Evaluation of the Dynamic Characteristics of an Extradosed Bridge Using Microwave Interferometer
The microwave interferometer used in the present study is capable of multiple-point displacement measurements. In this paper, a general review of the principle and capacity of such an instrument is given. The vertical displacements of the Ai-Lan bridge corresponding to ambient vibration due to traffic loads are remotely monitored . Several modal shapes of the whole bridge are precisely identified by linking the mode shapes of seven sequential measurements.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
K. T. Hsu et al., "Evaluation of the Dynamic Characteristics of an Extradosed Bridge Using Microwave Interferometer", Advanced Materials Research, Vols. 374-377, pp. 2426-2429, 2012