Abstract: During long-term operation,factors such as prolonged loading and material aging gradually reduce the stability and bearing capacity of super-tall structures,making them prone to safety incidents.Therefore,it is essential to conduct real-time deformation monitoring of skyscrapers to understand their health status.This study takes the Shandong International Financial Center and the Yunding duilding as research objects.It integrates technologies such as ground-based real aperture radar(GB-RAR),dual-axis tilt sensors,and GNSS technology to monitor the dynamic deformation characteristics of the super-tall structures from multiple dimensions.Furthermore,the study achieves the indoor and outdoor integrated modeling of the Shandong International Financial Center based on handheld and station-based LiDAR technology,establishing a skyscraper deformation monitoring and early warning visualization platform.The results indicate that the GB-RAR measurement accuracy reaches 0.016 5 mm,which satisfies the precision requirements for deformation monitoring.The deformation pattern of the Shandong International Financial Center exhibits a spatio-temporal characteristic of sway and vibration synergistic evolution.The main direction of the sway movement is from the southeast to the northwest,with a sway period of approximately 20 d.The sway amplitude at a height of 400 m is about 180 mm,and the average sway velocity is approximately 1.5 mm/h.The structural transfer floor,located at 330 m,balances the eccentric axial force of the super-tall structure.This floor exhibits a sway amplitude of approximately 551 mm and an average sway velocity of about 5.19 mm/h.This transfer floor is a key factor causing the overall spatial state of the skyscraper to switch back and forth among S-shaped,hyperbolic,and diagonal configurations,thereby presenting non-linear elastic deformation characteristics.

Key words: super high-rise buildings, GB-RAR, dual-axis tilt sensor, deformation monitoring, visualization