Structural monitoring of Shanghai Expo Axis
Project name: Shanghai Expo Axis Online Monitoring
Brief introduction: The Shanghai World Expo Axis, a landmark architectural structure and one of the key venues from the 2010 World Expo, is renowned for its vast roof structure and large public space beneath it. Ensuring the structural safety of such a massive and publicly utilized space requires precise, continuous, and reliable monitoring—especially given the variable environmental loads it is exposed to, such as wind and dynamic vibration.
To address this need, Tongji University partnered with Dynatronic to implement an advanced online structural monitoring system. The solution centered around the DE-944 Dynamic Data Acquisition and Analysis System, a high-performance platform designed for long-term, real-time data collection and analysis in complex environments.
The monitoring focused on two key environmental and structural indicators:
Vibration of the roof structure, which may result from wind, foot traffic, or other external factors
Wind speed and pressure, which can influence structural stability, fatigue, and long-term durability
Equipped with advanced vibration sensors and wind speed/pressure transducers strategically installed at key points on the Expo Axis, the DE-944 system enabled comprehensive multi-channel, high-accuracy data acquisition. This advanced setup allowed for seamless real-time data transmission and centralized analysis, making it possible to detect abnormal structural responses early and provide timely alerts to stakeholders before any potential issues could escalate further.
By operating continuously over an extended period of time, the system provided engineers and researchers with invaluable and detailed data for thoroughly assessing the health and behavior of the structure under real-world, dynamic conditions. This comprehensive information helped verify design assumptions with greater accuracy, optimize maintenance strategies more effectively, and, most importantly, ensure the safety and well-being of the public at all times.
The success of the project showcases how cutting-edge sensing and data acquisition technologies like DE-944 can be integrated into civil engineering monitoring systems to provide long-term structural insight for complex, large-scale infrastructures.
