An OGRE-based BIM information visualization platform is eatablished by transfering the geometry representation of the IFC entity to the triangular net of surface that OGRE can recognize, and by building the connective mechanism between graphic and non-graphic information. This platform can quickly display the 3D-BIM modeling and read the file with the general BIM file format, and can save and manage the information of the 3D modeling, as well as excative interactive query between the graphical information and the non-graphic information.

An integrated CAD / CAM software system of steel industrial plant structures is developed based on the BIM application. The system is composed of two seamlessly integrated modules: structure calculation module and post-process module, the interface between the modules is clear. And, the complexity of the software development is effectively reduced by this design patterns. Using object oriented programming technology, a series of intelligent solid classes are abstracted to describe parts with deferent geometric information, structure properties and design requirements in real structure. Objects which are instances of these hierarchical C++ classes and logical links between them were integrated into the AutoCAD drawing database to construct a three-dimensional model. Several key functions including parametric shortcut modeling, frames analysis and member checking, three-dimensional solid construction, node design and editing, and drawing generation are implemented. IFC interface and the interface with SAP, ETABS and MIDAS are also implemented.

A complete BIM model consists of the models of multiple professions. In the BIM design of the electric- power industry, different professions are designed by using different platforms, and then all professional models are integrated on a public platform. During the process, data form different platforms need to be converted to the public platform. According to the requirements of Shanxi Electric Power Co., Ltd., this paper studies the data exporting from the structure-model to Revit. All information of 3D entities and tower segments is input into Revit through IFC files, achieving the integration of structural model with other professional models. Lastly, the paper also illustrates the limitations and shortages of data exchange using IFC files.

At present, in the bidding process of steel structure enterprises, the communication among the marketing personnel, the designers and the owners is not convenient, which greatly reduces effect of external publicity of steel structure enterprises. Based on BIM, the paper develops a marketing system for steel structure manufacturer companies, which includes the steel design system and the web display platform. The two platforms use the JSON to transform data with each other through the Internet. The marketing system enhances the connection among the marketing personnels, the designers and the owners, and is able to display the models to owners more intuitively than ever, which increases the communication efficiency and improves the propaganda effect.