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
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Title
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
Title Alternative
A SEISMICRESPONSE OF FRAME & COLUMN-BASE FOR LOW-RISE STEEL STRUCTURE WITH EXPOSED COLUMN-BASEpart 4 _ Effectivity & factor for column axial force
Author
氏名 山西 央朗
ヨミ ヤマニシ テルアキ
別名 Teruaki YAMANISHI
Subject
exposed column-base, column-base axial force, rotational spring
Abstract

 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.

Journal Title
広島工業大学紀要. 研究編
Volume
56
Spage
83
Epage
93
Published Date
2022-03
Publisher
広島工業大学
ISSN
1346-9975
NCID
AA11599110
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
Rights
publisher
Set
it-hiroshima