EFFECT OF DAMAGED ANCHORAGE ON ULTIMATE BEHAVIOR OF STEEL BRIDGE PIERS UNDER BI-DIRECTIONAL CYCLIC LOADS

• MIZUNO Yoshinori

  岐阜工業高等専門学校 環境都市工学科

• GOTO Yoshiaki

  名古屋工業大学大学院 社会工学専攻

Bibliographic Information

Other Title

• 水平2方向繰り返しを受けるアンカー部の損傷が鋼製橋脚の終局挙動に及ぼす影響

Abstract

 In order to prevent serious damages of anchorages that are hard to be repaired, the seismic design code after the Kobe earthquake adopts a new capacity design concept that strengths of anchorages must exceed those of pier cross sections at the base. In case when the anchorages constructed before the Kobe earthquake are upgraded after the Kobe earthquake, a similar capacity design concept is adopted. However, more damages are allowed in these anchorages for the ease of upgrading. In the modeling of the above two types of anchorages in the seismic analysis, however, pier bases are equally assumed to be rigidly connected to concrete footings in spite of the difference of the damage level allowed to the anchorages. Herein the validity of the assumptions of rigid connection for two types of anchorages is examined under more realistic bi-directional cyclic load as well as unidirectional cyclic load. In addition, the effect of the pier-base restraint is investigated on the ultimate behavior of steel bridge piers.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 69 (2), 295-314, 2013

  Japan Society of Civil Engineers

Keywords

• anchorage
• steel bridge pier
• seismic design
• bi-directional
• component method

Details

• CRID: 1390001205351509888
• NII Article ID: 130004556894
• DOI: 10.2208/jscejseee.69.295
• ISSN: 21854653
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed