Perhaps it can be simply stated in one sentence that BIM is building informatization;
Or it can be said: BIM design is an information means of architectural creation;
Recently, my boss asked me to learn the new industry technology BIM. To be honest, I'm at a loss, too. I don't know what BIM is, what it is used for, how to use it, what it can bring, and what it has to do with us ... It took me a few days to get to know it in depth before I found that I had many misunderstandings. I wrote these on the website of the cost engineer and studied with you:
1, BIM is 3D modeling.
Many enterprises have been fooled by BIM, but they just built beautiful and good models, but they don't know how to use them after they have built them. The modeling cost is very high, and the actual value of BIM cannot be exerted, which is very harmful to the application of BIM.
2.BIM is Revit software.
Some people think: "BIM is Revit software, or BIM is Achicad software, or BIM is parametric design." In fact, many foreign BIM stand-alone software are part of BIM software, but they are not indispensable. BIM software is the integration of a series of computer programs from different software vendors at home and abroad.
3.BIM is a single major.
As an industry, BIM itself is a whole life cycle and a multi-disciplinary collaboration, which needs many means to ensure. BIM server, or platform, can integrate information and manage it, so as to get through the profession.
4.BIM is a collision checking tool.
Some people say: "The function of BIM is mainly to check the pipeline collision in the complex bottom space, which successfully solves the cross-collision problem of the pipeline network before the implementation of the construction site and wins a lot of valuable effective space for the project." In fact, the automatic collision checking tool is indeed a part of the BIM tool, but it is only a small part, not even the core module of the BIM concept.
For some projects that only apply collision detection technology, the concept of BIM is not really applied, but because it can realize instant perspective in design optimization and directly detect the inevitable defects in ordinary design process, which just adapts to people's psychology of "seeing is believing", so it is widely spread and even "takes the main job".
5.BIM costs a lot of money
BIM projects with strong publicity are all benchmarking projects with large investment and long time, but it does not mean that all BIM projects are tall, and BIM can be realized with less investment.
6.BIM is nD(n dimension)
Some people think that BIM is nD is a very rash view. It is appropriate to say that BIM is a structured database with six dimensions. Just because BIM is a structured database with six dimensions, it is of revolutionary value to the industry. These six dimensions are: 3D space, 1D time and 2DWBS (contract WBS, construction WBS). 6D's statement is more scientific.
7.BIM is difficult to master.
BIM is really difficult to master, but it is only relative to 2D design software such as AutoCAD. The difference between BIM design and 2D design is that every link and step in BIM is "law-abiding" and "law-abiding". It takes more time and energy to master these rules, but it doesn't require advanced application skills or a deep computer foundation.
8.BIM can be mastered quickly.
It is easy to feel frustrated or even give up halfway in the process of learning and implementing BIM. BIM software vendors and similar "three-day crash course" tutorials may give beginners a misunderstanding that BIM technology can be mastered in a week or two. In fact, it takes months rather than weeks to master BIM, and a BIM environment is needed.
9. Team A is all done.
This is also an important misunderstanding of BIM understanding and application by domestic enterprises. Enterprises must organize BIM teams to engage in BIM, but it is obviously not enough for such a large enterprise to rely on only one BIM team in the face of countless projects. It is necessary for enterprises to make unified adjustment based on BIM from top to bottom, realize the good penetration of BIM from management to application, and implement BIM application in practical projects, so as to improve the BIM application level of enterprises and enhance their competitiveness.
10, BIM extends the design cycle.
Some people think: "designers need to extend the design cycle when applying BIM software." In fact, the application of BIM design process can shorten the design cycle, and the key is to increase the investment of early professionals. BIM is a team work, and its collaborative mode can realize real group design. A project can invest enough manpower to implement synchronous work, thus achieving high efficiency and high speed. For individual designers, the "pseudo-BIM" that wants to realize personal functions through a certain software will indeed extend the design cycle by adding unnecessary processes.
1 1, using BIM is most afraid of design modification.
Some people worry: "The construction plan of the construction party is always dynamically adjusted in real time, and the design institute uses BIM method, and every modification is a disastrous storm of drawing change." In fact, the key working principle of BIM is to use a unique model to "model" in the whole process from planning scheme to construction drawing design to operation stage. Its most basic feature is continuous "growth", and the most suitable is modification. The difference is that the information model of virtual reality is modified here, not the drawings. Due to the high degree of automation of "drawing" in BIM design process, various modifications have become the norm in the design process, and the updating of drawings is effortless. Using BIM design, the work team only needs to pay attention to the design itself, and the drawings, as the end products, automatically change with the design.
12.BIM is imported and not suitable for China's national conditions.
Some people say: "BIM is a good thing, but it originated in the west and adapted to western architectural culture. The architectural culture with China characteristics, even the design specifications and drawing specifications of China, are all obstacles it needs to face. " In fact, BIM is a change that the owners of development enterprises must like and the department managers love and fear. BIM presents all technical details in a visual way, and reports all building materials in real time with an accurate list unmatched by budget technology. It breaks down professional barriers, makes engineering information highly transparent, and makes the "grey zone" beloved by department managers fully sunny. Technical differences are easy to overcome, and psychology is the biggest barrier.
13. Only high-tech and difficult buildings are suitable for BIM application.
Some people lamented: "BIM belongs to the exclusive design of high-tech and difficult buildings, which can't be used in ordinary buildings." In fact, simple, efficient, intuitive and transparent BIM is suitable for all buildings. BIM can make complex buildings simple, and it can also make simple buildings simpler. It is especially suitable for the establishment of standardized parts of shaped products. BIM visualization concretizes the hidden problems in the process of building formation, which can not only help decision makers intuitively read building information to make decisions, but also help professionals find and solve problems in time.
14, BIM is a single technology, not a business process.
Some people say that to achieve a competitive BIM vision, it is only necessary to ensure that everyone and every organization can quickly obtain the detailed information needed to promote effective cooperation at every stage of the design, construction and operation life cycle. BIM is a business process, not a single technology. The biggest misunderstanding of BIM implementation in enterprises is the understanding of its essence. BIM is not only related to three-dimensional data, but also means creating a whole information resource including two-dimensional data source documents, spreadsheets and so on.
If appropriate workflows and processes are defined, BIM can help organizations improve the quality of architectural design, reduce costs, and realize collaborative workflows that help promote real innovation. If every organization in the supply chain adopts a single data model with the lowest common standard, BIM cannot be perfectly realized.
15, two extremes, BIM is just modeling and BIM is omnipotent.
For a long time, there are two kinds of voices circulating in the application of BIM in China. One is that BIM is modeling, and the other is that BIM is omnipotent, but neither is desirable. It is a narrow understanding of BIM to equate BIM with modeling, but it is obviously too radical to think that BIM is omnipotent. "Different from the previous' wall chart' revolution, the revolution brought by BIM not only happened in the design industry, but ran through the whole life cycle of the whole project."
Liu Desheng, president of Bentley Greater China, said that BIM is a three-dimensional collaborative design, including design, construction, operation, management and maintenance. For the owners and designers, it will greatly reduce the cost and improve the efficiency and quality of the whole project operation. There is no doubt that BIM does have its advantages, but it is unrealistic to say that it is omnipotent. After all, BIM is a tool anyway, and it can't replace designers, project managers, budgeters and constructors.
16, BIM is a design-oriented scheme, and construction companies using the same three-dimensional tools must be selected to cooperate and create a single project information source.
This is a misunderstanding spread throughout the BIM industry in China, whether it is the assumption about the use of three-dimensional tools or the assumption of a single data source. Industry experts believe that a single data model is not only expensive, difficult to realize, but also not applicable. Organizations that have tried this model will soon find that a single model can easily fall into many uncontrollable data islands, because many disciplines involved need information union.
Experts also pointed out that real BIM refers to information enjoyment driven by information mobility (throughout the entire engineering field and infrastructure life cycle). It enables contractors, owners and operators to access key design data, which can be used to improve the efficiency of construction and operation processes. In addition, BIM is not limited to three-dimensional data, and two-dimensional data is still very important, because the information in databases such as documents and spreadsheets is part of the whole BIM method.
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