The water conservancy BIM I know

BIM platform includes "ABC": A is Autodesk, B is Bentley, and C is Catia owned by Dassault.

Platform A is the most widely used platform in the era from drawing board to computer-aided two-dimensional drawing. At present, its main BIM products are Civil3D and Revit. The software is highly integrated, has the potential to unify the BIM market, has a wide user base, and is more popular than platforms B and C. Because it is a one-stop idea, the generated files are also larger and more difficult to run. The application of domestic water conservancy industry is represented by Kunming Electric Power Construction Institute.

B platform is rarely heard of. I searched online and found few tutorials. There are as many as 300 softwares advertised in official website. How do users choose? His characteristic is that all software is based on MicroStation platform, and other software is divided by specialty. As a "plug-in" of MicroStation, all files generated by the platform are universal and support incremental storage in the cloud, which makes the operation more dexterous. The application of domestic water conservancy industry is represented by Huadong Institute and Zhongnan Electric Power Construction Institute.

Platform C is widely used in aviation, automobile and machinery manufacturing. Most of the online tutorials are in the automobile industry, but its parameterization and special-shaped parts are really useful. The domestic water conservancy industry is represented by Chengdu Electric Power Construction Company.

At present, the British government has forced the use of BIM platform, and China has also issued six corresponding specifications. In principle, it is not unified, and what is suitable is the best. Kunming Institute, East China Institute and Chengkan Institute have realized three-dimensional design and two-dimensional drawing on different platforms.

Water conservancy projects are divided into two categories according to the site: one is relatively concentrated hub projects (such as reservoir hubs, including dams, spillways, emptying holes, etc.). ); First, long-term projects (such as canals, dikes, water pipelines, etc.). ).

Platform A: Civil3D builds terrain model quickly and accurately, and geological model is not easy to add; Revit component family should be expanded n times in water conservancy industry.

Platform B: After adding the filling symbol on the drawing, if the 3D model is adjusted, the outline of the drawing will move accordingly, but the filling symbol will not move; Parameterization has been available since MicroStation Connect version.

Platform C: The drawing range supported by the software is 10km2, but the coordinate values of the drawing area often reach seven or eight digits, which is not very supportive. If you have to do things with C platform, you must first customize the coordinate system to make the coordinate value as small as possible, and secondly, model it in mm; Terrain modeling needs inverse function to fit mesh surface, and the fitting error is from tens of centimeters to several meters. When plotting, there is no station number labeling function and elevation labeling function, and the vector format cannot be customized for filling symbols.

There are many specialties in the water conservancy industry. According to SL6 19-20 13 "Rules for Compilation of Preliminary Design Report of Water Conservancy and Hydropower Projects", let's see which majors are available: hydrology, engineering geology, engineering task and scale, engineering layout and construction, electromechanical and metal structure, fire protection design, construction organization design, construction land acquisition and resettlement, environmental protection design, soil and water conservation design and labor.

It is almost impossible for so many majors to achieve full linkage on the BIM platform. At present, BIM is still in the development stage, and it is very good to model, plot and calculate the engineering quantity of topography, geology and architecture, which can reduce the error rate and improve efficiency.

Which is stronger in professional collaboration? Personally, Catia is better. Why? The parameters of Catia support almost all sizes, and the driving between upstream and downstream disciplines can be realized by formulas.