炭素繊維プレートによる鋼構造建築建物の接着補強工法に関する基礎的研究

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/3719
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Title
炭素繊維プレートによる鋼構造建築建物の接着補強工法に関する基礎的研究
Title Alternative
On Rehabilitation of Steel Building Using Bonding Carbon Fiber Reinforced Plastic Plates
Author
氏名 玉井 宏章
ヨミ タマイ ヒロユキ
別名 Tamai Hiroyuki
氏名 高松 隆夫
ヨミ タカマツ タカオ
別名 Takamatsu Takao
氏名 櫻庭 誠
ヨミ サクラバ マコト
別名 Sakuraba Makoto
氏名 灰谷 徳治
ヨミ ハイタニ トクジ
別名 Haitani Tokuji
氏名 服部 明生
ヨミ ハットリ アケオ
別名 Hattori Akeo
Subject
cyclic thermal history
galvanic corrosion
bonding strength
CFRP
NDC
524.91
Abstract

Aging of existing steel buildings necessitate the development of simple and efficient rehabilitation technique. We have been developing a strengthening method with bonding Carbon Fiber Reinforced Plastic Plate (CFRP) to enhance the usage life of steel buildings. Coefficient of expansion of CFRP is one-tenth smaller than that of steel. The change of temperature during daytime and night amounts to 40℃ so that large thermal stress occurs in adhesive layer between CFRP and steel. Cyclic thermal stress causes degradation of the bonding strength. Further, CFRP and steel have electro-conductivity. Although the adhesive between CFRP and steel has non-electro-conductivity, intense rust (galvanic corrosion) may occur when CFRP partially touches steel member. The partial galvanic corrosion may deteriorate the bonding strength between CFRP and steel. In this study, Heat cycle tests on steel plate bonding CFRP are made to evaluate the durability of cyclic thermal stress. Also, galvanic corrosion tests under dry and wet cycle atmosphere using salt water are carried out. We show these basic data for infiuence of galvanic corrosion and cyclic thermal stress on bonding strength between CFRP and steel plate.

Journal Title
広島工業大学紀要. 研究編
Volume
41
Spage
143
Epage
150
Published Date
2007
Publisher
広島工業大学
ISSN
13469975
NCID
AA11599110
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima