Structural Engineering and Mechanics

  • 제24권3호
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  • Pages.355-374
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Cellular and corrugated cross-sectioned thin-walled steel bridge-piers/columns

  • Ucak, Alper (Department of Civil Engineering, Catholic University of America) ;
  • Tsopelas, Panos (Department of Civil Engineering, Catholic University of America)
  • 투고 : 2005.08.02
  • 심사 : 2006.04.04
  • 발행 : 2006.10.20
⟨ 이전 논문 다음 논문 ⟩

초록

Thin walled steel bridge-piers/columns are vulnerable to damage, when subjected to earthquake excitations. Local buckling, global buckling or interaction between local and global buckling usually is the cause of this damage, which results in significant strength reduction of the member. In this study new innovative design concepts, "thin-walled corrugated steel columns" and "thin-walled cellular steel columns" are presented, which allow the column to undergo large plastic deformations without significant strength reduction; hence dissipate energy under cyclic loading. It is shown that, compared with the conventional designs, circular and stiffened box sections, these new innovative concepts might results in cost-effective designs, with improved buckling and ductility properties. Using a finite element model, that takes the non-linear material properties into consideration, it is shown that the corrugations will act like longitudinal stiffeners that are supporting each other, thus improving the buckling behavior and allowing for reduction of the overall wall thickness of the column.

키워드

과제정보

연구 과제 주관 기관 : National Science Foundation

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피인용 문헌

  1. Load Path Effects in Circular Steel Columns under Bidirectional Lateral Cyclic Loading vol.141, pp.5, 2015, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001057
  2. Discussion of “Stability and Ductility of Thin-Walled Circular Steel Columns under Cyclic Bidirectional Loading” by Yoshiaki Goto, Kunsheng Jiang, and Makoto Obata vol.134, pp.5, 2008, https://doi.org/10.1061/(ASCE)0733-9445(2008)134:5(865)
  3. Buckling Strength and Ductility Evaluation of Thin-Walled Steel Tubular Columns with Uniform and Graded Thickness under Cyclic Loading vol.24, pp.1, 2019, https://doi.org/10.1061/(ASCE)BE.1943-5592.0001324