CN209745544U - Experimental combination conversion base of transmission line major diameter steel pipe pole - Google Patents
Experimental combination conversion base of transmission line major diameter steel pipe pole Download PDFInfo
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- CN209745544U CN209745544U CN201920748431.4U CN201920748431U CN209745544U CN 209745544 U CN209745544 U CN 209745544U CN 201920748431 U CN201920748431 U CN 201920748431U CN 209745544 U CN209745544 U CN 209745544U
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Abstract
The utility model discloses a large-diameter steel pipe pole test combination conversion base for a power transmission line, which comprises a cylindrical large-diameter test steel pipe pole (1), a long steel beam (2), a short steel beam (3), a test station foundation steel beam (4) and a flange bolt (5); the large-diameter experimental steel pipe rod (1) is positioned above the three transversely arranged long steel beams (2), two ends of each long steel beam (2) are positioned on the short steel beams (3), and two ends of each short steel beam (3) are positioned on the two test station base steel beams (4); the round section steel pipe pole structure overcomes the defects that bolts at the bottom of the round section steel pipe pole structure are annularly arranged and cannot be directly fixed in all current test bases, and has the advantages that the round section steel pipe pole structure is widely applied to the prior art, the combined structure of the long steel beam and the short steel beam is adopted, the bolt holes are annularly distributed in the long steel beam top plate, and the true test of the large-diameter steel pipe pole is satisfactorily completed.
Description
Technical Field
the utility model relates to transmission line structural design's technical field, more specifically the experimental combination conversion base of a transmission line major diameter steel pipe pole.
Background
The reliability of the transmission line tower structure used in engineering is mainly determined through a true test, and the reality of the transmission line tower structure is fully embodied.
The actual bearing capacity, the integral deformation condition, the bearing capacity of the members and the nodes and the like of the tower can be tested by the true tower-tower structure test.
The true test is an important means for theoretical design and entity inspection of the structure of the power transmission line and is also a verification measure for engineering application.
At present, tower test base sites at home and abroad are mainly arranged aiming at angle steel towers, ground anchors of fixed test towers are arranged in a regular groined shape, bolt holes of counterforce steel beams are arranged horizontally or longitudinally, and the tower test base sites only can adapt to angle steel towers with rectangular or square sections and regular foundation bolts. For the widely applied steel pipe rod structure with the circular section, bolts at the bottom of the steel pipe rod structure are annularly arranged, so that the steel pipe rod structure cannot be directly fixed in all current test bases; and for the steel pipe pole structure of the power transmission line with large external load, such as a terminal steel pipe pole and the like, the outer diameter of a flange at the bottom of the steel pipe pole structure exceeds 3 meters, the weight of the integral conversion flange exceeds 70 tons, and the requirements of transportation and on-site hoisting of a test cannot be met. Therefore, the structural test of the large-diameter true steel pipe rod cannot be carried out, and a conversion device is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a large-diameter steel pipe pole test combination conversion base for a power transmission line.
The purpose of the invention is implemented by the following technical scheme: a large-diameter steel pipe pole test combination conversion base for a power transmission line comprises a cylindrical large-diameter test steel pipe pole, a long steel beam, a short steel beam, a test station foundation steel beam and flange bolts;
The large-diameter experimental steel pipe rod is positioned above the three transversely arranged long steel beams, two ends of each long steel beam are positioned on the short steel beams, two ends of each short steel beam are positioned on the two test station basic steel beams, and the test station basic steel beams are positioned above the ground.
In the above technical scheme: the three long steel beams are spliced into a rectangular structure; the large-diameter experimental steel pipe pole periphery be provided with a plurality of whole annular bolt hole that is provided with, the external diameter D of bolt hole be greater than more than 300 millimeters.
in the above technical scheme: each long steel beam consists of an upper top plate, a lower bottom plate, a web plate and a ribbed plate;
the intersection of each upper top plate, each web plate, each rib plate and each lower bottom plate is at an angle of 45 degrees;
And three construction hoisting holes with the diameter of 32 millimeters are arranged at two ends of the web plate.
