Research and Monitoring of Structural Wind-Induced Disaster

Programme overview

Before bridge construction, it is necessary to evaluate the construction environment, in which the assessment of wind field is very important. After the completion, long-term wind condition monitoring should be carried out to judge the wind resistance of the bridge. As bridges become larger and lighter across the border, the probability of wind damage on the bridge increases. The study of bridge wind resistance and the prevention of wind damage have become a great concern for bridge design and site selection. The research on wind resistance of bridges has long relied on wind measurement towers, but the disadvantages of wind towers such as cost, inportability, and high installation environment requirements have been fully exposed. Thanks to its high precision, small size, scannable monitoring, flexible and convenient features, wind lidar has brought new monitoring methods to the study of bridge wind resistance.


Features of the scheme

We designed two scanning modes for bridge wind resistance monitoring, which are bridge virtual wind tower mode and bridge deck wind field measurement mode.
1) Measure the vertical wind profile of the four virtual wind measuring towers of the bridge;
2) Measure wind speed and direction at multiple measuring points on the horizontal bridge deck.


Application cases