期刊
ENGINEERING STRUCTURES
卷 147, 期 -, 页码 269-284出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2017.05.070
关键词
Suspension bridge; Bridge monitoring; Field measurement; Wind characteristics; Response surface methodology; Complex terrain; Bridge dynamic response
资金
- Norwegian Public Roads Administration
Long-term monitoring data of wind velocities and accelerations on the Hardanger Bridge are used to investigate the relationship between the wind-loading and response processes. The extensive measurement system consisting of 20 accelerometers and 9 anemometers is described as well as the local topography of the site. The wind and response characteristics are presented using scatter plots and wind rose diagrams. The considerable variability observed in the bridge dynamic response is investigated by utilizing response surface methodology. Simple parameters of the wind field are selected as the predictor variables in the analyses. The variability in response is attributed to the variable wind field, and the effects of the significant parameters on the response are presented in a statistical framework. The agreement of the findings with previous considerations and the implications on the design of long-span suspension bridges are discussed. (C) 2017 Elsevier Ltd. All rights reserved.
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