Research And Application Of Parameterization Of 3D Model Of Hydraulic Engineering

With the development of BIM Technology,the demand for BIM Technology of water conservancy design unit,consulting unit and construction unit is becoming more and more urgent.So what is BIM Technology and what does BIM Technology do? BIM is building information modeling,b-we can understand it as building,I we can understand it as information,m we can understand it as model.BIM is based on the three-dimensional digital technology,with the model as the carrier,and has a variety of engineering information in the model.It is a digital expression of engineering characteristics and actual engineering projects.Up to now,there are no technical problems in the B and M phases of BIM Technology,that is,3D modeling,while the application of I phase,that is,model information,is difficult to proceed smoothly.The main reason is the parameterization of the model.Based on BIM Technology,aiming at 3D model,this paper uses C ?? language and Microsoft Visual Studio 2017(or other versions)to redevelop Revit software,and makes parametric research on 3D model of water conservancy project created by Revit,mainly including:(1)Inductive parameters: study all kinds of information needed in the life cycle of water conservancy project construction,summarize these information into parameters that can be loaded into the three-dimensional model,and sort out and code the parameters.(2)Add parameters: add parameters to the model,study how to add parameters scientifically and reasonably in the modeling process,such as: mechanical parameters of materials,engineering geological parameters,etc.,and verify the visual interaction between parameters and the model.(3)Reading parameters: Based on the three-dimensional model of water conservancy project,the second development of Revit is carried out with the computer programming language(C ??),and the second development of Revit is carried out.Taking the calculation of energy dissipation and scour prevention downstream of sluice as an example,the paper explains how to read the model parameter information and use the model parameter information.(4)Parameter application: practical engineering application analysis,extraction of model parameter information,generation of two-dimensional CAD drawings,application of sluice parametric design interface,visual interactive design of an open sluice station.In order to verify the reliability of the parameters,the calculation results generated by the system are compared with the results of the previous design of the open sluice station.