CN216132684U - Steel sling bearing tension test device - Google Patents
Steel sling bearing tension test device Download PDFInfo
- Publication number
- CN216132684U CN216132684U CN202122774429.4U CN202122774429U CN216132684U CN 216132684 U CN216132684 U CN 216132684U CN 202122774429 U CN202122774429 U CN 202122774429U CN 216132684 U CN216132684 U CN 216132684U
- Authority
- CN
- China
- Prior art keywords
- steel
- sling
- finish rolling
- spiral
- test device
- 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
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a steel sling holds tensile test device, including two spiral steel pipes and spiral steel pipe base, two spiral steel pipes pass through semi-circular staple bolt anchor parallel fixation on spiral steel pipe base, settle respectively at two spiral steel pipe's both ends has a shoulder pole roof beam, the centre of every shoulder pole roof beam all is provided with a finish rolling screw-thread steel mounting hole, wear to be equipped with the finish rolling screw-thread steel of a screw thread in the finish rolling screw-thread steel mounting hole, the screw steel pipe end that is close to of finish rolling screw-thread steel is connected with the sling connector, the nut is installed to the other end of finish rolling screw-thread steel, be used for connecting the installation steel sling between two sling connectors, install the punching jack on the finish rolling screw-thread steel between nut and the shoulder pole roof beam, it is equipped with the steel backing plate to fill up between nut and the punching jack. The device is suitable for pre-tensioning the large-size steel sling, takes the spiral steel pipe as a reaction frame, and verifies whether the tensile force of the steel sling can meet the requirement through tensioning the center-penetrating jack.
Description
Technical Field
The utility model relates to the technical field of tension test equipment, in particular to a steel sling tensile force bearing test device.
Background
The hanging basket is a construction machine which can bear construction load and the self weight of a beam body and can move forward section by section when being used for pouring concrete beams such as a diagonal draw structure, a T structure and a continuous beam in a cantilever pouring method. The steel hanging strip is a main stressed component of the hanging basket, and is used for connecting the bottom basket and the main truss into a whole, so that the steel hanging strip plays an important role in bearing and transmitting load.
Steel slings often require pre-tension testing prior to use to obtain deformation data and eliminate inelastic deformation. If not pre-compaction, the uncontrollable deflection of steel suspender will be unfavorable for roof beam body linear control during the use, finally may lead to roof beam body segment dislocation, closes up a section elevation deviation scheduling problem to take place.
The steel sling is generally subjected to overall structure preloading (pretensioning) inspection together with the rest structures of the hanging basket after being assembled. However, the whole preloading (pretensioning) cannot be performed due to the limitation of the conditions such as the field, the time and the like, or when the pretensioning object is a spare steel sling, the steel sling needs to be tensioned separately to check the bearing force. The steel hanging strip used for the hanging basket has a large size due to the fact that the steel hanging strip needs to bear large weight, the length of a single steel hanging strip is usually several meters, and the pretensioning load of the steel hanging strip is often as high as hundreds of thousands of newtons. The conventional tensioning device is mainly used for tensioning steel strands, steel bars and the like, has small specification and cannot be used for verifying whether the tensile force of the steel sling can meet the requirement. Therefore, it is necessary to develop a tensile test device suitable for large-size steel straps.
Disclosure of Invention
The utility model aims to provide a steel sling tensile force test device which is suitable for pre-tensioning large-size steel slings, takes spiral steel pipes as a reaction frame, and verifies whether the tensile force of the steel slings can meet the requirements through tensioning of a penetrating jack.
