CN218027796U - Prefabricated assembly type step foundation for power transmission line tower - Google Patents
Prefabricated assembly type step foundation for power transmission line tower Download PDFInfo
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- CN218027796U CN218027796U CN202222429478.9U CN202222429478U CN218027796U CN 218027796 U CN218027796 U CN 218027796U CN 202222429478 U CN202222429478 U CN 202222429478U CN 218027796 U CN218027796 U CN 218027796U
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Abstract
The utility model relates to a ladder platform base, concretely relates to transmission line shaft tower is with prefabricated assembled ladder platform base. The prefabricated structure comprises a bottom prefabricated step, a middle prefabricated step, a top prefabricated step and a prefabricated main column, wherein the bottom prefabricated step, the middle prefabricated step, the top prefabricated step and the prefabricated main column are sequentially aligned and stacked from bottom to top in a central mode; and a middle screw rod is preset in the middle of the bottom prefabricated step, penetrates through the middle prefabricated step and the top prefabricated step and is connected with the prefabricated main column. The prefabricated parts of the step platform base are processed by a factory, and finished products are transported to a construction site for installation. The construction method has the advantages of being convenient for on-site assembly and construction, having less whole-course manual participation in construction and high construction efficiency, and solving the problems that the existing foundation concrete has longer maintenance period, the construction period is longer, the efficiency is lower and the cast-in-place pile causes higher construction cost.
Description
Technical Field
The utility model relates to a ladder platform base, concretely relates to transmission line shaft tower is with prefabricated assembled ladder platform base.
Background
The excavation step foundation and the plate type foundation are used as the common foundation type of the conventional transmission line tower, the construction cost is low, the whole construction process is controllable, and the application is wide. However, in the construction process of the foundation type, except for the foundation pit excavation and backfilling, machines can be adopted, for example, manual formwork erection, concrete pouring and the like need a large amount of manpower, the foundation concrete has a long maintenance period, the development of the whole-process mechanized construction operation of the power transmission line is not facilitated, the construction period is long, and the efficiency is low. At present, with the development of power transmission line mechanized construction, the foundation of the type is gradually replaced by a cast-in-place pile foundation, but the problem of high construction cost is brought.
Disclosure of Invention
The utility model aims to provide a: the prefabricated assembly type step foundation for the power transmission line tower is convenient to construct, does not need a large amount of labor participation, and is controllable in construction quality, so that the labor intensity of constructors is reduced.
The utility model discloses a realize above-mentioned purpose through following technical scheme:
the utility model provides a transmission line shaft tower is with prefabricated assembled ladder platform base, it comprises prefabricated step of bottom, prefabricated step of middle level, prefabricated step of top layer and prefabricated king post, its characterized in that: the bottom prefabricated step, the middle prefabricated step, the top prefabricated step and the prefabricated main column are sequentially aligned and stacked from bottom to top in the center; and a middle screw rod is preset in the middle of the bottom prefabricated step, penetrates through the middle prefabricated step and the top prefabricated step and is connected with the prefabricated main column.
The bottom prefabricated step and the middle prefabricated step are respectively formed by horizontally splicing a middle prefabricated plate and an edge prefabricated plate; the side prefabricated plates are symmetrically arranged at two sides of the middle prefabricated plate.
The middle part of the middle prefabricated plate of the bottom prefabricated step is in a square shape and is pre-provided with a middle screw rod, and the middle part of the middle prefabricated plate of the middle prefabricated step is provided with a middle screw rod through hole corresponding to the middle screw rod.
The number of the middle precast slabs and the side precast slabs of the bottom precast step and the middle precast step is 5; the prefabricated step of bottom and middle level between through the cooperation of avris screw rod and avris screw rod through-hole, by fixation nut fixed connection.
The middle prefabricated step and the bottom prefabricated step are arranged in a cross-shaped seam pressing mode.
The middle prefabricated plate of the middle prefabricated step is provided with a boss, a middle through hole is formed in the boss corresponding to the middle screw rod, double rows of screw rods are preset on the side prefabricated plate of the middle prefabricated step, and a single row of screw rods are preset on the side prefabricated plate on one side of the double rows of screw rods.
The upper surface of the boss is flush with the upper surface of the prefabricated step of the top layer.
Prefabricated step of top layer form around the concatenation of boss level by intermediate lamella and avris board, the intermediate lamella is the interval setting, the both sides of intermediate lamella are provided with the limit curb plate, correspond single screw rod on the intermediate lamella and be provided with single row of screw rod hole, correspond double screw rod on the limit curb plate and be provided with double screw rod hole, through double screw rod and single screw rod and the screw rod hole cooperation that corresponds between prefabricated step of top layer and the middle level, by fixation nut fixed connection.
