Strength and Plastic Rotation Capacity of I-Shaped Beams with Grid-Purlin System Subjected to Cyclic Loading

Matsui, Ryota; Koizumi, Koichi; Lin, Pao-Chun; Iwanaga, Masanobu; Wu, An-Chien; Takeuchi, Toru; Tsai, Keh-Chuyan

Strength and Plastic Rotation Capacity of I-Shaped Beams with Grid-Purlin System Subjected to Cyclic Loading

Matsui, Ryota; Koizumi, Koichi; Lin, Pao-Chun et al.

Journal of structural engineering, 2021, 147(7), 04021103

Permalink : https://hdl.handle.net/2115/81960

このアイテムのアクセス数:359件（2026-10-17 09:52 集計）

閲覧可能ファイル

ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.1061/(ASCE)ST.1943-541X.0003017			34

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権	open access
URI	https://hdl.handle.net/2115/81960
タイトル	Strength and Plastic Rotation Capacity of I-Shaped Beams with Grid-Purlin System Subjected to Cyclic Loading
著者	Matsui, Ryota ; Koizumi, Koichi ; Lin, Pao-Chun ; Iwanaga, Masanobu ; Wu, An-Chien ; Takeuchi, Toru ; Tsai, Keh-Chuyan
著者名 Matsui, Ryota
著者名 Koizumi, Koichi
著者名 Lin, Pao-Chun
著者名 Iwanaga, Masanobu
著者名 Wu, An-Chien
著者名 Takeuchi, Toru
著者名 Tsai, Keh-Chuyan
言語	英語
キーワード	Beam
	Purlin
	Stability bracing of beams
	Plastic rotation capacity
	Cyclic loading test
発行日	2021-07
出版者	American Society of Civil Engineers (ASCE)
収録物名	Journal of structural engineering
巻(号)	147(7)
ページ	04021103
抄録	This paper introduces a grid-purlin system, which was composed of secondary rectangular-hollow-section grids welded onto the top flange of I-shaped beams of moment frames. The welded grid-purlin itself may play a role of a lateral bracing member for the welded beam. However, the ultimate strength, plastic rotation capacity, or other structural characteristics of this grid-purlin system remain poorly understood. This paper presents two full-scale cyclic loading tests on specimens with I-shaped beams 700 mm deep, 240 mm wide, and 13 m long. The diagonal length of grids in the square grid-purlin of the specimen was 1.3 m on-center, and two different depths of the sections were selected for the purlin sections. Both specimens successfully achieved fully plastic moments at a plastic rotation exceeding 0.04 rad. This shows that the grid-purlin system provides reliable lateral bracing. Continuum finite-element (CFE) analysis was performed to simulate the hysteretic experimental response of the grid-purlin system. This CFE model was used to examine the plastic rotation capacity for a variety of combinations of I-shaped beams and grid-purlins.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0733-9445
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1061/(ASCE)ST.1943-541X.0003017