ULTIMATE STATE OF THIN-WALLED STIFFENED RECTANGULAR STEEL COLUMNS UNDER BI-DIRECTIONAL SEISMIC EXCITATIONS

• GOTO Yoshiaki

  名古屋工業大学 工学研究科社会工学専攻

• KOYAMA Ryosuke

  中日本高速道路（株）東京支社清水工事事務所

• FUJII Yusuke

  西日本高速道路（株）関西支社和歌山管理事務所

• OBATA Makoto

  名古屋工業大学 工学研究科社会工学専攻

Bibliographic Information

Other Title

• ２方向地震動を受ける矩形断面鋼製橋脚の動特性と耐震照査法における限界値

Abstract

An investigation is made on how the coupling of bi-directional horizontal seismic excitations affects the ultimate behaviour of thin-walled stiffened rectangular steel columns used as bridge piers. First, an accurate bi-directional pseudo-dynamic test is conducted to examine their ultimate behaviour as well as to confirm the accuracy of the proposed nonlinear dynamic FEM shell analysis. Then, an instability criterion is derived to identify the ultimate state of columns. Finally, an extensive dynamic analysis under various bi-directional seismic excitations is carried out to confirm the accuracy of the proposed ultimate interaction curve expressed in terms of the two horizontal restoring force components.

Journal

• Doboku Gakkai Ronbunshuu A

  Doboku Gakkai Ronbunshuu A 65 (1), 61-80, 2009

  Japan Society of Civil Engineers

Keywords

• steel bridge pier
• seismic design
• dynamic
• bi-directional
• ultimate state
• instability

Details

• CRID: 1390282680231875968
• NII Article ID: 130004467176
• DOI: 10.2208/jsceja.65.61
• ISSN: 18806023
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed