrete crushing strength must reach 70% of the strength grade of concrete value more than design；
（12）By the loop wheel machine demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887434.7A CN106626045A (en) | 2016-10-12 | 2016-10-12 | Prestressed concrete pole as well as mold and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887434.7A CN106626045A (en) | 2016-10-12 | 2016-10-12 | Prestressed concrete pole as well as mold and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106626045A true CN106626045A (en) | 2017-05-10 |
Family
ID=58855224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610887434.7A Pending CN106626045A (en) | 2016-10-12 | 2016-10-12 | Prestressed concrete pole as well as mold and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106626045A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214873A (en) * | 2017-12-14 | 2018-06-29 | 泰州市春为强通用机械有限公司 | A kind of special annular prestressed reinforcing bar steel mould for electric pole |
| CN109531795A (en) * | 2018-11-23 | 2019-03-29 | 徐秀焕 | A kind of electric pole casting machine |
| CN110965839A (en) * | 2019-12-26 | 2020-04-07 | 国网福建省电力有限公司经济技术研究院 | Hybrid reinforced concrete pole and construction method |
| CN111576984A (en) * | 2020-05-12 | 2020-08-25 | 福建龙岩方圆水泥制品有限公司 | Manufacturing process of electric pole with strong stability |
| CN113172750A (en) * | 2021-04-12 | 2021-07-27 | 建华建材（中国）有限公司 | Tensioning device and tensioning process for enhanced precast pile |
| CN114396192A (en) * | 2021-12-13 | 2022-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Plug-in type concrete-filled steel tube column base for large power transmission tower and construction method thereof |
| CN116733171A (en) * | 2023-08-09 | 2023-09-12 | 唐山华通水泥制品有限公司 | Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same |
| CN116766380A (en) * | 2023-08-21 | 2023-09-19 | 唐山华通水泥制品有限公司 | Concrete electric pole production process, electric pole framework and electric pole |
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| JP2002355808A (en) * | 2001-03-28 | 2002-12-10 | Chichibu Concrete Kogyo Kk | Method for manufacturing reinforced concrete pipe |
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| CN101718153A (en) * | 2009-08-18 | 2010-06-02 | 四川省富侨工业有限公司 | Partially prestressed concrete electric pole and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214873A (en) * | 2017-12-14 | 2018-06-29 | 泰州市春为强通用机械有限公司 | A kind of special annular prestressed reinforcing bar steel mould for electric pole |
| CN109531795A (en) * | 2018-11-23 | 2019-03-29 | 徐秀焕 | A kind of electric pole casting machine |
| CN110965839A (en) * | 2019-12-26 | 2020-04-07 | 国网福建省电力有限公司经济技术研究院 | Hybrid reinforced concrete pole and construction method |
| CN111576984A (en) * | 2020-05-12 | 2020-08-25 | 福建龙岩方圆水泥制品有限公司 | Manufacturing process of electric pole with strong stability |
| CN113172750A (en) * | 2021-04-12 | 2021-07-27 | 建华建材（中国）有限公司 | Tensioning device and tensioning process for enhanced precast pile |
| CN114396192A (en) * | 2021-12-13 | 2022-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Plug-in type concrete-filled steel tube column base for large power transmission tower and construction method thereof |
| CN114396192B (en) * | 2021-12-13 | 2024-03-15 | 中国能源建设集团安徽省电力设计院有限公司 | Inserted steel tube concrete column base for large power transmission tower and construction method thereof |
| CN116733171A (en) * | 2023-08-09 | 2023-09-12 | 唐山华通水泥制品有限公司 | Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same |
| CN116733171B (en) * | 2023-08-09 | 2023-10-20 | 唐山华通水泥制品有限公司 | Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same |
| CN116766380A (en) * | 2023-08-21 | 2023-09-19 | 唐山华通水泥制品有限公司 | Concrete electric pole production process, electric pole framework and electric pole |
| CN116766380B (en) * | 2023-08-21 | 2023-10-27 | 唐山华通水泥制品有限公司 | Concrete electric pole production process, electric pole framework and electric pole |
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Application publication date: 20170510 |
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