What does BIM technology system include?

BIM model maintenance refers to establishing and maintaining the BIM model according to the project construction progress, using the BIM platform to summarize all the construction information of each project team, eliminating the information islands in the project, and organizing and storing the obtained information in combination with the three-dimensional model, so that all stakeholders of the whole project can enjoy it at any time. At present, the industry mainly adopts the method of "distributed" BIM model to establish a BIM model that meets the existing conditions and purposes of the project. These models can be roughly divided into: design model, construction model, schedule model, cost model, manufacturing model, operation model and so on.

2. Field analysis

Traditional field analysis has some shortcomings, such as insufficient quantitative analysis, too many subjective factors, and inability to process a large amount of data and information. Modeling the spatial data of the site and the proposed building by BIM combined with geographic information system (GIS) can quickly obtain more accurate analysis results, help the project to evaluate the use conditions and characteristics of the site in the planning stage, and thus make ideal key decisions for the new project, such as site planning, traffic streamline organization and building layout.

3. Architectural planning

Through the logical and mathematical analysis of the social environment and related factors where the construction goal is located, this paper studies the reasonable positioning of the design in the project task book, formulates and demonstrates the basis of architectural design, scientifically determines the content of design, and looks for scientific methods to achieve this goal. BIM can help the project team understand the standards and regulations of complex space through multi-space analysis, thus saving time and providing more value-added activities for the team. In particular, customers can make key decisions with the help of BIM and relevant analysis data when discussing requirements, selecting and analyzing the best scheme.

4. Scheme demonstration

Project investors can use BIM to evaluate the layout, vision, lighting, safety, ergonomics, acoustics, texture, color and compliance of the design scheme. BIM can even scrutinize the local details of the building and quickly analyze the problems that may need to be dealt with in design and construction. BIM can also be used to provide convenient and low-cost options for project investors. Through data comparison and simulation analysis, the advantages and disadvantages of different schemes are found out to help project investors quickly evaluate the cost and time of construction investment schemes.

5. Visual design

For designers, a lot of design work is not only used for preliminary scrutiny and stage presentation, but also based on the traditional CAD platform, using three views of plan, elevation and section to show their design results. The appearance of BIM allows designers not only to have three-dimensional visual design tools, what you see is what you get, but more importantly, through the improvement of tools, designers can use three-dimensional thinking to complete architectural design, and at the same time, owners and end users can really get rid of the restrictions of technical barriers and know what they can get from their investment at any time.

6. Collaborative design

Collaborative design is a new architectural design method, which enables designers of different professions in different geographical locations to carry out design work through network collaboration. The existing collaborative design is mainly based on CAD platform, and the general file format of CAD is only a description of graphics, so it is impossible to load additional information. BIM makes collaboration no longer a simple document reference, and BIM technology provides the underlying support for collaborative design, which greatly improves the technical content of collaborative design. With the technical advantages of BIM, the scope of cooperation has also expanded from the simple design stage to the whole life cycle of the building, which requires the collective participation of all parties such as planning, design, construction and operation, so it has a broader significance and brings about a substantial increase in comprehensive benefits.

7. Technical performance analysis

Using BIM technology, the virtual building model created in the design process already contains a lot of design information (geometric information, material properties, component properties and so on). ). As long as the model is imported into the relevant performance analysis software, the corresponding analysis results can be obtained. In the past, professionals spent a lot of time inputting a lot of professional data, which can be completed automatically through BIM technology, greatly shortening the cycle of performance analysis and improving the design quality.

8. Quantitative statistics

BIM is a database with rich engineering information, which can truly provide the engineering quantity information needed for cost management. With this information, the computer can quickly carry out statistical analysis of various components, greatly reducing the tedious manual operation and potential errors, and it is very easy to realize the complete consistency between the engineering quantity information and the design scheme.

9. Pipeline synthesis

With the increase of the building scale and the complexity of the use function, the demand for the integration of electromechanical pipelines is becoming stronger and stronger for design enterprises, construction enterprises and even owners. By using BIM technology and establishing BIM models of various disciplines, designers can easily find the collision and conflict in the design in the virtual three-dimensional environment, thus greatly improving the comprehensive design ability and work efficiency of pipelines. This can not only eliminate the possible collisions and conflicts in the project construction in time, but also significantly reduce the resulting change application form, greatly improve the production efficiency of the construction site, and reduce the cost increase and construction delay caused by construction coordination.

10. Construction progress simulation

By linking BIM with construction progress, spatial information and time information are integrated into a visual 4D(3D+Time) model, which can directly and accurately reflect the whole construction process. 4D construction simulation technology can make a reasonable construction plan, accurately grasp the construction progress, optimize the utilization of construction resources, scientifically arrange the site, and uniformly manage and control the construction progress, resources and quality of the whole project, so as to shorten the construction period, reduce the cost and improve the quality.

1 1. Construction organization simulation

BIM can simulate the constructability of key or difficult parts of the project, and analyze and optimize the construction and installation scheme by month, day and time. Simulate and analyze some important construction links or key parts with new construction technology, construction site layout and other construction guidance measures to improve the feasibility of the scheme; BIM technology can also be combined with the construction organization plan to preview and improve the manufacturability of complex building systems.

12. Digital architecture

BIM model is directly applied to the manufacturing process, and many components in the building can be processed in different places and then transported to the construction site for assembly into buildings (such as doors and windows, precast concrete structures and steel structures). Through digital construction, the prefabrication of building components can be completed automatically. These components manufactured by factory precision machinery technology not only reduce the construction error, but also greatly improve the productivity of component manufacturing, making the construction period of the whole building shorter and easier to control.

13. Building system analysis

BIM is combined with professional building system analysis software to avoid repeated modeling and system parameter collection. It can verify whether the building is built according to specific design regulations and sustainable standards. Through these analysis and simulation, we can finally determine and modify the system parameters and even the system transformation scheme to improve the performance of the whole building.

14. Asset management

Due to the separation of construction and operation information, these asset information needs to be entered through a large number of manual operations at the initial stage of operation, and it is easy to make data entry errors. A large amount of building information contained in BIM can be successfully imported into asset management system, which greatly reduces the time and manpower input for system initialization data preparation. Because the traditional asset management system itself can't locate assets accurately, the asset tag chip combined with BIM and RFID can also make the location and related parameter information of assets in the building clear at a glance.

15. Disaster emergency simulation

Using BIM and the corresponding disaster analysis and simulation software, we can simulate the process of disasters before they occur, analyze the causes of disasters, formulate disaster avoidance measures, and formulate emergency plans for evacuation and rescue support after disasters.

16. delivered model

Through the correlation between BIM and the recorded information of the construction process, even the completion information including the concealed engineering data can be integrated, which not only brings convenience to the subsequent property management, but also provides effective historical information for the owner and the project team in the future renovation, reconstruction and expansion process.