BIM software plays a crucial role in implementing Building Information Modeling (BIM). According to incomplete statistics, there are over 70 types of BIM software internationally, with around 20 to 30 commonly used in China. But which ones are the most popular? Today, we will explore the commonly used BIM modeling software and provide an introduction to these essential tools.
1. Revit
Revit is distinguished by its relational model that connects all components, views, and annotations. This ensures that any changes made to components are automatically reflected throughout the model, maintaining consistency. For example, when a wall is moved, adjacent walls, floors, and roofs adjust accordingly, position and size annotations update, room area reports recalculate, and related sections redraw automatically. This bidirectional association between components, views, and annotations is Revit’s most notable feature.
Revit supports team collaboration through a “central file” system, which acts as a shared database accessible by multiple users simultaneously. Each user works on a “local file,” with editing rights managed by the working set to prevent conflicts. Revit also simulates traditional 2D drafting environments by providing tools such as drawings, symbols, tables, and legends, bridging the gap between old and new workflows.
However, Revit has limitations in 3D modeling, such as the inability to create arbitrary oblique sections or unfolded views. Complex intelligent components and thin molds can significantly impact performance.
The Revit MEP module offers modeling tools for mechanical, electrical, and plumbing systems, including 3D pipelines and equipment for power distribution, lighting, HVAC, water supply, drainage, fire alarm, fire protection, and monitoring systems. It also provides design tools like air volume calculation. The Revit Structure module supports structural modeling with components distinct from building columns, allowing for both building and structural models. These models can serve as references for structural analysis, enabling independent structural BIM models.
2. Tekla
Tekla, founded in Finland in 1966, developed Tekla Structures from its original software named XSTEEL. It offers structural engineers advanced detailing capabilities for concrete and steel structures. Tekla excels in construction detailing, especially for steel structures, and is widely used in the industry. It can also integrate with control systems for steel bending machines and precast concrete production.
Tekla models can include non-geometric information essential for structural analysis, such as loads, load combinations, and support conditions. However, most BIM software, including Tekla, does not fully support structural analysis, which is still carried out using traditional analysis and design programs. Although Tekla can generate input files for analysis software like SAP2000, STAAD PRO, and MIDAS, this functionality is currently limited to beam and column systems and has not extended to plate and wall structures.
Tekla BIMSight, a free software launched in early 2011, allows users to view multiple BIM models in IFC format for clash detection, inspection, review, annotation, and redlining during design and construction phases.
3. Autodesk Navisworks
BIM design software varies across disciplines, producing different file formats. Navisworks can import most BIM software formats currently available, serving as a platform for integration, browsing, and review. It also offers advanced features such as clash detection and 4D construction progress simulation.
Navisworks provides a 3D space experience of BIM designs, allowing designers to freely annotate, measure dimensions, and enable owners to leave review comments and track changes. Despite this, many property owners, especially in Taiwan, are still unfamiliar with using BIM for design review and space verification, which could otherwise reduce the frequency of design changes during construction.
4. Autodesk Ecotect Analysis
Orienting buildings north-south is a traditional wisdom that has endured for centuries. Autodesk Ecotect Analysis brings this wisdom into the digital era by providing building physics simulation and energy analysis. As a tool for evaluating building design efficiency, Ecotect supports specific BIM model formats, taking into account geographical conditions, physical properties, and materials.
Users can simulate solar radiation, heat transfer, lighting, acoustics, and energy consumption, with results presented visually. Although not as precise as some specialized analysis software, and with limited compatibility with Taiwan’s green building standards, Ecotect remains a fast and intuitive tool for early-stage energy-saving assessments and is gradually gaining acceptance among architects.
5. Autodesk Civil 3D
Autodesk Civil 3D is a BIM software built on the AutoCAD platform, designed specifically for civil engineering tasks. It offers a 3D design environment for railway and highway alignment, road corridors, site grading, earthwork, gravity and pressure pipelines, and more.
Thanks to AutoCAD’s widespread use, Civil 3D benefits from user familiarity with 2D mapping. It converts traditional survey data and contour lines into 3D terrain models, which serve as the foundation for civil engineering designs. Civil 3D supports parameterized road models, including alignment, slopes, and cross-sections, and comes with built-in components like lanes, sidewalks, and gutters, which can be customized to client requirements or design standards.
The software quickly calculates earthwork volumes between existing and proposed terrain, helping optimize excavation and fill distances. It also offers tools for designing stormwater collection systems, sewage, and drainage networks, with graphical interfaces for editing pipe networks and structures.
Revit architectural models can be imported into Civil 3D to integrate building-related infrastructure such as utility connections and access points. Conversely, road design data can be shared with structural and architectural teams to coordinate building and infrastructure layouts. Additionally, the Autodesk geotechnical module, developed by Keynetix, operates within Civil 3D to manage drilling data, soil layers, and generate 3D visualizations from site investigations.
6. Bentley Products
Bentley is another major player in engineering software, offering powerful 3D modeling through MicroStation. This platform is complemented by civil engineering packages like Power Civil, RailTrack, SewerCAD for sewer systems, gINT for geological databases, and RM Bridge for bridge design, providing comprehensive solutions for infrastructure projects.
7. CATIA
CATIA, developed by Dassault Systèmes in France, is a cross-platform commercial 3D CAD software widely used in the aerospace and automotive industries. Boeing is a notable user of CATIA. Its exceptional surface modeling capabilities make it popular for designing complex automotive components such as car bodies, doors, and roofs.
CATIA’s application to the construction industry, particularly for modern buildings with free-form surfaces, demonstrates its versatility and market potential. Effective BIM requires smooth data exchange between software, which is facilitated by standardized formats.
To address interoperability, the International Alliance for Interoperability (IAI) introduced the Industry Foundation Classes (IFC) format in 1994, now widely adopted as a BIM exchange standard. Although some original data structures may not be fully preserved, geometric information is generally transferable between software through IFC files. In 2005, IAI evolved into BuildingSMART, promoting the OpenBIM concept to enhance seamless data integration across certified software. This development is an important trend to watch in the future of BIM technology.
That concludes our introduction to the commonly used BIM modeling software. We hope this article provides valuable insights and helps you better understand the tools shaping the future of building design and construction!
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