CN219641130U

CN219641130U - Bridge stress model

Info

Publication number: CN219641130U
Application number: CN202320737075.2U
Authority: CN
Inventors: 李烨
Original assignee: Xiangtan University
Current assignee: Xiangtan University
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-09-05
Anticipated expiration: 2033-04-06

Abstract

The utility model relates to the technical field of bridge models, in particular to a bridge stress model, which comprises a bridge plate and support seats uniformly distributed below the bridge plate, wherein a machine case is arranged in the support seats, a piezoelectric sensor, a signal transmission module, a signal conversion module and a signal collection module are arranged in the machine case, and the piezoelectric sensor, the signal transmission module, the signal conversion module and the signal collection module are electrically connected, and the signal transmission module, the signal conversion module and the signal collection module are connected with a data processing terminal; bridge arch plates are inserted into two sides of the upper surface of the bridge plate, the end parts, extending to the lower side, of the bridge arch plates, extending to the inner side, of the bridge arch plates, penetrating through the bridge plates, are connected with a support, and one end, extending to the inner side, of the bridge arch plates, penetrating through the support, is connected with a feeler lever I. The device is reasonable in design, the bridge compression data are visually displayed on the display screen of the data processing terminal, and in the bridge model stress analysis process, engineers can complete visual observation, so that the rapid grasp of the data generated when the bridge is stressed and deformed everywhere is achieved.

Description

Bridge stress model

Technical Field

The utility model relates to the technical field of bridge models, in particular to a bridge stress model.

Background

Bridge, refers to a building constructed for the road to cross natural or artificial obstacles. Bridge is generally composed of five major components and five minor components. Five major components refer to bridge span upper structure and lower part structure that bridge bears car or other vehicle transportation load, are the assurance of bridge structure safety, include: (1) Bridge span structure (or bridge hole structure, superstructure); (2) bridge support systems, (3) bridge piers and abutment; (4) a bearing platform; (5) digging a well or pile foundation. Five small parts refer to parts directly related to bridge service functions, which were called deck constructions in the past, including: (1) bridge deck pavement; (2) a water drainage system; (3) a railing; (4) an expansion joint; (5) light illumination. The auxiliary structure of the large bridge is also provided with bridge head forts, approach bridges and the like.

Before bridge construction, stress analysis is needed according to design drawings, and the conditions possibly encountered during the later bridge use can be prejudged through the stress analysis, so that precautions are followed, in the actual analysis process of engineers, only drawings are adopted for printing, stress analysis, display and discussion are carried out on the drawings, the display effect is not visual enough, and the display of data is manually calculated, so that the use is not facilitated. For this reason, there is a need to propose an improvement for solving the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the bridge stress model, wherein the bridge stress data are visually displayed on a display screen of a data processing terminal, and engineers can visually observe the bridge stress data in the process of analyzing the bridge stress, so that the rapid grasp of the data generated in the process of stress deformation of the bridge is realized, and the bridge stress model is beneficial to use.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the bridge stress model comprises a bridge plate and support seats uniformly distributed below the bridge plate, wherein a machine case is arranged in the support seats, a piezoelectric sensor, a signal transmission module, a signal conversion module and a signal collection module are arranged in the machine case, the piezoelectric sensor, the signal transmission module, the signal conversion module and the signal collection module are electrically connected, and the signal transmission module, the signal conversion module and the signal collection module are connected with a data processing terminal; the bridge arch plate is inserted into two sides of the upper surface of the bridge plate, the end part of the bridge arch plate, which penetrates through the bridge plate and extends to the lower side, is connected with the support, one end of the bridge arch plate, which penetrates through the support and extends to the inside, is connected with the first contact rod, the first contact rod is contacted with the signal collecting module in the chassis, the upper surface of the support is provided with the upright post, the upright post is connected with the pier cap, and the pier cap is connected with the lower surface of the bridge plate; the bridge arch plate is connected with a inhaul cable corresponding to the lower side of the bridge plate, a bearing box is embedded and installed on the upper surface of the bridge plate corresponding to the inhaul cable, a piezoelectric ceramic piece is arranged in the bearing box, and the piezoelectric ceramic piece is electrically connected with the signal transmission module.

Preferably, the cable runs through the bearing box and extends to inside one end and be connected with piezoceramics piece, the cable is evenly distributed and is the state of tightening.

Preferably, the sides of the supports, which are close to each other, are commonly connected with a bearing platform, and the bearing platform is of a horizontal solid structure.

Preferably, the lower end of the upright post is connected with a second feeler lever, the second feeler lever penetrates through the support and extends into the chassis, and the lower end of the second feeler lever is contacted with the signal collecting module in the chassis.

Preferably, the chassis is disposed above the internal cavity of the support, and two sides of the upper end of the chassis are vertically aligned with the bridge arch plate.

Preferably, the bearing box is arranged on the bridge plate in a non-penetrating way, and the bearing box is a steel structure box body.

Compared with the prior art, the utility model has the following beneficial effects:

and an engineer finishes stress analysis of each part of the bridge through the model, and finishes data transmission of stress of each part of the bridge according to the arranged piezoelectric sensor, piezoelectric ceramic piece, signal collecting module, signal transmission module and signal conversion module, and the stress data are displayed on a display screen, so that the stress condition of the bridge model is visually observed, and the bridge model is beneficial to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the bottom view of the present utility model;

FIG. 3 is a cross-sectional view of the internal structure of the mount of the present utility model;

fig. 4 is a schematic view of the internal structure of the carrying case of the present utility model.

In the figure: 1. a bridge plate; 2. bridge arch plates; 3. a support; 4. bearing platform; 5. a carrying case; 6. a column; 7. a guy cable; 8. pier caps; 9. a chassis; 10. a feeler lever I; 11. a second feeler lever; 12. piezoelectric ceramic plates.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

The bridge stress model shown in the drawings 1-4 comprises a bridge plate 1 and a support 3 uniformly distributed below the bridge plate 1, wherein a case 9 is arranged in the support 3, a piezoelectric sensor, a signal transmission module, a signal conversion module and a signal collection module are arranged in the case 9, the piezoelectric sensor, the signal transmission module, the signal conversion module and the signal collection module are electrically connected, and the signal transmission module, the signal conversion module and the signal collection module are connected with a data processing terminal; bridge arch plates 2 are inserted into two sides of the upper surface of the bridge plate 1, the end parts, extending to the lower side, of the bridge arch plates 2 penetrating through the bridge plate 1 are connected with supports 3, one end, extending to the inside, of each bridge arch plate 2 penetrating through each support 3 is connected with a first feeler lever 10, each feeler lever 10 is contacted with a signal collecting module in a case 9, an upright post 6 is mounted on the upper surface of each support 3, pier caps 8 are connected onto the upright posts 6, and the pier caps 8 are connected with the lower surface of the bridge plate 1; the bridge arch plate 2 is connected with the cable 7 corresponding to the downside of the bridge plate 1, and the bearing box 5 is installed to the upper surface embedding of the bridge plate 1 corresponding to the cable 7, is provided with piezoceramics piece 12 in the bearing box 5, and piezoceramics piece 12 is connected with signal transmission module electricity.

When the bridge simulation device works, the models are horizontally placed, the two ends of the bridge plate 1 are respectively aligned with the road models, then simulation traffic is carried out according to props of an experiment place, after traffic is carried out, the pressure born by the bridge is supported under the main structures such as the bridge plate 1, the bridge arch plate 2 and the support 3, at the moment, the bridge arch plate 2 is pressed downwards and directly drives the feeler lever 10 to be in direct contact with the piezoelectric sensor in the case 9, the piezoelectric sensor is compressed after being contacted and generates electric signals, then the signal collection of the piezoelectric sensor is completed through the signal collection module, the electric signals are converted into digital signals through the signal conversion module, the digital signals are transmitted to the signal transmission module, the signal transmission of the data processing terminal is completed, further engineers finish the collection of the pressure data born by the bridge models, and accordingly the rapid simulation of the stress of the bridge in the laboratory is completed, and the pressed data are visually displayed on the display screen of the data processing terminal.

The cable 7 runs through the bearing box 5 and extends to inside one end and be connected with piezoceramics piece 12, and cable 7 is evenly distributed and is the state of tightening, and one side that support 3 is close to each other is connected with the cushion cap 4 jointly, and the cushion cap 4 is the solid structure of horizontal form.

The lower extreme of stand 6 is connected with feeler lever two 11, and feeler lever two 11 runs through support 3 and extends to in the quick-witted case 9, and feeler lever two 11 lower extreme contacts with the signal collection module in the quick-witted case 9, and quick-witted case 9 sets up in the top of the inside cavity of support 3, and the upper end both sides of quick-witted case 9 all align with bridge arch board 2 looks perpendicular, and load-bearing box 5 non-run-through sets up on bridge board 1, and load-bearing box 5 is the steel construction box.

The working principle of the utility model is as follows:

when the bridge stress model is used, engineers complete stress analysis of the bridge through the model, and complete data transmission of stress of the bridge according to the arranged piezoelectric sensor, piezoelectric ceramic sheet 12, signal collecting module, signal transmission module and signal conversion module as shown in the attached figures 1-4 of the specification;

the method comprises the following steps: firstly, horizontally placing a model, respectively aligning two ends of a bridge deck 1 with a road model, then carrying out simulated traffic according to props of an experiment place, supporting the bridge under the main structures such as the bridge deck 1, a bridge arch deck 2 and a support 3, wherein the bridge arch deck 2 is downwards pressed and directly drives a feeler lever 10 to be in direct contact with a piezoelectric sensor in a case 9, compressing the piezoelectric sensor after being contacted and generating an electric signal, immediately completing signal collection of the piezoelectric sensor through a signal collecting module, converting the electric signal into a digital signal by a signal converting module, transmitting the digital signal to a signal transmitting module, completing signal transmission of a data processing terminal, completing the collection of pressure data received by a bridge model by a further engineer, completing the quick simulation of bridge stress in a laboratory, visually displaying the pressed data on a display screen of the data processing terminal, and enabling an engineer to complete visual observation in the bridge model stress analysis process, so as to quickly grasp data generated when the engineer is stressed everywhere, and being beneficial to the simulation experiment of the engineer;

to sum up: in the using process of the bridge stress model, the bridge stress data are visually displayed on the display screen of the data processing terminal, and in the bridge stress analysis process, engineers can complete visual observation, so that the rapid grasp of the data generated when the bridge is stressed and deformed everywhere is achieved, and the bridge stress model is beneficial to use.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bridge atress model which characterized in that: the intelligent bridge comprises a bridge plate (1) and support seats (3) uniformly distributed below the bridge plate (1), wherein a machine case (9) is arranged in the support seats (3), a piezoelectric sensor, a signal transmission module, a signal conversion module and a signal collection module are arranged in the machine case (9), the piezoelectric sensor, the signal transmission module, the signal conversion module and the signal collection module are electrically connected, and the signal transmission module, the signal conversion module and the signal collection module are connected with a data processing terminal; bridge arch plates (2) are inserted into two sides of the upper surface of the bridge plate (1), the end parts, extending to the lower side, of the bridge arch plates (2) penetrate through the bridge plate (1) are connected with supports (3), one ends, extending to the inside, of the bridge arch plates (2) penetrate through the supports (3) are connected with feeler levers (10), the feeler levers (10) are contacted with a signal collecting module in a case (9), stand columns (6) are mounted on the upper surface of the supports (3), pier caps (8) are connected onto the stand columns (6), and the pier caps (8) are connected with the lower surface of the bridge plate (1); the bridge arch plate (2) is connected with a guy cable (7) corresponding to the lower side of the bridge plate (1), a bearing box (5) is embedded and installed on the upper surface of the bridge plate (1) corresponding to the guy cable (7), a piezoelectric ceramic piece (12) is arranged in the bearing box (5), and the piezoelectric ceramic piece (12) is electrically connected with the signal transmission module.

2. The bridge stress model according to claim 1, wherein one end of the stay cable (7) extending to the inside through the bearing box (5) is connected with the piezoelectric ceramic sheet (12), and the stay cable (7) is uniformly distributed and in a tightening state.

3. Bridge stress model according to claim 1, characterized in that the sides of the supports (3) close to each other are commonly connected with a bearing platform (4), and the bearing platform (4) is of a horizontal solid structure.

4. The bridge stress model according to claim 1, wherein the lower end of the upright post (6) is connected with a second feeler lever (11), the second feeler lever (11) extends into the chassis (9) through the support (3), and the lower end of the second feeler lever (11) is in contact with the signal collecting module in the chassis (9).

5. The bridge stress model according to claim 1, wherein the chassis (9) is disposed above the internal cavity of the support (3), and two sides of the upper end of the chassis (9) are vertically aligned with the bridge arch plate (2).

6. The bridge stress model according to claim 1, wherein the bearing box (5) is arranged on the bridge deck (1) in a non-penetrating manner, and the bearing box (5) is a steel structure box body.