In the above technical scheme: the opposite sides of the end part of the upper top plate are distributed with a row of horizontal bolt holes, the opposite sides of the end part of the lower bottom plate are distributed with two rows of horizontal bolt holes, the arrangement directions of the bolt holes of the horizontal bolt holes are all perpendicular to the long side direction of the short steel beam, and the distance between the horizontal bolt holes is consistent with the distance between the bolt holes in the short steel beam.
In the above technical scheme: the short steel beam comprises a short steel beam upper top plate, a short steel beam lower bottom plate, a short steel beam web plate and a short steel beam rib plate; the thickness of the short steel beam upper top plate and the short steel beam lower bottom plate is 0.8 times larger than that of the upper top plate and the lower bottom plate, and the thickness of the short steel beam upper top plate and the short steel beam lower bottom plate is not less than 50 mm.
In the above technical scheme: the large-diameter experimental steel pipe rod is fixed with the long steel beam which is transversely arranged through flange bolts, and the flange bolts penetrate through the long steel beam and are fixed with the lower bottom plate;
The long steel beam is fixed with the short steel beam through a first through long bolt, and the first through long bolt sequentially penetrates through the long steel beam and the short steel beam and is fixed with the lower bottom plate of the short steel beam;
The lower bottom plate is fixed with the short steel beam through a second through bolt; the short steel beam and the test station foundation steel beam are fixed through short bolts.
In the above technical scheme: the diameters of the first through long bolt, the second through long bolt and the short bolt are not less than 0.8 part of the diameter of the flange bolt; the aperture of the horizontal bolt hole is 1.25 parts of the diameters of the first through long bolt, the second through long bolt and the short bolt, and the distance between the adjacent horizontal bolt holes is not less than 250 mm.
The utility model has the advantages of as follows: 1. the utility model discloses wholly be integrated configuration, constitute by three long girder steel, six short girder steels, the weight of single long girder steel all does not exceed 19 tons, and the volume of single long girder steel is less than 7.7 meters (length) x1.3 meters (width) x1.3 meters (height), and the weight of single short girder steel all does not exceed 6 tons, and the volume of single short girder steel is less than 4 meters (length) x1.3 meters (width) x0.7 meters (height). The single component is convenient for the processing and the transportation of a production workshop. 2. The utility model provides a bolted connection who all adopts between long girder steel, short girder steel, experimental basic station and the major diameter steel pipe pole is fixed, makes whole composite set easy to assemble and dismantlement. 3. The utility model discloses well short girder steel is connected with experimental basic station girder steel to reach experimental load loading requirement, set up the annular bolt hole that distributes on through the long girder steel roof, make the experimental satisfactory completion of true type of major diameter steel-pipe pole.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a front view of a long steel beam a in the present invention.
fig. 4 is a plan view of the long steel beam a of the present invention.
fig. 5 is a schematic bottom plate view of the long steel beam a of the present invention.
Fig. 6 is a schematic top plate view of a long steel beam a according to the present invention.
fig. 7 is a front view of a long steel beam B in the present invention.
Fig. 8 is a plan view of the long steel beam B of the present invention.
fig. 9 is a schematic bottom plate diagram of the long steel beam B of the present invention.
Fig. 10 is a schematic top plate view of a long steel beam B according to the present invention.
Figure 11 is the front view of the short and medium steel beam of the present invention.
Fig. 12 is a plan view of the short and medium steel beam of the present invention.
Figure 13 is the utility model discloses the bottom plate schematic diagram of well short steel roof beam.
figure 14 is the utility model discloses the roof sketch map of short steel beam in.
in the figure: the large-diameter experimental steel pipe rod comprises a large-diameter experimental steel pipe rod 1, bolt holes 1.1, a long steel beam 2, an upper top plate 2.1, horizontal bolt holes 2.1.1, a lower bottom plate 2.2, webs 2.3, rib plates 2.4, a short steel beam 3, a short steel beam upper top plate 3.1, a short steel beam lower bottom plate 3.2, a short steel beam web 3.3, a short steel beam rib plate 3.4, a test station foundation steel beam 4, flange bolts 5, first through long bolts 6, second through long bolts 7 and short bolts 8.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary; while the advantages of the invention will be apparent and readily appreciated by the description.
