BIM design-oriented bridge engineering line coordinate calculation method

Abstract

The invention discloses a BIM design-oriented bridge engineering line coordinate calculation method, which comprises the steps of S1, establishing a BIM design model and a system database of a unifiedcoordinate system, and importing BIM design model data into the system database; S2, in the unified coordinate system, on the basis of the general calculation model of the relaxation curve, calculating a center line coordinate by using an algorithm and carrying out chain scission setting; importing model data, and solving center line coordinates of the BIM design model by applying an intersectionpoint method or a line element method; and if link breaking setting is needed, obtaining a pile-by-pile coordinate table calculated by the BIM design model, carrying out sorting, selecting pile numbers needing link breaking, and obtaining coordinate information needing link breaking. and S3, checking a calculation coordinate data result according to the BIM design model, and feeding back and exporting a calculation result. The method is accurate in calculation and high in positioning precision. The problems that measurement coordinate systems between a design department and a construction department are not unified, lofting errors are easy to accumulate, on-site measurement and setting are not flexible, and the automation degree is poor are effectively solved.

Description

technical field [0001] The invention relates to the technical field of bridge line coordinate calculation, in particular to a BIM-oriented design-oriented bridge engineering line coordinate calculation method. Background technique [0002] With the rapid development of my country's economy, the construction of high-speed rail has also shown a very high growth trend. Higher requirements are also put forward for the coordinate measurement accuracy and measurement efficiency of high-speed railway lines. Most of the traditional center line measurement and design methods are based on the geometric relationship of line graphics, which have disadvantages such as inconsistent measurement coordinate system, easy accumulation of stakeout errors, inflexible field measurement and design, and poor automation. The BIM technology allows the design and construction personnel to intuitively and accurately understand the exact coordinates, external shape, internal structure, and required mat...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the existing technology is that most of the traditional center line measurement and design methods are based on the geometric relationship of the line graph, which has the disadvantages of inconsistent measurement coordinate system, easy accumulation of stakeout errors, inflexibility of on-site measurement and design, and poor degree of automation.

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