The rise of new building types has increased the demands on technology and construction teams during the project execution phase. With BIM technology visualization, complex construction nodes—such as intricate steel-wood connection points—can be thoroughly demonstrated. Dynamic model simulations enable comprehensive analysis of construction plans, improving technical disclosures and ensuring the feasibility and efficiency of the construction process. On-site, simulated construction guides technicians in node installation, while QR codes allow components to be imported directly into the component library, reducing errors.
Beyond construction simulation, BIM technology also supports the simulation of building environments and performance aspects, including energy efficiency, sunlight exposure, line of sight, computational fluid dynamics (CFD), and evacuation scenarios.
Simulation software such as Ecotect and EnergyPlus can directly import BIM files for detailed analysis, greatly simplifying architects’ workflows. Compared to traditional evaluation methods, BIM-based simulations offer a more comprehensive and precise assessment of building environment and performance:
1. Sunlight Analysis: Provides a full 3D visualization of sunlight exposure, calculating the duration of sunlight on any building facade or ground area while considering occlusions, allowing detailed analysis of sunlight and shadow periods.
2. Heat Supply Analysis: Evaluates solar heat gain in buildings, including heat reflection and radiation, and maps temperature distribution across building facades and interiors, factoring in shading effects.
3. Ventilation Analysis: Uses CFD fluid dynamics models combined with meteorological data and multi-level CFD calculations to quantify wind speed, airflow direction, air age, and urban heat island areas.
4. Energy Consumption Analysis: Simulates regional energy demands across varying population sizes, covering water, electricity, heating, oxygen consumption, and carbon dioxide emissions.
5. Noise Analysis: Employs three-dimensional source analysis to assess noise reflection and attenuation between terrain and buildings.
6. Landscape Visibility: Calculates detailed occlusions to determine the visible area of targeted landscapes from various locations within the site.
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