Abstract
Wind action is one of the environmental actions which has substantial static and dynamic effects on the long-span bridges. The main objective of the paper is to reveal the static and dynamic characteristics of the regular wind and typhoon condition. A monitoring-based investigation has been carried out to analyze the characteristics of the wind actions. The static characteristics of regular wind and typhoon condition are investigated by analyzing the average wind speed. Moreover, the dynamic characteristics of the two conditions of wind actions are studied by analyzing the parameters of turbulence intensity and gust factors. The correlation analysis is performed between the lateral wind speed and the lateral girder displacement to reveal the static effects of the wind actions on the bridge structures. It is concluded that static and dynamic characteristics of regular wind and typhoon conditions are quite different, and the dynamic effects of wind actions obtained based on monitoring data need to be further studied.
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The writers gratefully acknowledge the sponsorship of the National Natural Science Foundation of China (Grant Nos. 51625802, 51708088), the 973 Program (Grant No. 2015CB060000), the National Key Research and Development Program of China (Grant No. 2016YFC0701108) and the Found of Key laboratory of concrete and prestressed concrete structure of Ministry of Education (Grant No. CPCSME2016-04).
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Yang, DH., Yi, TH., Li, HN. et al. Monitoring-based analysis of the static and dynamic characteristic of wind actions for long-span cable-stayed bridge. J Civil Struct Health Monit 8, 5–15 (2018). https://doi.org/10.1007/s13349-017-0257-0
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DOI: https://doi.org/10.1007/s13349-017-0257-0