Study on the application of ambient vibration tests to evaluate the effectiveness of seismic retrofitting

3rd International Conference on Energy Equipment Science and Engineering

Liang, Li^1 ; Takaaki, Ohkubo^2 ; Guang-Hui, Li^1

School of Civil Engineering and Architecture, Zhengzhou University of Aeronautics, Zhengzhou

450015, China^1

Department of Architecture, Graduate School of Engineering, Hiroshima University, Japan^2

关键词: Acceleration response spectrums;    Ambient vibration test;    Measurement experiments;    Seismic Performance;    Seismic resistance;    Seismic retrofitting;    Vibration characteristics;    Wireless measurement system;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012089/pdf
DOI  :  10.1088/1755-1315/128/1/012089

来源: IOP

【 摘 要 】

In recent years, earthquakes have occurred frequently, and the seismic performance of existing school buildings has become particularly important. The main method for improving the seismic resistance of existing buildings is reinforcement. However, there are few effective methods to evaluate the effect of reinforcement. Ambient vibration measurement experiments were conducted before and after seismic retrofitting using wireless measurement system and the changes of vibration characteristics were compared. The changes of acceleration response spectrum, natural periods and vibration modes indicate that the wireless vibration measurement system can be effectively applied to evaluate the effect of seismic retrofitting. The method can evaluate the effect of seismic retrofitting qualitatively, it is difficult to evaluate the effect of seismic retrofitting quantitatively at this stage.