CN210104823U - Load conversion device for pile foundation torsion test - Google Patents
Load conversion device for pile foundation torsion test Download PDFInfo
- Publication number
- CN210104823U CN210104823U CN201920795003.7U CN201920795003U CN210104823U CN 210104823 U CN210104823 U CN 210104823U CN 201920795003 U CN201920795003 U CN 201920795003U CN 210104823 U CN210104823 U CN 210104823U
- Authority
- CN
- China
- Prior art keywords
- load
- torsion test
- conversion device
- pile foundation
- plate
- 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
Abstract
The utility model discloses a load conversion device for pile foundation torsion test, this load conversion device by lotus support plate, fixed plate, half buckle ring body, dense floor, set up screw, screw hole etc. and constitute. The load conversion device for the pile foundation torsion test of the utility model converts the tangential load acting on the load bearing plate into torque to act on the pile body, and can solve the problem of torque loading of the pile foundation torsion test under the field condition; meanwhile, the load conversion device for the pile foundation torsion test can improve the maximum loading limit value of the torsion test; additionally, adopt the utility model discloses torsion test's load conversion device can be simplified torsion test's step, utilizes major diameter pile foundation torsion test's implementation under the site condition.
Description
The technical field is as follows:
the utility model belongs to industry and civil architecture foundation pile detection area relate to as building single pile torsion test, especially relate to a stake torsion test load conversion device.
Background art:
normally, the pile foundation mainly bears the loads of pressing, pulling up and transversely pushing, and only the three loads are considered and checked naturally during the design of the pile foundation. Therefore, the existing prototype load tests aiming at obtaining the design parameters of the pile foundation mainly comprise a vertical compression-resistant static load test, a vertical pulling-resistant static load test and a horizontal static load test, and are listed in JGJ106-2014 building foundation pile detection technical specifications. However, when the heliostat of the tower-type solar power station adopts a pile-integrated foundation scheme, the wind load acting on the mirror surface will cause the pile-integrated foundation to be distorted. In order to ensure the light condensation effect of the heliostat, the design of the heliostat needs to twist and check the pile-column integrated foundation. In order to obtain design parameters required by the torsion checking calculation, torsion tests of the part of the pile body exposed out of the ground and the part of the pile body buried under the ground need to be carried out. The torsion test of the part exposed out of the ground focuses on the deformation condition of the pile body under the action of the torsion load, and can be carried out by improving an indoor torsion machine; the torsion test of the part buried under the ground focuses on the relative deformation condition between the pile body and the soil body around the pile under the action of the torsion load, and a prototype test needs to be carried out due to the relation of foundation soil. At present, the results of the torsional load test of the pile foundation prototype are difficult to retrieve. If the pile foundation torsion test under the field condition is carried out according to the idea of carrying the indoor material torsion test, the indoor torsion machine does not need to be comprehensively transformed from the aspects of loading range, loading machine scale and the like, the field assembly and control difficulty of the torsion machine needs to be greatly reduced, a large amount of manpower and material resources need to be invested in the process, and the process is not economical.
The indoor torsion test equipment has high cost, complex structure and great operation difficulty, and is difficult to apply to the torsion load of the prototype pile under the field condition. Therefore, it is necessary to comprehensively study a test method and a test apparatus for a pile foundation prototype torsional load test.
The utility model has the following contents:
an object of the utility model is to provide a load conversion device for pile foundation torsion test realizes easy operation and low-cost that pile foundation twists reverse prototype test torsional load and applys. The utility model relates to a tangential load that will act on overhanging load-bearing board turns into the load conversion device that the moment of torsion acted on the pile body, and the adjustment that the mode was applyed to the moment of torsion makes pile foundation torsion test's realization degree of difficulty reduce by a wide margin under the site conditions, and loading range and loading machines yardstick are all widened by a wide margin simultaneously.
In order to achieve the purpose, the utility model adopts the following technology to realize:
a load conversion device for a pile foundation torsion test comprises two bearing retaining rings, wherein the two bearing retaining rings are oppositely buckled and connected through a fastener to form a cavity structure for tightly fastening a pile body; each bearing retaining ring comprises a load bearing plate, a half retaining ring body, dense rib plates and a fixing plate, wherein the load bearing plate is arranged on the outer wall of the arc-shaped half retaining ring body and is arranged along the radial direction; the fixing plate is arranged at the arc-shaped end part of the half retaining ring body and is arranged along the radial direction; the load carrying plate and the fixed plate are fixedly connected with the half buckle ring body through the dense rib plates; the fixing plate is provided with a mounting hole for connecting a fastener.
