BIM-based bridge detection information management method and system

Abstract

The invention discloses a BIM-based bridge detection information management method and system. The system comprises a data acquisition module, a BIM model establishment module, a GIS optimization module, a data conversion module, a data selection module and a verification module. The method comprises the steps of constructing actually-measured data of a measured bridge by means of multiple unmanned aerial vehicles, three-dimensional laser and sensors, performing standardization and structuralization processing in combination with data of all stages, and then a bridge BIM model is constructed based on an existing BIM platform; performing data supplement and optimization by using a GIS technology, and performing finite element analysis on the optimized bridge BIM model; converting a finite element analysis result into a grey-scale map; according to the highway bridge technical condition evaluation standard, gray values are divided into five levels, establishing a corresponding coordinatesystem, importing finite element analysis results larger than an evaluation threshold value and corresponding data into a server, obtaining bridge data pairs of corresponding components again for verification, and a standard, visual and accurate detection report can be obtained.

Description

technical field [0001] The invention relates to the technical field of bridge monitoring, in particular to a BIM-based bridge detection information management method and system. Background technique [0002] The cost of the bridge structure is high, and the service life is long. During its service period of tens or even hundreds of years, the coupling effects of environmental corrosion, material aging, long-term effects of dynamic and static loads, fatigue effects, and mutation effects, etc. It will inevitably lead to structural damage accumulation and resistance attenuation, and even catastrophic accidents in extreme cases. According to the latest statistics of the transportation industry, there are 779,200 road bridges in my country, and small and medium bridges account for nearly 90%. After the large-scale bridge construction, the operation and management of the bridge followed. The bridge inspection aimed at ensuring the safety of the bridge during its service period i...

AI Technical Summary

Problems solved by technology

[0003]The traditional bridge inspection information management method mainly uses manual inspection as the approach, subjective judgment as the basis, and inspection report as the carrier, resulting in the existing bridge inspection information There are many flaws in management

Mainly include: 1) Fragmentation of information, the information correlation of text, tables, and images in the same test report is weak, and it is difficult to automatically form effective dynamic analysis for multiple test reports at different test time points; 2) Records are not standardized , most of the tests are recorded after the subjective judgment of the testers, and too much depends on the personal qualities of the testers. If the standards are not strict and uniform, it is easy to cause blurred, missing or serious deviations in the recorded information; 3) The expression is not intuitive, and one-dimensional text is used Or the detection information described by two-dimensional images, it is difficult to accurately reproduce the real state after information feedback; 4) Synchronous evaluation cannot be achieved. After simple recording of multi-type detection information, there is still a large amount of follow-up work for information summary and comprehensive analysis. Finally, the results obtained are not standard, intuitive and accurate

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