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Bridge support elastic reactions under vertical earthquake ground motion

Journal Article


Abstract


  • In North America, bridges are not typically designed for vertical earthquake ground motion. Design codes, AASHTO in the USA and S6-06 in Canada, do not explicitly consider the effect of vertical earthquake ground motion in the design of highway bridges. However, analytical and field evidences have often drawn engineers' attention to the damage potential of vertical earthquake ground motion to engineered bridges. This paper proposes a simplified method to calculate elastic support reactions under vertical earthquake ground motion. Support reactions are first calculated by exact dynamic method. By applying a few assumptions, a simplified method has been developed. The developed method can be readily used in the design of typical bridges with regular span distribution. This simplified method has been demonstrated with several examples.

Publication Date


  • 2009

Citation


  • Legeron, F. & Sheikh, M. Neaz. (2009). Bridge support elastic reactions under vertical earthquake ground motion. Engineering Structures, 31 (10), 2317-2326.

Scopus Eid


  • 2-s2.0-70349173405

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1399

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 2317

End Page


  • 2326

Volume


  • 31

Issue


  • 10

Abstract


  • In North America, bridges are not typically designed for vertical earthquake ground motion. Design codes, AASHTO in the USA and S6-06 in Canada, do not explicitly consider the effect of vertical earthquake ground motion in the design of highway bridges. However, analytical and field evidences have often drawn engineers' attention to the damage potential of vertical earthquake ground motion to engineered bridges. This paper proposes a simplified method to calculate elastic support reactions under vertical earthquake ground motion. Support reactions are first calculated by exact dynamic method. By applying a few assumptions, a simplified method has been developed. The developed method can be readily used in the design of typical bridges with regular span distribution. This simplified method has been demonstrated with several examples.

Publication Date


  • 2009

Citation


  • Legeron, F. & Sheikh, M. Neaz. (2009). Bridge support elastic reactions under vertical earthquake ground motion. Engineering Structures, 31 (10), 2317-2326.

Scopus Eid


  • 2-s2.0-70349173405

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1399

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 2317

End Page


  • 2326

Volume


  • 31

Issue


  • 10