CN211622660U - Special intelligent tensioning system for transverse prestress - Google Patents
Special intelligent tensioning system for transverse prestress Download PDFInfo
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- CN211622660U CN211622660U CN201922484630.1U CN201922484630U CN211622660U CN 211622660 U CN211622660 U CN 211622660U CN 201922484630 U CN201922484630 U CN 201922484630U CN 211622660 U CN211622660 U CN 211622660U
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Abstract
The utility model discloses a special intelligent tensioning system of horizontal prestressing force, including prestressing force intelligence tensiometer, flat anchor whole bundle of tensioning jack, two be provided with the roof beam body between the flat anchor whole bundle of tensioning jack, the steel strand wires have transversely been interlude in roof beam body and the flat anchor whole bundle of tensioning jack, flat anchor whole bundle of tensioning jack top end fixedly connected with sensor module, sensor module comprises pressure sensor and displacement sensor, pressure sensor is located displacement sensor one side; prestressing force intelligence stretch-draw appearance comprises oil tank, backup pad, side shield, roof carriage, and oil tank upper end fixedly connected with backup pad and roof carriage, backup pad are located roof carriage one side, are provided with the side shield between backup pad and the roof carriage, and the oil tank top is located inside motor, the oil pump of being provided with of roof carriage. Through the cooperation of the intelligent prestress tensioning instrument and the flat anchor integral-bundle tensioning jack, the tensioning effect is better.
Description
Technical Field
The utility model relates to an intelligence stretch-draw system specifically is a special intelligent stretch-draw system of horizontal prestressing force.
Background
Prestressing force stretch-draw adds the pulling force in the component in advance for it bears compressive stress to be exerted prestressing force stretch-draw component, and then makes it produce certain deformation, deals with the load that structure itself received, load, wind load, snow load, earthquake load effect etc. including component self weight. Generally, the steel strand, the jack, the anchor plate and the clamping piece are used for tensioning. Before the engineering structural member bears external load, the steel strand in the tension module is applied with pre-stress, so that the bending resistance and rigidity of the member are improved, the time for crack occurrence is delayed, and the durability of the member is improved. In the mechanical structure, the stress is generated in advance, and the advantages of the mechanical structure are that the rigidity of the structure can be improved, the vibration and the elastic deformation are reduced, the elastic strength of the tension module can be obviously improved, and the original resistance is stronger.
However, the existing prestress tensioning effect is poor. Therefore, the skilled person provides a special intelligent tensioning system for transverse prestressing to solve the problems mentioned in the background art.
Disclosure of Invention
An object of the utility model is to provide a special intelligent stretch-draw system of horizontal prestressing force to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a special intelligent tensioning system for transverse prestress comprises a prestress intelligent tensioning instrument and a flat anchor whole bundle tensioning jack, wherein a beam body is arranged between the two flat anchor whole bundle tensioning jacks, steel stranded wires are transversely inserted into the beam body and the flat anchor whole bundle tensioning jack, a sensor module is fixedly connected to the top end of the flat anchor whole bundle tensioning jack, the sensor module consists of a pressure sensor and a displacement sensor, and the pressure sensor is positioned on one side of the displacement sensor;
prestressing force intelligence stretch-draw appearance comprises oil tank, backup pad, side shield, roof carriage, and oil tank upper end fixedly connected with backup pad and roof carriage, backup pad are located roof carriage one side, are provided with the side shield between backup pad and the roof carriage, and the oil tank top is located inside motor, the oil pump of being provided with of roof carriage.
As a further aspect of the present invention: and a working anchor is arranged between the flat anchor whole-bundle tensioning jack and the beam body.
As a further aspect of the present invention: the lower end of the oil tank is fixedly connected with a universal wheel, and one side of the oil tank is fixedly connected with a handle.
As a further aspect of the present invention: be provided with into oil pipe, play oil pipe, data cable between prestressing force intelligence tensiometer and the flat anchor whole bundle stretch-draw jack, advance oil pipe and be located play oil pipe one side, data cable is located out oil pipe and advances oil pipe on one side.
