Core Insights - The article highlights the innovative design and construction of the Shanhe Intelligent Headquarters building in Changsha, which is the first prefabricated fair-faced concrete building to win the Luban Award in China, representing a model of green, digital, intelligent, and prefabricated construction [1][7] Group 1: Architectural Features - The building showcases a modern industrial style with exposed fair-faced concrete, eliminating the need for traditional decorative finishes like tiles and paint [1][3] - The construction process utilized customized stainless steel molds and self-compacting concrete, ensuring that the flatness error of each wall panel and beam is controlled within 2 millimeters [3][5] - Fair-faced concrete, also known as decorative concrete, is characterized by its natural surface effect achieved through a single pour without external decoration, which requires high production difficulty and craftsmanship [3][5] Group 2: Smart Construction Techniques - The project exemplifies full-chain intelligent construction by integrating design, production, construction, and operation through a collaborative approach using BIM technology [5][7] - The PKPM-BIM platform was central to the project, enabling real-time data sharing and tracking of production status, which minimized errors and improved efficiency [5][7] - The project achieved a prefabrication rate of 55%, with 3,965 prefabricated components produced in a factory and assembled on-site with millimeter-level precision [5][7] Group 3: Industry Recognition - The Shanhe Intelligent Headquarters building has received significant recognition, winning the Luban Award in 2022, marking it as the first building using prefabricated fair-faced concrete technology to achieve this honor [7] - The project serves as a model for the intelligent construction pilot city initiative in Changsha, providing replicable experiences for future projects [7] - Changsha is developing a smart construction system centered around new construction management models that integrate BIM technology, promoting industrialization in the construction sector [7]