Study on stabilizer aerodynamic measure of a cable-stayed bridge with a steel-concrete composite edge girder
WANG Jiaxing1, NIU Huawei1, JIN Junzhong2, ZHANG Zhitian1, CHEN Zhengqing1
1.Hunan Provincial Key Laboratory for Wind Engineering and Bridge Engineering,Hunan University,Changsha 410082,China;
2.Henan Province Highway Engineering Bureau Group Co.Ltd.,Zhengzhou 450052,China
A steel-concrete composite edge girder is widely used in a long-span cable-stayed bridge,but it frequently leads to remarkable vortex-induced vibration and low flutter critical wind speed.Therefore,aerodynamic measures are always needed to improve the aerodynamic performance when this type of bridge is built in coastal region.Based on two cable-stayed bridges with steel-concrete composite edge girder,the controlling effect of stabilizer on the steel-concrete composite girder was investigated with a series of sectional model wind tunnel tests.The results indicate that the stabilizer can effectively eliminate vortex-induced vibration and increase the flutter critical wind speed of the edge girder section.
王嘉兴1，牛华伟1，靳俊中2，张志田1，陈政清1. 钢-砼叠合边主梁斜拉桥稳定板气动措施研究[J]. 振动与冲击, 2017, 36(8): 48-54.
WANG Jiaxing1, NIU Huawei1, JIN Junzhong2, ZHANG Zhitian1, CHEN Zhengqing1. Study on stabilizer aerodynamic measure of a cable-stayed bridge with a steel-concrete composite edge girder. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(8): 48-54.
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