Method and system for representing service performance of bridge, terminal and medium

Abstract

The invention provides a method and system for representing bridge service performance, a terminal and a medium, and belongs to the technical field of bridge engineering. The method comprises the following steps: acquiring service performance evaluation index information of a bridge to be tested, wherein the service performance evaluation index information comprises technical condition evaluation result information, traffic capacity information, bearing capacity information, disaster resistance information and driving comfort information; and calculating the service performance of the to-be-tested bridge through a bridge service performance formula based on the service performance evaluation index information. According to the method, the actual condition of the bridge can be reflected more accurately, and the one-sidedness possibly brought by a single index is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, and in particular to a method, system, terminal and medium for characterizing the service performance of a bridge. Background Art

[0002] In the transportation network, bridges play a vital role as key infrastructure connecting different geographical areas. They not only carry the daily passage of vehicles and pedestrians, but also undertake important tasks such as emergency rescue and material transportation. Therefore, the service performance of bridges is directly related to the safety and efficiency of road traffic as well as the reliability and stability of the entire transportation system.

[0003] However, bridges face many challenges during their use. As the service life increases, the structural performance of bridges will gradually deteriorate, which is an inevitable natural law. At the same time, natural environmental factors such as floods, frost damage, typhoons, earthquakes, etc. will also cause varying degrees of damage to bridges. In addition, the long-term effects of traffic loads, including changes in the number, weight, speed and driving patterns of vehicles, will pose a threat to the structural safety of bridges. These factors work together to cause the service performance of bridges to gradually decline, posing potential risks to traffic safety.

[0004] Traditional bridge service performance evaluation methods are often too simplistic, focusing mainly on the structural integrity and load-bearing capacity of bridges. Although this evaluation method can reflect the structural safety of bridges to a certain extent, it ignores the multi-faceted performance of bridges in actual operation.

[0005] Therefore, traditional bridge service performance evaluation methods can no longer meet the current transportation system's needs for comprehensive and accurate evaluation of bridge performance. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention proposes a method for characterizing the service performance of a bridge to solve the technical problems existing in the prior art.

[0007] The technical solution adopted by the present invention is:

[0008] A first aspect of an embodiment of the present application provides a method for characterizing service performance of a bridge, the method comprising:

[0009] Acquiring service performance evaluation index information of the bridge to be tested, wherein the service performance evaluation index information includes technical condition assessment result information, traffic capacity information, load-bearing capacity information, disaster resistance capacity information and driving comfort information;

[0010] Based on the service performance evaluation index information, the service performance of the bridge to be tested is calculated using the bridge service performance formula.

[0011] Furthermore, the technical assessment result information is obtained by the following formula:

[0012] J=α 1 ×α 2 ×A 1

[0013] Among them, J is the technical status assessment result information, A 1 is the value of the last technical status assessment result, α 1 is the age correction factor, α 2 is the bridge length correction factor.

[0014] Furthermore, the traffic capacity information is obtained by the following formula:

[0015] T=β 1 ×A 2 +β 2 ×B 2

[0016] Among them, T is the traffic capacity information, A 2 is the ratio of designed traffic volume to actual traffic volume, B2 is the road service level, β 1 is the weight coefficient of the ratio of designed traffic volume to actual traffic volume, β 2 is the weight coefficient of road service level.

[0017] Furthermore, the carrying capacity information is obtained by the following formula:

[0018] C=γ 1 ×A 3 +γ 2 ×B 3

[0019] Among them, C is the carrying capacity information; A 3 is the structural calculation result; B 3 is the load test result; γ 1 is the weight coefficient of the structural check result; γ 2 is the weight coefficient of the load test results.

[0020] Furthermore, the disaster resistance capability information is obtained by expressing it in the following formula:

[0021] K=δ 1 ×A 4 +δ 2 ×B 4 +δ 3 ×C 4 +δ 4 ×D 4

[0022] Among them, K is the disaster resistance information, A 4 is the flood resistance assessment result, B 4 is the result of frost resistance assessment, C 4 is the result of typhoon resistance assessment, D 4 is the seismic capacity assessment result, δ 1 is the weight coefficient of flood resistance, δ 2 is the weight coefficient of antifreeze ability, δ 3 is the weight coefficient of typhoon resistance, δ 4 is the weight coefficient of earthquake resistance.

[0023] Furthermore, the driving comfort information is obtained by expressing in the following formula:

[0024] S=ε 1 ×A 5 +ε 2 ×B 5

[0025] Among them, S is the driving comfort information, A 5 is the pavement technical condition index, B 5 is the road surface index, ε 1 is the weight coefficient of the pavement technical condition index, ε 2 is the weight coefficient of the pavement-related index.

[0026] Furthermore, the bridge service performance formula is expressed as:

[0027] QF=α×J+β×T+γ×C+δ×K+ε×S

[0028] Among them, J is the technical condition assessment result information, T is the traffic capacity information, C is the carrying capacity information, K is the disaster resistance information, S is the driving comfort information, α is the weight of the technical condition assessment result information, β is the weight of the traffic capacity information, γ is the weight of the carrying capacity information, δ is the weight of the disaster resistance information, and ε is the weight of the driving comfort information.

[0029] A second aspect of an embodiment of the present application provides a system for characterizing service performance of a bridge, the system comprising:

[0030] A data acquisition module is used to obtain service performance evaluation index information of the bridge to be tested, wherein the service performance evaluation index information includes: technical status assessment result information, traffic capacity information, load-bearing capacity information, disaster resistance capacity information and driving comfort information;

[0031] A service performance evaluation module is used to obtain the service performance of the bridge to be tested based on the service performance evaluation index information.

[0032] A third aspect of an embodiment of the present application provides a terminal, comprising a processor, an input device, an output device and a memory, wherein the processor, input device, output device and memory are interconnected, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute a method as described in any one of the first aspects of the embodiments of the present application.

[0033] A fourth aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes a method as described in any one of the first aspects of the embodiment of the present application.

[0034] It can be seen from the above technical solution that the beneficial technical effects of the present invention are as follows:

[0035] 1. The present invention evaluates the service performance of a bridge by comprehensively considering the technical status assessment results, traffic capacity, load-bearing capacity, disaster resistance and driving comfort. This comprehensive evaluation method can more accurately reflect the actual condition of the bridge and avoid the one-sidedness that may be caused by a single indicator. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0037] Figure 1 This is a flow chart of a method according to an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of a system according to an embodiment of the present invention;

[0039] Figure 3 Schematic diagram of a terminal according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0041] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0042] Example

[0043] This embodiment conducts a service performance evaluation on a bridge on a highway. The bridge has been in operation for many years, and a detailed service performance evaluation is required to ensure its structural safety, applicability and durability.

[0044] This embodiment provides a method for characterizing the service performance of a bridge. Figure 1 As shown, the method includes:

[0045] S01: obtaining service performance evaluation index information of the bridge to be tested, wherein the service performance evaluation index information includes: technical condition assessment result information, traffic capacity information, load-bearing capacity information, disaster resistance capacity information and driving comfort information;

[0046] S02: Based on the service performance evaluation index information, the service performance of the bridge to be tested is calculated using a bridge service performance formula.

[0047] In this embodiment, before obtaining the service performance evaluation index information of the bridge to be tested in step S01, it is first necessary to collect and sort out the data of the bridge whose service performance needs to be characterized, and then select the required bridge data for use in combination with the relevant parameters in the five indicators of bridge service performance. Then, according to the five indicators of bridge service performance that require on-site observation or related tests, corresponding on-site surveys and tests are carried out respectively, and corresponding data are obtained for use.

[0048] 1. Data collection and collation include:

[0049] Bridge design period data: including bridge design drawings, structural form, material type, design load, etc.

[0050] Operation period data: including previous inspection reports, maintenance records, traffic accident records, etc.

[0051] Basic information of bridges: including bridge location, length, width, span, etc.

[0052] 2. Selection of evaluation indicators and use of data:

[0053] In this implementation, based on the five indicators of bridge service performance evaluation (technical status assessment results, traffic capacity, load-bearing capacity, disaster resistance, and comfort), the following data are selected for use:

[0054] Technical condition assessment results: Use the technical condition assessment results in previous inspection reports and make corrections based on the age correction factor and bridge length correction factor.

[0055] Traffic capacity: Use traffic flow monitoring data to calculate the ratio of design traffic volume to actual traffic volume, and refer to the road service level evaluation standards.

[0056] Load-bearing capacity: Use structural verification report and load test report.

[0057] Disaster resistance: Refer to historical meteorological data, geological survey reports and bridge disaster resistance design information.

[0058] Comfort: Use the pavement technical condition index test report and pavement ancillary facilities inspection report.

[0059] 3. Site investigation and testing:

[0060] On-site technical condition survey: Conduct a comprehensive inspection of the bridge and record any cracks, rust, peeling and other defects.

[0061] Capacity observation: Traffic flow monitoring equipment is installed at both ends of the bridge to continuously observe traffic flow for one week.

[0062] Bearing capacity test: static load test and dynamic load test are carried out to test the deformation and stress of the bridge under load.

[0063] Disaster resistance assessment: Based on historical meteorological data and geological survey reports, the bridge's ability to withstand disasters such as floods, frost damage, typhoons and earthquakes is assessed.

[0064] Comfort inspection: check the flatness of the bridge deck, vehicle jumping at the bridge head, bridge deck noise and lighting facilities, etc.

[0065] 4. Evaluation Index Calculation

[0066] 1. Technical assessment results information:

[0067] J=α 1 ×α 2 ×A 1

[0068] Among them, J is the technical status assessment result information, A 1 is the value of the last technical status assessment result, α 1 is the age correction factor, α 2 is the bridge length correction factor.

[0069] 2. Traffic capacity information:

[0070] T=β 1 ×A 2 +β 2 ×B 2

[0071] Among them, T is the traffic capacity information, A 2 is the ratio of designed traffic volume to actual traffic volume, B 2 is the road service level, β 1 is the weight coefficient of the ratio of designed traffic volume to actual traffic volume, β2 is the weight coefficient of road service level.

[0072] 3. Carrying capacity information:

[0073] C=γ 1 ×A 3 +γ 2 ×B 3

[0074] Among them, C is the carrying capacity information; A 3 is the structural calculation result; B 3 is the load test result; γ 1 is the weight coefficient of the structural check result; γ 2 is the weight coefficient of the load test results.

[0075] 4. Disaster resistance information:

[0076] K=δ 1 ×A 4 +δ 2 ×B 4 +δ 3 ×C 4 +δ 4 ×D 4

[0077] Among them, K is the disaster resistance information, A 4 is the flood resistance assessment result, B 4 is the result of frost resistance assessment, C 4 is the result of typhoon resistance assessment, D 4 is the result of earthquake resistance assessment, δ 1 is the weight coefficient of flood resistance, δ 2 is the weight coefficient of antifreeze ability, δ 3 is the weight coefficient of typhoon resistance, δ 4 is the weight coefficient of earthquake resistance.

[0078] 5. Driving comfort information:

[0079] S=ε 1 ×A 5 +ε 2 ×B 5

[0080] Among them, S is the driving comfort information, A 5 is the pavement technical condition index, B 5 is the road surface index, ε 1 is the weight coefficient of the pavement technical condition index, ε 2 is the weight coefficient of the pavement-related index.

[0081] 5. Bridge service performance calculation

[0082] Finally, the calculation results of each evaluation index are substituted into the bridge service performance index formula to calculate the value of the bridge service performance:

[0083] QF=α×J+β×T+γ×C+δ×K+ε×S

[0084] Among them, QF is the service performance of the bridge, J is the technical condition assessment result information, T is the traffic capacity information, C is the bearing capacity information, K is the disaster resistance information, S is the driving comfort information, α is the weight of the technical condition assessment result information, β is the weight of the traffic capacity information, γ is the weight of the bearing capacity information, δ is the weight of the disaster resistance information, and ε is the weight of the driving comfort information.

[0085] In this embodiment, the full marks of the five evaluation indicators in the bridge service performance calculation formula are all 100 points. The higher the score, the better the performance of the bridge in that aspect. The five evaluation indicators are weighted summed to obtain the bridge service performance QF. The bridge service performance indicators proposed this time are divided into the following four evaluation levels, as shown in Table 1, for reference by relevant units.

[0086] Table 1 Evaluation grade table of bridge service performance index

[0087]

[0088]

[0089] like Figure 2 As shown, an embodiment of the present application provides a system for characterizing the service performance of a bridge, the system comprising:

[0090] The data acquisition module 201 obtains service performance evaluation index information of the bridge to be tested, wherein the service performance evaluation index information includes: technical status assessment result information, traffic capacity information, load-bearing capacity information, disaster resistance capacity information and driving comfort information;

[0091] The service performance evaluation module 202 obtains the service performance of the bridge to be tested based on the service performance evaluation index information.

[0092] like Figure 3 As shown, an embodiment of the present application provides a terminal, including a processor, an input device, an output device and a memory, wherein the processor, input device, output device and memory are interconnected, wherein the memory is used to store a computer program, and the computer program includes program instructions, and the processor is configured to call the program instructions to execute part or all of the steps described in a method for characterizing the service performance of a bridge provided in this embodiment.

[0093] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. The computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes part or all of the steps described in a method for characterizing the service performance of a bridge provided in this embodiment.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A method for characterizing the service performance of a bridge, characterized in that: The method comprises: Acquiring service performance evaluation index information of the bridge to be tested, wherein the service performance evaluation index information includes: technical condition assessment result information, traffic capacity information, load-bearing capacity information, disaster resistance capacity information and driving comfort information; Based on the service performance evaluation index information, the service performance of the bridge to be tested is calculated using the bridge service performance formula.

2. A method for characterizing bridge service performance according to claim 1, characterized in that: The technical assessment result information is obtained through the following formula: J=α1×α2×A1 Among them, J is the technical condition assessment result information, A1 is the value of the last technical condition assessment result, α1 is the age correction coefficient, and α2 is the bridge length correction coefficient.

3. A method for characterizing bridge service performance according to claim 2, characterized in that: The traffic capacity information is obtained by expressing it in the following formula: T=β1×A2+β2×B2 Among them, T is the traffic capacity information, A2 is the ratio of the designed traffic volume to the actual traffic volume, B2 is the road service level, β1 is the weight coefficient of the ratio of the designed traffic volume to the actual traffic volume, and β2 is the weight coefficient of the road service level.

4. A method for characterizing bridge service performance according to claim 3, characterized in that: The carrying capacity information is obtained by using the following formula: C=γ1×A3+γ2×B3 Among them, C is the bearing capacity information; A3 is the structural calculation result; B3 is the load test result; γ1 is the weight coefficient of the structural calculation result; γ2 is the weight coefficient of the load test result.

5. A method for characterizing the service performance of a bridge according to claim 4, characterized in that: The disaster resistance capacity information is obtained through the following formula: K=δ1×A4+δ2×B4+δ3×C4+δ4×D4 Among them, K is the disaster resistance capability information, A4 is the flood resistance capability assessment result, B4 is the frost resistance capability assessment result, C4 is the typhoon resistance capability assessment result, D4 is the earthquake resistance capability assessment result, δ1 is the weight coefficient of flood resistance capability, δ2 is the weight coefficient of frost resistance capability, δ3 is the weight coefficient of typhoon resistance capability, and δ4 is the weight coefficient of earthquake resistance capability.

6. A method for characterizing the service performance of a bridge according to claim 5, characterized in that: The driving comfort information is obtained by the following formula: S=ε1×A5+ε2×B5 Among them, S is the driving comfort information, A5 is the road surface technical condition index, B5 is the road surface subsidiary index, ε1 is the weight coefficient of the road surface technical condition index, and ε2 is the weight coefficient of the road surface subsidiary index.

7. A method for characterizing bridge service performance according to claim 6, characterized in that: The bridge service performance formula is expressed as: QF=α×J+β×T+γ×C+δ×K+ε×S Among them, J is the technical condition assessment result information, T is the traffic capacity information, C is the carrying capacity information, K is the disaster resistance information, S is the driving comfort information, α is the weight of the technical condition assessment result information, β is the weight of the traffic capacity information, γ is the weight of the carrying capacity information, δ is the weight of the disaster resistance information, and ε is the weight of the driving comfort information.

8. A system for characterizing the service performance of a bridge, characterized in that: The system comprises: A data acquisition module is used to obtain service performance evaluation index information of the bridge to be tested, wherein the service performance evaluation index information includes: technical status assessment result information, traffic capacity information, load-bearing capacity information, disaster resistance capacity information and driving comfort information; A service performance evaluation module is used to obtain the service performance of the bridge to be tested based on the service performance evaluation index information.

9. A terminal, characterized in that: The method comprises a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are interconnected, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 7.

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