Ultimate state of bridges with rocking isolation under extreme earthquakes

T. Y. Lee, M. Y. Huang, K. J. Chung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study is aimed to analyze the ultimate state of bridges with rocking isolation of spread foundations under extreme earthquakes. The Vector Form Intrinsic Finite Element method (VFIFE) is adopted to simulate the failure procedure of bridges with and without rocking isolation. To simulate the highly nonlinear behaviors between soil and foundations, Winkler-based models are established in the VFIFE in this study. A practical five-span bridge with spread foundations is chosen to study the effect of rocking isolation and discuss the influence of altering parameters of bridges. The analytical results are compared between linear soil springs and nonlinear soil springs. Furthermore, the ultimate state of bridges is simulated to realize the dynamic behaviors of bridges under extreme earthquakes.

Original languageEnglish
Title of host publicationAdvances in Civil and Industrial Engineering IV
PublisherTrans Tech Publications Ltd
Pages1555-1558
Number of pages4
ISBN (Print)9783038351658
DOIs
StatePublished - 2014
Event4th International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2014 - Haikou, China
Duration: 24 May 201425 May 2014

Publication series

NameApplied Mechanics and Materials
Volume580-583
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference4th International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2014
Country/TerritoryChina
CityHaikou
Period24/05/1425/05/14

Keywords

  • Bridge
  • Extreme earthquakes
  • Rocking isolation
  • Spread foundation
  • Ultimate state

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