CN215107824U - Concrete pole with up-down segmented structure - Google Patents
Concrete pole with up-down segmented structure Download PDFInfo
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- CN215107824U CN215107824U CN202022914967.4U CN202022914967U CN215107824U CN 215107824 U CN215107824 U CN 215107824U CN 202022914967 U CN202022914967 U CN 202022914967U CN 215107824 U CN215107824 U CN 215107824U
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Abstract
The utility model relates to an upper and lower segmentation structure concrete pole, including equalling divide the concrete pole for upper segment and hypomere, the concrete pole upper segment is non-prestressed reinforcement, the hypomere is partial stress reinforcement, the upper segment sets firmly as an organic wholely with the hypomere, be provided with prestressed reinforcement and non-prestressed reinforcement in the hypomere concrete pole, both all set up along concrete pole week portion interval, the lower extreme all anchors through the anchor gold utensil on the hypomere concrete pole, wherein the mixed reinforcement pole of hypomere partial prestressing improves pole rigidity, the crack resistance, alleviate pole weight and cost simultaneously, upper segment pole non-prestressed reinforcement improves pole ductility, avoid pole upper portion brittle fracture under the temporary load effect such as broken string and local strong wind, structure safe and reliable, bearing capacity is big, wide application is worth.
Description
Technical Field
The utility model relates to an electric power engineering field, concretely relates to upper and lower segmentation structure concrete pole.
Background
The concrete pole is widely applied to the fields of power transmission and transformation engineering, railway electrification engineering and communication due to the advantages of convenient operation and maintenance, steel saving and the like, and is particularly widely applied to areas with good plains and transportation conditions in China. The total electric pole production of the electric pole enterprises in the whole country in the last half of 2017 is 823 ten thousand, the synchronous increase is 17.2% compared with 2016, and the concrete electric pole has a very wide market space. However, in the field of electric poles, prestressed electric poles and partially prestressed electric poles generate a prestressed compressive stress on concrete due to the mutual engagement and cooperative work between prestressed tendons and the concrete, so that the electric poles are in a brittle failure form, and are easy to have brittle pole breakage and the like, while non-prestressed electric poles are poor in rigidity and crack resistance.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of prior art, the utility model aims to solve the technical problem that an upper and lower segmentation concrete pole is provided, not only rational in infrastructure, moreover on the basis of practicing thrift the cost, solve traditional prestressing force pole and easily appear brittle failure form, and not prestressing force pole rigidity, the relatively poor problem of anti-crack degree.
In order to solve the technical problem, the technical scheme of the utility model is that: a concrete electric pole with an up-down segmented structure comprises a concrete electric pole which is uniformly divided into an upper section and a lower section, wherein the upper section of the concrete electric pole is provided with non-prestressed reinforcing steel bars, the lower section of the concrete electric pole is provided with partial-stress reinforcing steel bars, the upper section and the lower section are fixedly integrated, prestressed reinforcing steel bars and non-prestressed reinforcing steel bars are arranged in the lower section of the concrete electric pole and are arranged at intervals along the periphery of the concrete electric pole, and the upper end and the lower end of the lower section of the concrete electric pole are anchored by anchoring hardware fittings; only non-prestressed reinforcements are arranged in the upper section concrete pole; the prestressed steel bars and the non-prestressed steel bars are all provided with a plurality of non-prestressed steel bars, wherein the non-prestressed steel bars vertically extend upwards to extend through the anchoring hardware fittings to enter the concrete pole.
Furthermore, the anchoring hardware fittings are all in a circular ring shape, the two ends of the prestressed reinforcement are respectively vertically penetrated with the anchoring hardware fittings and tensioned and pre-tightened, and the anchoring hardware fittings are circular ring-shaped small-diameter high-strength anchorage devices for steel wires.
Furthermore, anchor gold utensil is worn to establish by the prestressing steel upper end through cold-heading pier nose, and the prestressing steel lower extreme is fixed through the oblique angle cotter pin after the tensioning, guarantees that prestressing force evenly exerts at lower section concrete pole both ends through annular ground tackle.
Furthermore, the prestressed steel bars in the lower section of concrete electric pole are stress-relief steel wires or steel stranded wires; the non-prestressed steel bars in the upper and lower sections of the concrete pole are HRB400 or HRB500 grade hot rolled steel bars.