The large-diameter steel pipe rod test combination conversion base mainly comprises a long steel beam, a short steel beam, a bolt and the like. And according to the overload working condition load of the test, stress calculation is carried out on each component of the test combination conversion base, the specific size of each component is determined so as to meet the structural safety, and lofting and blanking are carried out on each component according to the stress calculation result.
The short steel beams 3 are arranged on the basic steel beams 4 of the test base station according to the stress direction of the test working condition, the long side direction is the bending moment direction of the test working condition, the distance between the short steel beams is adjusted, the transverse distance meets the transverse assembling requirement of the three long steel beams 2, and the longitudinal distance meets the bolt distance requirement of two ends of the long steel beams 2. The two ends of the short steel beam 3 are respectively connected and fixed with the test station foundation steel beam 4 through a second common bolt 7 and a short bolt 8.
Referring to FIGS. 1-14: a large-diameter steel pipe pole test combined conversion base for a power transmission line comprises a cylindrical large-diameter test steel pipe pole 1, a long steel beam 2, a short steel beam 3, a test station foundation steel beam 4 and flange bolts 5;
the large-diameter experimental steel pipe rod 1 is positioned above the three long steel beams 2 which are transversely arranged, two ends of each long steel beam 2 are positioned on the short steel beam 3, two ends of each short steel beam 3 are positioned on the two test station basic steel beams 4, and the test station basic steel beams 4 are positioned above the ground.
The three long steel beams 2 are spliced into a rectangular structure according to the sequence of B-A-B (in detail, as shown in FIG. 2, the three same long steel beams 2 are spliced with each other, bolt holes in the three long steel beams 2 enclose a circle, and the shape of the bolt holes is matched with that of the large-diameter experimental steel pipe rod 1 which is arranged above and is round in bottom); so that the whole top plate of the long steel beam is provided with bolt holes distributed annularly. The large-diameter experimental steel pipe pole 1 periphery be provided with a plurality of whole annular bolt hole 1.1, the external diameter D of bolt hole 1.1 be greater than 300 millimeters more than.
Each long steel beam 2 consists of an upper top plate 2.1, a lower bottom plate 2.2, a web plate 2.3 and a ribbed plate 2.4;
And two ends of the web plate 2.3 are provided with three construction hoisting holes 2.3.1 with the diameter of 32 millimeters.
the space and the distribution radius of the bolt holes 1.1 are consistent with the conditions of flange bolts 5 at the bottom of the large-diameter experimental steel pipe rod 1 so as to meet the requirement of connection with the large-diameter experimental steel pipe rod 1 at the upper part of the top plate, the diameter and the quantity meet the test stress requirement of the large-diameter experimental steel pipe rod 1, and the flange bolts 5 penetrate through an upper top plate 2.1 and a lower bottom plate 2.2 of the long steel beam 2; the thicknesses of the upper top plate 2.1 and the lower bottom plate 2.2 are calculated and determined by the bending moment of the test overload working condition,
The thicknesses of the upper top plate 2.1 and the bottom plate 2.2 are calculated and determined by bending moments of test overload working conditions, the bending moment at the bottom of the large-diameter test steel pipe rod 1 is about 30000 and 45000kN. meters, and the plate thickness t0 can be 50-60 meters according to different test bending moments; the end opposite sides of the upper top plate 2.1 are distributed with 1 row of horizontal bolt holes 2.1.1, the end opposite sides of the lower bottom plate 2.2 are distributed with 2 rows of horizontal bolt holes 2.1.1, the bolt hole directions are all vertical to the long side direction of the short steel beam 3, the bolt hole distance between the horizontal bolt holes 2.1.1 is consistent with the short steel beam 3, a first through long bolt 6 and a second through long bolt 7 are adopted to be connected with the middle part of the short steel beam 3, two ends of the lower bottom plate 2.2 are also provided with 1 row of holes for the second through long bolt 7 of the short steel beam 3, the diameter is not less than 140 meters, so as to ensure that the long steel beam 2 can be horizontally placed on the upper part of the short steel beam 3. The thicknesses and the heights of the web plate 2.3 and the ribbed plate 2.4 are calculated and determined according to the bottom bending moment of the test overload working condition, so that the stress buckling is avoided, and the thicknesses are not less than 1/3 of the thickness of the top plate; (see the utility model for the details of the advantages 3)
The intersection of each upper top plate 2.1, web 2.3, rib plate 2.4 and the lower bottom plate 2.2 is at 45 degrees; so as to ensure that the welding seams of the web plate, the top plate and the bottom plate are communicated; 3 construction hoisting holes with the diameter of 32 meters are arranged at two ends of the web plate, so that the on-site installation of the combined base on the test site is facilitated.
