Research of Longitudinal Seismic Response of Self-Anchored Cable-Stayed Suspension Bridge under Pile-Soil-Structure Interaction

Feng Miao; Wang  Bo; Guan  Ping

doi:10.4028/www.scientific.net/AMR.255-260.1167

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260Research of Longitudinal Seismic Response of...

Research of Longitudinal Seismic Response of Self-Anchored Cable-Stayed Suspension Bridge under Pile-Soil-Structure Interaction

Abstract:

Based on scheme of Dalian gulf cross-sea bridge, in this paper, a 3-dimensional FE model for Self-anchored cable-stayed suspension bridge is established with finite element program and pile-soil-structure interaction is simulated by use of the equivalent embed fixation model. Based on the FE model, model analysis is carried out and the effects of pile-soil-structure interaction on dynamic behavior of long-span self-anchored cable-stayed suspension bridge are specially studied. The seismic response analysis result considering that pile-soil-structure interaction was compared with that of without considering such interaction. The analysis result show that interaction extend the nature period of structure, has the greatest impact to the first vibration mode; meanwhile, enlarged longitudinal displacement and moment of stiffening beam in middle of main span, longitudinal displacement on top of tower and axial force at bottom, but reduced the moment of tower at bottom. The research results provide some theoretical foundation to composite structure system.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

1167-1170

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.1167

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Online since:

May 2011

Authors:

Feng Miao, Wang Bo, Guan Ping

Keywords:

Dynamic Behavior, Equivalent Embed Fixation Model, Longitudinal Seismic Response, Pile-Soil-Structure Interaction (PSSI), Self-Anchored Cable-Stayed Suspension Bridge

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