The prefabricated main column is composed of a fixing flange and a main column main body, the fixing flange is preset at the bottom of the main column main body, an anchor bolt is arranged at the center of the fixing flange, one end of the anchor bolt extends to the upper side of the main column main body, and a fixing bolt hole is formed in the fixing flange on the periphery of the main column main body and corresponds to the middle screw.
Compared with the prior art, the utility model beneficial effect lie in:
all components of the prefabricated assembly type step foundation for the power transmission line tower are prefabricated parts, the prefabricated parts are machined and finished in a factory, a construction site is installed in a splicing and screw combining mode, the whole construction process is less in manual participation, the construction efficiency is higher, the construction process is visual, the quality of finished products is controllable, and the whole construction process is basically pollution-free and environment-friendly. The problems that the existing platform foundation concrete has a long maintenance period, so that the construction period is long, the efficiency is low and the construction cost is high due to the cast-in-place pile are solved. The method is particularly suitable for installing and using the tower foundation pit in the area with less underground water and lower soil and underground water corrosivity.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the structure of FIG. 1;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic top view of the bottom prefabricated step of the present invention;
FIG. 5 is a side view of the structure of FIG. 4;
fig. 6 is a schematic top view of the middle prefabricated step of the present invention;
FIG. 7 is a schematic side view of the middle prefabricated step of the present invention;
FIG. 8 is a schematic sectional view showing a middle precast slab of a middle precast step;
fig. 9 is a schematic top view of the prefabricated top step of the present invention;
FIG. 10 is a schematic structural view of the prefabricated main column of the present invention;
fig. 11 is a schematic top view of the prefabricated main column of the present invention.
In the figure: 1. the prefabricated step of bottom, 2, middle level prefabricated step, 3, top prefabricated step, 4, prefabricated main column, 5, middle prefabricated plate, 6, lateral prefabricated plate, 7, middle screw, 8, lateral screw, 9, boss, 10, middle screw through hole, 11, lateral screw through hole, 12, double screw, 13, single screw, 14, middle plate, 15, lateral plate, 16, single screw hole, 17, double screw hole, 18, fixed flange, 19, main column body, 20, anchor bolt, 21, and fixed bolt hole.
Detailed Description
The prefabricated assembly type step base for the power transmission line tower is composed of a bottom prefabricated step 1, a middle prefabricated step 2, a top prefabricated step 3 and a prefabricated main column 4. The bottom prefabricated step 1, the middle prefabricated step 2, the top prefabricated step 3 and the prefabricated main column 4 are sequentially aligned and stacked from bottom to top in the center (the axes are overlapped). The bottom prefabricated step 1, the middle prefabricated step 2 and the top prefabricated step 3 are all square, the size of the bottom prefabricated step 1 is controlled within the range of 2.4 multiplied by 2.4-3.0 multiplied by 3.0m, the thickness is controlled within the range of 0.3-0.5 m, and the weight of a single prefabricated part is controlled within 1.5 tons by considering factors such as foundation bearing capacity, construction convenience, construction equipment and the like.
The bottom prefabricated step 1 and the middle prefabricated step 2 are respectively formed by horizontally splicing a middle prefabricated plate 5 and an edge prefabricated plate 6; the side prefabricated plates 6 are symmetrically arranged at the two sides of the middle prefabricated plate 5. Middle part prefabricated plate 5 middle part of bottom prefabricated step 1 is the mouth style of calligraphy and has preset middle screw rod 7, the avris screw rod 8 has been preset for the avris prefabricated plate 6 edge of bottom prefabricated step 1 to be triangle-shaped, be provided with boss 9 on the middle part prefabricated plate 5 of middle level prefabricated step 2, it is provided with middle screw rod through-hole 10 to correspond middle screw rod 7 on the boss 9, the avris screw rod 8 that corresponds at the avris prefabricated plate 6 edge of middle level prefabricated step 2 is provided with avris screw rod through-hole 11, through the cooperation of avris screw rod 8 and avris screw rod through-hole 11 between bottom prefabricated step 1 and the middle level prefabricated step 2, by fixation nut fixed connection. The side prefabricated plate 6 of the middle prefabricated step 2 is provided with a double-row screw 12 in advance, and the side prefabricated plate 6 of the prefabricated step 2 at one side of the double-row screw 12 is provided with a single-row screw 13 in advance. And the double-row screw 12 and the single-row screw 13 are used for connecting and fixing the top prefabricated step 3.
