This study addresses the automation of design and fabrication for irregular façade panels and sub-frames using BIM.
The new LH Headquarters features a complex, irregular curved façade symbolizing a 'Millennium Tree'; BIM technology was fully adopted as conventional 2D methods were insufficient for construction. The core challenge was to overcome the limitations of the existing 'Twisted Built-up Beam' method, such as low precision and increased costs. Consequently, the 'Spaceframe' method was proposed as the optimal alternative for shortening schedule, improving quality, and ensuring safety.
With consultation from Syntegrate, the project team developed and applied BIM-based automation programs for spaceframe and exterior panel design. This automation technology was utilized for the fabrication of approximately 9,900 spaceframe members and 5,000 panels.
The results were overwhelming. Spaceframe work that would take 10 people 10 days was completed by 1 person in 1 day. Panel and sub-frame work also demonstrated a level of productivity improvement where work requiring 9 people for 10 days could be processed by 1 person in 1 day.
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