Multi-scale Finite Element Modeling Method on Super-long-span Suspension Bridges with Central Buckle

WANG Hao, LI Ai-qun, GUO Tong

China Journal of Highway and Transport ›› 2009, Vol. 22 ›› Issue (6) : 60-66.

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China Journal of Highway and Transport ›› 2009, Vol. 22 ›› Issue (6) : 60-66.
Original Article

Multi-scale Finite Element Modeling Method on Super-long-span Suspension Bridges with Central Buckle

  • WANG Hao1,2, LI Ai-qun1,2, GUO Tong1,2
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Abstract

Runyang Suspension Bridge (RSB) with a main span of 1 490 m was taken as an example, and the multi-scale finite element (FE) modeling method on super-long-span suspension bridges oriented to structural health monitoring and safety assessment was proposed. Multi-scale three-dimensional FE models for RSB were established with ANSYS. The refined models for the key components of RSB were particularly established according to various researches, and the connection of the different scale models were realized based on the submodel method. The multi-scale FE modeling method and its validation on the steel box girder and the central buckle of super-long-span suspension bridges were studied. Results show that calculated results agree well with field test results. It proves that the FE analysis results and the multi-scale FE modeling method are effective. The results obtained in this paper provide research basis for safety assessment and health monitoring of RSB.

Key words

bridge engineering / super-long-span suspension bridge / multi-scale finite element modeling / central buckle / field test

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WANG Hao, LI Ai-qun, GUO Tong. Multi-scale Finite Element Modeling Method on Super-long-span Suspension Bridges with Central Buckle[J]. China Journal of Highway and Transport, 2009, 22(6): 60-66

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