What are the applications of bim in the scheme planning stage?

The main purpose of applying BIM technology in the scheme design stage is to verify the indicators put forward in the project planning stage, further refine and optimize the design scheme, make necessary analysis of the site environment where the building project is located by using BIM technology, and apply the design scheme demand selection, building performance analysis and cost estimation based on the model in the scheme design stage of single building, so as to provide reliable data basis for the application of BIM technology and project approval in the preliminary design stage.

The main purpose of site analysis is to establish a site model by using site data acquisition and modeling software or equipment, and provide visual simulation analysis data (such as horizon analysis and intervisibility analysis based on oblique photography model) in the process of site planning and architectural design as the basis for evaluating design schemes.

Analysis of site and planning conditions: The main purpose of site analysis is to establish a site model by using site data collection and modeling software or equipment, and provide visual simulation analysis data (such as horizon analysis and intervisibility analysis based on oblique photography model) in the process of site planning and architectural design as the basis for evaluating design schemes. Creation of scheme design model: The scheme model is mainly based on design conditions, which provides a preliminary solution for the construction project from the aspects of space architecture, creative expression and structural mode, and provides data and guidance for the subsequent preliminary design stage. Simulation analysis of building performance: The simulation analysis of building performance is to simulate and analyze the sunshine, ventilation, acoustics, energy consumption, evacuation, fire protection and structure of the project by using professional performance analysis software, building information model or establishing analysis model in the scheme design stage, so as to improve the performance, quality, safety and rationality of the project. Comparison and selection of design schemes: The comparison and selection of design schemes is to determine the best design scheme. Based on the optimal performance analysis scheme model, the application point forms several alternative design scheme models through creation or local adjustment, and finally forms the optimal design scheme through various modes (visual display and immersive roaming) display and multi-party communication and discussion, providing basic data for the preliminary design stage.

Indicator analysis: the information data of project indicators at this stage mainly refers to technical and economic indicators. Digital application: Digital application of building information model mainly includes BIM+ virtual reality technology (VR), BIM+ mixed reality technology (AR), BIM+ geographic information technology (GIS), 3D laser scanning technology and 3D printing technology.