Think of BIM as a "database" and traditional drawings as "documents". For the database, you can develop programs to add, delete, check and modify it, while for the document, you can only read it. For example, automatic collision detection based on BIM model is actually to find "geometric data" from the database and then calculate the collision result. Based on traditional drawings, you can only look for collisions with the naked eye because the information computer on the drawings doesn't know at all. With this database, you can develop programs to do many imaginative things.
General non-BIM software also uses database to manage data, and it can also be added, deleted, viewed and modified. What are the advantages of BIM? BIM is not only a database, but also a centralized database. All the information is put in this database, and other professionals and people at other stages (provided they have permission) can add, delete, check and modify it. This is often called information exchange. This means that if you complete the design, the design results can be directly imported into the cost calculation software to automatically get the project cost without repeated modeling. On the one hand, it improves efficiency, on the other hand, it ensures the consistency of information. The former is easy to understand, the latter means that if your design results change, the project cost can also change automatically, and the calculated cost corresponds to the design results.
Owners are the biggest beneficiaries of BIM. The benefits of BIM are comprehensive, including cost, quality, construction period and so on. Let's start with the simplest engineering change. Professor skibnewski of the University of Maryland (editor-in-chief of Automationinconstruction magazine, the most NB periodical in BIM field) has counted more than 20 BIM projects in the United States, and the engineering change cost has dropped from 10% of the total project cost to about 3%. The change cost of domestic engineering projects accounts for 65,438+00-65,438+03% of the total project cost. The BIM technology used in Shanghai Center has been reduced to 4-5%. You can calculate how much money has been saved.
Of course, BIM technology will bring many other benefits, such as project quality, construction period, post-operation and maintenance, etc. These are more difficult to quantify, so I won't say it.
People: those who know BIM don't know the major, and those who know the major don't know BIM. Frankly speaking, the quality of employees in BIM industry is still low.
Very promising. Look at what Wanda is doing. At the annual meeting, Wang Jianlin emphasized the promotion of BIM technology, and invested 200 million yuan a year to develop BIM platform and establish BIM standards. All members of the group regularly conduct BIM training and assessment (it is said that the examination is still very strict), and spend an annual salary of one million to dig people in the industry; Each system (cost, engineering, procurement, etc.) has a BIM supervisor. ) group.
But it should be pointed out that BIM itself is just a tool, not a panacea. Wanda is pushing BIM so hard on the premise that it cooperates with Wanda's turnkey model and light asset model, and BIM is only a tool to serve these two models.
Internet and big data. There is too much to say here, you need to experience it yourself.