The steel beam structure is characterized in that a row of horizontal bolt holes 2.1.1 are distributed on the opposite side of the end part of the upper top plate 2.1, a row of horizontal bolt holes 2.1.1 are distributed on the opposite side of the end part of the lower bottom plate 2.2, the arrangement direction of the bolt holes of the horizontal bolt holes 2.1.1 is perpendicular to the long side direction of the short steel beam 3, and the distance between the horizontal bolt holes 2.1.1 is consistent.
The short steel beam 3 comprises a short steel beam upper top plate 3.1, a short steel beam lower bottom plate 3.2, a short steel beam web plate 3.3 and a short steel beam rib plate 3.4; the thicknesses of the upper short steel beam top plate 3.1 and the lower short steel beam bottom plate 3.2 are 0.8 times larger than those of the upper top plate 2.1 and the lower bottom plate 2.2, and the thicknesses of the upper short steel beam top plate 3.1 and the lower short steel beam bottom plate 3.2 are not less than 50 mm.
The large-diameter experimental steel pipe rod 1 is fixed with the long steel beam 2 which is transversely arranged through a flange bolt 5, and the flange bolt 5 penetrates through the long steel beam 2 and is fixed with the lower bottom plate 2.2;
The long steel beam 2 is fixed with the short steel beam 3 through a first through long bolt 6, and the first through long bolt 6 sequentially penetrates through the long steel beam 2 and the short steel beam 3 and is fixed with the short steel beam lower bottom plate 2.2;
The lower bottom plate 2.2 is fixed with the short steel beam 3 through a second long through bolt 7; the short steel beam 3 and the test station foundation steel beam 4 are fixed through a short bolt 8.
The diameters of the first through long bolt 6, the second through long bolt 7 and the short bolt 8 are not less than 0.8 part of the diameter of the flange bolt 5; the aperture of the horizontal bolt hole 2.1.1 is 1.25 parts of the diameter of the first through long bolt 6, the second through long bolt 7 and the short bolt 8, and the distance between the adjacent horizontal bolt holes 2.1.1 is not less than 250 mm.
The above-mentioned parts not described in detail are prior art.
Claims (7)
1. The utility model provides a transmission line major diameter steel pipe pole test combination conversion base which characterized in that: the large-diameter experimental steel pipe comprises a cylindrical large-diameter experimental steel pipe rod (1), a long steel beam (2), a short steel beam (3), a test station foundation steel beam (4) and a flange bolt (5);
The large-diameter experimental steel pipe rod (1) is positioned above the three transversely arranged long steel beams (2), two ends of each long steel beam (2) are positioned on the short steel beams (3), two ends of each short steel beam (3) are positioned on the two test station basic steel beams (4), and the test station basic steel beams (4) are positioned above the ground.
2. The large-diameter steel pipe pole test combined conversion base of the power transmission line according to claim 1, characterized in that: the three long steel beams (2) are spliced into a rectangular structure; the large-diameter experimental steel pipe pole (1) periphery be provided with a plurality of whole annular bolt hole (1.1), the external diameter D of bolt hole (1.1) be greater than 300 millimeters more than.
