The application of foundation pit 5D monitoring and 3D geological model technology based on BIM increased the work efficiency and reduced the man-made omission effectively of safety monitoring during the process of foundation pit construction depending on the visual method. At the same time, in this project, the application of new demonstrating technologies and mobile media equipment such as 3D GIS, 3D laser scanning, 3D printing, AR, VR, Google Glass and so on made the safety monitoring during the process of foundation pit construction operated by project managers, supervisors, monitors more effective. The extended application of BIM technology on the foundation pit safety monitoring of the Poly Plaza explored a new method about foundation pit safety monitoring, and it also provided a useful reference on the application of BIM technology during the whole process of construction of foundation pit engineering.

BIM(Building information modeling) in the AE industry, which is a collaborative work platform based on unique database, a new work method and a new management way of project construction, can improve work efficiency in every stage of AE industry greatly. BIM will be widely adopted because of its great potential, and will lead the construction industry to a new era-the era of building information. However, in AE companies, BIM has been hampered by some problems in its application: do not know how to use BIM to make the design process more effective, how to manage the whole design process if use BIM, more specifically, there is no clear and practical BIM design workflow and method. In this paper, we use the BIM software Revit to carry out the real building structure design process, and discuss the specific BIM based design workflow. First, it shows the whole design process from the establishment of the model to the structural analysis. Finally, this paper summarizes the existing problems in the whole design process, and obtains a BIM based structure design method, at the same time, the problems encountered in the design process are discussed, and some possible solutions and suggestions are put forward.

During the repairing, rebuilding and extension process of the Yufo temple in Shanghai, BIM technologies, combined with 3D laser scanning and 3D GIS digital city technologies are adopted to ensure the practicability of the project in every phase and keep the close link and feedback mechanism among disciplines. In this project, great efforts are made to use BIM technology to provide precise visible models for every discipline during the building design phase, extend BIM technology to all the phases of the building lifecycle (construction, facility manage and maintenance), and create a integrated information model on the same platform. It is an innovative attempt on the application of BIM technology on historic building repairing, rebuilding and extension, combined with 3D laser scanning and 3D GIS digital city technologies.

The BIM concept was proposed more than 40 years ago, and BIM technologies have been applied for more than ten years, BIM1 technologies are already applied extensively in every stage of engineering construction, and in design stage, BIM application have been perfected. From the nation to the local, all the construction management departments are making or have already released related BIM standards, as the specific implementors of BIM, the enterprises have to make a set of BIM standards which are compatible with the industry standard and are operational.
This thesis tries to establish BIM standards of enterprise-class, clear the basic principles structure engineers should follow when they are doing structure design using BIM technologies, and unified the process of structure design, so as to improve design quality and management levels. By studying and summarizing the features of BIM technologies, this thesis establislies BIM standards on structure design, clear tlie work process of BIM structure design. discuss how to use BIM technologies, advanced BIM applications and so on to enhance the design process standardization and quality control, to make the design more efficient, and promoting the practical production of structure design based BIM.