Kai Tak Main Stadium

The Largest Stadium in Town

Kai Tak Sports Park, located at the former Kai Tak Airport in Kowloon, Hong Kong, is the largest sports venue in the city. The main construction challenge for the project is the lifting of four prefabricated mega-trusses, with a total net weight exceeding 6000 tons.

In support of the construction, Sixense was appointed to install a monitoring system for the strain and tilting of the mega-struts. Monitoring the behavior of the steel during the critical construction process, the system was in operation from 2022 to 2023.

Heavy Lifting

Our team installed 81 tiltmeters and 84 strain gauges on the structure to monitor the behavior of the steel during the critical construction processes. These instruments provide real-time data on deformation during the installation of the fixed roof, retractable roof, and other systems. Wireless dataloggers were installed in close proximity to the strain gauges, greatly reducing the bulk of the system by eliminating the wired components between the sensors at the roof of the stadium, and the gateway on the ground.

The raw signal transmitted through radio transmission in a mesh network to the gateway. The data was then sent online to our in-house online platform where the derivative calculations were performed. The automatic report generation tool helped the Client extract any information from any time on-demand, significantly saving time over manual data extraction.

Grand Opening

Our system and platform are proven effective and efficient, receiving high praise from the Client. Smooth operations ensured that our intervention, once installed in place, were minimal. Batteries from the nodes and dataloggers were sufficient to last longer than the entire monitoring period, while delivering hourly updates. Completing the monitoring works in 2023, Sixense is proud to have been a part of this engineering feat.