Ductility evaluation of concrete-encased steel bridge piers subjected to lateral cyclic loading

Hideki Naito*, Mitsuyoshi Akiyama, Motoyuki Suzuki

*この研究の対応する著者

研究成果査読

37 被引用数 (Scopus)

抄録

An experimental and analytical study was conducted to investigate the ductility of concrete-encased steel piers, referred to as "steel-reinforced concrete (SRC) construction." Based on the cyclic lateral loading tests of SRC column specimens, the restorable and ultimate limit states are defined as the point when concrete cover spalling occurs (equivalent to longitudinal bar buckling) and the point when flange buckling of the H-shaped steel occurs, respectively. To estimate the lateral displacement capacity at both the restorable and ultimate limit states, the curvature distribution of the column was calculated based on the buckling analysis of the longitudinal bar, which was restrained by a concrete cover and transverse reinforcement, and of the steel flange encased in concrete. The lateral displacement was obtained by integrating the curvature distribution. Comparison of the computed results with experimental results, including other writers' reports, confirmed that the proposed method can appropriately estimate the lateral displacement at the restorable and ultimate limit states, and it can accurately evaluate the buckling characteristics of the longitudinal bar and steel flange components of SRC column specimens.

本文言語English
ページ(範囲)72-81
ページ数10
ジャーナルJournal of Bridge Engineering
16
1
DOI
出版ステータスPublished - 2011 1 1
外部発表はい

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設

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