Further, the specific preparation steps comprise: s1: binding an anchoring hardware fitting, a fixed end anchor plate, prestressed reinforcements and common reinforcements together by a reinforcement cage; s2: binding a reinforcement cage, putting the reinforcement cage into a concrete pole mold, performing cold heading on one end of a prestressed tendon, performing prestressed tensioning on the other end of the prestressed tendon, and configuring and pouring concrete on the pole to integrate the upper section and the lower section; s3: closing the concrete pole mold and performing centrifugal molding; s4: and when the strength of the concrete is not lower than 75% of the design strength, the prestressed reinforcement anchors at the bottom end are unfastened, and the tensile force is released.
Compared with the prior art, the utility model discloses following beneficial effect has: through divide into two parts about the concrete pole, the hypomere adopts partial prestressing force arrangement of reinforcement, the upper segment adopts non-prestressing force arrangement of reinforcement, it is as an organic whole to synthesize partial prestressing force pole and non-prestressing force pole advantage, the mixed arrangement of reinforcement pole of hypomere partial prestressing force improves pole rigidity, the crack resistance, alleviate pole weight and cost simultaneously, upper segment pole non-prestressing reinforcement improves pole ductility, avoid because of the brittle fracture of pole upper portion under the temporary load effect such as broken string and local strong wind, thereby wholly improve pole structure safe and reliable, the bearing capacity moment of flexure is big, and reduce pole cost, and the wide application is worth.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a lower reinforcement section in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an upper reinforcement section in an embodiment of the present invention;
fig. 4 is a schematic view of an installation section of a prestressed reinforcement in an embodiment of the present invention;
fig. 5 is an end view of the lower-segment top anchor fitting in the embodiment of the present invention;
fig. 6 is the embodiment of the present invention, a schematic view of the lower section bottom anchoring hardware end surface.
In the figure: 1-upper segment, 2-lower segment, 3-concrete pole, 4-prestressed reinforcement, 5-non-prestressed reinforcement, 6-anchoring hardware fitting, 7-oblique angle pin bolt, 8-spiral stirrup, 9-cold heading pier head and 10-concrete.
Detailed Description
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 6, an up-down segmented structure concrete pole comprises a concrete pole 3 which is divided into an upper section 1 and a lower section 2, wherein the upper section of the concrete pole is a non-prestressed reinforcement and the lower section is a partial-stress reinforcement, the upper section and the lower section are fixedly integrated, a prestressed reinforcement 4 and a non-prestressed reinforcement 5 are arranged in the lower section of the concrete pole and are arranged at intervals along the periphery of the concrete pole, and the upper end and the lower end of the lower section of the concrete pole are anchored by an anchoring hardware fitting 6; only non-prestressed reinforcements are arranged in the upper section of the concrete pole, and the non-prestressed reinforcements are also uniformly distributed along the periphery of the upper section of the concrete pole; this prestressing steel and non-prestressing steel all are provided with a plurality ofly, and wherein the equal vertical upwards extension of non-prestressing steel extends the anchor gold utensil and gets into in the concrete pole, and non-prestressing steel lower extreme extends into the hypomere promptly, and the upper end extends into the upper end, concatenates so that link firmly.
The embodiment of the utility model provides an in, the anchor gold utensil all is the ring form, and prestressing steel both ends are vertical respectively to wear to establish anchor gold utensil and stretch-draw pretension, and the anchor gold utensil is ring form minor diameter anchor for the steel wire that excels in.
The embodiment of the utility model provides an in, prestressed reinforcement upper end is worn to establish anchor gold utensil back and is handled through the cold-heading pier nose, makes prestressed reinforcement end department thicken, and it is fixed through oblique angle cotter 7 after the prestressed reinforcement lower extreme is through stretch-draw, guarantees that prestressing force evenly applys at lower section concrete pole both ends through annular ground tackle, and wherein the device to prestressed reinforcement stretch-draw is general device, does not do too much here and describe repeatedly.
In the embodiment of the utility model, the prestressed steel bars in the lower section concrete pole are stress-relief steel wires or steel stranded wires; the non-prestressed steel bars in the upper and lower sections of the concrete pole are HRB400 or HRB500 grade hot rolled steel bars.
In the embodiment of the present invention, the specific preparation steps include: s1: the anchoring hardware fitting, the fixed end anchor plate, the prestressed steel bars and the non-prestressed steel bars are bound together by a steel reinforcement cage, and the prestressed steel bars and the non-prestressed steel bars are coaxially bound on the steel reinforcement cage (the spiral stirrups 8); s2: binding a reinforcement cage, putting the reinforcement cage into a concrete pole mold, performing cold heading on one end of a prestressed tendon, performing prestressed tensioning on the other end of the prestressed tendon, and configuring and pouring concrete 10 on the pole to integrate the upper section and the lower section; s3: closing the concrete pole mold and performing centrifugal molding; s4: treat that concrete strength is not less than 75% of design intensity, untie bottom prestressing force reinforcing anchor utensil, release pulling force, accomplish the preparation, through divide into two parts from top to bottom with the concrete pole, the hypomere adopts partial prestressing force arrangement of reinforcement, the upper segment adopts non-prestressing force arrangement of reinforcement, it is as an organic whole to synthesize partial prestressing force pole and non-prestressing force pole advantage, the mixed arrangement of reinforcement pole of hypomere partial prestressing force improves pole rigidity, the crack resistance, alleviate pole weight and cost simultaneously, upper segment pole non-prestressing force reinforcing improves pole ductility, avoid because of the broken string and the brittle fracture of pole upper portion under the temporary load effect such as local strong wind, thereby wholly improve pole structure safe and reliable, the bearing capacity moment of flexure is big, and reduce pole cost, wide application value has.
The present invention is not limited to the above preferred embodiments, and any one can obtain the concrete poles with the upper and lower segmented structures in various forms. All the equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
Claims (4)
1. The utility model provides an upper and lower segmentation concrete pole which characterized in that: the concrete pole comprises a concrete pole which is divided into an upper section and a lower section, wherein the upper section of the concrete pole is a non-prestressed reinforcement, the lower section of the concrete pole is a partial-stress reinforcement, the upper section and the lower section are fixedly integrated, prestressed reinforcements and non-prestressed reinforcements are arranged in the lower section of the concrete pole and are arranged at intervals along the periphery of the concrete pole, and the upper end and the lower end of the lower section of the concrete pole are anchored by an anchoring hardware fitting; only non-prestressed reinforcement is arranged in the upper section concrete pole.
2. A concrete pole with an up-down segmented structure as set forth in claim 1, wherein: the anchoring hardware fittings are all in a circular ring shape, and the two ends of the prestressed reinforcement vertically penetrate through the anchoring hardware fittings respectively and are tensioned and pre-tightened.
3. A concrete pole of an up-and-down segmented structure as set forth in claim 2, wherein: the upper end of the prestressed reinforcement penetrates through the anchoring hardware fitting and passes through the cold heading pier head, and the lower end of the prestressed reinforcement is fixed through the oblique angle pin bolt after being tensioned.
4. A concrete pole with an up-down segmented structure as set forth in claim 1, wherein: the prestressed steel bars in the lower section of concrete electric pole are stress-relieving steel wires or steel stranded wires; the non-prestressed steel bars in the upper and lower sections of the concrete pole are HRB400 or HRB500 grade hot rolled steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022914967.4U CN215107824U (en) | 2020-12-08 | 2020-12-08 | Concrete pole with up-down segmented structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022914967.4U CN215107824U (en) | 2020-12-08 | 2020-12-08 | Concrete pole with up-down segmented structure |
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| CN215107824U true CN215107824U (en) | 2021-12-10 |
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| CN202022914967.4U Active CN215107824U (en) | 2020-12-08 | 2020-12-08 | Concrete pole with up-down segmented structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412148A (en) * | 2020-12-08 | 2021-02-26 | 国网福建省电力有限公司经济技术研究院 | Concrete pole with up-down segmented structure and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412148A (en) * | 2020-12-08 | 2021-02-26 | 国网福建省电力有限公司经济技术研究院 | Concrete pole with up-down segmented structure and manufacturing method thereof |
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