2015

Construction monitoring and design of wind and structural performance monitoring system for the Shanghai Tower

Ir Prof. Xu You-lin and Ir Prof. Xia Yong led a PolyU team to help designing the long-term performance monitoring system, establishing the hardware framework of the system and processing various types of data for the 632m tall Shanghai Tower. They were responsible for the construction monitoring and surveying of the project, and continuously monitored the settlement of 15 key floors during the construction stage. Through integration of field monitoring and numerical analysis, they developed a new Kalman filtering based technique to predict the shortening of core walls and mega columns at each construction step. It helped the practitioners to determine the position of to-be-constructed components precisely. They also invented a temperature model of the Shanghai Tower with the use of the field monitoring data, providing a first-hand structural temperature data of Shanghai region, which was not available in design codes when the structure was designed. It led to a better understanding of temperature effect on the Tower, and benefited the industry as a whole for designing other structures in the future.