SEISMIC RESPONSE OF ECCENTRICALLY BRACED STEEL FRAMES WITH PARTIAL COLUMNS ALLOWED TO UPLIFT : Effects of uplift strength of base plates

• MIDORIKAWA Mitsumasa

  Gracd School of Eng, Hokkaido Univ.

• HORI Hirotake

  Gracd School of Eng, Hokkaido Univ.

• ASARI Tetsuhiro

  Gracd School of Eng, Hokkaido Univ.

Bibliographic Information

Other Title

• 部分的に柱浮き上がりを許容した偏心筋違付鉄骨架構の地震応答 : ベースプレートの浮き上がり耐力が応答に及ぼす影響

Abstract

Previous studies have suggested that rocking vibration accompanied with uplift motion might reduce the seismic damage of buildings subjected to severe earthquake motions. In this paper, the seismic response of eccentrically braced steel frames with partial columns allowed to uplift is evaluated and compared with that of fixed-base frames by numerical analyses, whose prototype test frame of a full-scale six-story eccentrically braced steel building structure was tested by pseudo-dynamic testing technique in Tsukuba in 1982 to 1984. The results show that the base shears are reduced while the roof drifts and the uplift displacements are increased in the frames with colunm uplift, as compared to the fixed-base frames, on the condition that the uplift yield strength of base plates is less than a half of colunm axial loads.

Journal

• Journal of structural engineering. B

  Journal of structural engineering. B (55), 527-535, 2009-03-27

  Architectural Institute of Japan

Keywords

• Inelastic seismic response analysis
• Eccentrically braced steel frame
• Partially uplift columns
• Yielding base plate

Details

• CRID: 1574231877631824000
• NII Article ID: 110009706249
• NII Book ID: AN10249636
• ISSN: 09108033
• Web Site: https://www.aij.or.jp/paper/detail.html?productId=398474
• Text Lang: ja
• Data Source:
  • CiNii Articles
  • KAKEN