Research On Parametric Component Generation Plug-in For Assembly Type Concrete Building

In recent years,it is imperative to change the traditional construction methods and explore a new path of building industrialization under the background of the gradual development of the concept of green,environmental protection and sustainable development.As one of the effective ways to realize the construction industrialization,the assembled concrete building has become the development trend of the whole construction industry.The introduction of BIM technology in the deepening design of assembly buildings solves the design problems of building components with different sizes and specifications through parametric models,improves the design efficiency of assembly concrete buildings,and promotes the development of the prefabricated concrete construction industry.This paper developed a set of plug-ins to generate assembly concrete parameterized components based on NURBS three-dimensional software Rhino,and realized the deep parameterized design of assembly concrete building components.First of all,through the research and analysis of Rhino software and secondary development environment,it was determined that both C# and VB.net languages were compatible with each other as the development language.The cross-platform RhinoCommon was used as the SDK(software development kit)of this plug-in,compare and choose common design patterns,select the factory pattern as the design pattern for the development artifact to generate the plug-in.Secondly component library was established according to the mission objectives to concrete design of software function,modularize functions,let each module do its job,and the component in the component library file formats were defined.The component parameter could write and read in the Rhino model file,this plug-in as a host platform plug-in interface rules were defined,and the prefabricated concrete prefabricated components parameterized management platform was developed.Finally,the generation of parametric model of fabricated concrete foundation components were realized according to the requirements of the national design specifications,such as the precast truss reinforced concrete composite plate,precast reinforced concrete beams,precast concrete shear wall,precast reinforced concrete balcony,precast concrete staircase and so on.