As a further aspect of the present invention: the motor is electrically connected with the oil pump.
As a further aspect of the present invention: the common specification of the flat anchor whole-bundle tensioning jack is 200mm, and the measurement range specification of the displacement sensor is 225 mm.
As a further aspect of the present invention: the top end of the top plate supporting frame is embedded with an industrial touch motor, the outer surface of the industrial touch motor is provided with a display screen and operation buttons, and the operation buttons are arranged on two sides of the display screen in a displacement mode.
Compared with the prior art, the beneficial effects of the utility model are that:
through the cooperation of the intelligent prestress tensioning instrument and the flat anchor integral-bundle tensioning jack, the tensioning effect is better.
Drawings
Fig. 1 is a schematic structural diagram of a special transverse prestress intelligent tensioning system.
Fig. 2 is a front view of a prestressed intelligent tensioning instrument in a transverse prestressed special intelligent tensioning system.
Fig. 3 is a side view of a prestressed intelligent tensioning instrument in a transverse prestressed special intelligent tensioning system.
In the figure: 1. a prestress intelligent tensioning instrument; 2. the flat anchor is integrally tied with a tensioning jack; 3. a beam body; 4. steel strand wires; 5. an oil inlet pipe; 6. an oil outlet pipe; 7. a data cable; 8. a working anchor; 9. a sensor module; 10. an oil tank; 11. a support plate; 12. a side dam; 13. a top plate support frame; 14. a display screen; 15. an operation button; 16. a universal wheel; 17. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-3, in the embodiment of the present invention, an intelligent tensioning system dedicated for transverse prestress comprises an intelligent prestressed tensioning instrument 1 and a flat anchor whole bundle tensioning jack 2, wherein a beam 3 is disposed between the two flat anchor whole bundle tensioning jacks 2, a steel strand 4 is transversely inserted into the beam 3 and the flat anchor whole bundle tensioning jack 2, a sensor module 9 is fixedly connected to the upper end of the flat anchor whole bundle tensioning jack 2, the sensor module 9 is composed of a pressure sensor and a displacement sensor, and the pressure sensor is located on one side of the displacement sensor;
prestressing force intelligence tensiometer 1 comprises oil tank 10, backup pad 11, side shield 12, roof carriage 13, and oil tank 10 upper end fixedly connected with backup pad 11 and roof carriage 13, and backup pad 11 is located roof carriage 13 one side, is provided with side shield 12 between backup pad 11 and the roof carriage 13, and oil tank 10 top is located inside motor, the oil pump of being provided with of roof carriage 13.
And a working anchor 8 is arranged between the flat anchor whole-bundle tensioning jack 2 and the beam body 3.
The lower end of the oil tank 10 is fixedly connected with a universal wheel 16, and one side of the oil tank 10 is fixedly connected with a handle 17.
Be provided with into oil pipe 5, play oil pipe 6, data cable 7 between prestressing force intelligence tensiometer 1 and flat anchor whole bundle stretch-draw jack 2, advance oil pipe 5 and be located 6 one sides of play oil pipe, data cable 7 is located play oil pipe 6 and advances oil pipe 5 one side.
The motor is electrically connected with the oil pump.
The common specification of the flat anchor whole-bundle tensioning jack 2 is 200mm, and the measurement range specification of the displacement sensor is 225 mm.
The top end of the top plate supporting frame 13 is inlaid with an industrial touch motor, the outer surface of the industrial touch motor is provided with a display screen 14 and operating buttons 15, and the operating buttons 15 displace the two sides of the display screen 14.
The utility model discloses a theory of operation is:
the measuring range of the pressure sensor is 60MPa, 24V power supply and 4-20mA output.
The common measuring range specification of the displacement sensor is 225mm, 5V power supply and 0-5V signal output.
The 2-tonnage range of the flat anchor whole-bundle tensioning jack is 25 tons to 150 tons, and the common stroke specification is 200 mm.
(Flat anchor integral tensioning jack for short jack)
No matter the system is in a manual or automatic state, when the extension amount of the jack piston reaches 180mm, oil feeding must be suspended, and an alarm prompt is sent to check the actual extension amount of the jack piston to prevent the jack from working beyond the stroke.
1. The precision of the tension force is +/-1.5 percent;
2. the synchronism error range of the tension forces at the two ends is +/-2%;
3. the error range of the actual elongation from the theoretical elongation is + -6%, and beyond this range, the reason for the tension inspection is stopped.
The common sectional target value is for the tensile force, the whole tensioning process is not always that the oil inlet reaches the tensile force of one hundred percent, and the common sectional target value is as follows: 10%, 20% and 100%; 15% to 30% to 100%; 10%, 20% and 50%; 50% to 100%; 15% to 30% to 50%; the segment target values can also be entered according to specific tensioning requirements.
Calculation of actual elongation: displacement value of 100% + displacement value of 20%, -displacement value of 2X 10%, -6; or a displacement value of 100% + 30% -a displacement value of 2X 15% -6.
Automatic tensioning state action sequence and notice:
1. filling in engineering information, and accessing the software interface of the upper computer
2. Software interface of upper computer for filling instrument information
3. Newly building a beam body template, inputting tensioning parameters, and referring to upper computer software tensioning process options
4. And (4) recording the beam number, selecting the built corresponding beam body template to enter a tensioning interface, and carrying out self-checking on the working state of the instrument, the working state of the electromagnetic valve, the displacement and pressure state of the system and giving a prompt.
And automatically detecting all normal beam parameters to be stretched, and popping up the beam parameters to be stretched, wherein the parameters comprise a stretching sequence, a stretching force, a segmented target value of the stretching force and a segmented load-holding time of the stretching force, so that an operator can conveniently check whether the parameters are correct or not.
5. And (4) electrifying the click system, and electrifying the frequency converter for waiting.
6. Initial stroke tensioning: clicking to start tensioning, resetting a displacement value, working an oil inlet valve, collecting pressure and displacement data in real time, storing the pressure and displacement data, drawing a pressure time curve and a displacement time curve, and when the pressure and displacement time curve is damaged by power failure, tripping and the like in the process, the data before being stored cannot be lost, and the tensioning can be continued according to the beam number after the power supply is recovered.
7. And (3) keeping the load for 10% of the segmented target value, stopping the oil inlet valve when the tensile force reaches 10%, keeping the load for 30S, automatically supplementing the pressure when the pressure is reduced to be lower than 1.5% of the target value in the process, and collecting and storing the displacement value 1S before the load is kept for later calculation of the actual elongation.
8. Tensioning in a second stroke: and (3) after 30S load holding is finished, the oil inlet valve works, pressure and displacement data are collected in real time and stored, a pressure time curve and a displacement time curve are drawn, the data before being stored cannot be lost when the pressure time curve and the displacement time curve are damaged due to power failure, tripping and the like in the process, and the tension can be continuously stretched according to the beam number after the power supply is recovered.
9. And (3) holding the load for 20% of the segmented target value, wherein the tensile force reaches 20%, the oil inlet valve stops, the load is held for 30S, if the pressure is reduced to be lower than 1.5% of the target value in the process, the oil inlet valve works to automatically supplement pressure, and the displacement value at the moment is collected and stored in the 1S mode before the load holding is finished and is used for calculating the actual elongation later.
10. Tensioning in the third stroke: and (3) after 30S load holding is finished, the oil inlet valve works, pressure and displacement data are collected in real time and stored, a pressure time curve and a displacement time curve are drawn, the data before being stored cannot be lost when the pressure time curve and the displacement time curve are damaged due to power failure, tripping and the like in the process, and the tension can be continuously stretched according to the beam number after the power supply is recovered. And in the oil inlet process of the third travel, the actual elongation and the theoretical elongation are checked, and when the deviation is more than 10%, prompt check is required to confirm whether to continue tensioning.
11. The 100% subsection target value is kept loaded, the tensile force reaches 100%, the oil inlet valve stops, the load is kept for 300S, if the pressure is reduced to be lower than 1.5% of the target value in the process, the oil inlet valve works to automatically supplement pressure, and the displacement value at the moment is collected and stored 1S before the load is kept, so that the displacement value is used for calculating the actual elongation.
12. Oil return: and after 300S load holding is finished, the oil return valve works, the pressure begins to drop, the jack piston retracts, the displacement value is reduced, when the displacement reaches 5mm, the oil return valve stops, the tensioning of one cycle is finished at the moment, and the system prompts the result of the tensioning, which comprises a theoretical elongation value, an actual elongation and the deviation of the theoretical elongation and the actual elongation.
13. And after the whole beam is tensioned, automatically generating a tensioning record table.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The intelligent tensioning system special for transverse prestress comprises a prestress intelligent tensioning instrument (1) and a flat anchor whole bundle tensioning jack (2), wherein a beam body (3) is arranged between the two flat anchor whole bundle tensioning jacks (2), steel stranded wires (4) are transversely inserted into the beam body (3) and the flat anchor whole bundle tensioning jack (2), the upper end of the flat anchor whole bundle tensioning jack (2) is fixedly connected with a sensor module (9), the sensor module (9) consists of a pressure sensor and a displacement sensor, and the pressure sensor is positioned on one side of the displacement sensor;
prestressing force intelligence stretch-draw appearance (1) comprises oil tank (10), backup pad (11), side shield (12), roof carriage (13), and oil tank (10) upper end fixedly connected with backup pad (11) and roof carriage (13), and backup pad (11) are located roof carriage (13) one side, are provided with side shield (12) between backup pad (11) and roof carriage (13), and oil tank (10) top is located roof carriage (13) inside and is provided with motor, oil pump.
2. The special intelligent tensioning system for transverse prestress according to claim 1, wherein a working anchor (8) is arranged between the flat anchor whole-bundle tensioning jack (2) and the beam body (3).
3. The special intelligent tensioning system for transverse prestress according to claim 1, wherein universal wheels (16) are fixedly connected to the lower end of the oil tank (10), and a handle (17) is fixedly connected to one side of the oil tank (10).
4. The special intelligent tensioning system for transverse prestress according to claim 1, wherein an oil inlet pipe (5), an oil outlet pipe (6) and a data cable (7) are arranged between the intelligent tensioning instrument for prestress (1) and the flat anchor whole-bundle tensioning jack (2), the oil inlet pipe (5) is located on one side of the oil outlet pipe (6), and the data cable (7) is located beside the oil outlet pipe (6) and the oil inlet pipe (5).
5. The special intelligent tensioning system for transverse prestress according to claim 1, wherein the motor is electrically connected with an oil pump.
6. The special intelligent tensioning system for transverse prestress according to claim 1, wherein the common specification of the flat anchor whole-bundle tensioning jack (2) is 200mm, and the range specification of a displacement sensor is 225 mm.
7. The special intelligent tensioning system for transverse prestress according to claim 1, wherein an industrial touch motor is embedded at the top end of the top plate supporting frame (13), a display screen (14) and operation buttons (15) are arranged on the outer surface of the industrial touch motor, and the operation buttons (15) are arranged on two sides of the display screen (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484630.1U CN211622660U (en) | 2019-12-30 | 2019-12-30 | Special intelligent tensioning system for transverse prestress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484630.1U CN211622660U (en) | 2019-12-30 | 2019-12-30 | Special intelligent tensioning system for transverse prestress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211622660U true CN211622660U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922484630.1U Active CN211622660U (en) | 2019-12-30 | 2019-12-30 | Special intelligent tensioning system for transverse prestress |
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| Country | Link |
|---|---|
| CN (1) | CN211622660U (en) |
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2019
- 2019-12-30 CN CN201922484630.1U patent/CN211622660U/en active Active
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