A bridge technical condition evaluation method based on BIM

Abstract

The invention discloses a bridge technical condition evaluation method based on BIM. The method comprises the following steps: creating a bridge BIM model; inputting disease information; classifying and counting components; evaluating the technical status of components; evaluating the technical status of the site; evaluating overall technical status; analyzing the trend of disease development. Themethod of the invention can improve the defects of information fragmentation, non-standard recording, non-visual expression and the like existing in a conventional bridge technical condition assessment method, and has the complete steps from the collection, analysis to application of the bridge disease information. The method can collect all kinds of bridge disease information efficiently and accurately and realize the standardized record of disease information and integrated management. The disease information is transformed into three-dimensional visualization information by BIM technology,and the visual expression is realized. Through the statistical analysis of the disease information, the intelligent evaluation of the technical status of each level of the bridge can be realized. Themethod provides a basis for scientifically and reasonably formulating bridge management and maintenance plan and carrying out bridge management and maintenance work.

Description

technical field [0001] The invention relates to the field of structural safety detection, in particular to a BIM-based bridge technical condition assessment method. 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 the accumulation of structural diseases and the decline of resistance, and even lead to 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. Bridge technical status assessment is the basic work of bridge operation and manageme...

AI Technical Summary

Problems solved by technology

[0003] There are many defects in the traditional technical status assessment method: 1) Information is fragmented, the text, tables, and images in the test report have weak information relevance, and it is difficult to integrate and analyze multiple test reports; 2) The records are not standardized, and the test is too dependent The personal qualities of inspectors can easily lead to ambiguity, omission or deviation of recorded information; 3) The expression is not intuitive, and the spatial position and distribution relationship cannot be intuitively expressed with one-dimensional text or two-dimensional images; 4) The evaluation is not synchronized, and the information is summarized and analyzed The relative record is lagging behind, and the assessment results cannot be generated quickly

[0004] BIM (Building Information Modeling) is based on the relevant information data of construction projects, and simulates the real information of buildings through digital information simulation. Based on the characteristics of BIM technology such as three-dimensional visualization, it can realize the whole life of bridge engineering projects. New cycle management mode. At present, some scholars have applied BIM technology to the operation and maintenance management of bridges, but there is no method that can ensure that the recorded information of the disease meets the specifications, the three-dimensional visualization expression is clear, and the method of automatically generating the technical status evaluation results. To meet the requirements of scientific operation and maintenance management.

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