CN211042076U - Vertical deflection measuring device for bridge static load test - Google Patents
Vertical deflection measuring device for bridge static load test Download PDFInfo
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- CN211042076U CN211042076U CN201921927350.7U CN201921927350U CN211042076U CN 211042076 U CN211042076 U CN 211042076U CN 201921927350 U CN201921927350 U CN 201921927350U CN 211042076 U CN211042076 U CN 211042076U
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- sleeve
- box body
- measuring device
- vertical deflection
- static load
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Abstract
The utility model belongs to the technical field of bridge deflection detection devices, in particular to a vertical deflection measuring device for a bridge static load test, which comprises a lifting rope, a lifting column, a sleeve, a supporting leg and a fixed frame, wherein the bottom of the fixed frame is fixed with the ground; a level gauge and a leveling display mechanism are fixedly arranged on the sleeve; the leveling display mechanism comprises a box body, a first lead, a second lead, a third lead, a power supply and an indicator light; the box body is a horizontally placed cylinder, conductive liquid is filled in the box body, and the volume of the conductive liquid is half of the volume of the box body; one end of the first wire is embedded into one end of the box body, one end of the second wire is embedded into the other end of the box body, and the embedding positions are all below the circle center; the other end of the first wire is electrically connected with the indicator light, and the other end of the second wire is electrically connected with the negative pole of the power supply; two ends of the third lead are respectively electrically connected with the negative electrode of the power supply and the indicator light; the indicator light is fixed on the side wall of the sleeve; the power supply is embedded on the side wall of the sleeve.
Description
Technical Field
The utility model belongs to the technical field of bridge amount of deflection detection device, especially, relate to a be used for experimental vertical amount of deflection measuring device of bridge static load.
Background
Deflection is the amount of displacement of each point on its axis in the plane normal to the axis at that point during deformation. Through the detection and analysis of the deflection value, various indexes such as the vertical rigidity, the structural bearing capacity and the structural service performance of the bridge can be accurately judged, and the method is important reference data for acceptance of new bridges, identification of bridges and transformation of dangerous bridges.
At present, when the vertical deflection of a bridge static load test is measured, a method which is usually used is to hang a steel ruler or a steel tape measure and carry out lateral measurement by utilizing the principle of coordination between hanging objects and structural deformation. However, when the method is used for measurement, the hanging steel ruler or the steel tape is greatly influenced by wind power, and the measurement error is large.
In order to solve the above problems, chinese patent CN201434755Y discloses a structure deflection increment measuring device, which is provided with a suspension rod connected with a measuring point of a structure, the lower end of the suspension rod is connected with a heavy hammer, the heavy hammer is arranged in a sleeve, the sleeve is provided with an adjustable supporting leg, and a heavy hammer vertical displacement measuring device is arranged below the sleeve. A thermometer placing groove is arranged on the side wall of the sleeve. The hanger rod is composed of a plurality of sections which are mutually sleeved, and a locking mechanism is arranged between the sections.
This patent is at the initial back with the device leveling, can be convenient carry out the static test vertical deflection measurement to the bridge to the accuracy degree is very high for the survey flow result.
However, the static test vertical deflection measurement of the bridge is not completed at a time, but is continuously measured. In the measuring process, if the device inclines, the testing device is not leveled in time. Subsequent measurements are greatly affected. However, if the device is found to be tilted for the first time, it is necessary to specially send a person to stare at the level, which is too labor-intensive.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art if the very first time discovery when the device inclines, just need to send the people specially to stare at the spirit level, to the too big problem of consumption of human cost like this, provide one kind and be used for bridge static test vertical deflection measuring device.
The utility model provides a basic scheme does:
the vertical deflection measuring device for the bridge static load test comprises a lifting rope, a lifting column, a sleeve, supporting legs and a fixing frame, wherein the bottom of the fixing frame is fixed with the ground; two ends of the supporting leg are respectively and rotatably connected with the fixed frame and the side wall of the sleeve, and the length of the supporting leg can be finely adjusted; the support is a magnetic fixed support, the support is fixed on the fixing frame, the displacement measuring instrument is arranged on the magnetic fixed support, and the top end of the displacement measuring instrument is fixed with the bottom surface of the hanging column; the upper end of the lifting rope is fixed with the deflection test point at the bottom of the bridge, and the lower end of the lifting rope is fixed at the top end of the lifting column; the hanging column is connected with the sleeve in a sliding way;
a level gauge and a leveling display mechanism are fixedly arranged on the sleeve;
the leveling display mechanism comprises a box body, a first lead, a second lead, a third lead, a power supply and an indicator light;
the box body is a horizontally placed cylinder, conductive liquid is filled in the box body, and the volume of the conductive liquid is half of the volume of the box body; one end of the first wire is embedded into one end of the box body, one end of the second wire is embedded into the other end of the box body, and the embedding positions are 2-10 mm below the circle center; the other end of the first wire is electrically connected with the indicator light, and the other end of the second wire is electrically connected with the negative pole of the power supply; two ends of the third lead are respectively electrically connected with the negative electrode of the power supply and the indicator light; the indicator light is fixed on the side wall of the sleeve; the power supply is embedded on the side wall of the sleeve.
Basic scheme theory of operation and beneficial effect:
connecting one end of a lifting rope to a deflection test point at the bottom of the bridge, and fixing the other end of the lifting rope to a lifting ring at the top end of a lifting column; the length of the lifting rope can be adjusted along with the net height of the bottom of the bridge. The length of the supporting foot is adjusted, the sleeve is leveled, and when leveling, whether leveling is performed or not can be checked through observing the leveling bubble. And then, the vertical deflection measurement can be carried out on the bridge.
When the device is in a horizontal state, the conductive liquid in the box body on the sleeve is in contact with the first lead and the second lead, the power supply supplies power to the indicator lamp through the first lead, the second lead, the third lead and the mercury, and at the moment, the indicator lamp can emit light.
In the measuring process, if the device has a certain degree of deflection, the device is no longer kept in a horizontal state, at the moment, the relative position of the conductive liquid in the box body on the sleeve and the box body can be changed, the conductive liquid is no longer in contact with the first lead or the second lead, namely, the conductive liquid is no longer conductive to the first lead and the second lead, and at the moment, the indicator light is no longer luminous.
If the staff sees that the pilot lamp is no longer luminous, the explanation device has appeared the skew, can in time carry out the leveling to it. Unnecessary errors in the measurement result due to the inclination of the device are prevented.
Furthermore, the number of the leveling display mechanisms is four, and the four leveling display mechanisms are located at the same height and are uniformly distributed in four directions of the sleeve.
Thus, when the device deflects, the worker can know the situation in time from all directions.
Further, the leveling display mechanism further comprises a switch, and the switch is installed on the third conducting wire.
When not measuring, the sleeve can vertically place usually, and the box body all can be in the horizontality usually many times, if not set up the switch, the pilot lamp can last luminous, causes the waste of power. After the switch is arranged, the switch can be turned on during measurement, and turned off during non-measurement, so that the waste of the power supply can be avoided.
Further, the switch is a push button switch.
The button switch is convenient to operate and install.
Further, the conductive liquid is mercury.
Mercury is excellent in electrical conductivity and can conduct electricity well.
Further, the displacement measuring instrument is a digital display vernier.
Therefore, the measuring result can be directly displayed by the digital display screen without manual reading, and the error generated during manual reading can be avoided.
Further, the power source is a battery.
The battery is taken as a common power supply and is easy to obtain and replace.
Further, the indicator lamp is an L ED lamp.
L ED lamps are relatively common and have a relatively low cost and are easy to replace.
Furthermore, a hanging ring is fixedly arranged at the top of the hanging column.
The bottom end of the lifting rope is convenient to fix.
Furthermore, two ends of the supporting leg are respectively hinged with the fixed frame and the side wall of the sleeve.
The connection relation is simple and easy to realize.
Drawings
Fig. 1 is the utility model discloses a schematic structure diagram that is used for experimental vertical deflection measuring device embodiment one of bridge static load.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: lifting rope 1, davit 2, sleeve 3, stabilizer blade 4, mount 5, support 6, box body 7, pilot lamp 8, displacement measurement appearance 9.
As shown in figure 1, the vertical deflection measuring device for the bridge static load test comprises a lifting rope 1, a lifting column 2, a sleeve 3, supporting legs 4, a support 6 and a fixing frame 5.
The bottom of the fixing frame 5 is fixed with the ground through expansion bolts, three support legs 4 are provided, and the three support legs 4 are uniformly arranged around the sleeve 3.
The both ends of stabilizer blade 4 are articulated with the lateral wall of mount 5 and sleeve 3 respectively, and the length of stabilizer blade 4 can finely tune, and in this embodiment, stabilizer blade 4 is electric putter.
The support 6 is a magnetic fixed support 6, the support 6 is fixed on the fixed mount 5, and the displacement measuring instrument 9 is installed on the magnetic fixed support 6. The top end of the displacement measuring instrument 9 is bonded to the bottom surface of the suspension post 2. In this embodiment, the displacement measuring instrument 9 is a digital vernier. The measuring result can be directly displayed by the digital display screen without manual reading, and the error generated during manual reading can be avoided.
Davit 2 is the cylinder, and davit 2 and sleeve 3 sliding connection, the top integrated into one piece of davit 2 has rings.
A level gauge, which in this embodiment is a level bubble, is bonded to the sleeve 3.
In addition, four leveling display mechanisms are bonded to the top of the sleeve 3. The four leveling display mechanisms are evenly distributed at four positions at the top of the sleeve 3. The leveling display mechanism comprises a box body 7, a first lead, a second lead, a third lead, a power supply and an indicator light 8.
The box body 7 is a horizontally placed cylinder, mercury is filled in the box body 7, in the embodiment, the volume of the mercury is half of that of the box body 7, one end of a first lead is embedded into one end of the box body 7, one end of a second lead is embedded into the other end of the box body 7, the embedding positions are three millimeters below the circle center, the other end of the first lead is electrically connected with the indicator light 8, the other end of the second lead is electrically connected with a negative electrode of a power supply, two ends of the third lead are respectively electrically connected with the negative electrode of the power supply and the indicator light 8, the indicator light 8 is fixed on the outer side wall of the sleeve 3 through bolts, in the embodiment, the power supply is a battery, the indicator light 8 is an L ED lamp, and the power.
The specific implementation process is as follows:
one end of a lifting rope 1 is connected to a deflection test point at the bottom of the bridge, and the other end of the lifting rope is fixed on a lifting ring at the top end of a lifting column 2; the length of the lifting rope 1 can be adjusted along with the net height of the bottom of the bridge.
The length of the support leg 4 is adjusted, the sleeve 3 is leveled, and when leveling, whether leveling is performed or not can be checked through observing the leveling bubble.
And then, the vertical deflection measurement can be carried out on the bridge.
When the device is in a horizontal state, mercury in the box body 7 on the sleeve 3 is in contact with the first lead and the second lead, the power supply supplies power to the indicator lamp 8 through the first lead, the second lead, the third lead and the mercury, and at the moment, the indicator lamp 8 can emit light.
During the measurement, if the device is deflected to a certain degree and does not keep horizontal, at this time, the relative position between the mercury in the box body 7 and the box body 7 on the sleeve 3 changes, the mercury in the box body 7 is not contacted with the first lead or the second lead any more, namely, the mercury is not conducted with the first lead and the second lead any more, and at this time, the indicator light 8 does not emit light any more.
If the staff sees that pilot lamp 8 no longer shines, the explanation device has appeared squinting, can in time carry out the leveling to it. Unnecessary errors in the measurement result due to the inclination of the device are prevented.
Meanwhile, because the upper end of the sleeve 3 is uniformly provided with four leveling display structures, when the device deflects, a worker can timely know the situation from all directions.
In the second embodiment, different from the first embodiment, the leveling display mechanism further includes a switch, the switch is installed on the third wire, and the switch is adhered to the sleeve 3. In this embodiment, the switch is a push switch.
When not measuring, sleeve 3 is vertical placing usually, and box body 7 all can be in the horizontality usually many times, if not set up the switch, pilot lamp 8 can continuously give out light, causes the waste of power. After the switch is arranged, the switch can be turned on during measurement, and turned off during non-measurement, so that the waste of the power supply can be avoided.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The vertical deflection measuring device for the bridge static load test comprises a lifting rope, a lifting column, a sleeve, supporting legs and a fixing frame, wherein the bottom of the fixing frame is fixed with the ground; two ends of the supporting leg are respectively and rotatably connected with the fixed frame and the side wall of the sleeve, and the length of the supporting leg can be finely adjusted; the support is a magnetic fixed support, the support is fixed on the fixing frame, the displacement measuring instrument is arranged on the magnetic fixed support, and the top end of the displacement measuring instrument is fixed with the bottom surface of the hanging column; the upper end of the lifting rope is fixed with the deflection test point at the bottom of the bridge, and the lower end of the lifting rope is fixed at the top end of the lifting column; the hanging column is connected with the sleeve in a sliding way;
the method is characterized in that: a level gauge and a leveling display mechanism are fixedly arranged on the sleeve;
the leveling display mechanism comprises a box body, a first lead, a second lead, a third lead, a power supply and an indicator light;
the box body is a horizontally placed cylinder, conductive liquid is filled in the box body, and the volume of the conductive liquid is half of the volume of the box body; one end of the first wire is embedded into one end of the box body, one end of the second wire is embedded into the other end of the box body, and the embedding positions are 2-10 mm below the circle center; the other end of the first wire is electrically connected with the indicator light, and the other end of the second wire is electrically connected with the negative pole of the power supply; two ends of the third lead are respectively electrically connected with the negative electrode of the power supply and the indicator light; the indicator light is fixed on the side wall of the sleeve; the power supply is embedded on the side wall of the sleeve.
2. The vertical deflection measuring device for the static load test of the bridge according to claim 1, characterized in that: the number of the leveling display mechanisms is four, and the four leveling display mechanisms are located at the same height and are uniformly distributed in four directions of the sleeve.
3. The vertical deflection measuring device for the static load test of the bridge according to claim 2, characterized in that: the leveling display mechanism further comprises a switch, and the switch is installed on the third conducting wire.
4. The vertical deflection measuring device for the static load test of the bridge according to claim 3, characterized in that: the switch is a push-button switch.
5. The vertical deflection measuring device for the static load test of the bridge according to claim 1, characterized in that: the conductive liquid is mercury.
6. The vertical deflection measuring device for the static load test of the bridge according to claim 1, characterized in that: the displacement measuring instrument is a digital display vernier.
7. The vertical deflection measuring device for the static load test of the bridge according to claim 1, characterized in that: the power source is a battery.
8. The vertical deflection measuring device for the static load test of the bridge as claimed in claim 1, wherein the indicator light is L ED light.
9. The vertical deflection measuring device for the static load test of the bridge according to claim 1, characterized in that: the top of the suspension post is fixedly provided with a suspension ring.
10. The vertical deflection measuring device for the static load test of the bridge according to claim 1, characterized in that: the two ends of the supporting leg are respectively hinged with the fixed frame and the side wall of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921927350.7U CN211042076U (en) | 2019-11-08 | 2019-11-08 | Vertical deflection measuring device for bridge static load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921927350.7U CN211042076U (en) | 2019-11-08 | 2019-11-08 | Vertical deflection measuring device for bridge static load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211042076U true CN211042076U (en) | 2020-07-17 |
Family
ID=71562908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921927350.7U Expired - Fee Related CN211042076U (en) | 2019-11-08 | 2019-11-08 | Vertical deflection measuring device for bridge static load test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211042076U (en) |
-
2019
- 2019-11-08 CN CN201921927350.7U patent/CN211042076U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20201108 |