The top prefabricated step 3 is formed by horizontally splicing an intermediate plate 14 and side plates 15 around a boss, the intermediate plate 14 is arranged at intervals, side plates 15 are arranged on two sides of the intermediate plate 14, single-row screw holes 16 are formed in two ends of the intermediate plate 15 corresponding to the single-row screws 13, double-row screw holes 17 are formed in two ends of the side plates 14 corresponding to the double-row screws 12, and the top prefabricated step 3 is fixedly connected with the middle prefabricated step 2 through the double-row screws 12 and the single-row screws 13 in a matched mode with the corresponding screw holes and fixed nuts.
The bottom prefabricated step 1 and the middle prefabricated step 2 are respectively formed by splicing 1 middle prefabricated plate 5 and 4 side prefabricated plates 6 in a contact manner; the prefabricated step 3 on the top layer is formed by splicing 2 middle plates 14 and 2 side plates 15 in a contact manner; in the construction process, the middle prefabricated step 2 and the bottom prefabricated step 1, and the top prefabricated step 3 and the middle prefabricated step 2 are arranged in a cross-shaped seam pressing mode. The upper surface of the boss 9 is flush with the upper surface of the prefabricated step 3 on the top layer.
The prefabricated main column 4 is composed of a fixing flange 18 and a main column main body 19, the fixing flange 18 is preset at the bottom of the main column main body 19, an anchor bolt 20 is arranged at the center of the fixing flange 18, one end of the anchor bolt 20 extends to the upper side of the main column main body 19, and a fixing bolt hole 21 is formed in the fixing flange 18 on the periphery of the main column main body 19 corresponding to the middle screw 7. In the construction process, the middle screw 7 of the bottom prefabricated step 1 penetrates through the middle screw through hole 10 of the middle prefabricated step 2 and is fixedly connected with the fixing bolt hole 21 of the prefabricated main column 4 through a fixing nut; thereby forming the whole step platform base.
When in site construction, the foundation pit is firstly excavated to the designed depth, and the bottom surface of the foundation pit is leveled. And (3) aligning the middle prefabricated plate 5 of the bottom prefabricated step 1 to the foundation center pile, hoisting and placing in place, and splicing the side prefabricated plates 6 of the bottom prefabricated step 1 into the bottom prefabricated step 1 along two sides of the middle prefabricated plate 5.
And (3) vertically superposing the middle prefabricated plate 5 of the middle prefabricated step 2 and the middle prefabricated plate 5 of the bottom prefabricated step 1, wherein the long edge forms an included angle of 90 degrees, a pre-embedded middle screw 7 on the middle prefabricated plate 5 of the bottom prefabricated step 1 is installed in a way of being opposite to the middle screw through hole 10 of the middle prefabricated step 2, and then splicing the lateral prefabricated plate 6 of the middle prefabricated step 2 and the middle prefabricated plate 5 of the middle prefabricated step 2 along the middle, thereby forming the middle prefabricated step 2.
And hoisting the middle plate 14 and the side plates 15 of the top prefabricated step 3 to splice the middle plate and the side plates around the boss 9, aligning the double-row screw rods 12 and the single-row screw rods 13 pre-embedded in the middle prefabricated step 2 with the double-row screw rod holes 17 and the single-row screw rod holes 16 on the top prefabricated step 3, and forming the top prefabricated step 3 after finishing.
And finally, hoisting the prefabricated main column 4 to align the fixing bolt hole 21 with the middle screw 7 of the prefabricated step 1 at the bottom layer. And finishing the installation of the prefabricated assembly type step foundation.
All the prefabricated parts of the prefabricated assembly type step foundation are processed by a factory, and finished products are transported to a construction site for installation. Each prefabricated part needs to ensure higher processing precision and is convenient for on-site assembly and construction. The construction site is installed in a splicing and screw rod combination mode, the whole construction process is less in manual participation, the construction efficiency is high, the construction process is visual, the quality of finished products is controllable, and the whole construction process is pollution-free and environment-friendly. The problems that the existing platform foundation concrete has a long maintenance period, so that the construction period is long, the efficiency is low and the construction cost is high due to the cast-in-place pile are solved. The method is particularly suitable for installing and using the tower foundation pit in the area with less underground water and lower soil and underground water corrosivity.
The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essential contents of the present invention in any way, and any simple modifications or variations of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified by the technical essence of the present invention and equivalent variations using the technical essence of the present invention will still fall within the technical scope of the present invention without departing from the essence and scope of the present invention.
Claims (8)
1. The utility model provides a transmission line shaft tower is with prefabricated assembled ladder platform base, it comprises prefabricated step of bottom (1), prefabricated step of middle level (2), prefabricated step of top layer (3) and prefabricated king post (4), its characterized in that: the bottom prefabricated step (1), the middle prefabricated step (2), the top prefabricated step (3) and the prefabricated main column (4) are sequentially aligned and stacked from bottom to top in the center; the middle part of the bottom layer prefabricated step (1) is preset with a middle screw rod (7), and the middle screw rod penetrates through the middle layer prefabricated step (2) to be connected with the prefabricated main column (4).
2. The prefabricated assembly type step foundation for the transmission line tower as claimed in claim 1, wherein: the bottom prefabricated step (1) and the middle prefabricated step (2) are respectively formed by horizontally splicing a middle prefabricated plate (5) and an edge prefabricated plate (6); the side prefabricated plates (6) are symmetrically arranged at the two sides of the middle prefabricated plate (5).
3. The prefabricated assembly type step foundation for the transmission line tower as claimed in claim 2, wherein: the middle part of the middle prefabricated plate (5) of the bottom prefabricated step (1) is in a shape of a square, a middle screw (7) is preset, and the middle part of the middle prefabricated plate (5) of the middle prefabricated step (2) is provided with a middle screw through hole (10) corresponding to the middle screw (7).
4. The prefabricated assembly type step foundation for the transmission line tower as claimed in claim 2, wherein: the number of the middle prefabricated plates (5) and the side prefabricated plates (6) of the bottom prefabricated step (1) and the middle prefabricated step (2) is 5; the prefabricated step of avris (6) the edge of bottom prefabricated step (1) be triangle-shaped and preset avris screw rod (8), the avris prefabricated plate (6) edge of middle level prefabricated step (2) corresponds avris screw rod (8) and is provided with avris screw rod through-hole (11), through the cooperation of avris screw rod (8) and avris screw rod through-hole (11), by fixation nut fixed connection between prefabricated step of bottom (1) and middle level prefabricated step (2).
5. The prefabricated assembly type step foundation for the power transmission line tower according to claim 2, characterized in that: the middle prefabricated step (2) and the bottom prefabricated step (1) are arranged in a cross-shaped seam pressing mode.
6. The prefabricated assembly type step foundation for the transmission line tower as claimed in claim 3, wherein: a boss (9) is arranged on the middle prefabricated plate (5) of the middle prefabricated step (2), a middle screw rod through hole (10) is arranged on the boss (9) corresponding to the middle screw rod (7), double rows of screw rods (12) are preset on the side prefabricated plate (6) of the middle prefabricated step (2), and a single row of screw rods (13) are preset on the side prefabricated plate (6) on one side of the double rows of screw rods (12); the upper surface of the boss (9) is flush with the upper surface of the top prefabricated step (3).
7. The prefabricated assembly type step foundation for the transmission line tower as claimed in claim 1, wherein: prefabricated step of top layer (3) form around boss (9) horizontal concatenation by intermediate lamella (14) and avris board (15), intermediate lamella (14) are the interval setting, the both sides of intermediate lamella (14) are provided with limit curb plate (15), it is provided with single row screw rod hole (16) to correspond single row screw rod (13) on intermediate lamella (14), it is provided with double screw rod hole (17) to correspond double screw rod (12) on avris board (15), through double screw rod (12) and single row screw rod (13) and the cooperation of single row screw rod hole (16) and double screw rod hole (17) that correspond between prefabricated step of top layer (3) and middle level (2), by fixation nut fixed connection.
8. The prefabricated assembly type step foundation for the transmission line tower as claimed in claim 1, wherein: the prefabricated main column (4) is composed of a fixing flange (18) and a main column main body (19), the fixing flange (18) is preset at the bottom of the main column main body (19), an anchor bolt (20) is arranged at the center of the fixing flange (18), one end of the anchor bolt (20) extends to the upper side of the main column main body (19), and a fixing bolt hole (21) is formed in the fixing flange (18) on the periphery of the main column main body (19) and corresponds to the middle screw rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429478.9U CN218027796U (en) | 2022-09-14 | 2022-09-14 | Prefabricated assembly type step foundation for power transmission line tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429478.9U CN218027796U (en) | 2022-09-14 | 2022-09-14 | Prefabricated assembly type step foundation for power transmission line tower |
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| Publication Number | Publication Date |
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| CN218027796U true CN218027796U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222429478.9U Active CN218027796U (en) | 2022-09-14 | 2022-09-14 | Prefabricated assembly type step foundation for power transmission line tower |
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| CN (1) | CN218027796U (en) |
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- 2022-09-14 CN CN202222429478.9U patent/CN218027796U/en active Active
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