CN211773963U - Vertical resistance to plucking static load test device of bored concrete pile single pile - Google Patents
Vertical resistance to plucking static load test device of bored concrete pile single pile Download PDFInfo
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- CN211773963U CN211773963U CN202020219245.4U CN202020219245U CN211773963U CN 211773963 U CN211773963 U CN 211773963U CN 202020219245 U CN202020219245 U CN 202020219245U CN 211773963 U CN211773963 U CN 211773963U
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Abstract
The utility model relates to a vertical resistance to plucking static load test device of bored concrete pile single pile, the device include two inner steel rings and two outer steel rings, two inner steel rings are circled down the symmetry and are set up and leave the difference in height, and two inner steel ring both sides weld many steel columns respectively and are used for two inner steel ring symmetric positioning, overlap the same in height respectively in two inner steel ring outsides outer steel ring, outer steel ring inner wall with steel column welding, the opposite face of upper and lower two inner steel rings seals with a steel sheet respectively, and traditional test device atress is uneven, the problem of welding difficulty has been solved to this scheme.
Description
Technical Field
The utility model relates to a bored concrete pile detection area, concretely relates to vertical resistance to plucking static load test device of bored concrete pile single pile.
Background
The existing single-pile vertical pulling-resistant static load test mainly has two test device modes: the first is that two jacks with the same specification and model are connected in parallel and are respectively arranged at two ends of a main beam, and the same oil pressure gauge and an oil pump are used for pressurization. The method mainly has the problems that the stress of the two jacks is possibly inconsistent, so that the strokes of the two jacks are inconsistent, and the unbalance loading or the maximum test load cannot be reached; the second is to use two main beams, a jack, and a steel bar to connect the uplift pile and the main beam. The method mainly has the problems of high welding difficulty, large welding workload, long time consumption and uneven stress possibly caused by deformation or different lengths of the steel bars.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a vertical resistance to plucking static load test device of bored concrete pile single pile, solved the problem of traditional test device atress inequality, welding difficulty.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a vertical resistance to plucking static load test device of bored concrete pile single pile, the device includes two inner steel rings and two outer steel rings, and the upper and lower symmetry sets up and leaves the difference in height in two inner steel rings, and two inner steel ring both sides weld many steel columns respectively and be used for two inner steel ring symmetric positioning, and two inner steel ring outsides overlap one height-alike respectively outer steel ring, outer steel ring inner wall with the steel column welding, the opposite face of two inner steel rings is sealed with a steel sheet respectively from top to bottom.
The advantage of this scheme lies in having built a symmetry resistance to plucking and having connected, the resistance to plucking that comprises interior steel ring and outer steel ring and steel sheet promptly connects, because two resistance to plucking connect symmetries about the test in-process, consequently do not divide from top to bottom, select arbitrary one end and the concrete bored concrete pile single pile steel bar welding that needs the test, then utilize crossbeam and jack to jack up the resistance to plucking joint of top upwards, thereby can test the vertical resistance to plucking dead load of concrete bored concrete pile single pile, the device only adopts a jack atress balanced, and during the welding will be tested concrete bored concrete pile single pile steel bar welding the lateral wall that resistance to plucking connects can.
Furthermore, at least five steel columns are arranged on each side of the steel column, and two ends of the steel column are flush with the end faces of the upper inner steel ring and the lower inner steel ring respectively.
Furthermore, the inner wall of the inner steel ring is provided with reinforcing ribs which are distributed in a shape like a Chinese character mi. The design is to strengthen the stress strength of the inner steel ring and avoid deformation.
Further, the diameter of the steel plate is equal to the outer diameter of the inner steel ring.
And furthermore, the steel ring sealing device further comprises a jack and a cross beam, wherein during the test, the cross beam is positioned between the two inner steel rings, and the jack is arranged on the cross beam and used for jacking upwards in the test process and exerting force on the upper inner steel ring sealing steel plate.
Further, the thickness of the inner steel ring is the same as that of the outer steel ring.
Further, the diameter and the length of the steel column are completely the same.
The utility model has the advantages that:
(1) the performance is reliable, the structure is simple, the symmetrical structure can be used up and down, and the strength is ensured;
(2) labor cost and time cost are greatly reduced;
(3) the problems of uneven stress, unbalance loading and the like are solved, the obtained detection result is more accurate, and the detection quality is ensured;
(4) can be widely applied to the uplift resistance test of the reinforced concrete filling pile.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a top view of the inner and outer rims after assembly.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in figure 1, the vertical anti-pulling static load test device for the single concrete cast-in-place pile comprises two inner steel rings 1 and two outer steel rings 2, wherein the two inner steel rings 1 are arranged up and down symmetrically and are provided with a section of height. The height can be reasonably set according to the load range. A plurality of steel columns 5 are welded on two sides of two inner steel rings 1 respectively and used for symmetrically positioning the two inner steel rings 1, outer steel rings 2 with the same height are sleeved on the outer sides of the two inner steel rings 1 respectively, the inner walls of the outer steel rings 2 are welded with the steel columns 5, and the opposite surfaces of the upper inner steel ring 1 and the lower inner steel ring 1 are sealed by a steel plate 3 respectively. As shown in fig. 3, a plurality of steel columns 5 are uniformly distributed on two sides between the inner steel ring 1 and the outer steel ring 2, preferably, at least five steel columns 5 are arranged on each side, each two steel columns 5 are welded on two sides of the inner steel ring 1, two ends of each steel column 5 are respectively flush with the end surfaces of the upper inner steel ring 1 and the lower inner steel ring 1, ten steel columns 5 are designed in the embodiment, and five steel columns are distributed on two sides. Finally, an anti-pulling device similar to a Chinese character jing is formed, namely an upper anti-pulling joint and a lower anti-pulling joint are respectively formed, and the two anti-pulling joints are connected through a steel column 5. Finally, this scheme still includes jack 6 and crossbeam 7, and during the experiment, crossbeam 7 is located between two inner steel ring 1, sets up a jack 6 on the crossbeam 7 for jack-up upwards in the testing process, the inner steel ring 1 that forces on the top seals steel sheet 3. In the test process, the device is placed right above a test pile, the steel bars exposed out of the test pile and the outer side wall of the outer steel ring 2 positioned at the lower anti-pulling joint are welded together in an overlapping mode, the cross beam 7 penetrates through the hollow part of the device, the jack 6 is placed in the center of the cross beam 7, and the jack 6 abuts against the center of the steel plate 3 of the upper anti-pulling joint. In the loading process, the jack 6 applies load to the upper anti-pulling joint, the load is transmitted to the lower anti-pulling joint through the steel column 5, and the lower anti-pulling joint is connected with the test pile, so that the upward load acts on the test pile to pull the test pile. As a preferred embodiment, the inner wall of the inner steel ring 1 is provided with reinforcing ribs 4, and the reinforcing ribs 4 are distributed in a shape like a Chinese character mi. The diameter of the steel plate 3 is equal to the outer diameter of the inner steel ring 1, and the thickness of the inner steel ring 1 is equal to that of the outer steel ring 2. The diameter and the length of the steel column 5 are completely the same.
The following are reference data of the elements in this embodiment:
the outer diameter is 800mm, the wall thickness is 5mm, the outer steel ring 2 with the height of 300mm and the inner steel ring 1 with the outer diameter of 680mm, the wall thickness is 5mm and the height of 300 mm; a steel column 5 with the diameter of 50mm and the length of 1700 mm; a steel plate 3 having a diameter of 680mm and a thickness of 20 mm; and reinforcing ribs 4 with the height of 30mm and the thickness of 5 mm. Finally, a cylindrical uplift test device with the height of 1700mm, the diameter of 800mm, the internal clearance height of 1000mm and the width of 450mm is formed.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. The utility model provides a vertical resistance to plucking static load test device of bored concrete pile single pile, its characterized in that, the device include two interior steel ring (1) and two outer steel ring (2), steel ring (1) longitudinal symmetry sets up and leave the difference in height in two, and steel ring (1) both sides are welded many steel columns (5) respectively in two and are used for steel ring (1) symmetric positioning in two, and steel ring (1) outside overlaps one height-alike respectively in two outer steel ring (2), outer steel ring (2) inner wall with steel column (5) welding, the opposite face of steel ring (1) seals with a steel sheet (3) respectively in two from top to bottom.
2. The vertical uplift static load test device for the cast-in-place concrete pile single pile according to claim 1, wherein at least five steel columns (5) are arranged on each side, and two ends of each steel column (5) are respectively flush with the end surfaces of the upper inner steel ring (1) and the lower inner steel ring (1).
3. The vertical uplift static load test device for the cast-in-place concrete pile is characterized in that reinforcing ribs (4) are arranged on the inner wall of the inner steel ring (1), and the reinforcing ribs (4) are distributed in a shape like a Chinese character mi.
4. The vertical uplift static load test device for the cast-in-place concrete pile single pile is characterized in that the diameter of the steel plate (3) is equal to the outer diameter of the inner steel ring (1).
5. The vertical uplift static load test device for the cast-in-place concrete pile single pile according to any one of claims 1 to 4, characterized by further comprising a jack (6) and a cross beam (7), wherein during the test, the cross beam (7) is positioned between the two inner steel rings (1), the jack (6) is arranged on the cross beam (7) and used for jacking upwards in the test process, and the sealing steel plate (3) of the upper inner steel ring (1) is stressed.
6. The vertical uplift static load test device for the cast-in-place concrete pile single pile is characterized in that the thicknesses of the inner steel ring (1) and the outer steel ring (2) are the same.
7. The vertical anti-pulling static load test device for the cast-in-place concrete pile single pile according to claim 1, wherein the diameter and the length of the steel column (5) are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020219245.4U CN211773963U (en) | 2020-02-27 | 2020-02-27 | Vertical resistance to plucking static load test device of bored concrete pile single pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020219245.4U CN211773963U (en) | 2020-02-27 | 2020-02-27 | Vertical resistance to plucking static load test device of bored concrete pile single pile |
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| Publication Number | Publication Date |
|---|---|
| CN211773963U true CN211773963U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020219245.4U Active CN211773963U (en) | 2020-02-27 | 2020-02-27 | Vertical resistance to plucking static load test device of bored concrete pile single pile |
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|---|---|
| CN (1) | CN211773963U (en) |
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2020
- 2020-02-27 CN CN202020219245.4U patent/CN211773963U/en active Active
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