Static and Dynamic Deformation Monitoring of Super High-Rise Buildings During the Construction Stage

GAO Ke; DENG Deyuan; ZHU Hongping; WENG Shun; GAO Fei

doi:10.3724/j.gyjzG23081112

Volume 54 Issue 1

Jan. 2024

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GAO Ke, DENG Deyuan, ZHU Hongping, WENG Shun, GAO Fei. Static and Dynamic Deformation Monitoring of Super High-Rise Buildings During the Construction Stage[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(1): 130-139. doi: 10.3724/j.gyjzG23081112

Citation:

GAO Ke, DENG Deyuan, ZHU Hongping, WENG Shun, GAO Fei. Static and Dynamic Deformation Monitoring of Super High-Rise Buildings During the Construction Stage[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(1): 130-139. doi: 10.3724/j.gyjzG23081112

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Static and Dynamic Deformation Monitoring of Super High-Rise Buildings During the Construction Stage

doi: 10.3724/j.gyjzG23081112

GAO Ke¹,
DENG Deyuan²,
ZHU Hongping^1,3,
WENG Shun^{1,3
,
,},
GAO Fei^1,3

1. School of Civil and Hydraulic Engineering Huazhong University of Science and Technology, Wuhan 430074, China;
2. China Construction Steel Structure Guangdong Co. Ltd., Huizhou 516259, China;
3. Hubei Key Laboratory of Control Structure, Wuhan 430074, China

Received Date: 2023-08-11
Available Online: 2024-02-27

Abstract

Abstract

To address the insufficient research on the measurement of static and dynamic deformations of super high- rise buildings during the construction stage, a structural health monitoring (SHM) system was installed on the main structure of a practical super high-rise building with a height of 335 m.Thus the temperature deformation, vertical deformation, and dynamic displacement of the main structure during the construction stage were measured and analyzed. The uneven distribution of temperature in the main structure during the construction stage was identified, and the strain characteristics of the structure under the influence of temperature were analyzed. The results showed that the strain caused by seasonal temperature difference was greater than the strain caused by the self-weight of the upper structure and the concrete shrinkage and creep over the same period. The developments of the vertical deformation and the inter-story uneven deformation during the construction stage were explained. The degree of uneven deformation increased with structural height and time. The maximum deformation difference among the points of the same floor was 5.3 mm. The axial stress of the girder was positive correlated with the difference in vertical strain between the two ends of the girder. The difference in vertical deformation between the outer frame and the core tube could lead to tensile cracking in the girder. A structural dynamic displacement estimation method based on Kalman filtering was proposed, which could improve could the accuracy of dynamic displacement estimation by fusing acceleration data and strain data, and could accurately estimate the dynamic displacement of super high-rise building under dynamic construction loads.
- super high-rise building,
- structural health monitoring,
- temperature deformation,
- vertical deformation,
- dynamic displacement estimation

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References(18)

References

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