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2008•Zhongnan Linye Keji Daxue xuebaoRequires access

Analysis of the Dynamic Characteristics of Bairiba Bridge

HE Guo-jing

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Abstract

For the design of many long-span bridges,arch bridge structure of such concrete has been widely adopted.Thus,the dynamic properties of such bridges have been showing more and more important value but neither abroad nor at home have specialists done enough research on this type of bridges.This paper,by using ANSYS software,has built up a 3D FEM model for computing and analyzing the dynamic characteristics of Bairiba Bridge,in Sichuan Province,which is a CFST arch bridge.Based on the model,the paper goes into details about its dynamic characteristics,particularly the effects of arch structures upon them.The results indicate that the rigidity of arch ribs and the rigidity and quantity of transverse brace both exert influence on the structures.

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What this paper is about

For the design of many long-span bridges,arch bridge structure of such concrete has been widely adopted.Thus,the dynamic properties of such bridges have been showing more and more important value but neither abroad nor at home have specialists done enough research on this type of bridges.This paper,by using ANSYS software,has built up a 3D FEM model for computing and analyzing the dynamic characteristics of Bairiba Bridge,in Sichuan Province,which is a CFST arch bridge.Based on the model,the paper goes into details about its dynamic characteristics,particularly the effects of arch structures upon them.The results indicate that the rigidity of arch ribs and the rigidity and quantity of transverse brace both exert influence on the structures.

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Available abstract

For the design of many long-span bridges,arch bridge structure of such concrete has been widely adopted.Thus,the dynamic properties of such bridges have been showing more and more important value but neither abroad nor at home have specialists done enough research on this type of bridges.This paper,by using ANSYS software,has built up a 3D FEM model for computing and analyzing the dynamic characteristics of Bairiba Bridge,in Sichuan Province,which is a CFST arch bridge.Based on the model,the paper goes into details about its dynamic characteristics,particularly the effects of arch structures upon them.The results indicate that the rigidity of arch ribs and the rigidity and quantity of transverse brace both exert influence on the structures.

Key concepts: Arch, Brace, Structural engineering, Arch bridge, Rigidity (electromagnetism), Bridge (graph theory), Finite element method, Computer science

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