CN210953657U - Loading device for single-beam static load test - Google Patents
Loading device for single-beam static load test Download PDFInfo
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- CN210953657U CN210953657U CN201921878832.8U CN201921878832U CN210953657U CN 210953657 U CN210953657 U CN 210953657U CN 201921878832 U CN201921878832 U CN 201921878832U CN 210953657 U CN210953657 U CN 210953657U
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Abstract
The utility model discloses a single beam static test's loading device, which comprises a base, counterforce device, the distribution roof beam, the loading crossbeam, connecting screw and two supports, the jack pedestal, the loading jack, a slide rail, the loading cushion, adjusting nut, the hoist engine, the loading crossbeam passes through the distribution roof beam and installs the below at the counterforce crossbeam, counterforce device has the gate-type and crosses the hole, two slide rails pass the gate-type and cross the hole, and install on the base, the both ends of each jack pedestal respectively with two slide rail sliding connection, the bottom surface and the base of each jack pedestal between two slide rails form loading bearing space, each loading cushion is installed in each loading bearing space, each loading jack is installed respectively on the top surface of each jack pedestal, each bearing installation is in the top of each loading jack. The loading device does not need to be installed and disassembled before and after the test, and the hoisting of the test beam is simpler and quicker due to the fact that the test beam is not obstructed by the counter-force device during hoisting.
Description
Technical Field
The utility model relates to a bridge detects technical field, especially relates to a loading device of monospar static load test.
Background
In recent years, the bridge industry of China is rapidly developed, and the quality of bridge construction is widely concerned by people in the industry. For the quality control of the precast concrete beams in the beam plant, the single-beam static load test is the most direct way for checking whether the precast concrete beams meet the operation requirements. At present, a single-beam static load test mainly adopts a jack loading mode for loading. The loading mode is simple and efficient to operate, and meanwhile, the loading force can be accurately controlled, so that the test precision is improved.
However, most of the existing jack loading devices are complex, and a lot of time is consumed for installation before a test, so that a loading device which does not need to be installed and disassembled before and after the test needs to be developed urgently.
Disclosure of Invention
An object of the utility model is to provide a loading device of monospar static test, this loading device need not to install and dismantle before experimental, after, also because there is not counter-force device's hindrance when experimental roof beam hoist and mount for the hoist and mount of experimental roof beam become more simple, swift.
The technical scheme is as follows:
the loading device for the single-beam static load test comprises a base, a counterforce device, a distribution beam, a loading cross beam, two supports, two jack pedestals, two loading jacks, two slide rails, two loading cushion blocks, a connecting screw rod, four adjusting nuts and two winches, wherein the counterforce device is installed on the base and comprises the counterforce cross beam, the loading cross beam is installed below the counterforce cross beam through the distribution beam, the counterforce device is provided with a door-type through hole, the two slide rails penetrate through the door-type through hole and are installed on the base, two ends of each jack pedestal are respectively connected with the two slide rails in a sliding manner, a loading supporting space is formed between the bottom surface of each jack pedestal between the two slide rails and the base, each loading cushion block is installed in each loading supporting space, and each loading jack is installed on the top surface of each jack pedestal respectively, the supports are arranged above the loading jacks, two ends of the connecting screw rod are movably connected with the inner sides of the two jack pedestals through the adjusting nuts respectively, and the winches are in driving connection with the outer sides of the jack pedestals respectively.
The reaction device further comprises a first stand column and a second stand column, the lower ends of the first stand column and the second stand column are respectively installed on the base, the two ends of the reaction cross beam are respectively connected with the upper ends of the first stand column and the second stand column, and the first stand column and the second stand column form the door type passing hole.
The base comprises a foundation pit, the foundation pit is located between the first upright post and the second upright post, and the two slide rails are respectively arranged on two sides of the bottom of the foundation pit.
The two loading cross beams are respectively arranged at two ends of the bottom surface of the distribution beam, and the middle part of the top surface of the distribution beam is supported on the bottom surface of the middle part of the counter-force cross beam.
The distance between the supporting position of the distribution beam and the middle part of the reaction beam and the distance between the two loading beams correspond.
The jack platform comprises a jack platform seat, and is characterized by further comprising a plurality of idler wheels and a plurality of rolling shafts, wherein the idler wheels are installed at two transverse ends of the jack platform seat respectively through the rolling shafts, and the two transverse ends of the jack platform seat are connected with the two sliding rails in a sliding mode through the idler wheels respectively.
The four adjusting jacks are respectively arranged in the loading supporting spaces and are respectively positioned on two sides of the loading cushion block.
The hoist has a wire rope, and each hoist drives each jack stand by the wire rope connected to the outside of each jack stand.
The support also comprises two supporting cushion plates, and each supporting cushion plate is respectively arranged on the upper part and the lower part of each support.
It should be noted that:
the foregoing references to "first and second …" do not denote any particular quantity or order, but rather are used to distinguish one name from another.
In the description of the present invention, it should be understood that the terms "upper" and "lower" are used as the terms of the orientation or the positional relationship based on the drawings, or the orientation or the positional relationship that the product of the present invention is usually placed when using, or the orientation or the positional relationship that the person skilled in the art usually understands, only for the convenience of describing the present invention and simplifying the description, but not for the indication or the suggestion that the device or the element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be interpreted as the limitation of the present invention.
The advantages or principles of the invention are explained below:
1. the utility model provides a loading device of single beam static load test, including base, counterforce device, distribution beam, loading crossbeam, two supports, two jack pedestals, two loading jacks, two slide rails, two loading cushion blocks, connecting screw, four adjusting nuts, two hoist engines, when using, pull the jack pedestals out of the counterforce device with the hoist engine first, select suitable connecting screw and install according to the loading span of the test beam, twist to adjust the nut fine setting loading span; then, installing a loading jack and a support on a jack pedestal, hoisting a test beam, hoisting the test beam on the two supports, installing a loading beam and a distribution beam on the test beam, then, pulling the jack pedestal to a preset position by using a winch to align the distribution beam and a counterforce device, installing a loading base plate in a loading support space below the jack pedestal, starting a test, synchronously loading the two loading jacks below two ends of the test beam, unloading the loading base plate after the test is finished, pulling the jack pedestal out of the counterforce device by using the winch, unloading the distribution beam and the loading beam, lifting the test beam, and completing a static load test of the test beam; the loading device does not need to be installed and disassembled before and after the test, centering and fine adjustment of the counterforce device are realized through the winch, the use of large-scale hoisting equipment and auxiliary workers can be reduced, and the hoisting of the test beam is simpler and quicker due to the fact that the counterforce device does not block during hoisting of the test beam.
2. The utility model discloses a reaction device still includes first stand, second stand, and reaction device's reaction crossbeam and first stand, second stand form the gate-type and cross the hole, improve reaction device's structural stability.
3. The utility model discloses an establish the foundation ditch on the base, establish two slide rails on the foundation ditch, make the hoist and mount of experimental roof beam more convenient.
4. The utility model discloses a loading crossbeam is two, and two loading crossbeams provide two counter-force strong points for the top surface of experimental roof beam respectively.
5. The utility model discloses a distance between distribution beam and the support department at reaction beam middle part to two loading crossbeams is corresponding, improves experimental accuracy.
6. The utility model discloses the both ends of each jack pedestal are respectively through gyro wheel and two slide rail sliding connection, make the slip of jack pedestal on the slide rail more smooth and easy.
7. The utility model discloses adjust jack's setting, make things convenient for the loading backing plate to pack into in the loading supporting space of jack platform below, when the loading backing plate need be packed into, use four to adjust jack with jack platform jack-up, make the jack platform break away from the slide rail, the loading backing plate is packed into again, then four adjust jack oil return shrinkages, make the loading backing plate supporting in jack platform below, when needing to unload the loading backing plate from loading supporting space, use four to adjust jack-up, unload the loading backing plate off, then four adjust jack oil return shrinkages, make the both ends of jack platform again with two slide rail sliding connection.
8. And each winch is in driving connection with the outer side of each jack pedestal through a steel cable, so that the operation is convenient.
9. The utility model discloses set up the supporting backing plate on two supports respectively, improve the stability that the test beam detected the supporting.
Drawings
Fig. 1 is a side view of a loading device for a single-beam static load test according to an embodiment of the present invention.
Fig. 2 is a side view of the installation state of the loading device test beam of the single-beam static load test of the embodiment of the present invention.
Fig. 3 is a side view of the loading device test beam loading test state of the single beam static load test of the embodiment of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 3.
Fig. 5 is a sectional view taken along line B-B of fig. 3.
Description of reference numerals:
10. the device comprises a base, 11, a foundation pit, 20, a counterforce device, 21, a distribution beam, 22, a loading beam, 23, a counterforce beam, 24, a first upright column, 25, a second upright column, 30, a support, 31, a supporting base plate, 40, a jack pedestal, 41, a loading supporting space, 42, a roller, 43, a roller, 50, a loading jack, 60, a sliding rail, 70, a loading cushion block, 71, an adjusting jack, 80, a connecting screw rod, 81, an adjusting nut, 90, a winch, 91, a steel cable, 92 and a test beam.
Detailed Description
The following describes embodiments of the present invention in detail.
As shown in fig. 1 to 5, the loading device for single beam static load test provided by the present invention comprises a base 10, a reaction device 20, a distribution beam 21, a loading beam 22, two supports 30, two jack pedestals 40, two loading jacks 50, two slide rails 60, two loading pads 70, a connecting screw 80, four adjusting nuts 81, and two winches 90, wherein the reaction device 20 is installed on the base 10, the reaction device 20 comprises a reaction beam 23, the loading beam 22 is installed below the reaction beam 23 through the distribution beam 21, the reaction device 20 has a door-type through hole, the two slide rails 60 pass through the door-type through hole and are installed on the base 10, two ends of each jack pedestal 40 are respectively connected with the two slide rails 60 in a sliding manner, the bottom surface of each jack pedestal 40 between the two slide rails 60 forms a loading supporting space 41 with the base 10, each loading pad 70 is installed in each loading supporting space 41, the loading jacks 50 are respectively arranged on the top surfaces of the jack pedestals 40, the supports 30 are arranged above the loading jacks 50, two ends of the connecting screw 80 are respectively movably connected with the inner sides of the two jack pedestals 40 through adjusting nuts 81, and the windlasses 90 are respectively in driving connection with the outer sides of the jack pedestals 40.
When the device is used, the hoisting machine 90 is used for pulling the jack pedestal 40 out of the counterforce device 20, a proper connecting screw rod 80 is selected and installed according to the loading span of the test beam 92, and the adjusting nut 81 is screwed to finely adjust the loading span; next, installing a loading jack 50 and supports 30 on the jack pedestal 40, hoisting a test beam 92, hoisting the test beam 92 on the two supports 30, installing a loading cross beam 22 and a distribution beam 21 on the test beam 92, then, pulling the jack pedestal 40 to a preset position by using a winch 90 to center the distribution beam 21 and a reaction device 20, installing a loading base plate in a loading support space 41 below the jack pedestal 40, starting a test, synchronously loading the two loading jacks 50 below two ends of the test beam 92, unloading the loading base plate after the test is finished, pulling the jack pedestal 40 out of the reaction device 20 by using the winch 90, unloading the distribution beam 21 and the loading cross beam 22, hoisting the test beam 92 away, and finishing a static load test of the test beam 92; the loading device does not need to be installed and disassembled before and after a test, centering and fine adjustment of the counterforce device 20 are achieved through the winch 90, the use of large-scale hoisting equipment and auxiliary workers can be reduced, and the hoisting of the test beam 92 is simpler and quicker due to the fact that the counterforce device 20 does not block during hoisting of the test beam 92.
The reaction device 20 further includes a first column 24 and a second column 25, lower ends of the first column 24 and the second column 25 are respectively mounted on the base 10, two ends of the reaction beam 23 are respectively connected with upper ends of the first column 24 and the second column 25, and the first column 24, the second column 25 and the reaction beam 23 form a door-type through hole. The reaction cross beam 23 of the reaction device 20 forms a gate-type hole with the first column 24 and the second column 25, thereby improving the structural stability of the reaction device 20.
The base 10 includes a foundation pit 11, the foundation pit 11 is located between the first upright column 24 and the second upright column 25, and the two slide rails 60 are respectively installed at two sides of the bottom of the foundation pit 11. Two slide rails 60 are arranged on the foundation pit 11, so that the test beam 92 is more convenient to hoist.
The number of the load beams 22 is two, the two load beams 22 are respectively arranged at two ends of the bottom surface of the distribution beam 21, and the middle part of the top surface of the distribution beam 21 is supported on the bottom surface of the middle part of the reaction beam 23. The two load beams 22 provide two reaction support points for the top surface of the test beam 92, respectively.
Preferably, the distribution beam 21 corresponds to the distance between the support of the middle of the counter beam 23 and the two loading beams 22. The accuracy of the test is improved.
The winches 90 have cables 91, and each winch 90 is drivingly connected to the outside of each jack stand 40 via a respective cable 91. Each hoist 90 is connected with the outside of each jack stand 40 through a steel cable 91, so that the operation is convenient.
The utility model discloses still include a plurality of gyro wheels 42, a plurality of roller shafts 43, eight adjusting jack 71, four supporting pad plate 31, gyro wheel 42 passes through roller shaft 43 to be installed at the horizontal both ends of each jack pedestal 40, and the horizontal both ends of each jack pedestal 40 are respectively through gyro wheel 42 and two slide rail 60 sliding connection. The sliding of the jack stand 40 on the slide rail 60 is made smoother.
Four adjusting jacks 71 are respectively arranged in the loading supporting spaces 41, and the four adjusting jacks 71 are respectively positioned at two sides of the loading cushion block 70. The utility model discloses adjust jack 71's setting, make things convenient for the loading backing plate to pack into in the loading bearing space 41 of jack pedestal 40 below, when the loading backing plate need be packed into, use four to adjust jack 71 with jack pedestal 40 jack-up, make jack pedestal 40 break away from slide rail 60, the loading backing plate is packed into again, then four adjust jack 71 oil return contractions, make the loading backing plate supporting in jack pedestal 40 below, when needing to unload the loading backing plate from loading bearing space 41, use four to adjust jack 71 with jack pedestal 40 jack-up, lift the loading backing plate off, then four adjust jack 71 oil return contractions, make jack pedestal 40's both ends again with two slide rail 60 sliding connection.
The respective backup pads 31 are respectively installed above and below the respective pedestals 30. The stability of the test beam 92 in detecting the support is improved.
The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.
Claims (9)
1. The loading device for the single-beam static load test is characterized by comprising a base, a counterforce device, a distribution beam, a loading cross beam, two supports, two jack pedestals, two loading jacks, two slide rails, two loading cushion blocks, a connecting screw rod, four adjusting nuts and two winches, wherein the counterforce device is installed on the base and comprises the counterforce cross beam, the loading cross beam is installed below the counterforce cross beam through the distribution beam, the counterforce device is provided with a door-type through hole, the two slide rails penetrate through the door-type through hole and are installed on the base, two ends of each jack pedestal are respectively in sliding connection with the two slide rails, a loading bearing space is formed between the bottom surface of each jack pedestal between the two slide rails and the base, and each loading cushion block is installed in each loading bearing space, the loading jacks are respectively arranged on the top surfaces of the jack pedestals, the support seats are arranged above the loading jacks, two ends of the connecting screw rod are respectively movably connected with the inner sides of the two jack pedestals through the adjusting nuts, and the winches are respectively in driving connection with the outer sides of the jack pedestals.
2. The loading device for the single-beam static load test of claim 1, wherein the reaction device further comprises a first upright and a second upright, the lower ends of the first upright and the second upright are respectively mounted on the base, the two ends of the reaction beam are respectively connected with the upper ends of the first upright and the second upright, and the first upright, the second upright and the reaction beam form the door-type through hole.
3. The loading device for the single-beam static load test, as recited in claim 2, wherein the base comprises a foundation pit, the foundation pit is located between the first upright column and the second upright column, and the two slide rails are respectively installed at two sides of the bottom of the foundation pit.
4. The loading device for the single-beam static load test as claimed in claim 1, wherein there are two loading beams, two loading beams are respectively disposed at two ends of the bottom surface of the distribution beam, and the middle portion of the top surface of the distribution beam is supported on the bottom surface of the middle portion of the counter beam.
5. The loading device for the single-beam static test as claimed in claim 4, wherein the distance between the support of the distribution beam and the middle of the reaction beam and the two loading beams corresponds.
6. The loading device for the single-beam static load test according to any one of claims 1 to 5, further comprising a plurality of rollers and a plurality of rollers, wherein the rollers are mounted at the two lateral ends of each jack platform through the rollers, and the two lateral ends of each jack platform are slidably connected with the two slide rails through the rollers respectively.
7. The loading device for the single-beam static load test according to any one of claims 1 to 5, further comprising eight adjusting jacks, wherein each of the four adjusting jacks is respectively installed in each loading supporting space, and each of the four adjusting jacks is respectively located at two sides of the loading cushion block.
8. The loading device for the single-beam static load test according to any one of claims 1 to 5, wherein the hoists have steel cables, and each hoist drives each jack stand through the steel cable connected to the outside of each jack stand.
9. The loading device for the single-beam static load test, according to any one of claims 1 to 5, further comprising four support pads, wherein each support pad is respectively installed above and below each support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921878832.8U CN210953657U (en) | 2019-11-01 | 2019-11-01 | Loading device for single-beam static load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921878832.8U CN210953657U (en) | 2019-11-01 | 2019-11-01 | Loading device for single-beam static load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210953657U true CN210953657U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921878832.8U Active CN210953657U (en) | 2019-11-01 | 2019-11-01 | Loading device for single-beam static load test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210953657U (en) |
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2019
- 2019-11-01 CN CN201921878832.8U patent/CN210953657U/en active Active
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