A Comparative Study on Various Stages of Level of Details in Advanced 3D Building Construction Using BIM Tools

Building Information Modelling is one of the most emerging technologies that provide productivity, efficiency and compliance in the construction industry. There are various platforms on which the 3D buildings can be created with large viewing capabilities. The current paper concentrates not only on the construction of 3D buildings with extrusions but also compares the various levels of details in two different BIM based 3D softwares namely ESRI City Engine and Revit Architecture. A 3D building object can be represented basically with four LOD levels at each stage of the building construction. The focal point of the current study also reflects the creation of building interiors and their corresponding attribute information to each element of the building. In City Engine software developed by ESRI, CGA codes are modified and customized to enhance the advancement in the building construction such as generation of building mass, segments, Roofs, Facade Creation, and other Architectural elements. These basic blocks of the building are produced by using Rule based pseudo codes in City Engine. The study illustrates a sample building and incorporates these codes to generate the 3D Building and the interiors are designed with more detailed components in Revit software. Hence, BIM is a path that provides effective monitoring, coordination and collaboration in construction field.