CN211978557U - Loading device for measuring working bending moment of reinforced concrete pure camber beam - Google Patents
Loading device for measuring working bending moment of reinforced concrete pure camber beam Download PDFInfo
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- CN211978557U CN211978557U CN202020176099.1U CN202020176099U CN211978557U CN 211978557 U CN211978557 U CN 211978557U CN 202020176099 U CN202020176099 U CN 202020176099U CN 211978557 U CN211978557 U CN 211978557U
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Abstract
The utility model relates to a reinforced concrete pure camber beam work bending moment is measured and is used load lotus device, including hanging the seat, connect pressure sensor, distribution girder steel and two supporting platform that are equipped with the slide rail on hanging the seat through pressing the cylinder, sliding connection has the supporting seat of setting for a dog on the slide rail, and the both sides of pressing the cylinder body of cylinder respectively are connected with a cover and establish the level on the jib and hang the pole, and the upper end of jib is connected with suspension nut, lower extreme and links together with the distribution girder steel, and the both ends of distribution girder steel respectively are equipped with one and press the briquetting, and pressure sensor is located directly over the middle part of distribution girder steel, the below of the middle part of distribution girder steel is connected with the weight. The utility model has the advantages of can treat the pure camber beam of reinforced concrete that detects and apply load, thereby solved and lacked the device of applying load to the pure camber beam of reinforced concrete and lead to measuring the inconvenient problem of pure camber beam work moment of flexure.
Description
Technical Field
The utility model relates to a reinforced concrete roof beam detects technical field, especially relates to a pure camber beam of reinforced concrete work moment of flexure is measured with loading lotus device.
Background
The structure is consolidated and is reformed transform and have important meaning to city extension, nevertheless to existing building structure consolidation and transformation have the risk higher, new technology many, manage and control characteristics such as difficulty. Therefore, the diagnosis and monitoring of the stress working state of the member by using technical means in the design and construction are problems which need to be faced and solved urgently by related engineering personnel. At present, some relevant research documents for determining the stress state of concrete by using the ultrasonic wave speed have been published at home and abroad, but due to the nonlinear material characteristics of concrete, the methods are feasible only when the compressive stress is within the range of 30-40% of the ultimate compressive strength. The method is used for measuring the working bending moment of the reinforced concrete pure camber beam based on the wave velocity and the crack width, when the working bending moment of the reinforced concrete pure camber beam is measured, a downward pressing load is required to be applied to the middle of the reinforced concrete pure camber beam to simulate the load of the reinforced concrete pure camber beam, two ultrasonic transducers distributed along the reinforced concrete pure camber beam are installed on the upper side of the reinforced concrete pure camber beam for detection, two ultrasonic transducers distributed along the reinforced concrete pure camber beam are installed on the lower side of the reinforced concrete pure camber beam for detection, and then the working bending moment of the reinforced concrete pure camber beam is calculated according to the applied load and the wave velocity sound energy measured by the ultrasonic transducers. However, the corresponding tool is not needed to apply load to the reinforced concrete pure camber beam to be detected, so that the inconvenience in measuring the working bending moment is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a load device is used in measurement of pure camber beam work moment of bending of reinforced concrete for treating the pure camber beam of reinforced concrete that detects and apply load has solved and has lacked thereby inconvenient problem when leading to measuring pure camber beam work moment of bending of reinforced concrete to the pure camber beam of reinforced concrete device of applying load.
The technical problem is solved by the following technical scheme: a load loading device for measuring the working bending moment of a reinforced concrete pure camber beam comprises a suspension seat, a downward telescopic pressing air cylinder, a distribution steel beam extending along the left-right direction and two supporting platforms distributed on the left side and the right side below the suspension seat, wherein an avoidance space is formed between the two supporting platforms, a sliding rail extending along the left-right direction is arranged on each supporting platform, a supporting seat is connected on each sliding rail in a sliding manner, one end, away from the avoidance space, of each supporting seat is provided with a positioning stop block, the cylinder body of the pressing air cylinder is connected with the suspension seat, the piston rod of the pressing air cylinder is connected with a pressure sensor, the left side and the right side of the cylinder body of the pressing air cylinder are respectively connected with a horizontal suspension rod, each horizontal suspension rod is provided with a suspension rod in a penetrating manner, the upper end of each suspension rod is in threaded connection with a suspension nut, the pressure sensor is positioned right above the middle part of the distribution steel beam, and a heavy hammer is connected below the middle part of the distribution steel beam through a sling. When the device is used, the two ends of the reinforced concrete pure camber beam are supported on the two supporting seats and are abutted with the positioning stop blocks, and then the supporting seats are slid to move the reinforced concrete pure camber beam to align the middle point of the reinforced concrete pure camber beam with the hammer. Two ultrasonic transducers in the 4 ultrasonic transducers are fixed on the upper side surface of the reinforced concrete pure camber beam, and the other two ultrasonic transducers are fixed on the lower side surface of the reinforced concrete pure camber beam; the suspension nuts are then loosened to a position where they do not interfere with the lowering of the distribution steel beam onto the reinforced concrete pure-bent beam. And finally, pressurizing and pressing the distribution steel beam through the pressing air cylinder and the pressure sensor, transmitting the pressure to the reinforced concrete pure camber beam through the two pressing blocks by the distribution steel beam, and stopping increasing the pressure by the pressing air cylinder when the force displayed by the pressure sensor meets the requirement, thereby completing the loading of the reinforced concrete pure camber beam. The technical scheme can conveniently load the middle part of the reinforced concrete pure camber beam to a required value.
Preferably, a flexible isolation pad for pressing the distribution steel beam is connected to the pressure sensor. Damage to the pressure sensor can be avoided.
The utility model discloses still include two ultrasonic transducer mounts, the telescopic machanism that transducer fixed knot constructs and lower transducer fixed knot construct along upper and lower direction deciliter is gone up to ultrasonic transducer mount including transducer fixed knot structure, lower transducer fixed knot construct and drive. When the load-loading device is used, the upper transducer fixing structure fixes one ultrasonic transducer, the lower transducer fixing structure fixes one ultrasonic transducer, and the two ultrasonic transducers on the ultrasonic transducer fixing frame are fixed on the upper side and the lower side of the load-loading device for measuring the working bending moment of the reinforced concrete pure camber beam through the contraction of the telescopic mechanism. The convenience of fixing the ultrasonic sensor to the reinforced concrete pure camber beam during detection can be improved.
Preferably, the telescopic mechanism is a cylinder.
Preferably, the lower transducer fixing structure comprises a supporting plate and a lifting lug connected to the supporting plate, the lifting lug is connected with one end of the telescopic mechanism, the upper transducer fixing structure comprises a pressing plate and a pull rod connected to the pressing plate, and the pull rod is connected with the other end of the telescopic mechanism. The convenience in fixing the ultrasonic transducer can be improved.
Preferably, the upper surface of the supporting plate is provided with a supporting plate part transducer limiting cavity, and the lower surface of the pressing plate is provided with a pressing plate part transducer limiting cavity. During the use, go up the fixed ultrasonic transducer of transducer fixed knot structure and wear to establish in the spacing chamber of pressure plate portion transducer, ultrasonic transducer wears to establish in the spacing intracavity of layer board portion transducer. The convenience and reliability in fixing the ultrasonic transducer can be further improved.
Preferably, the upper transducer fixing structure is connected with a vertical suspension rod, the vertical suspension rod is provided with an insertion hole and a suspension bracket which is connected with the distribution steel beam in a sleeved mode, and a horizontal bolt used for enabling the vertical suspension rod to fall on the suspension bracket penetrates through the insertion hole. And when the ultrasonic transducer needs to be closed, the horizontal bolt is pulled out. The distance between the two ultrasonic transducers on the same side of the reinforced concrete pure camber beam can be conveniently kept at a set distance.
Preferably, one end of the slide rail, which faces the avoidance space, is connected with a limit stop for preventing the support seat from sliding out of the slide rail. The safety is good.
The utility model has the advantages of that: the load can be conveniently and reliably applied to the reinforced concrete pure camber beam to be detected, so that the convenience in measuring the working bending moment of the reinforced concrete pure camber beam is improved.
Drawings
FIG. 1 is a schematic front view of a reinforced concrete pure camber beam to be loaded according to the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic front view of the reinforced concrete pure camber beam according to the present invention.
