CN214657182U - Prestressed concrete pile foundation for power transmission line tower - Google Patents
Prestressed concrete pile foundation for power transmission line tower Download PDFInfo
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- CN214657182U CN214657182U CN202120294604.7U CN202120294604U CN214657182U CN 214657182 U CN214657182 U CN 214657182U CN 202120294604 U CN202120294604 U CN 202120294604U CN 214657182 U CN214657182 U CN 214657182U
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- reinforcement cage
- pile foundation
- pile body
- transmission line
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Abstract
The utility model discloses a prestressed concrete pile foundation for transmission line towers, which comprises a pile body and a connecting flange, wherein the connecting flange is fixedly arranged at the top of the pile body, and a discharge channel is arranged in the middle of the pile body; the pile body comprises a steel reinforcement cage and a concrete layer, the steel reinforcement cage comprises a plurality of main reinforcements and a plurality of inner stirrups, meanwhile, a plurality of auxiliary reinforcements are arranged on the inner side of the steel reinforcement cage, and the auxiliary reinforcements are connected with the steel reinforcement cage through connecting reinforcements; meanwhile, the outer surface of the auxiliary rib is also wrapped with a limiting plate for pouring concrete; compared with the prior art, the limiting plate not only strengthens the structural strength of the pile foundation in the axial direction, but also avoids the pile foundation from being bent or even broken under the action of horizontal tension; meanwhile, the limiting plates and the soil layers in the material discharging channel are abutted against each other for limiting, so that the pile foundation can be effectively prevented from rotating under the action of external force, the connecting bolts at the connecting flanges are prevented from receiving a large shearing force, and the service life of the whole set of equipment is prolonged.
Description
Technical Field
The utility model relates to a building element equipment technical field, concretely relates to transmission line is prestressed concrete pile foundation for shaft tower.
Background
At present, a cable tower is widely applied, in order to ensure the structural stability of the cable tower, a pile foundation which is deep into a soil layer is generally embedded into a mounting point through a pile driver, but the cable tower is subjected to larger horizontal tension in the actual working process, the pile foundation is generally a thin-wall structure, the structural strength of the pile foundation is limited, and therefore the pile foundation is easy to break, and the stable use of the pile foundation is influenced; meanwhile, in the prior art, most of pile foundations are of a circular structure, so that circumferential rotation is easy to occur under the action of external force, and the structural stability of the whole tower body is affected.
Meanwhile, in the prior art, a pile foundation is generally subjected to hot galvanizing or an asphalt protective layer to prevent the foundation from rusting, but the technical measures are very easy to lose effectiveness due to scratch of external sharp objects in the installation process; meanwhile, the requirement on the soil quality of a mounting point is high, the adaptability to the environment is weak, and the service life is limited.
SUMMERY OF THE UTILITY MODEL
The defect that structural strength exists is low among the prior art, the utility model discloses a transmission line is prestressed concrete pile foundation for shaft tower, the utility model discloses can effectively improve the structural strength of pile foundation, avoid the pile foundation fracture or topple under the pulling force effect, it still has easy installation simultaneously, advantages such as installation back instability is strong.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a prestressed concrete pile foundation for a power transmission line tower comprises a pile body and a connecting flange which are connected with each other, wherein the pile body comprises a reinforcement cage and a concrete layer wrapped on the surface of the reinforcement cage; the reinforcement cage comprises a plurality of main reinforcements and a plurality of inner stirrups, wherein the main reinforcements are uniformly arranged around the inner stirrups and are welded and connected with the inner stirrups; a plurality of auxiliary ribs are uniformly arranged on the inner side of the reinforcement cage, the auxiliary ribs are respectively connected with the inner stirrups or the main ribs through connecting ribs, and limiting plates formed by concrete pouring are wrapped on the outer layers of the auxiliary ribs; and a discharge channel is also arranged on the pile body.
Preferably, the outer surface of the steel reinforcement cage is further provided with an outer stirrup, and the outer stirrup is spirally wound outside the steel reinforcement cage and fixedly connected with each main reinforcement respectively.
Preferably, still evenly be provided with a plurality of fixed plates in the steel reinforcement cage, be provided with a plurality of connecting holes with main muscle one-to-one on the fixed plate.