3. the large-diameter steel pipe pole test combined conversion base of the power transmission line according to claim 1 or 2, which is characterized in that: each long steel beam (2) consists of an upper top plate (2.1), a lower bottom plate (2.2), a web plate (2.3) and a rib plate (2.4);
The intersection of each upper top plate (2.1), the web plate (2.3) and the rib plate (2.4) and the lower bottom plate (2.2) is at 45 degrees;
And three construction hoisting holes (2.3.1) with the diameter of 32 millimeters are arranged at two ends of the web plate (2.3).
4. the large-diameter steel pipe pole test combined conversion base of the power transmission line according to claim 3, characterized in that: the steel beam structure is characterized in that a row of horizontal bolt holes (2.1.1) are distributed on the opposite side of the end of the upper top plate (2.1), a row of horizontal bolt holes (2.1.1) are distributed on the opposite side of the end of the lower bottom plate (2.2), a row of horizontal bolt holes (2.1.1) are distributed on the opposite side of the end of the lower bottom plate, the bolt hole arrangement directions of the horizontal bolt holes (2.1.1) are perpendicular to the long side direction of the short steel beam (3), and the distance between the horizontal bolt holes (2.1.1) is consistent with the distance between the bolt.
5. The large-diameter steel pipe pole test combined conversion base of the power transmission line according to claim 4, characterized in that: the short steel beam (3) comprises a short steel beam upper top plate (3.1), a short steel beam lower bottom plate (3.2), a short steel beam web plate (3.3) and a short steel beam rib plate (3.4); the thickness of the short steel beam upper top plate (3.1) and the short steel beam lower bottom plate (3.2) is 0.8 times larger than that of the upper top plate (2.1) and the lower bottom plate (2.2), and the thickness of the short steel beam upper top plate (3.1) and the short steel beam lower bottom plate (3.2) is not less than 50 mm.
6. The large-diameter steel pipe pole test combined conversion base of the power transmission line according to claim 5, characterized in that: the large-diameter experimental steel pipe rod (1) is fixed with the long steel beam (2) which is transversely arranged through a flange bolt (5), and the flange bolt (5) penetrates through the long steel beam (2) and is fixed with the lower bottom plate (2.2);
The long steel beam (2) is fixed with the short steel beam (3) through a first through long bolt (6), and the first through long bolt (6) sequentially penetrates through the long steel beam (2) and the short steel beam (3) and is fixed with the short steel beam lower bottom plate (2.2);
The lower bottom plate (2.2) is fixed with the short steel beam (3) through a second long through bolt (7); the short steel beam (3) and the test station foundation steel beam (4) are fixed through a short bolt (8).
7. the large-diameter steel pipe pole test combined conversion base of the power transmission line according to claim 6, characterized in that: the diameters of the first through long bolt (6), the second through long bolt (7) and the short bolt (8) are not less than 0.8 part of the diameter of the flange bolt (5); the aperture of the horizontal bolt hole (2.1.1) is 1.25 parts of the diameter of the first through-length bolt (6), the second through-length bolt (7) and the short bolt (8), and the distance between the adjacent horizontal bolt holes (2.1.1) is not less than 250 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920748431.4U CN209745544U (en) | 2019-05-22 | 2019-05-22 | Experimental combination conversion base of transmission line major diameter steel pipe pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920748431.4U CN209745544U (en) | 2019-05-22 | 2019-05-22 | Experimental combination conversion base of transmission line major diameter steel pipe pole |
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| Publication Number | Publication Date |
|---|---|
| CN209745544U true CN209745544U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920748431.4U Active CN209745544U (en) | 2019-05-22 | 2019-05-22 | Experimental combination conversion base of transmission line major diameter steel pipe pole |
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| CN (1) | CN209745544U (en) |
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- 2019-05-22 CN CN201920748431.4U patent/CN209745544U/en active Active
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