A railway tied-arch bridge construction simulation system and method based on a 3D GIS and a BIM technology

Abstract

The invention discloses a railway tied arch bridge construction simulation system based on a 3D GIS and a BIM technology. The railway tied arch bridge construction simulation system comprises a BIM model conversion module, a 3D GIS data integration module, a view control module, a data import and export module, an object adding module, a measurement query module, a virtual construction tool moduleand a demonstration tool module. The invention further discloses a simulation method using the system. a virtual scene can be constructed in a 3D GIS system, topography and geomorphology and safety risk information of a construction site can be inquired, process technology virtual simulation in the construction process is carried out, existing problems are found in time, the communication efficiency is improved, and the construction organization and safety management quality of the railway tied-arch bridge can be remarkably improved. According to the method, on the premise that railway BIM design and 3D GIS construction management informatization system construction are carried out, survey data and BIM design results can be effectively utilized, integration with an informatization systemis achieved, and the difficulty and cost of construction simulation are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of railway bridge construction simulation technology, and in particular relates to a construction simulation system and method for railway tie-bar arch bridges based on 3DGIS and BIM technology. technical background: [0002] Tied arch bridge is a beam-arch composite system bridge. Because of its superior structural performance, large spanning capacity, flexible structural system, and small construction interference to traffic, it is mainly used for small-angle oblique crossing of railways across urban main roads, expressways, etc. . Its biggest feature and difficulty is that the construction site environment is complex and changeable, the safety risk is high, and the construction organization is difficult. [0003] However, in the current construction process of the tied arch bridge, referring to the construction plan in the form of two-dimensional drawings and documents cannot directly display the bridge ...

AI Technical Summary

Problems solved by technology

Its biggest feature and difficulty is that the construction site environment is complex and changeable, the safety risk is high, and the construction organization is difficult

[0003] However, in the current construction process of the tied arch bridge, referring to the construction plan in the form of two-dimensional drawings and documents cannot directly display the bridge construction process, and it is difficult to provide detailed information on the site environment and design conditions, construction organization conditions, and construction difficulties to all parties involved in the project. Explanations and explanations reduce the communication efficiency, affect the progress of the project, and fail to discover construction safety hazards in time

[0004] The research and application of Railway Building Information Modeling (Building Information Modeling, BIM) technology at the current stage mainly solves problems such as 3D design, collaborative management, and digital processing. Limitations, high cost and difficulty in the application of railway bridge construction simulation

[0005] Bridge construction simulation based on 3D modeling and film and television animation technology is currently the main method used. However, due to the low participation of engineering personnel, low reusability of results, high cost, and inability to integrate with information systems, it cannot be used in the current railway life cycle. And under the general trend of information management, the practicability is not high

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