In the figure: the device comprises a suspension seat 1, a pressing cylinder 2, a distribution steel beam 3, a supporting platform 4, an avoidance space 5, a slide rail 6, a supporting seat 7, a positioning stop block 8, a limit stop block 9, a pressure sensor 10, a flexible isolation pad 11, a horizontal suspension rod 12, a suspension rod 13, a suspension nut 14, a pressing block 15, a suspension rope 16, a heavy hammer 17, an ultrasonic transducer fixing frame 18, an upper transducer fixing structure 19, a lower transducer fixing structure 20, a telescopic mechanism 21, a supporting plate 22, a lifting lug 23, an ultrasonic transducer 24, a pressing plate 25, a pull rod 26, a vertical suspension rod 27, a jack 28, a lifting bracket 29, a horizontal bolt 30 and a reinforced concrete pure bending beam 31.
Detailed Description
The invention is further described with reference to the following drawings and specific embodiments.
Referring to fig. 1, 2, 3 and 4, the load-loading device for measuring the working bending moment of the reinforced concrete pure camber beam comprises a suspension base 1, a downward telescopic pressing cylinder 2, a distribution steel beam 3 extending along the left-right direction and two support platforms 4 distributed on the left side and the right side below the suspension base. An avoidance space 5 is formed between the two support platforms. The supporting platform is provided with a slide rail 6 extending along the left-right direction. The slide rail is connected with a supporting seat 7 in a sliding way. One end of the supporting seat far away from the avoiding space is provided with a positioning stop block 8. One end of the slide rail facing the avoiding space is connected with a limit stop 9. The limit stop is used for preventing the supporting seat from sliding out of the sliding rail. The cylinder body of the pressing cylinder is connected with the suspension seat, and the piston rod of the pressing cylinder is connected with a pressure sensor 10. The pressure sensor is connected with a flexible spacer 11 for pressing the distribution steel beam. The pressure sensor is positioned right above the middle part of the distribution steel beam. The left and right sides of the cylinder body of the pressing cylinder are respectively connected with a horizontal suspension rod 12. The horizontal suspension rod is provided with a suspension rod 13. The upper end of the hanger rod is connected with a hanging nut 14 through screw threads, and the lower end of the hanger rod is welded with a distribution steel beam. The two ends of the distribution steel beam are respectively provided with a pressing block 15. The two pressing blocks are symmetrically distributed on the two radial sides of the pressing cylinder. A weight 17 is connected to the lower part of the middle part of the distribution steel beam through a sling 16. The utility model discloses still include two ultrasonic transducer mounts 18. The two ultrasonic transducer fixing frames are distributed along the left and right directions. The ultrasonic transducer fixing frame comprises an upper transducer fixing structure 19, a lower transducer fixing structure 20 and a telescopic mechanism 21 for driving the upper transducer fixing structure and the lower transducer fixing structure to be combined and separated along the up-down direction. The telescopic mechanism is a cylinder. The lower transducer mounting structure includes a support plate 22 and a lifting lug 23 attached to the support plate. The upper surface of the supporting plate is provided with a supporting plate part transducer limiting cavity. An ultrasonic transducer 24 is arranged on the limiting cavity of the transducer of the supporting plate part in a penetrating way. The lifting lug is connected with one end of the telescopic mechanism. The upper transducer mounting structure includes a pressure plate 25 and a pull rod 26 attached to the pressure plate. And a pressure plate part transducer limiting cavity is arranged on the lower surface of the pressure plate. An ultrasonic transducer is also arranged in the limiting cavity of the pressure plate part transducer in a penetrating mode and is bonded and fixed through glue. The pull rod is connected with the other end of the telescopic mechanism. The upper transducer fixing structure is connected with a vertical suspension rod 27. The vertical suspension rods are provided with jacks 28 and are provided with hangers 29 which are connected together with the distribution beams. The jack is provided with a horizontal bolt 30 for dropping the vertical hanging rod on the hanging bracket.
When the reinforced concrete pure camber beam is used, two ends of the reinforced concrete pure camber beam 31 are supported on the two supporting seats and are abutted with the positioning stop blocks, and then the supporting seats are slid to move the reinforced concrete pure camber beam until the middle point of the reinforced concrete pure camber beam is aligned with the heavy hammer. At the moment, two ultrasonic transducers in the 4 ultrasonic transducers are positioned above the reinforced concrete pure camber beam, and the other two ultrasonic transducers are positioned below the reinforced concrete pure camber beam; and then loosening the suspension nuts to enable the distribution steel beams to descend to be supported on the upper surface and the lower surface of the reinforced concrete pure-bent beam through the pressing blocks. And finally, the pressing cylinder presses the distribution steel beam in a pressurizing mode through the pressure sensor, the distribution steel beam conducts pressure to the reinforced concrete pure camber beam through the two pressing blocks, and the pressing cylinder stops increasing the pressure when the force displayed by the pressure sensor meets the requirement, so that the reinforced concrete pure camber beam is loaded.