Preferably, the number of the limiting plates is 4-6, the limiting plates are centrosymmetric about the axis of the pile body, and the cross sections of the limiting plates are triangular.
Preferably, the cross section of the limiting plate is in a cross shape, and two sides of the limiting plate are integrally connected with the inner surface of the pile body respectively.
Preferably, the ratio of the diameter of the main reinforcement to the wall thickness of the pile body is (1-2): 5.
preferably, the top of the steel reinforcement cage is fixedly connected with a steel plate ring, and the connecting flange is fixedly connected with the steel plate ring.
Preferably, the bottom of the pile body is also provided with a conical guide surface which is contracted inwards.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model comprises a pile body and a connecting flange, wherein the connecting flange is fixedly arranged at the top of the pile body, and a discharge channel is arranged in the middle of the pile body; the pile body comprises a steel reinforcement cage and a concrete layer, the steel reinforcement cage comprises a plurality of main reinforcements and a plurality of inner stirrups, meanwhile, a plurality of auxiliary reinforcements are arranged on the inner side of the steel reinforcement cage, and the auxiliary reinforcements are connected with the steel reinforcement cage through connecting reinforcements; meanwhile, the outer surface of the auxiliary rib is also wrapped with a limiting plate for pouring concrete;
the utility model adopts an integral concrete structure, compared with the traditional steel base, the utility model has good adaptability to the soil with different pH values, has strong corrosion resistance, and can effectively prolong the service time of the pile foundation;
secondly, the utility model is provided with a discharge channel in the middle of the pile foundation, which can effectively reduce the resistance of the soil layer when the pile driver is installed, thus not only improving the installation efficiency, but also avoiding the damage of the pile body in the installation process due to the overlarge resistance, and improving the installation quality;
the utility model discloses still be provided with the limiting plate in discharge passageway, the limiting plate plays the effect of strengthening rib on the one hand, can effectively improve the axial strength of pile body to avoid the pile foundation to take place to buckle under the effect of horizontal tension, even fracture; on the other hand, the limiting plate leans on spacingly with the soil layer in the discharge passageway each other, compares with traditional circular structure, and it can effectively avoid the pile foundation to take place rotatoryly under the exogenic action to avoid the connecting bolt of flange department to receive great shear force effect, prolong the life of whole equipment.
2. The utility model discloses still be provided with outer stirrup at steel reinforcement cage's surface, outer stirrup coils in the steel reinforcement cage outside with the heliciform, links to each other with main muscle is fixed simultaneously, through the cooperation of outer stirrup and interior stirrup, both sides are fixed with main muscle including outer to improve whole steel reinforcement cage's structural strength, integral outer stirrup not only can improve the structural strength who connects simultaneously, and helical structure can simplify steel reinforcement cage's the manufacture process as far as possible simultaneously, improves work efficiency.
3. The utility model discloses a evenly be provided with a plurality of fixed plates on the steel reinforcement cage, be provided with a plurality of connecting holes with main muscle one-to-one on the fixed plate, on the one hand fix each main muscle through the fixed plate, guarantee the structural stability of whole steel reinforcement cage; on the other hand, the rapid and accurate rib arrangement of the main ribs can be realized, so that the bundling efficiency of the reinforcement cage is improved.
4. The utility model discloses a limiting plate is provided with 4-6 altogether, and the limiting plate is central symmetry about the axis of pile body, and the transversal triangle-shaped setting of personally submitting of limiting plate, and it can improve the ability of breaking ground of limiting plate when taking into account structural strength to reduce the installation resistance, improve the installation effectiveness.
5. The utility model discloses a limiting plate is the cross setting, and it links to each other with pile body an organic whole, and the both sides of limiting plate link to each other with pile body an organic whole, and it can provide the support for the limiting plate to further improve the structural strength of pile body, avoid the pile body to break.
6. The ratio of the diameter of the main reinforcement to the wall thickness of the pile body of the utility model is (1-2): 5, it is when guaranteeing pile body structural strength, not only can reduce the quantity of steel, reduces pile foundation's cost, can guarantee simultaneously that the concrete layer thickness on steel reinforcement cage's surface is qualified to form effective protection to inside reinforcing bar, prolong pile foundation's life.
7. The utility model discloses steel reinforcement cage top fixedly connected with steel sheet circle, flange links to each other with the steel sheet circle is fixed, can improve the area of connection between flange and the pile body through the steel sheet circle to improve flange's joint strength.
8. The utility model discloses still be provided with the toper guide face to the inboard shrink in pile body bottom, soil layer resistance when can effectively reducing the installation of pile foundation through the guide face not only can improve the installation effectiveness, avoids causing the pile body damage in the installation because of the resistance is too big simultaneously, improves the installation quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the structure of the reinforcement cage of the present invention;
fig. 4 is a schematic top view of embodiment 2 of the present invention;
fig. 5 is a schematic structural view of a reinforcement cage according to embodiment 2 of the present invention;
FIG. 6 is a schematic diagram of the fixing plate structure of the present invention;
reference numerals: 1. pile body, 2, flange, 3, steel reinforcement cage, 4, concrete layer, 5, limiting plate, 6, discharge material passageway, 7, fixed plate, 8, steel sheet circle, 9, guide face, 31, main muscle, 32, interior stirrup, 33, supplementary muscle, 34, splice bar, 35, outer stirrup, 71, connecting hole.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following embodiments.
Embodiment mode 1
This embodiment is regarded as the utility model discloses a prestressed concrete pile foundation for transmission line tower, and the concrete structure is as shown in fig. 1 to fig. 3, including pile body 1 and flange 2, pile body 1 includes steel reinforcement cage 3 and wraps up in concrete layer 4 of steel reinforcement cage 3 surface, steel reinforcement cage 3 includes a plurality of main muscle 31 and a plurality of interior stirrup 32, and main muscle 31 encircles evenly sets up around interior stirrup 32, and links to each other with interior stirrup 32 welding, still is provided with outer stirrup 34 in the outside of main muscle 31 simultaneously, and outer stirrup 34 adopts integral dish circle preparation, and it twines in the outside of main muscle 31 with the heliciform to pass through welded mode fixed connection with each main muscle 31 respectively; according to the requirement, the ratio of the diameter of the main reinforcement 31 to the wall thickness of the pile body 1 is (1-2): 5, so as to ensure that the surface of the main reinforcement 31 is wrapped with concrete with enough thickness;
a plurality of auxiliary ribs 33 are uniformly arranged on the inner side of the steel reinforcement cage 3, the auxiliary ribs 33 are fixedly connected with the main ribs 31 or the inner hooping 32 of the steel reinforcement cage 3 through connecting ribs 35 respectively, and meanwhile, concrete layers are wrapped on the outer surfaces of the auxiliary ribs 33, so that limiting plates 5 with triangular cross sections are formed, 4-6 limiting plates 5 are arranged according to needs, and the limiting plates 5 are arranged in a central symmetry mode about the axis of the pile body 1;
the top of steel reinforcement cage 3 still is connected with steel sheet circle 8, and concrete placement accomplishes the back, and steel sheet circle 8 is embedded into concrete layer 4, links to each other with flange 2 is fixed with welded mode at steel sheet circle 8's top simultaneously, still is provided with the toper guide face 9 to the shrink of pile body 1 axis one side in the bottom of pile body 1 simultaneously, and the discharge passage 6 that the soil horizon passes through is supplied at pile body 1 middle part.
As another preferred embodiment of the present invention, the present invention discloses a prestressed concrete pile foundation for a power transmission line tower, the concrete structure is as shown in fig. 4 to fig. 6, and the pile body 1 and the connecting flange 2 are connected to each other, the pile body 1 includes a reinforcement cage 3 and a concrete layer 4 wrapped on the outer surface of the reinforcement cage 3, the reinforcement cage 3 includes a plurality of main reinforcements 31 and a plurality of inner stirrups 32, the main reinforcements 31 are uniformly arranged around the inner stirrups 32 and are welded to the inner stirrups 32, and the reinforcement cage 3 further includes a plurality of fixing plates 7, the fixing plates 7 are arranged in parallel to the inner stirrups 32, and connecting holes 71 corresponding to the main reinforcements 31 one-to-one are formed in the fixing plates 71, and the main reinforcements 31 are inserted into the connecting holes 71, so as to realize rapid reinforcement arrangement of the main reinforcements 31; meanwhile, a discharge channel 6 is arranged in the middle of the pile body 1, a limiting plate 5 is arranged in the discharge channel 6, the cross section of the limiting plate 5 is cross-shaped, and two sides of the limiting plate 5 and the inner surface of the pile body 1 are integrally formed.
The utility model adopts an integral concrete structure, compared with the traditional steel base, the utility model has good adaptability to the soil with different pH values, has strong corrosion resistance, and can effectively prolong the service time of the pile foundation;
secondly, the utility model is provided with a discharge channel in the middle of the pile foundation, which can effectively reduce the resistance of the soil layer when the pile driver is installed, thus not only improving the installation efficiency, but also avoiding the damage of the pile body in the installation process due to the overlarge resistance, and improving the installation quality;
the utility model discloses still be provided with the limiting plate in discharge passageway, the limiting plate plays the effect of strengthening rib on the one hand, can effectively improve the axial strength of pile body to avoid the pile foundation to take place to buckle under the effect of horizontal tension, even fracture; on the other hand, the limiting plate leans on spacingly with the soil layer in the discharge passageway each other, compares with traditional circular structure, and it can effectively avoid the pile foundation to take place rotatoryly under the exogenic action to avoid the connecting bolt of flange department to receive great shear force effect, prolong the life of whole equipment.
Claims (8)
1. A prestressed concrete pile foundation for a power transmission line tower comprises a pile body (1) and a connecting flange (2) which are connected with each other, wherein the pile body (1) comprises a reinforcement cage (3) and a concrete layer (4) wrapped on the surface of the reinforcement cage (3); the method is characterized in that: the reinforcement cage (3) comprises a plurality of main reinforcements (31) and a plurality of inner stirrups (32), wherein the main reinforcements (31) surround the peripheries of the inner stirrups (32) and are uniformly arranged and are welded with the inner stirrups (32); a plurality of auxiliary ribs (33) are uniformly arranged on the inner side of the reinforcement cage (3), the auxiliary ribs (33) are respectively connected with the inner stirrups (32) or the main ribs (31) through connecting ribs (34), and the outer layers of the auxiliary ribs (33) are wrapped with limiting plates (5) formed by pouring concrete; the pile body (1) is also provided with a discharge channel (6).
2. The prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: the outer surface of the steel reinforcement cage (3) is further provided with an outer stirrup (35), and the outer stirrup (35) is wound on the outer side of the steel reinforcement cage (3) in a spiral mode and is fixedly connected with each main reinforcement (31) respectively.
3. The prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: still evenly be provided with a plurality of fixed plates (7) in steel reinforcement cage (3), be provided with a plurality of connecting holes (71) with main muscle (31) one-to-one on fixed plate (7).
4. The prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: the number of the limiting plates (5) is 4-6, the limiting plates (5) are centrosymmetric about the axis of the pile body (1), and the cross sections of the limiting plates (5) are triangular.
5. The prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: the cross section of the limiting plate (5) is in a cross shape, and two sides of the limiting plate are respectively connected with the inner surface of the pile body (1) integrally.
6. The prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: the ratio of the diameter of the main reinforcement (31) to the wall thickness of the pile body (1) is (1-2): 5.
7. the prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: the top of the steel reinforcement cage (3) is fixedly connected with a steel plate ring (8), and the connecting flange (2) is fixedly connected with the steel plate ring (8).
8. The prestressed concrete pile foundation for the power transmission line tower according to claim 1, characterized in that: the bottom of the pile body (1) is also provided with a conical guide surface (9) which shrinks inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120294604.7U CN214657182U (en) | 2021-02-02 | 2021-02-02 | Prestressed concrete pile foundation for power transmission line tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120294604.7U CN214657182U (en) | 2021-02-02 | 2021-02-02 | Prestressed concrete pile foundation for power transmission line tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214657182U true CN214657182U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120294604.7U Active CN214657182U (en) | 2021-02-02 | 2021-02-02 | Prestressed concrete pile foundation for power transmission line tower |
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| Country | Link |
|---|---|
| CN (1) | CN214657182U (en) |
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2021
- 2021-02-02 CN CN202120294604.7U patent/CN214657182U/en active Active
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