CN210151772U - Precast concrete assembled foundation for power transmission line - Google Patents
Precast concrete assembled foundation for power transmission line Download PDFInfo
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- CN210151772U CN210151772U CN201822256689.0U CN201822256689U CN210151772U CN 210151772 U CN210151772 U CN 210151772U CN 201822256689 U CN201822256689 U CN 201822256689U CN 210151772 U CN210151772 U CN 210151772U
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Abstract
The utility model relates to a transmission line precast concrete assembled basis, the utility model relates to a transmission tower field, concrete assembled basis includes: the steel pipe is connected with the flange, the flange is respectively connected with the steel pipe and the first precast concrete component, and the first precast concrete component is respectively connected with the flange, the circular precast concrete rod and the second precast concrete component. The utility model provides a concrete assembled basis carries out the cordwood system concatenation with second precast concrete component, circular precast concrete pole and first precast concrete component, is connected first precast concrete component, second precast concrete component and top steel pipe through crab-bolt, bolt. The problem of among the prior art transmission line shaft tower basis connecting bolt quantity great, the assembling is relatively poor is solved.
Description
Technical Field
The utility model relates to a transmission line field, especially a transmission line precast concrete assembled basis.
Background
A general power transmission line includes: the tower structure of the power transmission line is a high-rise structure which is used for supporting and overhead conducting wires, lightning wires and other accessories, so that the conducting wires and the conducting wires, the conducting wires and the towers, the conducting wires and the lightning wires and the conducting wires keep a specified safety distance to the ground or a cross spanning object, the tower foundation of the power transmission line is an underground part of the tower, and the construction of the foundation is one of three basic procedures of the engineering construction of the power transmission line.
The power transmission line tower foundation bears the dead weight, wind load, icing load, construction and installation load transmitted by the tower and the ground wire system, unbalanced tension in the operation of the power transmission line, broken line tension load in an accident state and the like, and transmits the load borne by the power transmission line tower foundation to surrounding foundation soil, so that the tower is ensured not to sink, topple and deform in the operation.
In transmission line shaft tower foundation construction, traditional concrete slab formula assembly basis, its bottom lath adopts a large amount of bolted connection with upper portion concrete prefabricated component, bolt quantity is big more, the basic assemblability is just worse more, thereby lead to the construction degree of difficulty to increase, in addition, the crossbeam upper portion and the lower part of traditional concrete slab formula assembly basis all need the arrangement of reinforcement in order to satisfy the atress requirement, this makes monolithic prefabricated component's weight great, increase the transportation and hoist and mount degree of difficulty, be not convenient for mechanized construction, and, the bottom rectangular lath edges and corners of traditional concrete slab formula assembly basis are clear, often take place the condition of colliding with the damage in transportation and the construction installation process, it is inconvenient to transport, also not adapt to the requirement of mechanized construction.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a transmission line precast concrete assembled basis has solved the connecting bolt on transmission line shaft tower basis in the prior art in large quantity, and the assemblability is relatively poor, and monolithic prefabricated component's weight is great, and the transportation is inconvenient, often takes place to collide with the problem of damage in transportation and the construction installation.
The embodiment of the utility model provides a transmission line precast concrete assembled basis, concrete assembled basis includes: the prefabricated concrete comprises a steel pipe, a flange, a first prefabricated concrete component, a round prefabricated concrete rod and a second prefabricated concrete component;
the steel pipe is connected with the flange, is of a hollow structure and is perpendicular to the flange, and is the top of the concrete fabricated foundation;
the flange is respectively connected with the steel pipe and the first precast concrete member, and a first preset number of bolt holes are formed in the flange around the joint of the steel pipe;
the first precast concrete component is respectively connected with the flange, the round precast concrete rod and the second precast concrete component, the upper part of the first precast concrete component is of an isosceles trapezoid structure, the connecting part of the lower part of the first precast concrete component and the second precast concrete component is pre-provided with evenly distributed semicircular apertures, and bolt holes with the same size and number are formed in positions corresponding to the bolt holes;
the second precast concrete component is respectively connected with the first precast concrete component and the round precast concrete rod, the upper part of the second precast concrete component is the same as the lower part of the first precast concrete component in shape, corresponding to the semicircular aperture of the lower part of the first precast concrete component, corresponding semicircular apertures are prefabricated, bolt holes with the same size and number are formed corresponding to the bolt holes, and the second precast concrete component is the bottom of the concrete assembly type foundation;
the round precast concrete rods are respectively and vertically connected with the first precast concrete component and the second precast concrete component, the diameter of each round precast concrete rod is equal to that of a round hole formed by combining the second precast concrete component and the first precast concrete component, and anchor bolt holes with a second preset number are formed in the round precast concrete rods close to the first precast concrete component.