Claims (9)
1. A load-loading device for measuring the working bending moment of a reinforced concrete pure camber beam is characterized by comprising a suspension seat, a downward telescopic pressing air cylinder, a distribution steel beam extending along the left-right direction and two support platforms distributed on the left side and the right side below the suspension seat, wherein an avoidance space is formed between the two support platforms, a slide rail extending along the left-right direction is arranged on each support platform, a support seat is connected on each slide rail in a sliding manner, a positioning stop block is arranged at one end, away from the avoidance space, of each support seat, a cylinder body of the pressing air cylinder is connected with the suspension seat, a piston rod of the pressing air cylinder is connected with a pressure sensor, the left side and the right side of the cylinder body of the pressing air cylinder are respectively connected with a horizontal suspension rod, a suspension rod penetrates through each horizontal suspension rod, the upper end of each suspension rod is connected, the two ends of the distribution steel beam are respectively provided with a pressing block, the pressure sensor is positioned right above the middle part of the distribution steel beam, and the lower part of the middle part of the distribution steel beam is connected with a heavy hammer through a sling.
2. The loading device for measuring the working bending moment of the reinforced concrete pure bending beam according to claim 1, wherein the pressure sensor is connected with a flexible isolation pad used for pressing the distribution steel beam.
3. The loading device for measuring the working bending moment of the reinforced concrete pure camber beam according to claim 1 or 2, characterized by further comprising two ultrasonic transducer fixing frames, wherein each ultrasonic transducer fixing frame comprises an upper transducer fixing structure, a lower transducer fixing structure and a telescopic mechanism for driving the upper transducer fixing structure and the lower transducer fixing structure to be separated and combined in the up-down direction.
4. The load-loading device for measuring the working bending moment of the reinforced concrete pure bending beam according to claim 3, wherein the telescopic mechanism is an air cylinder.
5. The load-loading device for measuring the working bending moment of the reinforced concrete pure bending beam according to claim 3, wherein the lower transducer fixing structure comprises a supporting plate and a lifting lug connected to the supporting plate, the lifting lug is connected with one end of the telescopic mechanism, the upper transducer fixing structure comprises a pressing plate and a pull rod connected to the pressing plate, and the pull rod is connected with the other end of the telescopic mechanism.
6. The loading device for measuring the working bending moment of the reinforced concrete pure bending beam according to claim 5, wherein a supporting plate transducer limiting cavity is arranged on the upper surface of the supporting plate, and a pressing plate transducer limiting cavity is arranged on the lower surface of the pressing plate.
7. The load-loading device for measuring the working bending moment of the reinforced concrete pure bending beam as claimed in claim 3, wherein the upper transducer fixing structure is connected with a vertical suspension rod, the vertical suspension rod is provided with an insertion hole and a suspension bracket which is connected with a distribution steel beam in a sleeved mode, and a horizontal bolt for enabling the vertical suspension rod to fall on the suspension bracket is arranged in the insertion hole in a penetrating mode.
8. The loading device for measuring the working bending moment of the reinforced concrete pure camber beam according to claim 1 or 2, wherein a limit stop for preventing the supporting seat from sliding out of the slide rail is connected to one end of the slide rail facing the avoidance space.
9. The loading device for measuring the working bending moment of the reinforced concrete pure bending beam according to claim 1 or 2, wherein the two pressing blocks are symmetrically distributed on two radial sides of the pressing cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020176099.1U CN211978557U (en) | 2020-02-18 | 2020-02-18 | Loading device for measuring working bending moment of reinforced concrete pure camber beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020176099.1U CN211978557U (en) | 2020-02-18 | 2020-02-18 | Loading device for measuring working bending moment of reinforced concrete pure camber beam |
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| Publication Number | Publication Date |
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| CN211978557U true CN211978557U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020176099.1U Active CN211978557U (en) | 2020-02-18 | 2020-02-18 | Loading device for measuring working bending moment of reinforced concrete pure camber beam |
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| CN (1) | CN211978557U (en) |
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2020
- 2020-02-18 CN CN202020176099.1U patent/CN211978557U/en active Active
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