In order to realize the purpose of the utility model, the technical scheme is as follows:
a steel sling tensile test device comprises two spiral steel pipes and a spiral steel pipe base, wherein the two spiral steel pipes are fixed on the spiral steel pipe base in parallel through a semicircular hoop anchor which can be made of materials such as reinforcing steel bars and steel strands, two ends of each spiral steel pipe are respectively provided with a carrying pole beam, the middle of each carrying pole beam is provided with a finish rolling deformed steel bar mounting hole, a threaded finish rolling deformed steel bar is arranged in each finish rolling deformed steel bar mounting hole in a penetrating mode, the end, close to the spiral steel pipe, of the finish rolling deformed steel bar is connected with a sling connector, the other end of the finish rolling deformed steel bar is provided with a nut, a steel sling is connected and mounted between the two sling connectors, two ends of the steel sling are respectively connected and fixed with the sling connectors, a center-penetrating jack is mounted on the finish rolling deformed steel bar between the nut and the carrying pole beam, and a steel cushion plate is arranged between the nut and the center-penetrating jack, the steel backing plate is provided with a through hole, the finish rolling deformed steel bar passes through the through hole, the piercing jack is only arranged on the finish rolling deformed steel bar at one end of the spiral steel pipe, and the piercing jack can not be arranged on the finish rolling deformed steel bar at the other end. The length of the spiral steel pipes is larger than that of the steel hanging strip, the two spiral steel pipes are horizontally arranged, and the end parts of the two spiral steel pipes are cut flat. When in use, the steel sling is placed at the equal-height position of the axis between the two spiral steel pipes, and two ends of the steel sling are respectively connected with a finish-rolled deformed steel bar through a sling connector; after the finish-rolled deformed steel bar at one end of the steel sling passes through the finish-rolled deformed steel bar mounting hole of the carrying pole beam, the finish-rolled deformed steel bar at the other end of the steel sling passes through the finish-rolled deformed steel bar mounting hole of the carrying pole beam, a center-penetrating jack is mounted on the finish-rolled deformed steel bar, a steel base plate is mounted, and finally the steel base plate is fastened through a nut; the steel sling can be pulled by applying a pulling force to the finish-rolled deformed steel bar by the penetrating jack, the pretension inspection of the steel sling is realized, and whether the tensile force of the steel sling can meet the requirement is verified.
Further preferred is: a base plate is padded between the shoulder pole beam and the ends of the two spiral steel pipes.
Further preferred is: the spiral steel pipe base is built by concrete and is fixedly installed on the hardened ground through base anchor bars.
Further preferred is: the carrying pole beam comprises two I-shaped steels which are arranged in parallel, splicing steel plates are welded on the upper surfaces and the lower surfaces of the two I-shaped steels respectively, and a finish rolling deformed steel bar mounting hole is formed in the splicing steel plates on the upper surfaces and the lower surfaces between the two I-shaped steels.
Further preferred is: the shoulder pole beam is provided with a plurality of stiffening plates.
This steel sling holds tensile test device's advantage does:
1. the device has simple structure and simple and convenient manufacture, takes the spiral steel pipe as the support frame and the reaction frame, has extremely high bearing capacity, and can effectively ensure the safety and the reliability of the loading process.
2. The device applies prestress to the steel sling by pulling the finish rolling deformed steel bar through the center-penetrating jack, and can realize the bearing tension test on the steel sling with different sizes by adjusting the length of the finish rolling deformed steel bar, thereby having better universality.
3. Except the concrete base, the rest parts of the device can be recycled and reused, and the device is energy-saving and environment-friendly and has better economical efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the steel sling tensile test device;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic structural view of a base of a spiral steel pipe;
fig. 4 is a schematic structural view of the shoulder pole beam;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a left side schematic view of FIG. 4;
the names corresponding to the sequence numbers in the figure are:
1. a spiral steel pipe; 2. a spiral steel pipe base; 3. a steel sling; 4. a sling connector; 5. finish rolling the deformed steel bar; 6. a nut; 7. a shoulder pole beam; 8. semicircular hoop anchors; 9. hardening the ground; 10. a base anchor bar; 11. a stiffening plate; 12. i-shaped steel; 13. finish rolling the deformed steel bar mounting hole; 14. splicing steel plates; 15. a base plate; 16. a center-penetrating jack; 17. a steel backing plate.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the following describes the technical solutions clearly and completely with reference to the embodiments.
Example 1
A steel sling tensile test device comprises two spiral steel pipes 1 and a spiral steel pipe base 2, wherein the two spiral steel pipes 1 are fixed on the spiral steel pipe base 2 in parallel through a semicircular hoop anchor 8, the semicircular hoop anchor 8 can be made of materials such as reinforcing steel bars and steel strands, two ends of each spiral steel pipe 1 are respectively provided with a carrying pole beam 7, the middle of each carrying pole beam 7 is provided with a finish rolling deformed steel bar mounting hole 13, a threaded finish rolling deformed steel bar 5 penetrates through the finish rolling deformed steel bar mounting hole 13, the end of the finish rolling deformed steel bar 5 close to the spiral steel pipe 1 is connected with a sling connector 4, the other end of the finish rolling deformed steel bar 5 is provided with a nut 6, a steel sling 3 is connected and mounted between the two sling connectors 4, two ends of the steel sling 3 are respectively connected and fixed with the sling connectors 4, a through center jack 16 is mounted on the finish rolling deformed steel bar 5 between the nut 6 and the carrying pole beams 7, a steel backing plate 17 is padded between the nut 6 and the piercing jack 16. The length of the spiral steel pipes 1 is larger than that of the steel hanging strips 3, the two spiral steel pipes 1 are horizontally arranged, and the end parts are cut flat. The steel sling 3 is placed at the equal-height position of the axis between the two spiral steel pipes 1.
A backing plate 15 is padded between the shoulder pole beam 7 and the ends of the two spiral steel pipes 1.
Example 2
A steel sling tensile test device comprises two spiral steel pipes 1 and a spiral steel pipe base 2, wherein the two spiral steel pipes 1 are fixed on the spiral steel pipe base 2 in parallel through a semicircular hoop anchor 8, the semicircular hoop anchor 8 can be made of materials such as reinforcing steel bars and steel strands, two ends of each spiral steel pipe 1 are respectively provided with a carrying pole beam 7, the middle of each carrying pole beam 7 is provided with a finish rolling deformed steel bar mounting hole 13, a threaded finish rolling deformed steel bar 5 penetrates through the finish rolling deformed steel bar mounting hole 13, the end of the finish rolling deformed steel bar 5 close to the spiral steel pipe 1 is connected with a sling connector 4, the other end of the finish rolling deformed steel bar 5 is provided with a nut 6, a steel sling 3 is connected and mounted between the two sling connectors 4, two ends of the steel sling 3 are respectively connected and fixed with the sling connectors 4, a through center jack 16 is mounted on the finish rolling deformed steel bar 5 between the nut 6 and the carrying pole beams 7, a steel backing plate 17 is padded between the nut 6 and the piercing jack 16. The length of the spiral steel pipes 1 is larger than that of the steel hanging strips 3, the two spiral steel pipes 1 are horizontally arranged, and the end parts are cut flat. The steel sling 3 is placed at the equal-height position of the axis between the two spiral steel pipes 1.
A backing plate 15 is padded between the shoulder pole beam 7 and the ends of the two spiral steel pipes 1.
The spiral steel pipe base 2 is built by concrete, and the spiral steel pipe base 2 is fixedly installed on a hardened ground 9 through base anchor bars 10.
The carrying pole beam 7 comprises two I-shaped steels 12, the two I-shaped steels 12 are arranged in parallel, splicing steel plates 14 are welded to the upper surface and the lower surface of each I-shaped steel 12 respectively, and a finish-rolled deformed steel bar mounting hole 13 is formed in each splicing steel plate 14 between the two I-shaped steels 12.
And a plurality of stiffening plates 11 are arranged on the shoulder pole beam 7.
The above description is not intended to limit the present application, and the present application is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions or substitutions within the spirit and scope of the present application.
Claims (5)
1. The utility model provides a steel sling holds tensile test device which characterized in that: the steel tube bundle comprises two spiral steel tubes (1) and a spiral steel tube base (2), the two spiral steel tubes (1) are fixed on the spiral steel tube base (2) in parallel through semicircular hoop anchors (8), two ends of each spiral steel tube (1) are respectively provided with a carrying pole beam (7), a finish rolling deformed steel bar mounting hole (13) is formed in the middle of each carrying pole beam (7), a finish rolling deformed steel bar (5) with threads penetrates through the finish rolling deformed steel bar mounting hole (13), the end, close to the spiral steel tube (1), of the finish rolling deformed steel bar (5) is connected with a sling connector (4), a nut (6) is installed at the other end of the finish rolling deformed steel bar (5), a steel sling (3) is connected and installed between the two sling connectors (4), a center penetrating jack (16) is installed on the finish rolling deformed steel bar (5) between the nut (6) and the carrying pole beam (7), and a steel base plate (17) is arranged between the nut (6) and the center penetrating jack (16) in a cushioning mode.
2. The steel sling tensile test device according to claim 1, which is characterized in that: a cushion plate (15) is padded between the shoulder pole beam (7) and the ends of the two spiral steel pipes (1).
3. The steel sling tensile test device according to claim 1, which is characterized in that: the spiral steel pipe base (2) is formed by building concrete, and the spiral steel pipe base (2) is fixedly installed on a hardened ground (9) through base anchor bars (10).
4. The steel sling tensile test device according to claim 1, which is characterized in that: the carrying pole beam (7) comprises two I-shaped steels (12), the two I-shaped steels (12) are arranged in parallel, splicing steel plates (14) are welded to the upper surface and the lower surface of the two I-shaped steels (12) respectively, and a finish-rolled deformed steel bar mounting hole (13) is formed in the splicing steel plates (14) between the upper surface and the lower surface of the two I-shaped steels (12).
5. The steel sling load bearing test device according to claim 4, wherein: a plurality of stiffening plates (11) are arranged on the shoulder pole beam (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122774429.4U CN216132684U (en) | 2021-11-13 | 2021-11-13 | Steel sling bearing tension test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122774429.4U CN216132684U (en) | 2021-11-13 | 2021-11-13 | Steel sling bearing tension test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216132684U true CN216132684U (en) | 2022-03-25 |
Family
ID=80778613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122774429.4U Active CN216132684U (en) | 2021-11-13 | 2021-11-13 | Steel sling bearing tension test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216132684U (en) |
-
2021
- 2021-11-13 CN CN202122774429.4U patent/CN216132684U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113454306B (en) | Integral lifting construction method and device for arch structure | |
| CN109750791B (en) | Assembled large cantilever steel structure | |
| CN101781936B (en) | Method and device for reinforcing beam by adopting prestressed carbon fiber plate | |
| CN105239559A (en) | Common deformed steel bar tensioning device, prefabricated square pile and process for prefabricated square pile | |
| CN110042767B (en) | Cable buckling and anchoring method of cable hoisting system | |
| KR101065217B1 (en) | Tension device for tension and retension | |
| CN216132684U (en) | Steel sling bearing tension test device | |
| CN214271702U (en) | Catwalk sag adjusting device for erecting main cable based on suspension bridge air spinning method | |
| CA3052369A1 (en) | Support of segmented structural design | |
| CN112376558A (en) | Anchor rope and anchor backing plate and anchor rope construction method | |
| CN201649685U (en) | Apparatus for reinforcing beam by a prestressed carbon fiber board | |
| CN113846868A (en) | Reinforcing device and reinforcing method based on multi-layer fiber cloth prestress application | |
| CN211947982U (en) | Lower part tensioning equipment for counter-force prepressing of continuous beam bracket | |
| KR100688333B1 (en) | Repair and reinforcement apparatus for slab and the method using thereof | |
| CN112302257A (en) | Pre-clamping device of clamping piece type anchorage device for FRP (fiber reinforced Plastic) | |
| CN221095238U (en) | Anchor pile beam counterforce device for large-tonnage single pile vertical compression-resistant static load test detection | |
| CN215329302U (en) | Curved pultruded arched beam structure | |
| CN220352642U (en) | Wire fixing device and high-strength steel wire anchor | |
| CN217231508U (en) | Prestressing force stretch-draw end changeover part and mounting structure | |
| CN219486102U (en) | Pretensioning method prefabricated hollow plate steel strand tensioning and releasing structure in bridge construction | |
| CN219344138U (en) | Actively reinforced portal steel frame structure and pre-tightening structure thereof | |
| CN215866158U (en) | Converter and support counter-pulling pre-pressing loading device | |
| CN218951976U (en) | Prestressing force loading system for temporary support construction | |
| CN114892548B (en) | Down-pressure type external prestress CFRP material reinforcing system and construction method thereof | |
| CN219045330U (en) | Purline reinforcing structure for steel structure roof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |