せん断パネルダンパーの設計式に関する一考察 : (その1)等価せん断座屈変形角

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/10642
File
Title
せん断パネルダンパーの設計式に関する一考察 : (その1)等価せん断座屈変形角
Title Alternative
A DESIGN FORMULA OF SHEAR PANEL DAMPER : (Part 1) Equivalent Shear Buckling Limit Deformation Angle
Author
氏名 玉井 宏章
ヨミ タマイ ヒロユキ
別名 Tamai Hiroyuki
氏名 尾川 勝彦
ヨミ オガワ カツヒコ
別名 Ogawa Katsuhiko
Subject
hysteretic damper
cyclic loading test
shear buckling
shear panel damper
plastic deformation
Abstract

A shear-panel-damper, consists of a panel, surrounding four flanges and stiffeners, is used as an aseismic hysteretic damper for buildings in Japan. A crack easily grows in the shear-panel-damper when the panel shows shear buckling during cyclic loading under severe earthquake. The shear buckling can be detected only by checking the maximum-deformation- angle. For relatively thin panel, when width-to-thickness ratio is large, plastic deformation capacity of the damper can be evaluated by using the maximum-deformation-angle. On the contrary, when width-to-thickness ratio is relatively small, very low cycle fatigue life is essential for relatively thick panel to predict the usage limit of the damper because failure pattern change where crack grows the tow of welding between panel and flanges. Estimate expression of plastic deformation capacity for shear-thick-panel-damper, which has parameters as normalized width-to-thickness-ratio and deformation-angel was presented. To show the validity of the estimation expression, cyclic loading tests of shear-panel-damper were performed to verify the expression. Also clumped panels subjected to cyclic in-plane shear deformation were analyzed using geometrical and material non-linear F. E. M. analysis to check shear buckling of the panel. These results showed the validity and effectiveness of the expression.

Journal Title
広島工業大学紀要. 研究編
Volume
46
Spage
139
Epage
148
Published Date
2012-02
Publisher
広島工業大学
ISSN
1346-9975
NCID
AA11599110
NAID
40019182645
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima