CN210194709U - Static load anti-pulling test structure of cast-in-situ bored pile - Google Patents
Static load anti-pulling test structure of cast-in-situ bored pile Download PDFInfo
- Publication number
- CN210194709U CN210194709U CN201921045068.6U CN201921045068U CN210194709U CN 210194709 U CN210194709 U CN 210194709U CN 201921045068 U CN201921045068 U CN 201921045068U CN 210194709 U CN210194709 U CN 210194709U
- Authority
- CN
- China
- Prior art keywords
- cast
- bored pile
- situ bored
- steel
- anchoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a bored concrete pile static load resistance to plucking test structure. Comprises safety buttresses (10) arranged at two sides of a cast-in-situ bored pile (9), and steel beams (3) arranged on the two safety buttresses (10); the steel bar head reserved on the cast-in-situ bored pile (9) is fixedly connected with the bottom end of the threaded steel (8) through the anchoring plate (5) and the anchoring head (4); a jack (2) is arranged on the steel beam (3) at a position corresponding to the cast-in-situ bored pile (9), and an anchoring beam (1) is arranged on the jack (2); the top end of the threaded steel (8) is fixedly connected with the anchoring beam (1) through a fastening nut (6) and a fastening gasket (7). The utility model abandons the welding mode in the traditional test, saves time and labor, is simple and efficient, and avoids the problems which are easy to appear in the conventional test mode; can provide enough large counter force and completely meet the requirements of static load uplift tests of the cast-in-situ bored pile.
Description
Technical Field
The utility model relates to a static load resistance to plucking test device specifically is a drilling bored concrete pile static load resistance to plucking test structure.
Background
The cast-in-situ bored pile can be used for manufacturing large-diameter foundation piles due to convenient construction, and is widely applied to the fields of municipal engineering, traffic engineering, industrial and civil building engineering and the like.
The difficulty in the prior art is that for the welding of a reaction frame after construction and the welding of vertical tension steel bars and pile head steel bars in a static load uplift test of a cast-in-situ bored pile, labor and force are wasted, and the vertical tension steel bars and a pile head steel bar are welded and fixed, so that time is delayed, the quality problem of a welding seam is easily caused, the influence of external factors is large, the labor cost is high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
Problem to above-mentioned prior art exists, the utility model provides a bored concrete pile static load resistance to plucking test structure effectively solves current tester's confusion, does not need the welding to can provide enough big counter-force, satisfy bored concrete pile static load resistance to plucking experimental demand completely.
In order to achieve the purpose, the utility model provides a static load uplift test structure of a cast-in-situ bored pile, which comprises safety buttresses arranged at two sides of the cast-in-situ bored pile and steel beams arranged on the two safety buttresses;
the reinforcing steel bar head reserved on the cast-in-situ bored pile is fixedly connected with the bottom end of the threaded steel through the anchoring plate and the anchoring head;
a jack is arranged on the steel beam at a position corresponding to the cast-in-situ bored pile, and an anchoring beam is arranged on the jack;
the top end of the threaded steel with the screw thread is fixedly connected with the anchoring beam through a fastening nut and a fastening gasket.
Further, an inner circle and an outer circle of oblong fixing holes are formed in the circumferential direction of the anchoring plate;
and the reinforcing steel bar head reserved on the cast-in-situ bored pile and the bottom end of the threaded steel penetrate through the fixing hole formed in the anchoring plate and are fixedly connected through the anchor head.
Further, the anchoring beam is a rectangular plate with two groups of U-shaped openings symmetrically arranged on two short sides;
the top end of the threaded steel with the thread penetrates through the U-shaped opening and is fixedly connected with the anchoring beam through a fastening nut and a fastening gasket, and the height of the threaded steel with the thread is conveniently adjusted due to the fact that the threaded steel with the thread is threaded through the long thread
Furthermore, the threaded steel with the threads is four self-threaded high-strength threaded steel bars with the diameter of 30-40mm and the length of 3 m.
Furthermore, the length of the steel bar reserved on the cast-in-situ bored pile is 0.5 m.
