Paper Title:

Dynamic Amplification Factor Measuring of T-Girder Bridges

Periodical Key Engineering Materials (Volume 540)
Main Theme Some Research Results on Bridge Health Monitoring, Maintenance and Safety
Edited by Yang Liu
Pages 29-36
DOI 10.4028/www.scientific.net/KEM.540.29
Citation Jian Rong Yang et al., 2013, Key Engineering Materials, 540, 29
Online since January, 2013
Authors Jian Rong Yang, Yu Bai, Xiao Dong Yang, Yun Feng
Keywords Dynamic Amplification Factor, Full-Scaled Testing, T-Girder Bridge, Traffic Load
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Field measurement was conducted on the evaluation of dynamic amplification factors (DAF) for four existing T-girder bridges. Both ambient vibration testing and vehicle impact testing were carried out on the bridges. Ambient vibration testing is relatively easier to conduct and can provide detailed vibrating information of the structure. However vehicle impact testing is indispensable to obtain the impact factor of the traffic load. The measured vibration frequencies matched well to those of calculated values. This means that the finite element model may enable good predictions of the actual behavior of the bridge. The measured DAF for these bridges located in the interval [1.05, 1.22].

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