露出柱脚付低層鋼構造物の地震時応答性状と柱脚挙動についてその4 柱軸力に関係する因子と影響について

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/12420
ファイル
タイトル
露出柱脚付低層鋼構造物の地震時応答性状と柱脚挙動についてその4 柱軸力に関係する因子と影響について
別タイトル
A SEISMICRESPONSE OF FRAME & COLUMN-BASE FOR LOW-RISE STEEL STRUCTURE WITH EXPOSED COLUMN-BASEpart 4 _ Effectivity & factor for column axial force
著者
氏名 山西 央朗
ヨミ ヤマニシ テルアキ
別名 Teruaki YAMANISHI
キーワード
exposed column-base, column-base axial force, rotational spring
抄録

 Exposed column-base had double flag type restoring force characteristics, and it strength, rotational rigidity & hysteresis were affected by the column axial force. That characteristics understand obtain from partial frame experiment. Moreover, the influence of its characteristics on steel structure seismic response examined by time history analysis of steel structure with rotational spring, that rotational spring had double flag type restoring force characteristics.
 However, partial frame experiment was no agreement boundary condition of column-base in structure on ground motion, and rotational spring was no agreement influence of axial force. Therefore, seismic response & working stress of exposed column-base with steel structure included many uncertainty about building structural design.
 The author discussed exposed column-base behavior and structure response on ground motion, that uses seismic response analysis results obtain from low-rise steel structure with model that can reproduce the column-base behavior.
 In this paper, exposed column-base around plastic deformation are unaffected by up-down acceleration of earthquake. On the other hand, gravity acceleration are very important consideration in its understand.

掲載雑誌名
広島工業大学紀要. 研究編
56
開始ページ
83
終了ページ
93
出版年月日
2022-03
出版者
広島工業大学
ISSN
1346-9975
NCID
AA11599110
本文言語
日本語
資料タイプ
紀要論文
著者版フラグ
権利情報
publisher
区分
it-hiroshima