A method for sensitivity analysis of bridge construction deflection

By establishing a historical database and a hybrid learner, the influence of various parameters on the deflection of the main beam during bridge construction was analyzed, which solved the problems of resource waste and low construction efficiency, and enabled strict monitoring and control of parameters with a significant impact.

CN115859419BActive Publication Date: 2026-06-30CHINA RAILWAY SEVENTH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY SEVENTH GRP CO LTD
Filing Date
2022-10-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In bridge construction, existing technologies struggle to effectively analyze the impact of various parameters on the deflection of the main girder, leading to resource waste and low construction efficiency.

Method used

By establishing a historical database and standardizing parameters, and combining finite element analysis, arithmetic mean centerline method and Sobol sensitivity analysis system, the influence of each parameter on the main beam deflection is calculated, and a hybrid learner is used for data integration and analysis.

Benefits of technology

It enables strict monitoring and control of parameters with significant impact, avoiding resource waste and improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a bridge construction deflection sensitivity analysis method, comprising the following steps: Step S1, establishing a historical database; Step S2, standardizing each parameter in the historical database; Step S3, based on the standardized parameter data, taking the average of all data for that parameter, and generating random numbers with a sample size of N from the parameter distribution; Step S4, integrating a hybrid learner; Step S5, establishing a three-dimensional deflection model of the main beam using the hybrid learner; Step S6, obtaining multiple deflection values ​​as sample output values ​​using the arithmetic mean median method; Step S7, calculating the conditional expectation of each parameter with respect to the sample output values; Step S8, calculating the magnitude of the influence of the parameters on the main beam deflection using the Sobol sensitivity analysis system. This invention, by analyzing the influence of each parameter on the main beam deflection, guides the strict observation and control of parameters with a significant impact during construction, thereby avoiding resource waste and reduced construction efficiency.
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Citation Information

Patent Citations

  • CN107491627A

  • CN108280299A