Compared with the prior art, the static load uplift test structure of the cast-in-situ bored pile has the following beneficial effects:
1. the structure is connected through anchoring, a welding mode in the traditional test is abandoned, time and labor are saved, simplicity and high efficiency are realized, and the problem which is easy to occur in the conventional test mode is avoided;
2. the anchoring connection mode of the structure can provide enough large counter force and completely meet the requirements of static load uplift tests of the cast-in-situ bored piles.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention;
fig. 2 is a schematic structural view of the anchoring beam of the present invention;
FIG. 3 is a schematic structural view of the anchoring plate of the present invention;
in the figure: 1. the anchor beam 2, the jack 3, the steel beam 4, the anchor head 5, the anchor plate 6, the fastening nut 7, the fastening gasket 8, the threaded steel with screw 9, the bored pile 10, the safety buttress 11, the U-shaped opening 12 and the fixing hole.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the static load anti-pulling test structure of the cast-in-situ bored pile comprises safety buttresses 10 arranged at two sides of the cast-in-situ bored pile 9 and steel beams 3 placed on the two safety buttresses 10;
the reinforcing steel bar head reserved on the cast-in-situ bored pile 9 is fixedly connected with the bottom end of the threaded steel 8 through the anchoring plate 5 and the anchoring head 4;
a jack 2 is arranged on the steel beam 3 corresponding to the cast-in-situ bored pile 9, and an anchoring beam 1 is arranged on the jack 2;
the top end of the threaded steel 8 is fixedly connected with the anchoring beam 1 through a fastening nut 6 and a fastening gasket 7.
Further, an inner circle and an outer circle of oblong fixing holes 12 are formed in the circumferential direction of the anchoring plate 5;
the reinforcing steel bar head reserved on the cast-in-situ bored pile 9 and the bottom end of the threaded steel 8 penetrate through the fixing hole 12 formed in the anchoring plate 5 and are fixedly connected through the anchor head 4. According to the sizes of different cast-in-situ bored piles 9, different fixing holes 12 are selected to fix the applicable threaded steel 8 and the steel bar heads reserved on the cast-in-situ bored piles 9.
Further, the anchoring beam 1 is a rectangular plate with two groups of U-shaped openings 11 symmetrically arranged on two short sides;
the top end of the threaded steel 8 penetrates through the U-shaped opening 11 and is fixedly connected with the anchoring beam 1 through a fastening nut 6 and a fastening gasket 7. The threaded steel 8 with the wire is convenient to place and fix.
Further, the threaded steel 8 with the threads is four self-threaded high-strength threaded steel bars with the diameter of 30-40mm and the length of 3 m. When the structure is operated on site, the threaded steel 8 with the threads of two specifications can be selected, one of the threaded steel 8 with the diameter of 40mm and the bearing tension of 1400kN or the threaded steel with the diameter of 32mm and the bearing tension of 600 kN.
Further, the length of the steel bar reserved on the cast-in-situ bored pile 9 is 0.5 m.
Before the static load uplift test structure of the cast-in-situ bored pile is built, site survey is firstly carried out, and the ground endurance capacity is replaced by 600kN/m2The field of (1). When in construction, a steel plate with the thickness of 470 multiplied by 660 multiplied by 50mm is prepared in advance to be used as an anchoring beam 1, and a U-shaped opening 11 is cut through a wire; 780 × 780 × 50mm steel plates were used as the anchor plates 5, and about 16 long holes of 30 × 80mm were drilled in the axial direction of the anchor plates 5 as fixing holes 12 according to the size of the steel reinforcement cage of the bored pile, for a total of two circles.
Placing the prepared steel beam 3 on a safety buttress 10 which is arranged in advance, placing a jack 2 on the steel beam 3, and placing an anchoring beam 1 on the jack 2; the reinforcing steel bar head reserved on the cast-in-situ bored pile 9 and the bottom end of the threaded steel 8 penetrate through a fixing hole 12 formed in the anchoring plate 5 and are fixedly connected through the anchor head 4; during anchor beam 1 was arranged in on U type opening 11 on to the top of threaded steel 8, through fastening nut 6 and fastening shim 7 and anchor beam 1 fastening connection, to this whole structure anchor completion, exerted force to whole structure through jack 2, and then applyed the counter-force to bored concrete pile 9, can realize carrying out the resistance to plucking static load test to bored concrete pile.
Compared with the existing structure, no matter how firm the welding is, no matter how strong the welding structure is, no help is provided, under very small pulling force, the welding seam is not cracked, or the steel bar is broken, the pulling-resistant bearing capacity of the bored pile cannot be tested at all.
In conclusion, the static load uplift resistance test structure of the cast-in-situ bored pile abandons a welding mode in the traditional test, is time-saving, labor-saving, simple, convenient and efficient, and avoids the problems which are easy to occur in the conventional test mode; can provide enough big counter-force, has satisfied the requirement of test drilling bored concrete pile resistance to plucking static loading completely.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A static load uplift test structure of a cast-in-situ bored pile is characterized in that,
comprises safety buttresses (10) arranged at two sides of a cast-in-situ bored pile (9), and steel beams (3) arranged on the two safety buttresses (10);
the steel bar head reserved on the cast-in-situ bored pile (9) is fixedly connected with the bottom end of the threaded steel (8) through the anchoring plate (5) and the anchoring head (4);
a jack (2) is arranged on the steel beam (3) at a position corresponding to the cast-in-situ bored pile (9), and an anchoring beam (1) is arranged on the jack (2);
the top end of the threaded steel (8) is fixedly connected with the anchoring beam (1) through a fastening nut (6) and a fastening gasket (7).
2. The cast-in-situ bored pile dead load anti-pulling test structure according to claim 1,
the circumferential direction of the anchoring plate (5) is provided with an inner circle and an outer circle of oblong fixing holes (12);
the bottom ends of the steel bar heads and the threaded steel (8) reserved on the cast-in-situ bored pile (9) penetrate through the fixing holes (12) formed in the anchoring plate (5) and are fixedly connected through the anchor heads (4).
3. The cast-in-situ bored pile dead load anti-pulling test structure according to claim 1,
the anchoring beam (1) is a rectangular plate with two groups of U-shaped openings (11) symmetrically arranged on two short sides;
the top end of the threaded steel (8) penetrates through the U-shaped opening (11) and is fixedly connected with the anchoring beam (1) through a fastening nut (6) and a fastening gasket (7).
4. The bored pile dead load anti-pulling test structure according to claim 1, 2 or 3,
the threaded steel (8) with the threads is four self-threaded high-strength threaded steel bars with the diameter of 30-40mm and the length of 3 m.
5. The cast-in-situ bored pile dead load anti-pulling test structure according to claim 1 or 2,
the length of the steel bar reserved on the cast-in-situ bored pile (9) is 0.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045068.6U CN210194709U (en) | 2019-07-05 | 2019-07-05 | Static load anti-pulling test structure of cast-in-situ bored pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045068.6U CN210194709U (en) | 2019-07-05 | 2019-07-05 | Static load anti-pulling test structure of cast-in-situ bored pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210194709U true CN210194709U (en) | 2020-03-27 |
Family
ID=69870238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921045068.6U Active CN210194709U (en) | 2019-07-05 | 2019-07-05 | Static load anti-pulling test structure of cast-in-situ bored pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210194709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302063A (en) * | 2020-10-29 | 2021-02-02 | 上海勘察设计研究院(集团)有限公司 | Twisted steel anchoring device and mounting method |
-
2019
- 2019-07-05 CN CN201921045068.6U patent/CN210194709U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302063A (en) * | 2020-10-29 | 2021-02-02 | 上海勘察设计研究院(集团)有限公司 | Twisted steel anchoring device and mounting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210194710U (en) | Hollow precast pile static load pulling resistance test structure | |
| CN100567659C (en) | The base configuration of iron tower | |
| CN103485374B (en) | Static load test anchor pile connecting structure | |
| CN210194709U (en) | Static load anti-pulling test structure of cast-in-situ bored pile | |
| CN201310102Y (en) | Static load test conversion beam | |
| CN213204233U (en) | Anchor pile counter-force beam device | |
| CN108930267A (en) | A kind of anchor pile structure and single pile bearing capacity device | |
| CN218479224U (en) | Anti-pulling device for concrete filling pile | |
| CN219298289U (en) | Square pile anti-pulling detection experimental device | |
| CN219080443U (en) | Staple bolt formula prestressing force tubular pile resistance to plucking detection device | |
| CN218580925U (en) | L-shaped assembled wall transverse steel concrete combined pipe member | |
| CN215925950U (en) | Pressure-bearing type uplift pile precast pile connecting structure | |
| CN104775457A (en) | Base pile pulling-resistant test device | |
| CN215165496U (en) | Precast pile with preset grouting pipe | |
| CN203569595U (en) | Static load test anchoring pile connecting structure | |
| CN106801428A (en) | Reinforced tensile-shear PHC pipe pile foundation structure and construction method thereof | |
| CN216552121U (en) | Pile foundation axial uplift static load test loading connecting device | |
| CN217379022U (en) | Uplift pile bearing capacity detection test device | |
| CN208379655U (en) | A kind of static load pullout tests quick-fitting device | |
| CN212896516U (en) | Novel experimental dowel bar anchor clamps of combination formula anchor pile | |
| CN209066515U (en) | A kind of detachable tubular pole static test tube pile connection device and complete set of equipments | |
| CN217782169U (en) | Cast-in-place pile uplift test device | |
| CN220789730U (en) | Connecting node of prefabricated upright post pile | |
| CN203530972U (en) | Novel compound anchor rod | |
| CN220318599U (en) | Anchor pile reinforcing steel bar and counter-force beam connecting device for large pile foundation static load test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 6, Chengjiang Road, Yunlong District, Xuzhou City, Jiangsu Province 221000 Patentee after: China National Testing and Testing Holding Group Xuzhou Co.,Ltd. Address before: 221000 1-101, building 52 (original w18), qinshuiwan Commercial Plaza, Yunlong District, Xuzhou City, Jiangsu Province Patentee before: China Building Material Test and Certification Group Co.,Ltd. |
|
| CP03 | Change of name, title or address |