Effect of revised design earthquake ground motions considering zones factors on nonlinear response of steel bridge piers

S. Kitaichi, K. Ono*, S. Okada

*この研究の対応する著者

研究成果: Paper査読

抄録

In 2012, Level 2 Earthquake Ground Motions (Type I) and 'modification factor for zones (zone factor)' in the seismic design specifications for highway bridges in Japan were revised. Design earthquake ground motions should be multiplied by zone factors to evaluate the seismic performance. Regarding one of zones, Type I design earthquake ground motions are remarkably changed from the former earthquake ground motions multiplied by "0.85" to the revised ones multiplied by "1.2". The purpose of this paper is to investigate the effect of design earthquake ground motions considering zone factors on nonlinear response of steel bridge piers. The time-history dynamic analysis on the single-degree-of-freedom system was adopted in order to identify whether the bridges have enough seismic performance. Comparing obtained maximum response displacements of two kinds of earthquake ground motions (Type I and Type II), this paper came to conclusions. The results revealed that, regarding some zones, the Type I design earthquake ground motions have generally caused larger maximum response displacement than that of Type II.

本文言語English
出版ステータスPublished - 2013
外部発表はい
イベント13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 - Sapporo, Japan
継続期間: 2013 9 112013 9 13

Other

Other13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
国/地域Japan
CitySapporo
Period13/9/1113/9/13

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設

フィンガープリント

「Effect of revised design earthquake ground motions considering zones factors on nonlinear response of steel bridge piers」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル