BIM and VR system platform to create a virtual city

The BIM model provides virtual reality with a complete and accurate model consistent with the actual project. VR virtual reality is to let people roam in a model environment. BIM & VR technology uses computer graphics to approximate the real three-dimensional expression of the real world. The conversion of the two-dimensional design (construction) plan into an intuitive three-dimensional visual graphic model helps the construction unit, design unit, construction unit and operating unit to communicate on the same platform, clearly express the construction concept, and find the design (construction) plan defects in time , Reduce waste of resources, so as to achieve the maximum risk of construction projects and control project costs in the full life cycle of construction projects. BIM can not only share all the information and data processing and transmission work in the life cycle of the building, but also its three-dimensional visualization characteristics, so that non-professionals can quickly understand the building and read the building. The BIM model can achieve the effect of simulation, but compared with VR, its visual effect is still very different. VR can make up for the shortcomings of visual reality. BIM and VR are mainly a combination of data models and virtual images, and are used to optimize the application of virtual buildings.

The informatization of building models is not a job that can be completed by a software. Different software needs to be used in different stages of engineering construction. For example, Revit2015, Arch2012, Sketchup, Tianzheng Building, Rhino, magicad, Naviswork are used in the engineering design stage In the construction stage, there are software such as Quanlianda calculation, Luban calculation, and Luban PDS. In the operation and maintenance phase, there is ArchiBUS. The above-mentioned software are commonly used BIM software, most of the project BIM landing is based on the application of the above software platform.

The virtual reality of engineering projects can be realized through a variety of software platforms, such as UC-WIN-ROAD, Lumion, Virtools, Quest3d, Converse3D and other application software platforms. The software mentioned above are commonly used VR software, and the virtual reality of engineering projects is mostly based on the above Application of software platform.

VR technology can turn the architectural planning drawings on the two-dimensional drawings into a more spatial model. Decision makers can enter the virtual model arbitrarily, experience the observation works from any angle, from materials, sizes to lighting, and experience the location scene in real life. Space size. Using the engineering model established by BIM technology, combined with VR experience equipment to achieve dynamic roaming, the BIM model has a more realistic experience, and the construction personnel can feel the construction site more intuitively, helping the construction personnel to understand the construction plan and construction process and improve the construction quality. Architectural modeling is becoming more and more peculiar, and the internal design structure is becoming more and more complicated. In the teaching process of engineering disciplines, VR virtual experience technology is used to understand the corresponding methods in architectural design and construction. The principles and construction techniques of such architectural design, Force analysis, the pipeline does not really understand.

Since the unit used for architectural design drawings is the mm system, and the default unit of the virtual reality software UC-WIN-ROAD is the m system, the model needs to be reduced by 0.001 times in Arch2012. Enter scale on the command line, select the entire building as the selection object, and then specify the base point, and enter the specified scale factor of 0.001, you can get the building model in m units.

Connect with Arch2012 platform

Import 3DS format file into UC-WIN-RODA, put all files in the same folder, load 3D model, click 3DS to find 3DS model exported by architectural design software The scale and other parameters are set. After modification and determination, the 3DS format file is successfully imported into UC-WIN-ROAD, and then the model can be configured into the scene, and various simulations can be performed on it.

Connect with revit2015 platform

Import the FDX file into UC-WIN-RODA, and load the FDX scene can change the actual scale size parameter and other parameter settings according to the actual situation. After the modification is determined, the FBX format file is successfully imported into UC-WIN-RODA, Then the model can be configured into the scene, which can be simulated in various scenarios.

Connect with Sketchup8.0 platform

Because Sketchup8.0 software can export 3DS format files, the method of docking with UC-WIN-ROAD platform is the same as Arch2012.

When the building model is successfully imported and configured in the UC-WIN-RODA site, define the flight path settings, after setting a series of parameters, register a script to the building model, save the Road data, the simulation data format is ".rd", and you can Record video of the project, with images.

BIM has changed the traditional construction methods in the way of construction. The birth of VR has brought people different perceptions and interactions. The combination of the two will inevitably enhance the technical level between the mutual fields. The model houses and virtual conversations are just VR and At the beginning of the integration of BIM, BIM and VR system platforms can be used in the future to create virtual cities, create more space for cities, and promote the formation and change of large cities.