Self-understanding of BIM
To some extent, BIM can be regarded as a critical point or a transitional stage in the process of digitalization and informatization of the construction industry after entering the 2 1 century. When we need a statement to mark such a stage, BIM is the most familiar and dominant statement among many statements. In fact, the connotation and extension of BIM have long gone beyond the scope of the model, and also extended to the construction industry, and even extended to the entire engineering industry.
From the essence of information application, the purpose of BIM application is to make implicit architectural information (design, etc.) explicit. From the perspective of the development of the times, what BIM should do is to transform the design delivery means based on 2D drawings into 3D models.
I personally understand that BIM should not only define some contents of pure data, but also include the contents of human behavior. Simply put, it should include a collaborative work model. This collaborative work model is a rule that defines how construction practitioners work together under the same data model.
This traditional way of working has two characteristics: first, the relationship between people is complex and inefficient; Second, without a unified data model, everyone creates a set of data, which will easily lead to design errors, data redundancy, and it is difficult for people to cooperate. The picture on the right is an ideal BIM working mode: one is a unified building model, and the other is that all relevant personnel deal with the building model under a defined rule.
What exactly is BIM?
The following text comes from a blog of Mr. He Guanpei, a senior consultant of BIM, and talks about what BIM is in Mr. He's popular, humorous and profound language:
Today, it seems that most people in this industry know what BIM is, is it not building information modeling or building information modeling? You're right.
The definition of BIM is available online, and it can be found by looking up BIM, building information modeling or building information model. Wikipedia and Baidu Encyclopedia have everything, but both have a common feature, one word, Xuan. Three words, quite mysterious. The more you look, the less you know what this thing can do for you. Perhaps the only thing that is easy to understand is using new software, such as Autodesk Revit, Bentley Architecture, Graphics of Archived and Digital Project.
Then someone used it, and then everyone stopped using it. The reason is simple, it seems not as fast as AutoCAD.
However, BIM did not quit the historical stage, but became more and more lively. In the birthplace of the United States, it is very lively, and even the national BIM standards in the United States have been done. Moreover, like all the good and bad things of Uncle Sam, he will rush out of the United States and go to the world.
Hong Kong has always been the trend vane in Asia, and BIM is no exception. In recent years, more than 100 projects have used BIM, which can be described in one sentence: out of control.
Hong Kong is a region with one country, two systems. The biggest feature is that the owners there are definitely unprofitable. Therefore, BIM must have brought benefits to Hong Kong owners.
BIM may really be a good thing! From this point of view, it seems that people in this industry in China have not fully understood this matter, but one thing is that they have tried and feel that BIM is not simply a change of software.
BIM is in China.
BIM developed from the United States and gradually spread to developed countries such as Europe, America, Japan and Singapore. After 2002, China gradually began to contact with the concept and technology of BIM. This paper first introduces the development status of foreign BIM, then lists some key problems existing in the development of domestic BIM, and finally expounds the good mentality of domestic BIM development and construction industry practitioners.
Present situation of building information management at home and abroad
This paper mainly introduces the development of BIM in the United States. The development trend and application level of BIM in Japan, Singapore and Hong Kong are very good, but there is still a certain gap with the application level of BIM in the United States. So here is a brief introduction to BIM in the United States. Knowing the BIM situation in the United States, we can set the catch-up goal of our BIM development at this stage, learn the advanced experience and lessons of its BIM implementation, avoid detours and learn from others.
Development of BIM in America
The United States began to study the development of building informatization a long time ago, and BIM was first proposed by Autodesk Company of the United States in 2002. Today, BIM has been applied to most construction projects in the United States, and there are various BIM applications, such as space verification, facility management and so on. And under the guidance and promotion of the government, various BIM associations and BIM standards have been formed (Americans are very good at this, there are associations that can protect the interests of the industry, and there are regulations that everyone can do). We will not discuss many BIM cases in the United States here, but focus on the operational strategy of the US Internal Affairs Administration (GSA) in BIM application and promotion.