The cavity structure is matched with the structure of the pile body and is circular or polygonal.
The half buckle body is of a semicircular structure.
The load plate is arranged on the arc-shaped middle point of the half retaining ring body.
The dense rib plate is of an arc-shaped structure, one end of the dense rib plate is connected with the half buckle ring body, and the other end of the dense rib plate is connected with the load bearing plate or the fixing plate.
The dense rib plates are arranged in a plurality of numbers, and the dense rib plates are arranged on the half buckle ring body at equal intervals.
The load bearing plate, the half buckle body, the dense rib plates and the fixing plate are all made of steel plates with the strength and quality grade not lower than Q345B.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model is formed by connecting two same bearing buckles through fastening screws, adopts a load bearing plate to bear tangential load, and converts the load into torque to be transmitted to a half buckle ring body; adopting a half-retaining ring body to tightly retain the pile body, and loading the torque transmitted by the loading plate to the pile body; fastening the semi-fastening ring body to the pile body by adopting a fixing plate, a fastening screw and a screw hole; the rigidity of the connecting part of the load carrying plate and the fixing plate and the half buckle body 1 is enhanced by adopting the dense rib plates, and the deformation of the load conversion device in the torsion test process is reduced. The utility model discloses a load conversion device can reduce pile body moment of torsion under the site conditions by a wide margin and apply the degree of difficulty and apply the cost. The torsion test of the pile foundation under the field condition can be developed at low cost and high efficiency by means of the load conversion device, the calculation theory and the torsion resistance detection method of the integral foundation torsion resistance design of the heliostat pile are facilitated to be perfected, and the torsion resistance test device has important practical value and theoretical significance.
Description of the drawings:
FIG. 1 is an elevational plan view of a load conversion device for a pile foundation torsion test;
FIG. 2 is a plan top view of a load conversion device for a pile foundation torsion test;
FIG. 3 is a sectional view A-A' of an elevation plan view of a load conversion device for a pile foundation torsion test;
fig. 4 is a sectional view B-B' of a plan view of a load conversion device in a pile foundation torsion test.
In the figure: 1 is a retaining ring; 2 is a load plate; 3 is a fixing plate; 4 is a dense rib plate; and 5, a fastener.
The specific implementation mode is as follows:
in the following, the technical solutions in the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and the embodiments described herein are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
The utility model relates to a pile foundation torsion test's load conversion device is formed through setting up screwed connection by two the same bearing buckles, and every bears the buckle including carrying board 2, half buckle body 1, dense floor 4, fixed plate 3 and fastener 5. The load conversion device is used for converting tangential loads applied by the loading device and the counterforce device into torque and applying the torque to the pile body. The load conversion device is used for converting tangential load acting on a load bearing plate into torque to act on a pile body.
The two bearing retaining rings are oppositely buckled and connected through a fastener 5 to form a cavity structure for tightly buckling the pile body; each bearing retaining ring comprises a load bearing plate 2, a half retaining ring body 1, dense rib plates 4 and a fixing plate 3, wherein the load bearing plate 2 is arranged on the outer wall of the arc-shaped half retaining ring body 1 and is arranged along the radial direction; the fixing plate 3 is arranged at the arc-shaped end part of the half buckle ring body 1 and is arranged along the radial direction; the load bearing plate 2 and the fixed plate 3 are both connected with the half buckle ring body 1 through a dense ribbed plate 4 in a reinforcing way; the fixing plate 3 is provided with a mounting hole for connecting the fastener 5.
Specifically, the half clasp body 1 is of a semicircular structure. The loading plate 2 is arranged on the middle point of the arc of the half buckle ring body 1. The dense rib plate 4 is of an arc structure, one end of the dense rib plate 4 is connected with the half buckle body 1, and the other end is connected with the load carrying plate 2 or the fixing plate 3. The dense rib plates 4 are arranged in a plurality, and the dense rib plates 4 are arranged on the half buckle body 1 at equal intervals.
The cavity structure is matched with the structure of the pile body, and the cavity structure is circular or polygonal. The polygon is triangle, diamond, square, etc.
The device adopts a load bearing plate 2 to bear tangential load, converts the load into torque and transmits the torque to the half buckle ring body 1;
the device adopts the half-buckle ring body 1 to tightly buckle the pile body, and loads the torque transmitted by the loading plate 2 to the pile body;
the device adopts a fixing plate 3, a fastening screw and a screw hole to fasten the half buckle ring body 1 to the pile body;
the device adopts the dense rib plates 4 to enhance the rigidity of the connecting parts of the load carrying plate 2 and the fixed plate 3 with the half buckle body 1, and reduces the deformation of the load conversion device in the torsion test process.
The load bearing plate 2, the half buckle body 1, the dense rib plates 4 and the fixed plate 3 are all made of steel plates with strength and quality grade no less than Q345B; the fastening screw is made of high-strength bolt strength.
Before a pile foundation torsion test is carried out, materials required by a loading load bearing plate 2, a half buckle ring body 1, a dense rib plate 4, a fixing plate 3, a fastening screw and a screw hole are selected according to the relevant requirements, load size and pile body size of GB/T700 and 2006 carbon structural steel, and a load conversion device is processed according to the relevant requirements of GB 50661 and 2011 steel structure welding specification and according to the figures 1-4.
Referring to fig. 1, leveling the terrace within 2.0m around the pile, attaching two bearing retaining rings to the pile body, aligning with the screw holes reserved on the fixing plate 3, tightening the fastening screws 5 to ensure that the half retaining ring body 1 fastens the pile body, and completing the load conversion device of the pile foundation torsion test.
Referring to fig. 2, the dense rib plates 4 enhance the rigidity of the connection between the load carrying plate 2 and the fixing plate 3 and the half clasp body 1, and reduce the deformation of the load conversion device in the torsion test process.
Referring to fig. 2, after the above steps are completed, one load carrying plate 2 is fixed, and tangential load is applied to one load carrying plate 2 and is converted into torque at the half buckle body 1.
Referring to fig. 2, torque is applied to the pile body through the half fastening ring body 1, and the application of torque of a pile foundation torsion test is achieved.
The load carrying plate 2 is made of a steel plate with the strength and quality grade no less than Q345B, bears tangential load, converts the load into torque and transmits the torque to the retaining ring;
the half buckling ring body 1 is made of a steel plate with the strength and quality grade not inferior to Q345B, is tightly buckled with the pile body, and loads the torque transmitted by the load bearing plate to the pile body;
the fixing plate 2 is made of a steel plate with strength and quality grade no lower than Q345B, the fastening screw is made of high-strength bolts, and the fastening screw is screwed into a screw hole reserved on the fixing plate to enable the retaining ring to fasten the pile body;
the dense rib plate 4 is made of a steel plate with the strength and quality grade no less than Q345B, the rigidity of the connection part of the load bearing plate and the fixing plate with the retaining ring is enhanced, and the deformation of the load conversion device in the torsion test process is reduced.
The load conversion device for the pile foundation torsion test is completely constructed through the steps. Under field conditions, the prototype pile generally has the characteristics of large size, strong torsion resistance, small torsion deformation and the like. The load conversion device for the pile foundation torsion test realizes the change of a pile body torque application mode, has low tangential load application difficulty, is easy to adjust the load range, the pile body size and the self anti-deformation capacity of the device by combining the actual test conditions, and can greatly reduce the equipment assembly and control difficulty of the pile foundation torsion test.
The utility model discloses pile foundation torsion test's load conversion device's physical principle does: torque is a special moment in physics, equal to the product of force and moment arm. If a tangential load is applied to one load bearing plate and the other load bearing plate is fixed, the tangential load applied to the load bearing plate is converted into a torque to be applied to the pile body.
The above description is provided for the purpose of describing the present invention in more detail with reference to the specific preferred embodiments, and it should not be construed that the present invention is limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in various forms without departing from the spirit and scope of the present invention.
Claims (7)
1. A load conversion device for a pile foundation torsion test is characterized by comprising two bearing retaining rings, wherein the two bearing retaining rings are oppositely buckled and connected through a fastener (5) to form a cavity structure for tightly fastening a pile body; each bearing retaining ring comprises a bearing plate (2), a half retaining ring body (1), dense rib plates (4) and a fixing plate (3), wherein the bearing plate (2) is arranged on the outer wall of the arc-shaped half retaining ring body (1) and is arranged along the radial direction; the fixing plate (3) is arranged at the arc-shaped end part of the half buckle ring body (1) and is arranged along the radial direction; the load bearing plate (2) and the fixed plate (3) are fixedly connected with the half buckle ring body (1) through the dense rib plates (4); the fixing plate (3) is provided with a mounting hole for connecting the fastener (5).
2. The load conversion device for the pile foundation torsion test is characterized in that the cavity structure is matched with the structure of the pile body, and the cavity structure is circular or polygonal.
3. The load conversion device for the pile foundation torsion test is characterized in that the half clasp body (1) is of a semicircular structure.
4. The load conversion device for the pile foundation torsion test is characterized in that the load bearing plate (2) is arranged at the middle point of the arc of the half clasp body (1).
5. The load conversion device for the pile foundation torsion test is characterized in that the dense rib plates (4) are of arc-shaped structures, one end of each dense rib plate (4) is connected with the half buckle body (1), and the other end of each dense rib plate (4) is connected with the load bearing plate (2) or the fixing plate (3).
6. The load conversion device for the pile foundation torsion test is characterized in that a plurality of the dense rib plates (4) are arranged, and the dense rib plates (4) are arranged on the half fastening ring body (1) at equal intervals.
7. The load conversion device for the pile foundation torsion test is characterized in that the load bearing plate (2), the half clasp body (1), the rib plates (4) and the fixing plate (3) are all made of steel plates with the strength and quality grade not lower than Q345B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795003.7U CN210104823U (en) | 2019-05-28 | 2019-05-28 | Load conversion device for pile foundation torsion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795003.7U CN210104823U (en) | 2019-05-28 | 2019-05-28 | Load conversion device for pile foundation torsion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210104823U true CN210104823U (en) | 2020-02-21 |
Family
ID=69563985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920795003.7U Active CN210104823U (en) | 2019-05-28 | 2019-05-28 | Load conversion device for pile foundation torsion test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210104823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397199A (en) * | 2022-01-08 | 2022-04-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Method for testing torsion resistance of pile body |
-
2019
- 2019-05-28 CN CN201920795003.7U patent/CN210104823U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397199A (en) * | 2022-01-08 | 2022-04-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Method for testing torsion resistance of pile body |
| CN114397199B (en) * | 2022-01-08 | 2023-09-01 | 中国电力工程顾问集团西北电力设计院有限公司 | Pile torsion resistance testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104121155B (en) | One kind can be assembled from vertical wind driven generator group prestressed concrete steel combination pylon and its anchoring process | |
| CN101812842B (en) | Tensionless filling pile structure | |
| CN109162306B (en) | Uneven settlement correcting device for communication iron tower and using method thereof | |
| CN206034642U (en) | Steel column flange formula splicing joint | |
| CN210104823U (en) | Load conversion device for pile foundation torsion test | |
| CN205188954U (en) | Novel reinforced concrete prefabrication side stake pile extension structure | |
| CN109592580A (en) | Large-tonnage tower crane super large load attached wall structure method for rapidly mounting in a kind of strong wind atmosphere | |
| CN205329738U (en) | Novel umbelliform ground bearing capacity detecting device | |
| CN101736751A (en) | Connecting structure between wind measurement tower and pile foundation of offshore wind power station | |
| CN208379604U (en) | The stiffening device of bracing members and steel purlin junction | |
| CN206707932U (en) | The antifatigue combining structure wind tower of prestressing force | |
| CN101942835B (en) | Heavy-load composite function anchoring device for scaffold | |
| CN204385762U (en) | A kind of Rock Bolt Foundation structure | |
| CN207032842U (en) | A kind of anchor ear device for pile tube operating platform | |
| CN211006741U (en) | Reinforced structure of P & H type rock stock fan foundation | |
| CN111894049A (en) | Loading device and test equipment for foundation pile compression-resistant static load test | |
| CN111332964A (en) | Steel reinforced column wall-attached device and construction method thereof | |
| CN206504845U (en) | A kind of cushion cap for concrete filled steel tube shock test | |
| CN205907703U (en) | Electric power tower pole base apparatus | |
| CN110984612A (en) | Steel column correcting and fixing structure | |
| CN105464151A (en) | Precast pile pulling resistance testing device | |
| CN202729673U (en) | H-shaped steel single-foot mast | |
| CN219031599U (en) | Reinforcing device for preventing typhoon adhesion of large tower crane | |
| CN218205899U (en) | Basement engineering structure junction antiseep patching device | |
| CN206279855U (en) | Rod-adjurstable formula steel column correcting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |