CN220818896U - Bridge displacement monitoring device - Google Patents
Bridge displacement monitoring device Download PDFInfo
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- CN220818896U CN220818896U CN202322728096.0U CN202322728096U CN220818896U CN 220818896 U CN220818896 U CN 220818896U CN 202322728096 U CN202322728096 U CN 202322728096U CN 220818896 U CN220818896 U CN 220818896U
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Abstract
The utility model relates to a bridge displacement monitoring device, which comprises: the two groups of laser range finders, the two groups of laser receiving screens and the data acquisition device are arranged on the pushing bridge, and the two groups of laser range finders face opposite directions; along the pushing direction, two groups of laser receiving screens are arranged on two sides of the pushing bridge span, the arrangement position of each group of laser receiving screens corresponds to the arrangement position of each group of laser range finders, and the laser receiving screens are used for receiving laser emitted by the laser range finders; the data acquisition device is connected with the laser range finder and the laser receiving screen. According to the utility model, the laser range finder is matched with the laser receiving screen and the data acquisition device, so that the distance of pushing the pushing bridge span and the displacement change of the pushing bridge span end can be obtained in real time in the bridge pushing construction process, and the working efficiency is greatly improved.
Description
Technical Field
The application relates to the field of bridge detection, in particular to a bridge displacement monitoring device.
Background
In the pushing construction process of the bridge, the pushing distance and the vertical displacement of the pushing front end are required to be monitored in the pushing process. The traditional measurement mode is to test the pushing distance of the pushing front end through a total station, and to test the vertical displacement variation of the beam end through a level gauge. In the pushing construction, a plurality of pushing strokes are needed, for example, a 60 m-span beam bridge is pushed, the single pushing stroke is usually set to be 0.5m, and the whole pushing process is divided into 120 pushing strokes. According to the traditional test mode, manual measurement is needed to be carried out on the 120 pushing strokes respectively, the test efficiency is low, and the project economy is poor.
Disclosure of utility model
The embodiment of the application provides a bridge displacement monitoring device, which is used for solving the problems of low testing efficiency and poor project economy caused by manual measurement of pushing strokes in the related technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a bridge displacement monitoring device, comprising: the device comprises two groups of laser range finders, two groups of laser receiving screens and a data acquisition device, wherein the laser range finders are arranged on a pushing bridge, and the two groups of laser range finders face opposite directions; along the pushing direction, two groups of laser receiving screens are arranged on two sides of the pushing bridge span, the setting position of each group of laser receiving screens corresponds to the setting position of each group of laser range finders, and the laser receiving screens are used for receiving laser emitted by the laser range finders; the data acquisition device is connected with the laser range finder and the laser receiving screen.
In some embodiments, the two sets of laser receiving screens are arranged at corresponding positions, and in the two sets of laser receiving screens, a first straight line formed by center points of the two correspondingly arranged laser receiving screens is parallel to the central axis of the bridge.
In some embodiments, the first line coincides with the central axis of the bridge in the height direction of the bridge.
In some embodiments, the monitoring device further comprises: one end of the first fixing device is connected with the laser range finder, and the other end of the first fixing device is arranged on the pushing bridge; the second fixing device is connected with the laser receiving screen.
In some embodiments, the first fixture comprises: the first fixing support is used for being connected with the pushing bridge span; the holder is arranged at the top end of the first fixed support, and the holder is detachably connected with the laser range finder.
In some embodiments, the two sets of the laser rangefinders are symmetrically disposed at two ends of the holder.
In some embodiments, the first fixture further comprises a level, the level being mounted on the holder.
In some embodiments, the second fixing device comprises a second fixing bracket, and the laser receiving screen is mounted on the top end of the second fixing bracket.
In some embodiments, the first fixing device and the second fixing device are both provided with a reinforcing device.
In some embodiments, the data acquisition device comprises: the system comprises a data acquisition module, a data analysis module and a data transmission module, wherein the data acquisition module is connected with a laser range finder and a laser receiving screen and is used for acquiring and transmitting measurement data; the data analysis module is connected with the data acquisition module and is used for analyzing and transmitting measurement data; the data transmission module is connected with the data analysis module and is used for receiving and transmitting the measurement data.
The technical scheme provided by the application has the beneficial effects that:
The embodiment of the application provides a bridge displacement monitoring device, which can realize the real-time acquisition of the pushing distance of a pushing bridge span and the displacement change of the pushing bridge span end in the pushing construction process of a bridge by matching a laser range finder with a laser receiving screen and a data acquisition device, thereby greatly improving the working efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second fixing device according to an embodiment of the present application.
In the figure: 1. a laser range finder; 2. a laser receiving screen; 3. a data acquisition device; 4. a first fixing device; 40. a first fixing bracket; 41. a holder; 42. a level gauge; 5. a second fixing device; 50. a second fixing bracket; 6. a reinforcing device; 7. pushing the bridge span.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a bridge displacement monitoring device which can solve the problems of low test efficiency and poor project economy caused by manual measurement of pushing strokes in related technologies.
Referring to fig. 1 to 2, an embodiment of the present application provides a bridge displacement monitoring device, which includes: the two groups of laser range finders 1, the two groups of laser receiving screens 2 and the data acquisition device 3, the laser range finders 1 are arranged on the pushing bridge span 7, and the directions of the two groups of laser range finders 1 are opposite; along the pushing direction, two groups of laser receiving screens 2 are arranged on two sides of a pushing bridge span 7, the arrangement position of each group of laser receiving screens 2 corresponds to the arrangement position of each group of laser range finders 1, and the laser receiving screens 2 are used for receiving laser emitted by the laser range finders 1; the data acquisition device 3 is connected with the laser range finder 1 and the laser receiving screen 2.
According to the application, the laser range finder 1 is matched with the laser receiving screen 2 and the data acquisition device 3, so that the distance of pushing the pushing bridge span 7 and the displacement change of the beam end of the pushing bridge span 7 can be obtained in real time in the bridge pushing construction process, and the working efficiency is greatly improved.
The laser range finder 1 is arranged at the front end of the pushing bridge span 7, and two groups of laser receiving screens 2 are respectively fixed at the top of a stable building in front of the pushing bridge span 7 and the top of the stable building behind the pushing bridge span 7 along the longitudinal bridge direction.
One laser range finder 1 can be arranged in each group of laser range finders 1, and a plurality of laser range finders 1 can also be arranged, and as the setting positions of each group of laser receiving screens 2 correspond to the setting positions of each group of laser range finders 1, the number of the laser receiving screens 2 in each group of laser receiving screens 2 is the same as the number of the laser range finders 1 in each group of laser range finders 1.
Wherein, a laser range finder 1 and a correspondingly arranged laser receiving screen 2 are a set of measuring components, and the correspondence in the application is that: in a set of measuring assemblies, a laser receiving screen 2 in the measuring assembly is positioned on the laser transmitting path of a laser range finder 1 in the measuring assembly, and laser emitted by the laser range finder 1 can be received by the laser receiving screen 2.
When each group of laser range finders 1 comprises one laser range finders 1, each group of laser receiving screens 2 comprises one laser receiving screen 2; when a plurality of laser rangefinders 1 are included in each set of laser rangefinders 1, the plurality of laser rangefinders 1 are arranged along the transverse bridge direction, and the number of laser receiving screens 2 in each set of laser receiving screens 2 is the same as the number of laser rangefinders 1.
On the basis of the above embodiment, in this embodiment, the two sets of the laser receiving screens 2 are arranged in positions corresponding to each other.
In the present embodiment, the setting position correspondence here means: the number of the laser receiving screens 2 in the two groups of laser receiving screens 2 is the same, and in the two groups of laser receiving screens 2, a first straight line formed by the center points of the two laser receiving screens 2 which are correspondingly arranged is parallel to the central axis of the bridge. When the plurality of laser receiving screens 2 are included in each set of laser receiving screens 2, the plurality of laser receiving screens 2 are arranged along the transverse bridge direction, for example, two laser receiving screens 2 are included in each set of laser receiving screens 2, the two sets of laser receiving screens 2 are divided into a first set and a second set for convenience of distinction, the two laser receiving screens 2 of the first set are divided into a number 1 and a number 2, the two laser receiving screens 2 of the second set are also divided into a number 1 and a number 2, wherein a first straight line formed by center points of the number 1 laser receiving screens 2 of the first set and the second set is parallel to the central axis of the bridge, and a first straight line formed by center points of the number 2 laser receiving screens 2 of the first set and the second set is parallel to the central axis of the bridge. The rest of the cases are analogized.
When the two sets of laser receiving screens 2 are correspondingly arranged, the two sets of laser rangefinders 1 are correspondingly arranged. The two groups of laser range finders 1 are divided into a group A and a group B, wherein the group A laser range finders 1 emit laser to the first group of laser receiving screens 2, and the group B laser range finders 1 emit laser to the second group of laser receiving screens 2. The group A laser range finders 1 and the group B laser range finders 1 can synchronously emit laser, and the distance from the laser range finders 1 to the laser receiving screen 2 is tested, which means the distance from the group A laser range finders 1 to the first group of laser receiving screen 2 and the distance from the group B laser range finders 1 to the second group of laser receiving screen 2.
The laser receiving screen 2 is made of a non-specular reflective material or a non-transparent material (e.g., frosted glass material).
Further, along the bridge height direction, the first straight line coincides with the central axis of the bridge, that is, it is assumed that a straight line is arranged in the middle of the top end of the pushing bridge span 7, and along the transverse bridge direction, the two sides of the pushing bridge span 7 are divided into two parts with the same width by the straight line, and the straight line is the central axis of the bridge. The group A laser range finders 1, the group B laser range finders 1, the first group of laser receiving screens 2 and the second group of laser receiving screens 2 are arranged on the central axis of the bridge.
On the basis of the above embodiment, in this implementation, the monitoring device further includes: the device comprises a first fixing device 4 and a second fixing device 5, wherein one end of the first fixing device 4 is connected with the laser range finder 1, and the other end of the first fixing device is arranged on the pushing bridge span 7; the second fixing device 5 is connected with the laser receiving screen 2.
In this embodiment, the first fixing device 4 and the second fixing device 5 can both be adjusted in height, and the heights thereof should be arranged according to the displacement calculation result calculated by theory, so that the laser emitted by the laser range finder 1 in the pushing process needs to be ensured to strike in the range that the laser receiving screen 2 can receive.
Specifically, the first fixing device 4 includes: the first fixing support 40 and the clamp 41, wherein the first fixing support 40 is used for being connected with the pushing bridge span 7; the holder 41 is arranged at the top end of the first fixed bracket 40, and the holder 41 is detachably connected with the laser range finder 1.
The first fixing bracket 40 is fixed at the front end of the pushing bridge span 7, and the clamp 41 is fixed at the top end of the first fixing bracket 40. The first fixture 4 further comprises a level 42, the level 42 being mounted on the holder 41; or the holder 41 is self-leveling. Whether the holder 41 is kept horizontal or not can be judged from the level gauge 42 or the vial bubble, and when the holder 41 is not kept horizontal, the angle of the holder 41 is adjusted to the horizontal direction.
Wherein, because the setting positions of the two groups of laser receiving screens 2 are corresponding, the two groups of laser rangefinders 1 are symmetrically arranged at two ends of the clamp 41, and the two groups of laser rangefinders 1 are reversely arranged through the clamp 41.
On the basis of the above embodiment, in this embodiment, the second fixing device 5 includes the second fixing bracket 50, and the laser receiving screen 2 is mounted on the top end of the second fixing bracket 50.
The second fixing bracket 50 is fixed to the top of the stable building, and the second fixing bracket 50 can also be adjusted in height.
The first fastening means 4 and the second fastening means 5 are each provided with a reinforcement means 6. The reinforcing device 6 is an inclined support structure, the inclined support structure on the first fixing device 4 is obliquely arranged, one end of the inclined support structure is fixed at the top end of the pushing bridge span 7, and the other end of the inclined support structure is fixed on the surface of the first fixing support 40; the diagonal support structure of the second fixing device 5 is disposed obliquely, one end of which is fixed to the top end of the stable building, and the other end of which is fixed to the surface of the second fixing bracket 50.
On the basis of the above embodiment, in the present embodiment, the data acquisition device 3 includes: the system comprises a data acquisition module, a data analysis module and a data transmission module, wherein the data acquisition module is connected with a laser range finder 1 and a laser receiving screen 2 and is used for acquiring and transmitting measurement data; the data analysis module is connected with the data acquisition module and is used for analyzing and transmitting measurement data; the data transmission module is connected with the data analysis module and is used for receiving and transmitting the measurement data.
The data acquisition module is connected with the laser range finder 1 and the laser receiving screen 2 in a wired mode, can acquire data measured by the laser range finder 1 in real time, and after being analyzed and processed by the data analysis module, the data measured by the laser range finder 1 is uploaded to the cloud through the data transmission module.
In this embodiment, the monitoring device further includes a power supply module, where the power supply module is a mobile power supply or a solar power supply device, and supplies power to electronic devices such as the laser range finder 1, the laser receiving screen 2, the data acquisition device 3, and the like.
Before pushing construction, all devices (an optical distance meter, a laser receiving screen 2, a data acquisition device 3 and the like) of the application are installed. And adjusting the clamp 41 to ensure that the laser range finder 1 fixed by the clamp 41 is in the horizontal direction;
Then the laser range finder 1 is started, the distance between the initial laser range finder 1 and the laser receiving screen 2 is set to be L1 and L2, wherein L1 is the distance between the group A laser range finder 1 and the first group of laser receiving screen 2, and L2 is the distance between the group B laser range finder 1 and the second group of laser receiving screen 2. And marks the light spot of the laser range finder 1 on the laser receiving screen 2 at the moment; the distance between the light spot and the top and the bottom of the laser receiving screen 2 is measured, then the height of the first fixing support 40 is adjusted, and then the height of the laser range finder 1 is adjusted, and the laser emitted by the laser range finder 1 in the pushing process is ensured to strike in the range which can be received by the laser receiving screen 2 by combining the theoretical calculation result of the pushing process.
The acquisition frequency of the laser range finder 1 is then set, and can be set to be 10 minutes once, and the frequency of the test can be adjusted on site according to actual needs.
After pushing construction is started, the distance L1 'between the group A laser range finders 1 and the first group of laser receiving screens 2 and the distance L2' between the group B laser range finders 1 and the second group of laser receiving screens 2 are collected in real time.
And calculating a corner a and vertical displacement h of the front end of the pushing bridge span 7, a longitudinal pushing distance L of the pushing bridge span 7 and a vertical displacement h of the front end of the pushing bridge span 7 according to the (L1, L2) and the (L1 ', L2').
Wherein the calculation formula is cosa = (L1+L2)/(L1 '+L2'),
The following steps are obtained: a= arccos ((l1+l2)/(l1 '+l2'));
L＝L2’*cosa-L2＝L2’*(L1+L2)/(L1’+L2’)-L2；
h＝L*tga。
According to the application, the distance between the pushing bridge span 7 and the laser receiving screen 2 is converted through the laser range finder 1 to obtain the rotation a and the vertical displacement at the front end of the pushing bridge span 7 and the distance between the pushing bridge span 7 and the vertical pushing distance, and measurement data can be acquired in real time in the pushing construction process of the bridge after initial installation and debugging are completed, so that the testing efficiency of testing work is improved, and the device has the advantages of small traffic interference, convenience in operation, high testing efficiency and high safety.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Bridge displacement monitoring device, characterized in that it includes:
The two groups of laser range finders (1), the laser range finders (1) are arranged on the pushing bridge span (7), and the two groups of laser range finders (1) face opposite directions;
The two groups of laser receiving screens (2) are arranged on two sides of the pushing bridge span (7) along the pushing direction, the arrangement position of each group of laser receiving screens (2) corresponds to the arrangement position of each group of laser range finders (1), and the laser receiving screens (2) are used for receiving laser emitted by the laser range finders (1);
the data acquisition device (3), the data acquisition device (3) is connected with the laser range finder (1) and the laser receiving screen (2).
2. The bridge displacement monitoring device of claim 1, wherein:
The two groups of laser receiving screens (2) are arranged at corresponding positions, and in the two groups of laser receiving screens (2), a first straight line formed by the central points of the two laser receiving screens (2) which are correspondingly arranged is parallel to the central axis of the bridge.
3. The bridge displacement monitoring device of claim 2, wherein:
Along the bridge height direction, the first straight line coincides with the central axis of the bridge.
4. The bridge displacement monitoring device of claim 1, further comprising:
one end of the first fixing device (4) is connected with the laser range finder (1), and the other end of the first fixing device (4) is arranged on the pushing bridge span (7);
and the second fixing device (5) is connected with the laser receiving screen (2).
5. Bridge displacement monitoring device according to claim 4, wherein the first fixing means (4) comprises:
The first fixing support (40) is used for being connected with the pushing bridge span (7);
The clamp holder (41), clamp holder (41) set up in first fixed bolster (40) top, clamp holder (41) are connected with laser range finder (1) can dismantle.
6. The bridge displacement monitoring device of claim 5, wherein:
The two groups of laser range finders (1) are symmetrically arranged at two ends of the clamp holder (41).
7. The bridge displacement monitoring device of claim 5, wherein:
The first fixing device (4) further comprises a level (42), and the level (42) is mounted on the holder (41).
8. The bridge displacement monitoring device of claim 4, wherein:
The second fixing device (5) comprises a second fixing support (50), and the laser receiving screen (2) is arranged at the top end of the second fixing support (50).
9. The bridge displacement monitoring device of claim 4, wherein:
The first fixing device (4) and the second fixing device (5) are respectively provided with a reinforcing device (6).
10. Bridge displacement monitoring device according to claim 1, wherein the data acquisition device (3) comprises:
The data acquisition module is connected with the laser range finder (1) and the laser receiving screen (2) and is used for acquiring and transmitting measurement data;
The data analysis module is connected with the data acquisition module and is used for analyzing and transmitting measurement data;
And the data transmission module is connected with the data analysis module and is used for receiving and transmitting the measurement data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322728096.0U CN220818896U (en) | 2023-10-11 | 2023-10-11 | Bridge displacement monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322728096.0U CN220818896U (en) | 2023-10-11 | 2023-10-11 | Bridge displacement monitoring device |
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| CN220818896U true CN220818896U (en) | 2024-04-19 |
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| CN202322728096.0U Active CN220818896U (en) | 2023-10-11 | 2023-10-11 | Bridge displacement monitoring device |
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| CN (1) | CN220818896U (en) |
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