BIM is the abbreviation of building information model, which is a building model based on the relevant information data of construction projects, and simulates the real information of buildings through digital information simulation. This is a comprehensive process based on design, construction, operation coordination and project information.

By using BIM, construction companies can innovate, design and draw a project with unified information in the whole process, and can communicate better through authenticity simulation and architectural visualization, so that all parties in the project can understand the basic information of the project, such as construction period, real-time situation on site, cost and environmental impact.

The essence of building information model (BIM) application is that these data can run through the whole life cycle of the project and play a continuous role in the construction and later operation management of the project. BIM model refers to building information modeling, which is a data tool applied to engineering design and construction management.

Greatly improve the use efficiency and social and economic benefits of manpower, materials and equipment, enable engineers and technicians to correctly understand and respond to all kinds of building information efficiently, provide the basis for collaborative work for design teams and all parties including building operation units, and play an important role in improving production efficiency, saving costs and shortening construction period.

Limitations of BIM:

1. High investment: The high investment in BIM application software, hardware and personnel training may become a major obstacle for enterprises to implement BIM.

2. Learning difficulty: The operation and understanding of BIM are very strict, and learning is difficult. Enterprises often face resistance from employees to accept new technologies.

3, traditional engineers resist: BIM that changes the traditional working methods, many traditional engineers resist accepting, but there is a lack of new technology recipients inside.

4. Lack of relevant professionals: BIM-related talents are also quite scarce, and it is difficult to find talents who are proficient in new technologies.