China adapts skyscraper technology for residential construction

A residential tower in Urumqi, northwest China's Xinjiang Uygur Autonomous Region, is rising beneath a giant enclosed platform that climbs with the building, turning an open-air construction site into what engineers describe as a mobile factory.

The more than 200-ton platform, known as a residential "building machine," is based on intelligent construction technologies originally developed for skyscrapers. Unlike conventional climbing scaffolding, it encloses the top of the building, creating a factory-like workspace where workers can simultaneously install rebar, assemble formwork and pour concrete while sheltered from wind and rain.

Developed by China Construction Third Engineering Bureau (CSCEC Third Bureau), the system integrates six major subsystems, including an intelligent hydraulic lifting system, a steel working platform and digital control technologies.

The platform is equipped with a suite of intelligent safety features. Twenty-two sensors continuously monitor its operating status, while AI-powered cameras automatically detect hazards such as workers not wearing safety helmets or signs of fire. An ultrasonic sensing system checks whether lifting conditions are safe before enabling one-touch operation.

Once a floor is completed, the entire platform lifts itself one floor in about 40 minutes. Because multiple construction processes take place simultaneously within the enclosed workspace, one floor can be completed in as little as four days, shortening the overall construction schedule by about 30%, according to the developer.

Engineers also adapted the system to withstand Xinjiang's harsh winters by adding an intelligent heating module to the hydraulic system, ensuring stable performance in low temperatures.

Beyond improving construction speed, the enclosed platform helps reduce dust and noise while creating a safer and more controlled working environment for workers.

The residential "building machine" reflects a broader trend in China's construction industry, where technologies once reserved for landmark skyscrapers are being adapted for wider use in housing projects. In addition to the climbing platform, the Urumqi development employs remotely operated 5G tower cranes, BIM-based 3D construction simulation and a digital smart construction management platform.