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Title
Japanese:局部座屈崩壊形式を考慮した H 形断面梁部材の構造性能評価 
English:STRUCTURAL PERFORMANCE EVALUATION OF I-SHAPED BEAM MEMBERS CONSIDERING LOCAL BUCKLING COLLAPSE MODE 
Author
Japanese: 三井 和也, 五十嵐 規矩夫.  
English: Kazuya Mitsui, Kikuo Ikarashi.  
Language Japanese 
Journal/Book name
Japanese:日本建築学会構造系論文集 
English:Journal of Structural and Construction Engineering (Transactions of AIJ) 
Volume, Number, Page Vol. 90    Issue 835    pp. 1085-1096
Published date Sept. 1, 2025 
Publisher
Japanese:一般社団法人 日本建築学会 
English:Architectural Institute of Japan 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
File
DOI https://doi.org/10.3130/aijs.90.1085
Abstract This paper investigates the collapse modes of local buckling in I-shaped beam members subjected to monotonic loading, aiming to enhance the accuracy of structural performance evaluation. Parametric finite element analysis explores the influence of member geometry and stress state on collapse modes of local buckling. Index PFB and αp are proposed to classify the collapse modes of local buckling that develop after plasticization. Furthermore, a novel structural performance evaluation index WFp is presented, which utilize the proposed index. This index WFp enables more precise structural performance assessment by considering the local buckling collapse modes associated with various member geometries.

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