In the design and modeling process of air duct system, due to the large number of pipes and the rich types of pipe fittings, it is easy to cause problems such as low modeling efficiency and repetitive work, and an intelligent algorithm for automatically generating the BIM model of air duct system is proposed to solve the above problems; this algorithm is based on the Revit secondary development program interface and LibreDWG third-party class library, uses the C # object-oriented programming language, automatically identifies the duct information on the CAD layer by calling the relevant functions, and automatically generates the BIM model of the duct through the algorithm calculation and processing, thus realizing intelligent modeling. It is verified that the algorithm can extract various parameters of the duct model, accurately locate the duct coordinates, and automatically generate duct connectors at the intersection of the ducts, effectively improving the efficiency of the designers in modeling.
At present, BIM is increasingly mature in the design and construction stage of engineering projects in China. However, the application of BIM model in FM operation and maintenance stage has not been well popularized and developed. Based on the general situation of Baishan Wanda's reconstruction project and the experience of operation and maintenance management of BIM+FM comprehensive application, this project builds a "BIM+FM" intelligent operation and maintenance management system as the core. Through the CAD drawings of Baishan Wanda Plaza, modeling was carried out by using Revit software, and the model was checked and optimized for collision, which was imported into FM system for operation and maintenance management to achieve standardized, refined management, to improve management efficiency and to reduce the costs of labor and operation management.
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