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  1. B200 工学部/工学研究科
  2. B200e 会議資料
  3. 国際会議

AGEING EFFECTS ON HIGH DAMPING BRIDGE RUBBER BEARING

http://hdl.handle.net/2237/18879
http://hdl.handle.net/2237/18879
8021de77-7d09-4a12-92a9-f01c97dab7e0
名前 / ファイル ライセンス アクション
B-107.pdf B-107.pdf (514.7 kB)
Item type 会議発表論文 / Conference Paper(1)
公開日 2013-11-13
タイトル
タイトル AGEING EFFECTS ON HIGH DAMPING BRIDGE RUBBER BEARING
言語 en
著者 Gu, Haosheng

× Gu, Haosheng

WEKO 50141

en Gu, Haosheng

Search repository
Itoh, Yoshito

× Itoh, Yoshito

WEKO 50142

en Itoh, Yoshito

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
キーワード
主題Scheme Other
主題 High damping rubber
キーワード
主題Scheme Other
主題 aging
キーワード
主題Scheme Other
主題 thermal oxidation
キーワード
主題Scheme Other
主題 long-term performance
抄録
内容記述 In recent years high damping rubber (HDR) material has attracted much attention of technologists because it possesses both flexibility and high damping properties. However, it is also known that rubber performance drops due to the ageing effect. Many problems are still not clear, for example, how does the property of HDR material change over the time, which environmental factor dominates the degradation of HDR, in what way does ageing progress from the surface to the interior of the HDR bearing, and what influence does ageing produce on the mechanical performance of HDR bridge bearing. In order to solve these problems, in this study a series of accelerated exposure tests are carried out on HDR pieces and blocks. Firstly, different degradation factors such as thermal oxidation, ultraviolet, ozone, low temperature ozone, salt water and acid rain are applied to HDR specimens. The property variations are examined and the thermal oxidation is found to be the predominant degradation factor. Then, thermal oxidation tests are performed on HDR blocks at various elevated temperatures and the development of the property profiles is investigated. An aging model for HDR bearing is developed to predict the mechanical behaviors at any position inside the bearing. Next, based on the predicted material properties, FEM analysis is carried out using the constitutive law. Finally, the long-term performance of aged HDR bearing is clarified. Using the Arrhenius methodology, the test conditions may be transformed to the real environment, so that the future performance a HDR bridge bearing may be estimated with the site condition taken into consideration.
言語 en
内容記述タイプ Abstract
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_5794
タイプ conference paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
書誌情報 en : Proceedings of the 6th Asia-Pacific Structural Engineering and Construction Conference (APSEC 2006), 5–6 September 2006, Kuala Lumpur, Malaysia

p. B1-B17, 発行日 2006-09
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/18879
識別子タイプ HDL
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