Dynamic finite element model and validation of a special-shaped cable-stayed bridge

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (12) : 55-60.

Li Zhi-gang1 Yang Xia2 Ren Wei-xin2

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Abstract

Based on a special-shaped steel pedestrian bridge, the finite models of girder are discussed. A concise and effective model of the special-shaped cable-stayed bridge is established and the procedure of finite element modeling is presented. The accurate and effective of the finite element model of the bridge is certified by ambient vibration test. By use of the finite element model updating method, parameters of the finite element model are analyzed and optimized. Result shows that the finite element model can reflect the bridge in dynamic characteristics accurately. The modeling method is worth to bridge engineering application.

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special-shaped cable-stayed bridge / finite element model / ambient vibration test / finite element model updating

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Li Zhi-gang1 Yang Xia2 Ren Wei-xin2. Dynamic finite element model and validation of a special-shaped cable-stayed bridge[J]. Journal of Vibration and Shock, 2017, 36(12): 55-60

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