Optionally, the steel pipe and the flange are welded, a third preset number of reinforcing steel bars are welded around the joint of the steel pipe, and the reinforcing steel bars are used for reinforcing the welding strength of the steel pipe and the flange.
Optionally, the steel pipe, the first precast concrete unit, and the second precast concrete unit are connected and reinforced by bolts through the bolt holes.
Optionally, the first precast concrete unit includes six single-type units with upper portions of right-angled trapezoid structures and lower portions of evenly distributed semicircular apertures, the single-type units are combined pairwise symmetrically to form an isosceles trapezoid upper portion, the lower portions of the single-type units are prefabricated with evenly distributed semicircular apertures, the combined units are arranged in a longitudinal alignment manner to form the first precast concrete unit, and gaps are reserved between the combined units and used for filling concrete.
Optionally, the second precast concrete unit includes six fitting units, the upper parts of which have the same shape as the lower part of the single-type unit, and the fitting units are combined into the second precast concrete unit in the same manner as the first precast concrete unit is combined, so that the second precast concrete unit and the first precast concrete unit form a circular aperture with the diameter equal to that of the circular precast concrete rod after being combined.
Optionally, a first number of anchor bolt holes are formed in the round precast concrete rod corresponding to the gap, a second number of anchor bolt holes are formed in the round precast concrete rod corresponding to the two side edges of the first precast concrete member, and the sum of the first number and the second number is the second preset number.
Optionally, the steel pipe hollow part is used for inserting the angle iron main material, and the steel pipe hollow part is used as a concrete pouring template inserted into the angle iron main material.
Optionally, the first precast concrete unit is reinforced at the top and the second precast concrete unit is reinforced at the bottom.
Optionally, the circular precast concrete pole passes through for the anchor bolt hole crab-bolt and ground bed course anchor, circular precast concrete pole is used for, fixes the position behind first precast concrete component with the combination of second precast concrete component, the ground bed course does below the concrete assembled basis, for the convenience of basic concrete construction, also for the one deck plain concrete that protection basic concrete reinforcing bar and laid.
Compared with the prior art, the utility model provides a pair of transmission line precast concrete assembled basis will place second precast concrete component, circular precast concrete pole and the first precast concrete component in the bottom, carries out the cordwood system concatenation, inserts the crab-bolt anchor through reserving the anchor bolt hole, is connected first precast concrete component, second precast concrete component and top steel pipe through the bolt. The problem of among the prior art connecting bolt quantity of transmission line shaft tower basis great, but the assembling is relatively poor, often take place to collide with in transportation and the construction installation process and damage is solved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a side view of a precast concrete fabricated foundation of the utility model for a power transmission line;
fig. 2 is a front view of the precast concrete fabricated foundation of the utility model;
fig. 3 is a top view of the precast concrete fabricated foundation of the utility model for the power transmission line;
figure 4a is a side view of a single-type member 301 of the present invention;
figure 4b is a top view of the unitary member 301 of the present invention;
figure 5a is a side view of the inventive mating member 501;
figure 5b is a top view of the engagement member 501 of the present invention;
fig. 6a is a top view of a round precast concrete pole 4 of the present invention;
figure 6b is a side view of a round precast concrete pole 4 of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention, and are not intended to limit the present invention.
Referring to fig. 1, there is shown a side view of a precast concrete prefabricated foundation for a power transmission line, and referring to fig. 2, there is shown a front view of a precast concrete prefabricated foundation for a power transmission line, the foundation including: steel pipe 1, flange 2, first precast concrete component 3, circular precast concrete pole 4 and second precast concrete component 5, wherein steel pipe 1 is hollow structure, so can insert iron tower angle steel main part 6, perhaps can be steel pipe 6, as the basis of upper portion transmission line iron tower, the bottom angle steel main part of iron tower inserts in steel pipe 1, toward hollow portion concreting again, just so fixed the bottom of iron tower, in the embodiment of the utility model, the steel pipe is circular, and this steel pipe can be other arbitrary shapes in the practical application, the utility model discloses do not specifically prescribe a limit to this.
Referring to fig. 3, which shows a top view of a precast concrete assembly foundation for a power transmission line, a steel pipe 1 is perpendicular to a flange 2 and is connected by welding, because the steel pipe 1 is hollow, the part welded with the flange 2 is only the part of the thickness of the steel pipe 1, so that 8 triangular reinforcing steel bars 7 are uniformly welded around the steel pipe 1 at the joint with the flange 2, and the reinforcing steel bars 7 are used for reinforcing the welding strength of the steel pipe 1 and the flange 2 so as to ensure that the precast concrete assembly foundation is firmly connected with an upper power transmission tower. Around steel pipe 1 and flange 2 junction, evenly open equally has 16 bolt holes 8, and these bolt holes run through whole concrete assembled basis, through the bolt, couple together 16 bolt holes 8, be about to steel pipe 1, first precast concrete component 3 and second precast concrete component 5 fix, have guaranteed the fastness of whole assembled basis.
The first precast concrete unit 3 is respectively connected with the flange 2, the round precast concrete pole 4 and the second precast concrete unit 5, the first precast concrete unit 3 comprises 6 single-type units 301 with upper parts of right-angle trapezoid structures and lower parts of evenly distributed semicircular apertures, referring to fig. 4a, a side view of the single-type unit 301 is shown, referring to fig. 4b, a top view of the single-type unit 301 is shown, referring to fig. 4a and 4b, the upper parts of the single-type units are right-angle trapezoid structures, the lower parts of the single-type units are evenly distributed semicircular apertures 3011, the apertures below the right-angle sides are only one fourth of round, therefore, when the two single-type units 301 are symmetrically combined, the upper parts of the single-type units become isosceles trapezoid structures, the lower parts of the circular apertures form a semicircular aperture, and in the top view of fig. 4b, the small round holes 8 are bolt holes corresponding to the bolt holes 8, the dotted line part 801 in the side view indicates that the bolt holes 8 penetrate through the single-type members 301, the single-type members 301 are combined into a combined member in pairwise symmetry, and then the combined member is longitudinally aligned to form the first precast concrete member 3 shown in fig. 2, the area of the connection surface of the first precast concrete member 3 and the flange 2 is larger than that of the flange 2, so that the flange and the first precast concrete member 3 can be tightly connected, the stability of the concrete assembly foundation is ensured, the reinforcement is arranged at the top of the 6 single-type members 301, the strength of the single-type members 301 is also ensured, after the combination, the first precast concrete member 3 meets the strength requirement of the concrete assembly foundation, and the reinforcement is arranged only at the top, so that the single-type members 301 are lighter in weight and convenient to transport and hoist.
The second precast concrete unit 5 is connected with the first precast concrete unit 3 and the round precast concrete pole 4, respectively, the second precast concrete unit 5 includes 6 fitting units 501 having an upper portion having the same shape as the lower portion of the single type unit 301, the lower portion of the fitting unit 501 has a square structure, referring to fig. 5a, a side view of the fitting unit 501 is shown, referring to fig. 5b, a top view of the fitting unit 501 is shown, referring to fig. 5a and 5b, an upper portion having the same shape as the lower portion of the single type unit 301, corresponding to a lower semicircular aperture of the single type unit 301, a corresponding semicircular aperture 5011 is prefabricated, in a top view of fig. 5b, a small circular hole 8 is a bolt hole corresponding to the bolt hole 8 on the flange, a dotted line portion 801 in the side view indicates, the bolt hole 8 penetrates the fitting unit 501, the fitting unit 501 is combined in the same combination manner as the single type unit, a second precast concrete unit 5 as shown in fig. 2 is formed, which, when combined with the first precast concrete unit 3, forms a circular aperture of the same diameter as the circular precast concrete pole 4, which is just inserted into the circular precast concrete pole 4. And the bottom reinforcement of 6 cooperation members 501 has also guaranteed the intensity of cooperation member 501, and its combination back for second precast concrete member 5 satisfies the intensity requirement on concrete assembled basis, because only the bottom reinforcement simultaneously, so make the weight ratio of cooperation member 501 lighter, also convenient transportation and hoist like this. After the first precast concrete unit 3 and the second precast concrete unit 5 are aligned and combined, a gap may be left between the structures as shown in fig. 1, and the gap may be filled with concrete when the concrete fabricated foundation is finally backfilled with concrete, thereby securing the position of the first precast concrete unit 3 and the second precast concrete unit 5 after aligned and combined and fastening the connection.
The circular precast concrete rod 4 is vertically connected to the first precast concrete unit 3 and the second precast concrete unit 5, respectively, and since the diameter thereof is equal to the diameter of the circular aperture formed by combining the first precast concrete unit 3 and the second precast concrete unit 5, it can be tightly connected to the first precast concrete unit 3 and the second precast concrete unit 5, referring to the top view of the concrete assembly foundation of fig. 3, a certain number of anchor holes 401 are opened on the circular precast concrete rod 4, 2 anchor holes 401 are opened at positions corresponding to the gaps, 2 anchor holes 401 are opened at positions near the two side edges of the first precast concrete unit 3, respectively, that is, 6 anchor holes 401 are opened on one circular precast concrete rod 4, it should be noted that bolt holes 8 are opened at positions corresponding to the bolt holes 8 on the circular precast concrete rod 4 passing through the position of the bolt hole 8, referring to fig. 6a, which shows a top view of one of the round precast concrete rods 4, fig. 6b shows a side view of one of the round precast concrete rods 4, in the top view of fig. 6a, a small round hole 8 is a bolt hole corresponding to the bolt hole 8 on the flange, and is indicated by a dotted line portion 801 in the side view, the bolt hole 8 penetrates through the round precast concrete rod 4, and another part of the dotted line 4011 penetrates through the round precast concrete rod 4, and the anchor hole 401 penetrates through the round precast concrete rod 4. Through the crab-bolt, pass anchor bolt hole with circular precast concrete pole 4 and ground bed course anchor, the ground bed course is below the concrete assembled basis, for convenient basic concrete construction, also for the one deck plain concrete that protection basic concrete reinforcing bar and laid, utilize the crab-bolt anchor back, also guaranteed the rigidity after first precast concrete component 3 makes up with second precast concrete component 5, can not squint, and circular precast concrete pole 4 does not have the edges and corners because of its molding, the difficult damage condition that collides with takes place, the construction of being convenient for, it is also more convenient to transport.
The utility model discloses a transmission line precast concrete assembled basis construction order does: placing a second precast concrete member 5 at the bottom, placing a circular precast concrete rod 4 on the semicircular aperture of the second precast concrete member 5, aligning the prefabricated concrete rods and the prefabricated concrete rods in parallel, placing a first precast concrete member 3 corresponding to the position of the second precast concrete member 5, inserting an anchor bolt into a reserved anchor bolt hole of the circular precast concrete rod 4 for anchoring, and finally connecting the flange 2, the first precast concrete member 3, the second precast concrete member 5 and the upper steel pipe 1 through bolts, thereby finishing the construction of the whole concrete assembly type foundation. The round precast concrete pole 4 and the first precast concrete member 3 support the steel pipe 1 together and bear the load transmitted by the upper part of the transmission tower together, and the force transmission path of the round precast concrete pole is consistent with that of a traditional concrete slab assembly foundation. The structure and the splicing mode greatly reduce the number of bolts, the construction difficulty is reduced because the weight of a single component is smaller, the assembly performance of the foundation is improved, each sub-component is convenient to transport and hoist, and the mechanical construction efficiency is improved.
It should be noted that the specific quantities in the above embodiments are provided for a clear understanding of the simple embodiments of the present invention, and the specific quantities in actual construction need to be determined according to actual requirements, and do not represent all data of the concrete assembly foundation.
Through the embodiment, the utility model discloses to place the second precast concrete component in the bottom, circular precast concrete pole and first precast concrete component, carry out the cordwood system concatenation, insert the crab-bolt anchor through reserving the anchor bolt hole, through the bolt with first precast concrete component, second precast concrete component and top steel pipe connection, when guaranteeing to satisfy transmission tower's bearing load, the quantity of bolt has been reduced by a wide margin, and because the weight of single component is less, the construction degree of difficulty has been reduced, the assembly nature of basis has been improved, and every partial component is difficult for taking place to collide with the damaged condition, be convenient for transportation and hoist and mount, the whole mechanized efficiency of construction that has improved.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above details are introduced into the precast concrete assembly type foundation for the power transmission line provided by the utility model, and the specific examples are applied herein to explain the principle and the implementation mode of the utility model, and the description of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. The utility model provides a transmission line precast concrete assembled basis which characterized in that, concrete assembled basis includes: the prefabricated concrete comprises a steel pipe, a flange, a first prefabricated concrete component, a round prefabricated concrete rod and a second prefabricated concrete component;
the steel pipe is connected with the flange, is of a hollow structure and is perpendicular to the flange, and is the top of the concrete fabricated foundation;
the flange is respectively connected with the steel pipe and the first precast concrete member, and a first preset number of bolt holes are formed in the flange around the joint of the steel pipe;
the first precast concrete component is respectively connected with the flange, the round precast concrete rod and the second precast concrete component, the upper part of the first precast concrete component is of an isosceles trapezoid structure, the connecting part of the lower part of the first precast concrete component and the second precast concrete component is pre-provided with evenly distributed semicircular apertures, and bolt holes with the same size and number are formed in positions corresponding to the bolt holes;
the second precast concrete component is respectively connected with the first precast concrete component and the round precast concrete rod, the upper part of the second precast concrete component is the same as the lower part of the first precast concrete component in shape, corresponding to the semicircular aperture of the lower part of the first precast concrete component, corresponding semicircular apertures are prefabricated, bolt holes with the same size and number are formed corresponding to the bolt holes, and the second precast concrete component is the bottom of the concrete assembly type foundation;
the round precast concrete rods are respectively and vertically connected with the first precast concrete component and the second precast concrete component, the diameter of each round precast concrete rod is equal to that of a round hole formed by combining the second precast concrete component and the first precast concrete component, and anchor bolt holes with a second preset number are formed in the round precast concrete rods close to the first precast concrete component.
2. The concrete fabricated foundation of claim 1, wherein the steel pipe is welded to the flange, and a third predetermined number of reinforcing bars for reinforcing the welding strength of the steel pipe to the flange are welded around the joint of the steel pipe.
3. The concrete fabricated foundation of claim 1, wherein the steel pipe, the first precast concrete element, and the second precast concrete element are connected and reinforced by bolts through the bolt holes.
4. The concrete fabricated foundation of claim 1, wherein the first precast concrete elements comprise six single-type elements with upper portions of right-angled trapezoid structures and lower portions of evenly distributed semicircular apertures, the single-type elements are combined in pairs and symmetrically to form an isosceles trapezoid structure, the lower portions of the single-type elements are provided with evenly distributed semicircular apertures, the combined elements are longitudinally aligned to form the first precast concrete elements, and gaps are reserved between the combined elements for filling the earthwork.
5. The concrete fabricated foundation of claim 4, wherein the second precast concrete unit includes six engaging members having upper portions of the same shape as the lower portion of the mono type unit, and the engaging members are combined into the second precast concrete unit in the same manner as the first precast concrete unit is combined, so that the second precast concrete unit is combined with the first precast concrete unit to form a circular aperture having a diameter equal to that of the circular precast concrete rod.
6. The concrete fabricated foundation of claim 4, wherein the round precast concrete poles are provided with a first number of anchor holes corresponding to the gap positions, and a second number of anchor holes corresponding to both side edge positions of the first precast concrete element, respectively, and a sum of the first number and the second number is the second predetermined number.
7. The concrete fabricated foundation of claim 1, wherein the steel pipe hollow portion is used for inserting a main angle iron material, and the steel pipe hollow portion is used as a concrete pouring template inserted into the main angle iron material.
8. The concrete fabricated foundation of claim 1, wherein the first precast concrete element is reinforced at a top and the second precast concrete element is reinforced at a bottom.
9. The concrete fabricated foundation of claim 6, wherein the round precast concrete rods are anchored to a foundation pad by anchor bolts through the anchor bolt holes, the round precast concrete rods are used for fixing the position of the first precast concrete member combined with the second precast concrete member, and the foundation pad is a layer of plain concrete laid under the concrete fabricated foundation for the convenience of foundation concrete construction and for protecting foundation concrete reinforcement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822256689.0U CN210151772U (en) | 2018-12-29 | 2018-12-29 | Precast concrete assembled foundation for power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822256689.0U CN210151772U (en) | 2018-12-29 | 2018-12-29 | Precast concrete assembled foundation for power transmission line |
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| CN210151772U true CN210151772U (en) | 2020-03-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263206A (en) * | 2021-12-30 | 2022-04-01 | 广州电力设计院有限公司 | Fabricated concrete foundation and construction method thereof |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263206A (en) * | 2021-12-30 | 2022-04-01 | 广州电力设计院有限公司 | Fabricated concrete foundation and construction method thereof |
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