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A static analysis-based method for estimating the maximum out-of-plane inelastic seismic response of steel arch bridges

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タイトル: A static analysis-based method for estimating the maximum out-of-plane inelastic seismic response of steel arch bridges
著者: Cetinkaya, Osman Tunc / Nakamura, Shozo / Takahashi, Kazuo
発行日: 2006年 4月
出版者: Elsevier Ltd.
引用: Engineering Structures, 28(5), pp.635-647; 2006
抄録: This paper presents a method for estimating the maximum inelastic out-of-plane seismic response of upper-deck steel arch bridges. The method employs the equal-energy assumption to predict the maximum response without the need for dynamic response analysis. Firstly, applicability of the equal-energy assumption to upper-deck steel arch bridges is examined numerically by performing free vibration analysis, pushover analysis, and elastic and inelastic dynamic response analyses. Models with different arch-rise to span ratio and arch rib spacing are generated and the influence of these parameters on the applicability of the assumption is studied. Although the assumption resulted in conservative side estimation, in many cases the results were too conservative to be practical for design practice. On the other hand, some tendencies that make it possible to develop some correction functions to improve the estimation accuracy of the equal-energy assumption were found regardless of any parameters. Finally, by using the proposed correction functions and the response spectra a method that does not require dynamic response analysis for the estimation of maximum inelastic seismic demand is developed and its validity is evidenced by numerical analyses.
キーワード: Dynamic response analysis / Equal energy assumption / Pushover analysis / Seismic design / Steel arch bridges
URI: http://hdl.handle.net/10069/22306
ISSN: 01410296
DOI: 10.1016/j.engstruct.2005.09.017
権利: Copyright © 2005 Elsevier Ltd All rights reserved.
資料タイプ: Journal Article
原稿種類: author
出現コレクション:060 学術雑誌論文

引用URI : http://hdl.handle.net/10069/22306



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