Dynamic P-Δ Effect on Probabilistic Residual Displacement of Bridge Structures

Bo Yu; Di  Liu; Lu Feng Yang

doi:10.4028/www.scientific.net/AMM.405-408.1678

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Research on the Effect of Width-Span Ratio on the Bridge Impact Coefficient
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Probabilistic Peak Displacement Analysis of Bridge Structures with P-Δ Effect
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 405-408Dynamic P-Δ Effect on Probabilistic Residual...

Dynamic P-Δ Effect on Probabilistic Residual Displacement of Bridge Structures

Abstract:

Residual displacement has been identified as one of the most important parameter to assess the reparability and usability of bridge structures after strong earthquake, which is significantly impacted by the P-Δ effect. In this study, the influence of the P-Δ effect on the probabilistic characteristics of residual displacement of bridge structure was quantificationally investigated based on a series of nonlinear time-history analysis. The bridge structure was idealized as the single-degree-of-freedom (SDOF) system and the hysteretic behaviour was represented by the improved Bouc-Wen model. The statistic analysis was implemented based on the inelastic dynamic responses of the SDOF system under 69 selected earthquake records. The results show that the P-Δ effect has significant impact on the residual displacement, especially for systems with large stability factor and/or small post-yield stiffness ratio and yield strength.

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Periodical:

Applied Mechanics and Materials (Volumes 405-408)

Pages:

1678-1681

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.405-408.1678

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Online since:

September 2013

Authors:

Bo Yu, Di Liu, Lu Feng Yang

Keywords:

Bridge, P-ΔEffect, Residual Displacement, Seismic

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