The first digital revolution was the invention of the computer, which converted the electronic signals generated and processed by the computer into images, words, sounds, data and so on. The digital revolution is marked by the advent of the digital age. The emergence of building Information Modeling (BIM) will trigger the second digital revolution in the field of engineering construction. The physical and functional characteristics of the construction project and facility are digitally expressed throughout the life of the construction project and facility and are collectively referred to as the processes and results of its design, construction and operation. BIM has made great progress and gradually updated the existing technology. Meanwhile, it will also affect the transformation of production organization mode and management mode, and promote the transformation of people's thinking mode.

So what exactly are the benefits of learning BIM for engineers? How do you apply it? What should I pay attention to? What are the pitfalls you must avoid? What are the features? Today, I would like to summarize the most complete information of BIM: five benefits and twelve functions. Five benefits 1, reduce disputes traditionally, architects and owners to discuss the construction design, is a discussion on the design drawings, may lead to communication understanding the blind spot, as for the BIM generated by the 3 d information model, all the parameterized design conditions, formed from different parameter content can be another alternative, architects and owners can be fully discussed, choose the most suitable design proposal, will be the positions of two sides from confrontation to cooperation, communication has become more clear transparent, reduce design scheme in the middle of the opportunity to modify or renewed his conviction.

2, work area across the previous job content is always divided clearly, between architects and civil engineers work content clearly, it is always a stage to discuss again after, can't discuss changes anytime and anywhere, and cohesion of the interface is not easy to separate each other, cause may figure of architects and structure engineers figure is all right, but put together, not up close, it takes a considerable amount of time. But if using the concept of BIM, architects and civil engineers can communicate on the same platform, using the same model, in common language, bi-directional discussed, such work like a team, can achieve good communication, the overlap between the professional cohesion, reduce design content contradictory phenomenon.

3. Integrated and consistent architectural information

Past data content is big, all kinds of floor plan, elevation, structure, etc., are in a different file, to change always amend the file respectively, and after the modification is likely a minor error, should pass calibration check for many times, can ensure the correctness of the drawings, but if the use of building information model, all the information in the same model, if there are any design changes, all information will follow change and automatically change, have all kinds of floor plan, elevation, structure also will move together, instead of one by one to correction, correction time saves a lot of communication, of course, to reduce the possibility of errors and omissions.

4, Information updated in real time with this interface to update information more convenient, supervision unit can directly use the device, or mobile phones, to compare engineering construction according to drawing, if there is not compatible with each other, then immediately mark mark, the message will be spread to the integration of BIM in the interface, a structural engineer to check whether to affect the construction safety, consider whether to change the design, reduced the time of communication, traditionally, the audit error, then ask to take the construction drawing to find structural engineers, and mark on the drawing, but also to discuss whether to modify the design, may also find the architect if necessary, The process is quite trivial, which shows the importance of the platform.

5, Dissolve the dead Angle of metasomatism not clear before using two-dimensional graphics to describe the design, some blind spots will be difficult to communicate and even cause misunderstanding, lead to the construction site and drawings, if the architectural design process on the application of BIM 3 d building information model, the design of three-dimensional space can be clearly stated, reduce communication misunderstanding, and easily perceived conflict in terms of design time section, such as, steel pipeline conflict conflict, try to improve, not discovered problems in the construction, can clarify the responsibility.

Twelve functions

1. Visual display on construction site: Through visual display, each project participant can intuitively understand the design plan and intention, which greatly improves the project management ability and communication efficiency.

2. Three-dimensional site management simulated the overall layout of the site and assisted in optimizing the site plan; Present the spatial structure of the project, identifying and avoiding problems in advance.

3. Found in the process of Revit model to create drawings in different professional in the process of creating a model of the project, will find many drawings, elevation errors, such as component size marking is not clear, detail cannot correspond with the floor plan, etc., these problems in the process of model creation, for consultation in meeting the blue prints.the design, to modify the design.

4. Information management, quality, safety, civilization site management researchers found that the problem such as quality, safety, upload problem through mobile applications to the cloud and PC, BIM system will position, time, quality, safety problem rectification of information such as the associated domain BIM5D model, can real-time query any node or construction period and the component of the construction safety, quality, engineering quality and safety and can automatically generate statistical analysis report.

5. Basement pipeline design in mechanical and electrical system function and the request, on the basis of combining with decorate a design of ceiling height, for the professional model (architecture, structure, hvac, electrical, water supply and drainage, weak current, etc.) to consolidate and deepen the design, at the same time, in the process of pipeline comprehensive follow the pressure pipe have no pressure tube, let big line pipe, pipe string cable construction simply avoid the construction principle, it is difficult for a preliminary comprehensive adjustment of pipelines.

6. Comprehensive design of pipe well pipelines accurately positions the vertical pipe in the pipe well, determines the reserved hole position, avoids rework, arranges the branch pipe in advance, saves materials, is beautiful and practical, and facilitates later maintenance.

7. Formwork engineering and detailed design of support frame three-dimensional creation of wall/column/beam/plate mold matching, reinforcement system and support system, so that scheme planning, technical communication, material processing and other work can be carried out in a three-dimensional visual effect, reducing the difficulty of communication. Finally, the material dosage of formwork, square wood, steel pipe, fastener and other materials is summarized and counted to effectively control the material dosage.

8. Detailed design of masonry Engineering Prearranges, optimizes and refines the layout of standard masonry blocks, non-standard masonry blocks, core columns, horizontal beams, wire boxes and other components, so as to provide technical support for centralized processing and distribution of masonry blocks.

9. Quick extraction of project volume. The model of each construction section is correlated with the construction schedule, so that the construction progress simulation of each construction section can be carried out.

10. Virtual construction management is based on the complete progress control process of BIM "goal setting - simulation optimization - Tracking display - Analysis and adjustment", realizing the visual management of the project, bringing new management ideas to the production staff, and greatly saving the daily schedule management work time.

11. Navisworks video production

The Navisworks platform's progress dynamic demonstration function is used to predict the potential problems of the project through collision inspection, and to show the all-round scenario of the project through 4D schedule arrangement, model object animation, analog equipment installation, etc., so as to adjust the progress plan in real time, provide basis for scheme selection and support for project schedule management.

12. Lumion Video Production Using the real-time 3D visualization function of Lumion video production platform, by importing the BIM model created and the visual module of the software itself, it is convenient to make videos and render static frames quickly and conveniently, so as to conduct dynamic browsing of BIM model, facilitate the discussion of construction scheme and effect inspection.

At present, the foundation and status quo of BIM application have not shown good signs, but the speed of BIM development should not be underestimated. No matter the construction enterprise or other parties involved in the project construction, they should view the development of BIM rationally. The future of BIM is bright, and the road is indeed tortuous. In this process, we will encounter many problems: the integration of software, the inconsistency of BIM standards, and the lack of BIM talents. For the current engineering construction system (each stage is separated for its own interests), the enthusiasm for the application of new technologies in the industry is not good. But the more difficulties encountered, who can overcome, who can adhere to the last, who is the strong. There should be no doubt about the bright future of BIM, who can go ahead, the key is the path of implementation in the middle.